diff --git a/doc/guix.texi b/doc/guix.texi
index 35ab66c005..9df49185ad 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -4791,7 +4791,9 @@ The general syntax is:
 guix hash @var{option} @var{file}
 @end example
 
-@command{guix hash} has the following options:
+When @var{file} is @code{-} (a hyphen), @command{guix hash} computes the
+hash of data read from standard input.  @command{guix hash} has the
+following options:
 
 @table @code
 
@@ -12240,6 +12242,58 @@ which may be insufficient for some operations.
 The file name of the qcow2 image.
 @end table
 
+The default @command{run-vm.sh} script that is returned by an invokation of
+@command{guix system vm} does not add a @command{-net user} flag by default.
+To get network access from within the vm add the @code{(dhcp-client-service)}
+to your system definition and start the VM using
+@command{`guix system vm config.scm` -net user}.  An important caveat of using
+@command{-net user} for networking is that @command{ping} will not work, because
+it uses the ICMP protocol.  You'll have to use a different command to check for
+network connectivity, like for example @command{curl}.
+
+@subsubsection Connecting Through SSH
+
+To enable SSH inside a VM you need to add a SSH server like @code{(dropbear-service)}
+or @code{(lsh-service)} to your VM.  The @code{(lsh-service}) doesn't currently
+boot unsupervised.  It requires you to type some characters to initialize the
+randomness generator.  In addition you need to forward the SSH port, 22 by
+default, to the host.  You can do this with
+
+@example
+`guix system vm config.scm` -net user,hostfwd=tcp::10022-:22
+@end example
+
+To connect to the VM you can run
+
+@example
+ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 10022
+@end example
+
+The @command{-p} tells @command{ssh} the port you want to connect to.
+@command{-o UserKnownHostsFile=/dev/null} prevents @command{ssh} from complaining
+every time you modify your @command{config.scm} file and the
+@command{-o StrictHostKeyChecking=no} prevents you from having to allow a
+connection to an unknown host every time you connect.
+
+@subsubsection Using @command{virt-viewer} with Spice
+
+As an alternative to the default @command{qemu} graphical client you can
+use the @command{remote-viewer} from the @command{virt-viewer} package.  To
+connect pass the @command{-spice port=5930,disable-ticketing} flag to
+@command{qemu}.  See previous section for further information on how to do this.
+
+Spice also allows you to do some nice stuff like share your clipboard with your
+VM.  To enable that you'll also have to pass the following flags to @command{qemu}:
+
+@example
+-device virtio-serial-pci,id=virtio-serial0,max_ports=16,bus=pci.0,addr=0x5
+-chardev spicevmc,name=vdagent,id=vdagent
+-device virtserialport,nr=1,bus=virtio-serial0.0,chardev=vdagent,
+name=com.redhat.spice.0
+@end example
+
+You'll also need to add the @pxref{Miscellaneous Services, Spice service}.
+
 @node Defining Services
 @subsection Defining Services
 
diff --git a/gnu/local.mk b/gnu/local.mk
index fb739f46e9..39950b0de9 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -734,6 +734,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/openjpeg-CVE-2016-5157.patch		\
   %D%/packages/patches/openjpeg-CVE-2016-7163.patch		\
   %D%/packages/patches/openjpeg-use-after-free-fix.patch	\
+  %D%/packages/patches/openocd-nrf52.patch			\
   %D%/packages/patches/openssh-memory-exhaustion.patch		\
   %D%/packages/patches/openssl-runpath.patch			\
   %D%/packages/patches/openssl-1.1.0-c-rehash-in.patch		\
diff --git a/gnu/packages/backup.scm b/gnu/packages/backup.scm
index a617bae7ea..8ec2ee45df 100644
--- a/gnu/packages/backup.scm
+++ b/gnu/packages/backup.scm
@@ -406,13 +406,13 @@ detection, and lossless compression.")
 (define-public borg
   (package
     (name "borg")
-    (version "1.0.7")
+    (version "1.0.8")
     (source (origin
               (method url-fetch)
               (uri (pypi-uri "borgbackup" version))
               (sha256
                (base32
-                "1l9iw55w5x51yxl3q89cf6avg80lajxvc8qz584hrsmnk6i56cr0"))
+                "1fdfi0yzzdrrlml6780n4fh61sqm7pw6fcd1y67kfkvw8hy5c0k9"))
               (modules '((guix build utils)))
               (snippet
                '(for-each
diff --git a/gnu/packages/ccache.scm b/gnu/packages/ccache.scm
index 15a20ff08b..181fba2fd0 100644
--- a/gnu/packages/ccache.scm
+++ b/gnu/packages/ccache.scm
@@ -29,7 +29,7 @@
 (define-public ccache
   (package
     (name "ccache")
-    (version "3.3.2")
+    (version "3.3.3")
     (source
      (origin
       (method url-fetch)
@@ -37,7 +37,7 @@
                           version ".tar.xz"))
       (sha256
        (base32
-        "0c25l78hi36682l9cyxca78i8sdkmgmv9afip1s21y6q4g5qaxlh"))))
+        "1v04ky2mhvx8gnqfbs9x2vvf4i9mzph4fwdg72s9xyhwv92sf0iv"))))
     (build-system gnu-build-system)
     (native-inputs `(("perl" ,perl)     ;for test.sh
                      ("which" ,(@ (gnu packages base) which))))
diff --git a/gnu/packages/cups.scm b/gnu/packages/cups.scm
index 75f5d8ed77..1d93bb0bd5 100644
--- a/gnu/packages/cups.scm
+++ b/gnu/packages/cups.scm
@@ -320,14 +320,14 @@ device-specific programs to convert and print many types of files.")
 (define-public hplip
   (package
     (name "hplip")
-    (version "3.16.8")
+    (version "3.16.10")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://sourceforge/hplip/hplip/" version
                                   "/hplip-" version ".tar.gz"))
               (sha256
                (base32
-                "1svcalf2nc7mvxndp9zz3xp43w66z45rrsr5syl8fx61a6p6gnm9"))))
+                "117f1p0splg51ljn4nn97c0mbl0jba440ahb3d8njq7p6h1lxd25"))))
     (build-system gnu-build-system)
     (home-page "http://hplipopensource.com/")
     (synopsis "HP Printer Drivers")
diff --git a/gnu/packages/dns.scm b/gnu/packages/dns.scm
index e15ebed887..f60f1d1c54 100644
--- a/gnu/packages/dns.scm
+++ b/gnu/packages/dns.scm
@@ -5,6 +5,7 @@
 ;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016 John Darrington <jmd@gnu.org>
 ;;; Copyright © 2016 ng0 <ng0@we.make.ritual.n0.is>
+;;; Copyright © 2016 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -23,6 +24,7 @@
 
 (define-module (gnu packages dns)
   #:use-module (gnu packages autotools)
+  #:use-module (gnu packages base)
   #:use-module (gnu packages databases)
   #:use-module (gnu packages groff)
   #:use-module (gnu packages linux)
@@ -161,3 +163,40 @@ asynchronous fashion.")
                    license:bsd-3
                    (license:non-copyleft "file://LICENSE") ; includes.h
                    license:openssl))))
+
+(define-public yadifa
+  (package
+    (name "yadifa")
+    (version "2.2.1-6281")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "http://cdn.yadifa.eu/sites/default/files/releases/"
+                           name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "0vj71z7i9lfbnp93k28aplwldp5mfli0kvrbwmha6fjha6kcr910"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("which" ,which)))
+    (inputs
+     `(("openssl" ,openssl)))
+    (arguments
+     `(#:phases (modify-phases %standard-phases
+                  (add-before 'configure 'omit-example-configurations
+                              (lambda _ (substitute* "Makefile.in"
+                                          ((" (etc|var)") "")))))
+       #:configure-flags (list "--sysconfdir=/etc"      "--localstatedir=/var"
+                               "--enable-shared"        "--disable-static"
+                               "--enable-messages"      "--enable-ctrl"
+                               ;; NSID is a rarely-used debugging aid, that also
+                               ;; causes the build to fail. Just disable it.
+                               "--disable-nsid")))
+    (home-page "http://www.yadifa.eu/")
+    (synopsis "Authoritative DNS name server")
+    (description "YADIFA is an authorative name server for the Domain Name
+System (DNS).  It aims for both higher performance and a smaller memory
+footprint than other implementations, while remaining fully RFC-compliant.
+YADIFA supports dynamic record updates and the Domain Name System Security
+Extensions (DNSSEC).")
+    (license license:bsd-3)))
diff --git a/gnu/packages/embedded.scm b/gnu/packages/embedded.scm
index a7af69f609..11df32a6f2 100644
--- a/gnu/packages/embedded.scm
+++ b/gnu/packages/embedded.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2016 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2016 Theodoros Foradis <theodoros.for@openmailbox.org>
+;;; Copyright © 2016 David Craven <david@craven.ch>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -28,10 +29,15 @@
   #:use-module (guix build-system trivial)
   #:use-module (guix build utils)
   #:use-module (gnu packages)
+  #:use-module (gnu packages autotools)
   #:use-module (gnu packages cross-base)
   #:use-module (gnu packages flex)
   #:use-module (gnu packages gcc)
+  #:use-module (gnu packages gdb)
+  #:use-module (gnu packages libftdi)
+  #:use-module (gnu packages libusb)
   #:use-module (gnu packages perl)
+  #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages texinfo))
 
 ;; We must not use the released GCC sources here, because the cross-compiler
@@ -223,3 +229,136 @@ languages are C and C++.")
 (define-public arm-none-eabi-nano-toolchain-6
   (arm-none-eabi-toolchain gcc-arm-none-eabi-6
                            newlib-nano-arm-none-eabi))
+
+(define-public gdb-arm-none-eabi
+  (package
+    (inherit gdb)
+    (name "gdb-arm-none-eabi")
+    (arguments
+     `(#:configure-flags '("--target=arm-none-eabi"
+                           "--enable-multilib"
+                           "--enable-interwork"
+                           "--enable-languages=c,c++"
+                           "--disable-nls")
+     ,@(package-arguments gdb)))))
+
+(define-public libjaylink
+  ;; No release tarballs available.
+  (let ((commit "faa2a433fdd3de211728f3da5921133214af9dd3")
+        (revision "1"))
+    (package
+      (name "libjaylink")
+      (version (string-append "0.1.0-" revision "."
+                              (string-take commit 7)))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "git://git.zapb.de/libjaylink.git")
+                      (commit commit)))
+                (file-name (string-append name "-" version "-checkout"))
+                (sha256
+                 (base32
+                  "02crr56csz8whq3q4mrmdzzgwp5b0qvxm0fb18drclc3zj44yxl2"))))
+      (build-system gnu-build-system)
+      (native-inputs
+       `(("autoconf" ,autoconf)
+         ("automake" ,automake)
+         ("libtool" ,libtool)
+         ("pkg-config" ,pkg-config)))
+      (inputs
+       `(("libusb" ,libusb)))
+      (arguments
+       `(#:phases
+         (modify-phases %standard-phases
+           (add-before 'configure 'autoreconf
+             (lambda _
+               (zero? (system* "autoreconf" "-vfi")))))))
+      (home-page "http://repo.or.cz/w/libjaylink.git")
+      (synopsis "Library to interface Segger J-Link devices")
+      (description "libjaylink is a shared library written in C to access
+SEGGER J-Link and compatible devices.")
+      (license license:gpl2+))))
+
+(define-public jimtcl
+  (package
+    (name "jimtcl")
+    (version "0.77")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "https://github.com/msteveb/jimtcl"
+                    "/archive/" version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "1cmk3qscqckg70chjyimzxa2qcka4qac0j4wq908kiijp45cax08"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         ;; Doesn't use autoconf.
+         (replace 'configure
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out")))
+               (zero? (system* "./configure"
+                               (string-append "--prefix=" out)))))))))
+    (home-page "http://jim.tcl.tk")
+    (synopsis "Small footprint Tcl implementation")
+    (description "Jim is a small footprint implementation of the Tcl programming
+language.")
+    (license license:bsd-2)))
+
+(define-public openocd
+  ;; FIXME: Use tarball release after nrf52 patch is merged.
+  (let ((commit "674141e8a7a6413cb803d90c2a20150260015f81")
+        (revision "1"))
+    (package
+      (name "openocd")
+      (version (string-append "0.9.0-" revision "."
+                              (string-take commit 7)))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "git://git.code.sf.net/p/openocd/code.git")
+                      (commit commit)))
+                (sha256
+                 (base32
+                  "1i86jp0wawq78d73z8hp7q1pn7lmlvhjjr19f7299h4w40a5jf8j"))
+                (file-name (string-append name "-" version "-checkout"))
+                (patches
+                 (search-patches "openocd-nrf52.patch"))))
+      (build-system gnu-build-system)
+      (native-inputs
+       `(("autoconf" ,autoconf)
+         ("automake" ,automake)
+         ("libtool" ,libtool)
+         ("pkg-config" ,pkg-config)))
+      (inputs
+       `(("hidapi" ,hidapi)
+         ("jimtcl" ,jimtcl)
+         ("libftdi" ,libftdi)
+         ("libjaylink" ,libjaylink)
+         ("libusb-compat" ,libusb-compat)))
+      (arguments
+       '(#:configure-flags
+         (append (list "--disable-werror"
+                       "--disable-internal-jimtcl"
+                       "--disable-internal-libjaylink")
+                 (map (lambda (programmer)
+                        (string-append "--enable-" programmer))
+                      '("amtjtagaccel" "armjtagew" "buspirate" "ftdi"
+                        "gw16012" "jlink" "oocd_trace" "opendous" "osbdm"
+                        "parport" "aice" "cmsis-dap" "dummy" "jtag_vpi"
+                        "remote-bitbang" "rlink" "stlink" "ti-icdi" "ulink"
+                        "usbprog" "vsllink" "usb-blaster-2" "usb_blaster"
+                        "presto" "openjtag")))
+         #:phases
+         (modify-phases %standard-phases
+           (add-before 'configure 'autoreconf
+             (lambda _
+               (zero? (system* "autoreconf" "-vfi")))))))
+      (home-page "http://openocd.org")
+      (synopsis "On-Chip Debugger")
+      (description "OpenOCD provides on-chip programming and debugging support
+with a layered architecture of JTAG interface and TAP support.")
+      (license license:gpl2))))
diff --git a/gnu/packages/flex.scm b/gnu/packages/flex.scm
index c2135a1bc0..c1f74d65ad 100644
--- a/gnu/packages/flex.scm
+++ b/gnu/packages/flex.scm
@@ -79,3 +79,22 @@ regular expressions for each rule.  Whenever it finds a match, it
 executes the corresponding C code.")
     (license (non-copyleft "file://COPYING"
                         "See COPYING in the distribution."))))
+
+(define-public flex-2.6.1
+  ;; The kservice and solid packages use flex.  extra-cmake-modules
+  ;; forces C89 for all C files for compatibility with windows.
+  ;; Flex 2.6.0 generates a lexer containing a single line comment.  Single
+  ;; line comments are part of the C99 standard, so the lexer won't compile
+  ;; if C89 is used.
+  (package
+    (inherit flex)
+    (version "2.6.1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "https://github.com/westes/flex"
+                    "/releases/download/v" version "/"
+                    "flex-" version ".tar.gz"))
+              (sha256
+               (base32
+                "0fy14c35yz2m1n1m4f02by3501fn0cca37zn7jp8lpp4b3kgjhrw"))))))
diff --git a/gnu/packages/games.scm b/gnu/packages/games.scm
index 39a49f3276..ec97c98f82 100644
--- a/gnu/packages/games.scm
+++ b/gnu/packages/games.scm
@@ -329,7 +329,7 @@ asynchronously and at a user-defined speed.")
 (define-public chess
   (package
     (name "chess")
-    (version "6.2.3")
+    (version "6.2.4")
     (source
      (origin
        (method url-fetch)
@@ -337,9 +337,9 @@ asynchronously and at a user-defined speed.")
                            ".tar.gz"))
        (sha256
         (base32
-         "10hvnfhj9bkpz80x20jgxyqvgvrcgfdp8sfcbcrf1dgjn9v936bq"))))
+         "1vw2w3jwnmn44d5vsw47f8y70xvxcsz9m5msq9fgqlzjch15qhiw"))))
     (build-system gnu-build-system)
-    (home-page "http://www.gnu.org/software/chess")
+    (home-page "https://www.gnu.org/software/chess")
     (synopsis "Full chess implementation")
     (description "GNU Chess is a chess engine.  It allows you to compete
 against the computer in a game of chess, either through the default terminal
diff --git a/gnu/packages/gnuzilla.scm b/gnu/packages/gnuzilla.scm
index d15066cbd6..8a39ed4b2d 100644
--- a/gnu/packages/gnuzilla.scm
+++ b/gnu/packages/gnuzilla.scm
@@ -410,7 +410,8 @@ standards.")
        ("glib" ,glib)
        ("gstreamer" ,gstreamer)
        ("gst-plugins-base" ,gst-plugins-base)
-       ("gtk+" ,gtk+-2)
+       ("gtk+" ,gtk+)
+       ("gtk+-2" ,gtk+-2)
        ("pango" ,pango)
        ("freetype" ,freetype)
        ("hunspell" ,hunspell)
@@ -454,7 +455,7 @@ standards.")
        ;; practice somehow.  See <http://hydra.gnu.org/build/378133>.
        #:validate-runpath? #f
 
-       #:configure-flags '("--enable-default-toolkit=cairo-gtk2"
+       #:configure-flags '("--enable-default-toolkit=cairo-gtk3"
                            "--enable-pango"
                            "--enable-gio"
                            "--enable-svg"
diff --git a/gnu/packages/kde-frameworks.scm b/gnu/packages/kde-frameworks.scm
index 3790e8f63f..9df37ac38d 100644
--- a/gnu/packages/kde-frameworks.scm
+++ b/gnu/packages/kde-frameworks.scm
@@ -35,6 +35,7 @@
   #:use-module (gnu packages databases)
   #:use-module (gnu packages disk)
   #:use-module (gnu packages docbook)
+  #:use-module (gnu packages flex)
   #:use-module (gnu packages freedesktop)
   #:use-module (gnu packages gettext)
   #:use-module (gnu packages glib)
@@ -54,16 +55,16 @@
 (define-public extra-cmake-modules
   (package
     (name "extra-cmake-modules")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "01m12ml529pwr2sal951r5z6yb1rwbpid1y4k14nlk3xqgmdakwa"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0n7vw2a4kxdgpsc1wn9f1d0y01p6qfk8ac360rq329bvdpigxmnj"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("qtbase" ,qtbase))) ; For tests (needs qmake)
@@ -94,15 +95,15 @@ common build settings used in software produced by the KDE community.")
   (package
     (name "phonon")
     (version "4.9.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/phonon"
-                            "/" version "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "1q5hvsk4sfcb91625wcmldy7kgjmfpmpmkgzi6mxkqdd307v8x5v"))))
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/phonon"
+                    "/" version "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1q5hvsk4sfcb91625wcmldy7kgjmfpmpmkgzi6mxkqdd307v8x5v"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -120,16 +121,16 @@ common build settings used in software produced by the KDE community.")
 (define-public gpgmepp
   (package
     (name "gpgmepp")
-    (version "16.04.3")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/applications"
-                            "/" version "/src/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "1850pdysi7c1w0nxnhcbrhnkrfqyrcl0laxyjcw1g1ln764pwcmj"))))
+    (version "16.08.2")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/applications"
+                    "/" version "/src/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0828qlhdi1i26n2xgyb01c0q77m6jlppbxv6mprryxq0ma88940a"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -147,15 +148,15 @@ common build settings used in software produced by the KDE community.")
   (package
     (name "kpmcore")
     (version "2.2.1")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/kpmcore"
-                            "/" version "/src/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "1blila6ncqbmzhycx3szrbkxc000pzh62956mw5ihxvhrqpncg2p"))))
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/kpmcore"
+                    "/" version "/src/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1blila6ncqbmzhycx3szrbkxc000pzh62956mw5ihxvhrqpncg2p"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -184,16 +185,16 @@ common build settings used in software produced by the KDE community.")
 (define-public attica
   (package
     (name "attica")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "0d368gmds7m7k5pnn625wqsij38cvxk1gkm4zv24phnk9f67v7cw"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0w6dwq83vj70m8rf52x60a64f6s6h0y7c948j3hddfql7s3ghha7"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -216,16 +217,16 @@ http://freedesktop.org/wiki/Specifications/open-collaboration-services/")
 (define-public bluez-qt
   (package
     (name "bluez-qt")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "0gy0m7lcwwklf021l5i3v7j0cl7qz7cgvzrwpj87ix3kyw5xs80z"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "111gqxw1bvazdhxk5rcfhi438i6bd92r3wvlkxsdqrp7ypcqdpig"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("dbus" ,dbus)
@@ -234,13 +235,13 @@ http://freedesktop.org/wiki/Specifications/open-collaboration-services/")
      `(("qtbase" ,qtbase)))
     (arguments
      `(#:configure-flags
-        '("-DINSTALL_UDEV_RULE:BOOL=OFF")
+       '("-DINSTALL_UDEV_RULE:BOOL=OFF")
        #:phases
-        (modify-phases %standard-phases
-          (replace 'check
-            (lambda* _
-              (setenv "DBUS_FATAL_WARNINGS" "0")
-              (zero? (system* "dbus-launch" "ctest" ".")))))))
+       (modify-phases %standard-phases
+         (replace 'check
+           (lambda _
+             (setenv "DBUS_FATAL_WARNINGS" "0")
+             (zero? (system* "dbus-launch" "ctest" ".")))))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "QML wrapper for BlueZ")
     (description "bluez-qt is a Qt-style library for accessing the bluez
@@ -250,21 +251,28 @@ Bluetooth stack.  It is used by the KDE Bluetooth stack, BlueDevil.")
 (define-public breeze-icons
   (package
     (name "breeze-icons")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "1dh7bijx99sdb3vn6394wmm5cq0fvvmz8h17sx4hakmbga849cx2"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "12awfvka9sgdgh7dyg7cw7myw7fxrx1w93s1gyhdq2drjsdbghgz"))))
     (build-system cmake-build-system)
     (native-inputs
-     `(("extra-cmake-modules" ,extra-cmake-modules)))
+     `(("extra-cmake-modules" ,extra-cmake-modules)
+       ("fdupes" ,fdupes)
+       ("libxml2" ,libxml2)))
     (inputs
      `(("qtbase" ,qtbase)))
+    ;; FIXME: Dupes test fails. Issue is fixed upstream
+    ;; Remove when updating to 5.28.
+    ;; https://github.com/KDE/breeze-icons/commit/22b383359e3a0e02d4828e6fa8ed8a3d213440b1
+    (arguments
+     `(#:tests? #f))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Default KDE Plasma 5 icon theme")
     (description "Breeze provides a freedesktop.org compatible icon theme.
@@ -277,16 +285,16 @@ It is the default icon theme for the KDE Plasma 5 desktop.")
 (define-public kapidox
   (package
     (name "kapidox")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "19a7alvn71nxflsyi7y3hghx1iw04qqc77qy54mcxcpkiyvpsggf"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "193m0qpcqdkspdcwc8cwabjjcqyd9d0m5kl53mycyiv1m220x11l"))))
     (build-system cmake-build-system)
     (arguments
      `(#:tests? #f)) ; has no test target
@@ -304,7 +312,6 @@ It is the default icon theme for the KDE Plasma 5 desktop.")
      `(("qtbase" ,qtbase)))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "KDE Doxygen Tools")
-
     (description "This framework contains scripts and data for building API
 documentation (dox) in a standard format and style for KDE.
 
@@ -320,16 +327,16 @@ documentation.")
 (define-public karchive
   (package
     (name "karchive")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "1n5nfhrfvqnrdjgjjy7arqik4fya5bp3dvxa16mlhqr19azkavzq"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1c7bifmzyr398p1qx9qfxp893wbr44sjn3sda9q0hdpmw2i7yf3z"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -354,16 +361,16 @@ GZip format, via a subclass of QIODevice.")
 (define-public kcodecs
   (package
     (name "kcodecs")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "1qpzjh3qc2zz80j2bmlinipbispms14k9bmqw8v61zhi6in9z14c"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0f4k276sm0svh5y8yyq8hfc5vy60cpsrwany7kswyh22m57v5j8a"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -389,16 +396,16 @@ Internet).")
 (define-public kconfig
   (package
     (name "kconfig")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "1dc2i6icyigw1j6qxgdza6j2g8afh390qmxsa2a54mwl84fkfmxv"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "18dpm0r4nnvmxrask6rv5dkniwna9hh72ffdnvjgrh8p5djs9szi"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -409,18 +416,18 @@ Internet).")
      `(("qtbase" ,qtbase)))
     (arguments
      `(#:phases
-        (modify-phases %standard-phases
-          (add-before 'check 'check-setup
-            (lambda* _
-              (setenv "HOME" (getcwd))
-              (setenv "TMPDIR" (getcwd))
+       (modify-phases %standard-phases
+         (add-before 'check 'check-setup
+           (lambda _
+             (setenv "HOME" (getcwd))
+             (setenv "TMPDIR" (getcwd))
              #t))
-          (add-before 'check 'start-xorg-server
-            (lambda* (#:key inputs #:allow-other-keys)
-              ;; The test suite requires a running X server.
-              (system (string-append (assoc-ref inputs "xorg-server")
-                                     "/bin/Xvfb :1 &"))
-              (setenv "DISPLAY" ":1")
+         (add-before 'check 'start-xorg-server
+           (lambda* (#:key inputs #:allow-other-keys)
+             ;; The test suite requires a running X server.
+             (system (string-append (assoc-ref inputs "xorg-server")
+                                    "/bin/Xvfb :1 &"))
+             (setenv "DISPLAY" ":1")
              #t)))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Kconfiguration settings framework for Qt")
@@ -456,16 +463,16 @@ propagate their changes to their respective configuration files.")
 (define-public kcoreaddons
   (package
     (name "kcoreaddons")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "06sx7by3nvaridnavj5p0bxv4nh47n708jlacfw8ydaikmd9i03h"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0rzpxajv041kdbk92rwxq1qnvzyrxfjy154d8257yj2fj76w1gnw"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -476,12 +483,13 @@ propagate their changes to their respective configuration files.")
     (arguments
      `(#:tests? #f ; FIXME: Test failure caused by stout/stderr being interleaved.
        #:phases
-        (modify-phases %standard-phases
-          (add-before 'check 'check-setup
-            (lambda* _
-              (setenv "CTEST_OUTPUT_ON_FAILURE" "1") ; enable debug output
-              (setenv "HOME" (getcwd))
-              (setenv "TMPDIR" (getcwd)))))))
+       (modify-phases %standard-phases
+         (add-before 'check 'check-setup
+           (lambda _
+             (setenv "CTEST_OUTPUT_ON_FAILURE" "1") ; enable debug output
+             (setenv "HOME" (getcwd))
+             (setenv "TMPDIR" (getcwd))
+             #t)))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Qt addon library with a collection of non-GUI utilities")
     (description "KCoreAddons provides classes built on top of QtCore to
@@ -494,16 +502,16 @@ many more.")
 (define-public kdbusaddons
   (package
     (name "kdbusaddons")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "183nxqrhz4qk4qfp1w4an0scp2dvfqcaqbpg4cgbgk0z590q0pkk"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1vgdl9z5xyfr2b5z7n2vdh0s6zab6ccxp30p1cy8hhhrsf04663m"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -514,11 +522,11 @@ many more.")
        ("qtx11extras" ,qtx11extras)))
     (arguments
      `(#:phases
-        (modify-phases %standard-phases
-          (replace 'check
-            (lambda* _
-              (setenv "DBUS_FATAL_WARNINGS" "0")
-              (zero? (system* "dbus-launch" "ctest" ".")))))))
+       (modify-phases %standard-phases
+         (replace 'check
+           (lambda _
+             (setenv "DBUS_FATAL_WARNINGS" "0")
+             (zero? (system* "dbus-launch" "ctest" ".")))))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Convenience classes for DBus")
     (description "KDBusAddons provides convenience classes on top of QtDBus,
@@ -530,16 +538,16 @@ as well as an API to create KDED modules.")
 (define-public kdnssd
   (package
     (name "kdnssd")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "01b650g031apxc3vd2m91g2fxqk9l8ap67z6rafniphfwy8i0d5m"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0dq2i4f4ny5cwgd41mjw5i7cf23ns55s2m13cjvxvy90nwhlymqp"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -557,16 +565,16 @@ infrastructure.")
 (define-public kguiaddons
   (package
     (name "kguiaddons")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "0ig96ah20ybg5rwpswj9va2klvkh2q4amwxmgy3z4niwfsm2g3ic"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1skvlcj0fgb4am02vlm4fyd52f9yn4y0aj5arcfz3qps5cjzr6xg"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -575,11 +583,11 @@ infrastructure.")
      `(("qtbase" ,qtbase)))
     (arguments
      `(#:phases
-        (modify-phases %standard-phases
-          (add-before 'check 'check-setup
-            (lambda* _
-              (setenv "QT_QPA_PLATFORM" "offscreen")
-              #t)))))
+       (modify-phases %standard-phases
+         (add-before 'check 'check-setup
+           (lambda _
+             (setenv "QT_QPA_PLATFORM" "offscreen")
+             #t)))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Utilities for graphical user interfaces")
     (description "The KDE GUI addons provide utilities for graphical user
@@ -589,16 +597,16 @@ interfaces in the areas of colors, fonts, text, images, keyboard input.")
 (define-public ki18n
   (package
     (name "ki18n")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "0cw24spmwsqa3ppkw03cm6yjd3sfll0dbbk2ya76fd4nw9hb00dv"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0a66z325bvdv7g6ysml2bf8559nkjhv2fxwj1ja6vsxkn95d54ff"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("gettext" ,gettext-minimal)
@@ -611,10 +619,11 @@ interfaces in the areas of colors, fonts, text, images, keyboard input.")
        ("qtscript" ,qtscript)))
     (arguments
      `(#:phases
-        (modify-phases %standard-phases
-          (add-before 'check 'check-setup
-            (lambda* _
-              (setenv "HOME" (getcwd)))))))
+       (modify-phases %standard-phases
+         (add-before 'check 'check-setup
+           (lambda _
+             (setenv "HOME" (getcwd))
+             #t)))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "KDE Gettext-based UI text internationalization")
     (description "KI18n provides functionality for internationalizing user
@@ -631,16 +640,16 @@ translation scripting.")
 (define-public kidletime
   (package
     (name "kidletime")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "09jsj0pj27h93nr8v46savs6b93h8frydinfr7wlijkvpsl02jb4"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1cv6d2vylz7vymn4v0brv2jp1kzscvm9wh1ylp3wyi1jqyblgjfw"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -658,16 +667,16 @@ or user activity.")
 (define-public kitemmodels
   (package
     (name "kitemmodels")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "1s1p4nw1pqdzbdwvjnka17p9avf00wadr437p4f96md1lvh3sh69"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "00qgp5i35r7k9gy43wypn9fa7zxiqqip89dzbw8r6rabinihqzy2"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -676,13 +685,13 @@ or user activity.")
      `(("qtbase" ,qtbase)))
     (arguments
      `(#:phases
-        (modify-phases %standard-phases
-          (add-before 'check 'start-xorg-server
-            (lambda* (#:key inputs #:allow-other-keys)
-              ;; The test suite requires a running X server.
-              (system (string-append (assoc-ref inputs "xorg-server")
-                                     "/bin/Xvfb :1 &"))
-              (setenv "DISPLAY" ":1")
+       (modify-phases %standard-phases
+         (add-before 'check 'start-xorg-server
+           (lambda* (#:key inputs #:allow-other-keys)
+             ;; The test suite requires a running X server.
+             (system (string-append (assoc-ref inputs "xorg-server")
+                                    "/bin/Xvfb :1 &"))
+             (setenv "DISPLAY" ":1")
              #t)))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Set of item models extending the Qt model-view framework")
@@ -719,16 +728,16 @@ model to observers
 (define-public kitemviews
   (package
     (name "kitemviews")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "0y3fx9hk1x27arrmwfzq783a44cs7p8dpmhxrwzh0di4mwa8jafw"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1469i10y2c3i1pdhzl9nk177y4n1mlc7p5w7kivdcrvf9ilxvbkx"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -738,16 +747,17 @@ model to observers
      `(("qtbase" ,qtbase)))
     (arguments
      `(#:phases
-        (modify-phases %standard-phases
-          (add-before 'check 'check-setup
-            (lambda* _
-              (setenv "DBUS_FATAL_WARNINGS" "0")))
-          (add-before 'check 'start-xorg-server
-            (lambda* (#:key inputs #:allow-other-keys)
-              ;; The test suite requires a running X server.
-              (system (string-append (assoc-ref inputs "xorg-server")
-                                     "/bin/Xvfb :1 &"))
-              (setenv "DISPLAY" ":1")
+       (modify-phases %standard-phases
+         (add-before 'check 'check-setup
+           (lambda _
+             (setenv "DBUS_FATAL_WARNINGS" "0")
+             #t))
+         (add-before 'check 'start-xorg-server
+           (lambda* (#:key inputs #:allow-other-keys)
+             ;; The test suite requires a running X server.
+             (system (string-append (assoc-ref inputs "xorg-server")
+                                    "/bin/Xvfb :1 &"))
+             (setenv "DISPLAY" ":1")
              #t)))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Set of item views extending the Qt model-view framework")
@@ -759,16 +769,16 @@ to flat and hierarchical lists.")
 (define-public kplotting
   (package
     (name "kplotting")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "0gpypq9kh4b5s6dc7py3m117k3nbxczsfkxgxd9zxvr35kig7ya2"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1qp9q8g9yxy359bylyqyqxjq9wjismajrg4xhxx5xn4s6znyrxny"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -777,13 +787,13 @@ to flat and hierarchical lists.")
      `(("qtbase" ,qtbase)))
     (arguments
      `(#:phases
-        (modify-phases %standard-phases
-          (add-before 'check 'start-xorg-server
-            (lambda* (#:key inputs #:allow-other-keys)
-              ;; The test suite requires a running X server.
-              (system (string-append (assoc-ref inputs "xorg-server")
-                                     "/bin/Xvfb :1 &"))
-              (setenv "DISPLAY" ":1")
+       (modify-phases %standard-phases
+         (add-before 'check 'start-xorg-server
+           (lambda* (#:key inputs #:allow-other-keys)
+             ;; The test suite requires a running X server.
+             (system (string-append (assoc-ref inputs "xorg-server")
+                                    "/bin/Xvfb :1 &"))
+             (setenv "DISPLAY" ":1")
              #t)))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Data plotting library")
@@ -797,16 +807,16 @@ pixel units.")
 (define-public kwayland
   (package
     (name "kwayland")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "1h5anbqrxcl1s8kx1l53vcsfr8ifamcjqd47dk8a7lwr1ga6myq2"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0va1kmki2xr4mx2918h333mfkqs5v1mhbzyf71hq190izdz0jdss"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -818,10 +828,11 @@ pixel units.")
      `(#:tests? #f ; FIXME tests require weston to run
                    ; weston requires wayland flags in mesa
        #:phases
-         (modify-phases %standard-phases
-           (add-before 'check 'check-setup
-             (lambda* _
-               (setenv "XDG_RUNTIME_DIR" "/tmp"))))))
+       (modify-phases %standard-phases
+         (add-before 'check 'check-setup
+           (lambda _
+             (setenv "XDG_RUNTIME_DIR" "/tmp")
+             #t)))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Qt-style API to interact with the wayland client and server")
     (description "As the names suggest they implement a Client respectively a
@@ -835,16 +846,16 @@ represented by a QPoint or a QSize.")
 (define-public kwidgetsaddons
   (package
     (name "kwidgetsaddons")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "1kppx0ppfhnb6q6sijs2dffyar86wkkx8miqavsjsgw1l2wiymcx"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0p9gxna7y7nigpi0ri7k45g4pf1svq0kxrhk4wf7rj58rilhcfrl"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -855,23 +866,23 @@ represented by a QPoint or a QSize.")
     (arguments
      `(#:tests? #f ; FIXME: Regression after update to qt 5.7
        #:phases
-        (modify-phases %standard-phases
-          (add-before 'check 'check-setup
-            (lambda _
-              (setenv "QT_QPA_PLATFORM" "offscreen") ; a better solution to Xvfb
-              (setenv "CTEST_OUTPUT_ON_FAILURE" "1") ; enable debug info
-              (setenv "DBUS_FATAL_WARNINGS" "0")
-              #t))
-          (add-before 'check 'start-xorg-server
-            (lambda* (#:key inputs #:allow-other-keys)
-              ;; The test suite requires a running X server.
-              ;; Xvfb doesn't have proper glx support and needs a pixeldepth
-              ;; of 24 bit to avoid "libGL error: failed to load driver: swrast"
-              ;;                    "Could not initialize GLX"
-              (system (string-append (assoc-ref inputs "xorg-server")
-                                     "/bin/Xvfb :1 -screen 0 640x480x24 &"))
-              (setenv "DISPLAY" ":1")
-              #t)))))
+       (modify-phases %standard-phases
+         (add-before 'check 'check-setup
+           (lambda _
+             (setenv "QT_QPA_PLATFORM" "offscreen") ; a better solution to Xvfb
+             (setenv "CTEST_OUTPUT_ON_FAILURE" "1") ; enable debug info
+             (setenv "DBUS_FATAL_WARNINGS" "0")
+             #t))
+         (add-before 'check 'start-xorg-server
+           (lambda* (#:key inputs #:allow-other-keys)
+             ;; The test suite requires a running X server.
+             ;; Xvfb doesn't have proper glx support and needs a pixeldepth
+             ;; of 24 bit to avoid "libGL error: failed to load driver: swrast"
+             ;;                    "Could not initialize GLX"
+             (system (string-append (assoc-ref inputs "xorg-server")
+                                    "/bin/Xvfb :1 -screen 0 640x480x24 &"))
+             (setenv "DISPLAY" ":1")
+             #t)))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Large set of desktop widgets")
     (description "Provided are action classes that can be added to toolbars or
@@ -883,16 +894,16 @@ configuration pages, message boxes, and password requests.")
 (define-public kwindowsystem
   (package
     (name "kwindowsystem")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "0w5ym8msl80v3q65253pdpj9f1fmb658rnndlbkrgpmm1rv1n6dz"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0w49lpwicl71gyyf2aisvmfjpvjl3w1rqpx4a42ph0aywjihjmhx"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -923,33 +934,33 @@ lower level classes for interaction with the X Windowing System.")
 (define-public modemmanager-qt
   (package
     (name "modemmanager-qt")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "0khz5bf84xxa8aqpzwb6x839xx6dbiadwqhyj7cvgha65fh2xinh"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1zw5frscvbsp0jpb071ssqgvm097ylw3zy69y7f0dybhps6lv2jv"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
        ("dbus" ,dbus)
        ("pkg-config" ,pkg-config)))
     (propagated-inputs
-     ; Headers contain #include <ModemManager/ModemManager.h>
+     ;; Headers contain #include <ModemManager/ModemManager.h>
      `(("modem-manager", modem-manager)))
     (inputs
      `(("qtbase" ,qtbase)))
     (arguments
      `(#:phases
-        (modify-phases %standard-phases
-          (replace 'check
-            (lambda* _
-              (setenv "DBUS_FATAL_WARNINGS" "0")
-              (zero? (system* "dbus-launch" "ctest" ".")))))))
+       (modify-phases %standard-phases
+         (replace 'check
+           (lambda _
+             (setenv "DBUS_FATAL_WARNINGS" "0")
+             (zero? (system* "dbus-launch" "ctest" ".")))))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Qt wrapper for ModemManager DBus API")
     (description "ModemManagerQt provides access to all ModemManager features
@@ -961,58 +972,59 @@ messages.")
 (define-public networkmanager-qt
   (package
     (name "networkmanager-qt")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "11wy0ds0hqbba900ggkcxjfqc9n65xlzc3h1zv9433nn5d75v6fy"))))
-     (build-system cmake-build-system)
-     (native-inputs
-      `(("extra-cmake-modules" ,extra-cmake-modules)
-        ("dbus" ,dbus)
-        ("pkg-config" ,pkg-config)))
-     (propagated-inputs
-      ; Headers contain #include <NetworkManager.h> and
-      ;                 #include <libnm/NetworkManager.h>
-      `(("network-manager" ,network-manager)))
-     (inputs
-      `(("qtbase" ,qtbase)))
-     (arguments
-      `(#:phases
-         (modify-phases %standard-phases
-           (replace 'check
-             (lambda* _
-               (setenv "DBUS_FATAL_WARNINGS" "0")
-               (zero? (system* "dbus-launch" "ctest" ".")))))))
-     (home-page "https://community.kde.org/Frameworks")
-     (synopsis "Qt wrapper for NetworkManager DBus API")
-     (description "NetworkManagerQt provides access to all NetworkManager
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0fnj0b2j4v51f12b3v59psdza2krdkidj22b9a9jwn224lg4852y"))))
+    (build-system cmake-build-system)
+    (native-inputs
+     `(("extra-cmake-modules" ,extra-cmake-modules)
+       ("dbus" ,dbus)
+       ("pkg-config" ,pkg-config)))
+    (propagated-inputs
+     ;; Headers contain #include <NetworkManager.h> and
+     ;;                 #include <libnm/NetworkManager.h>
+     `(("network-manager" ,network-manager)))
+    (inputs
+     `(("qtbase" ,qtbase)))
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (replace 'check
+           (lambda _
+             (setenv "DBUS_FATAL_WARNINGS" "0")
+             (zero? (system* "dbus-launch" "ctest" ".")))))))
+    (home-page "https://community.kde.org/Frameworks")
+    (synopsis "Qt wrapper for NetworkManager DBus API")
+    (description "NetworkManagerQt provides access to all NetworkManager
 features exposed on DBus.  It allows you to manage your connections and control
 your network devices and also provides a library for parsing connection settings
 which are used in DBus communication.")
-     (license license:lgpl2.1+)))
+    (license license:lgpl2.1+)))
 
 (define-public oxygen-icons
   (package
     (name "oxygen-icons")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "5" "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "1c7spjbzk04725vv0ly7vmyvwa96mfa5ki2pm146ld4888a896wm"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "5" "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1lb09ykj5ayj5lv7w2k2pqis7z61clr3gkinf6n7jghnlc96222g"))))
     (build-system cmake-build-system)
     (native-inputs
-     `(("extra-cmake-modules" ,extra-cmake-modules)))
+     `(("extra-cmake-modules" ,extra-cmake-modules)
+       ("fdupes" ,fdupes)))
     (inputs
      `(("qtbase" ,qtbase)))
     (home-page "https://community.kde.org/Frameworks")
@@ -1023,20 +1035,25 @@ which are used in DBus communication.")
 (define-public solid
   (package
     (name "solid")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "00wvsxcnvhdx7ijzpcz5wny2ypkxr1drdpr4yvawgpwa678l1107"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "01qlfj30n8sr8xd8l8fimg7hs7h70ynhalk2m9l8dz2qay2pdl27"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("bison" ,bison)
        ("extra-cmake-modules" ,extra-cmake-modules)
+       ;; extra-cmake-modules forces C89 for all C files for compatibility with
+       ;; Windows.  Flex 2.6.0 generates a lexer containing a single line
+       ;; comment.  Single line comments are part of the C99 standard, so the
+       ;; lexer won't compile if C89 is used.
+       ("flex" ,flex-2.6.1)
        ("qttools" ,qttools)))
     (inputs
      `(("qtbase" ,qtbase)
@@ -1051,16 +1068,16 @@ system.")
 (define-public sonnet
   (package
     (name "sonnet")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "152xz7fb1iwhb5w1n4xqvc648iaxi0inrl4kavxcsir61das1xyl"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "07i3gng309vsf5kp5dlwca0lpi3iqc0lp0ixdvx75q832gk8ivrv"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1077,16 +1094,16 @@ ASpell and HUNSPELL.")
 (define-public threadweaver
   (package
     (name "threadweaver")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "02g60zr9cc4bg1p90giich4n0qvqaiakz0y94qrnyj9f7fg0yksl"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0mg5i125b008x6162a5h2q14fg81m17md00017n09xljw3099kqy"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -1107,16 +1124,16 @@ uses a job-based interface to queue tasks and execute them in an efficient way."
 (define-public kauth
   (package
     (name "kauth")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "14sjjfgl3arqyqcr77w9qhpnd8mrnh53r5rfss6bvlk26bmihs49"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "17z6dh1qdpd490z84g6ynl8bcrr9naalvh34ybnpipvx3qs50kwl"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("dbus" ,dbus)
@@ -1128,11 +1145,11 @@ uses a job-based interface to queue tasks and execute them in an efficient way."
        ("qtbase" ,qtbase)))
     (arguments
      `(#:phases
-        (modify-phases %standard-phases
-          (replace 'check
-            (lambda* _
-              (setenv "DBUS_FATAL_WARNINGS" "0")
-              (zero? (system* "dbus-launch" "ctest" ".")))))))
+       (modify-phases %standard-phases
+         (replace 'check
+           (lambda _
+             (setenv "DBUS_FATAL_WARNINGS" "0")
+             (zero? (system* "dbus-launch" "ctest" ".")))))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Execute actions as privileged user")
     (description "KAuth provides a convenient, system-integrated way to offload
@@ -1143,16 +1160,16 @@ utilities.")
 (define-public kcompletion
   (package
     (name "kcompletion")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "1qln0v31gn86kzwhnkijr1ydf129n32jmiybbckrp4w6hyx6xfxv"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1mb64ii4ilhqhy9p6cl3phs17bg3lr4b60jkkm71yn2wnd4wl47s"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1164,11 +1181,11 @@ utilities.")
        ("qtbase" ,qtbase)))
     (arguments
      `(#:phases
-        (modify-phases %standard-phases
-          (add-before 'check 'check-setup
-            (lambda _
-              (setenv "QT_QPA_PLATFORM" "offscreen")
-              #t)))))
+       (modify-phases %standard-phases
+         (add-before 'check 'check-setup
+           (lambda _
+             (setenv "QT_QPA_PLATFORM" "offscreen")
+             #t)))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Powerful autocompletion framework and widgets")
     (description "This framework helps implement autocompletion in Qt-based
@@ -1179,16 +1196,16 @@ integrated it into your application's other widgets.")
 (define-public kcrash
   (package
     (name "kcrash")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "1lahgfwlp9b5rsl244kzp7rsl4ybv1q4qlvpv0xxz5ygssk48l0w"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "09wf4dzckc9l8dyl8qs1wc54h4rm38i2blzyyicm4iazi420lysk"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1200,13 +1217,13 @@ integrated it into your application's other widgets.")
        ("qtx11extras" ,qtx11extras)))
     (arguments
      `(#:phases
-        (modify-phases %standard-phases
-          (add-before 'check 'start-xorg-server
-            (lambda* (#:key inputs #:allow-other-keys)
-              ;; The test suite requires a running X server.
-              (system (string-append (assoc-ref inputs "xorg-server")
-                                     "/bin/Xvfb :1 &"))
-              (setenv "DISPLAY" ":1")
+       (modify-phases %standard-phases
+         (add-before 'check 'start-xorg-server
+           (lambda* (#:key inputs #:allow-other-keys)
+             ;; The test suite requires a running X server.
+             (system (string-append (assoc-ref inputs "xorg-server")
+                                    "/bin/Xvfb :1 &"))
+             (setenv "DISPLAY" ":1")
              #t)))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Graceful handling of application crashes")
@@ -1217,16 +1234,16 @@ application crashes.")
 (define-public kdoctools
   (package
     (name "kdoctools")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "1r129kpq0d11b9l87cqbal6fm5ycwhsps1g3r1a7jsxz70scz4ri"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1hgg19da0918mx8z2614qljvj9j8bny78mwlyljf42814f3ycpam"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -1242,19 +1259,20 @@ application crashes.")
        ("qtbase" ,qtbase)))
     (arguments
      `(#:phases
-        (modify-phases %standard-phases
-          (add-after 'unpack 'cmake-find-docbook
-            (lambda* (#:key inputs #:allow-other-keys)
-              (substitute* (find-files "cmake" "\\.cmake$")
-                (("CMAKE_SYSTEM_PREFIX_PATH")
-                  "CMAKE_PREFIX_PATH"))
-               (substitute* "cmake/FindDocBookXML4.cmake"
-                 (("^.*xml/docbook/schema/dtd.*$")
-                   "xml/dtd/docbook\n"))
-               (substitute* "cmake/FindDocBookXSL.cmake"
-                 (("^.*xml/docbook/stylesheet.*$")
-                  (string-append "xml/xsl/docbook-xsl-"
-                                 ,(package-version docbook-xsl) "\n"))))))))
+       (modify-phases %standard-phases
+         (add-after 'unpack 'cmake-find-docbook
+           (lambda* (#:key inputs #:allow-other-keys)
+             (substitute* (find-files "cmake" "\\.cmake$")
+               (("CMAKE_SYSTEM_PREFIX_PATH")
+                "CMAKE_PREFIX_PATH"))
+             (substitute* "cmake/FindDocBookXML4.cmake"
+               (("^.*xml/docbook/schema/dtd.*$")
+                "xml/dtd/docbook\n"))
+             (substitute* "cmake/FindDocBookXSL.cmake"
+               (("^.*xml/docbook/stylesheet.*$")
+                (string-append "xml/xsl/docbook-xsl-"
+                               ,(package-version docbook-xsl) "\n")))
+             #t)))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Create documentation from DocBook")
     (description "Provides tools to generate documentation in various format
@@ -1264,16 +1282,16 @@ from DocBook files.")
 (define-public kfilemetadata
   (package
     (name "kfilemetadata")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "02n9qhpr0jlwdgdbid0k34abhs3bzhlsa56ybl5dq1aib6izk1sy"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1la6h05izgnps10py2gcn4xnwz3fm7dyswib57flc8phzipxbg5q"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1294,16 +1312,16 @@ by applications to write metadata.")
 (define-public kimageformats
   (package
     (name "kimageformats")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "12mhgckmhnvcnm8k7mk15mipxrnm7i9ip7ykbjh8nxjiwyk1pmwc"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0ijy7di9p37l6fjrmsday402vq4zibq1m37jghkvdymawxcrd22h"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1319,7 +1337,7 @@ by applications to write metadata.")
              (system (string-append (assoc-ref inputs "xorg-server")
                                     "/bin/Xvfb :1 &"))
              (setenv "DISPLAY" ":1")
-            #t)))))
+             #t)))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Plugins to allow QImage to support extra file formats")
     (description "This framework provides additional image format plugins for
@@ -1331,16 +1349,16 @@ formats.")
 (define-public kjobwidgets
   (package
     (name "kjobwidgets")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "1mcvrz66xcqjgbp08zpqsf943cm462wbqm5gh719p9s25hx8hwrc"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "05c6jzl2a37bfz5i7hzsjmrhh8ajx1gbz7j05wgal811m5m4ww8l"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1359,16 +1377,16 @@ asynchronous jobs.")
 (define-public knotifications
   (package
     (name "knotifications")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "0qryp41phnpx4r9wa6rfhmnzy7nxl0ijnyrafadf2n2xb53ipkpa"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "09v122nxfgqjzr2azfn2nh4q9l22i5wnsz9prs0i7s3m7y0d7pxn"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1386,10 +1404,11 @@ asynchronous jobs.")
      `(#:phases
        (modify-phases %standard-phases
          (add-before 'check 'check-setup
-           (lambda* _
-             (setenv "HOME" (getcwd))))
+           (lambda _
+             (setenv "HOME" (getcwd))
+             #t))
          (replace 'check
-           (lambda* _
+           (lambda _
              (setenv "DBUS_FATAL_WARNINGS" "0")
              (zero? (system* "dbus-launch" "ctest" ".")))))))
     (home-page "https://community.kde.org/Frameworks")
@@ -1401,16 +1420,16 @@ covers feedback and persistent events.")
 (define-public kpackage
   (package
     (name "kpackage")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "03aqzkpqz3c1v4qgwfbs3ncdbapiyg7psrkhxqv3z48rklavk1ri"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0y07zh8ryibm69ljp9f169qfal6r4lngz1ljxgrr6qw15cjkjygk"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -1425,9 +1444,10 @@ covers feedback and persistent events.")
        #:phases
        (modify-phases %standard-phases
          (add-before 'check 'check-setup
-           (lambda* _
+           (lambda _
              (setenv "CTEST_OUTPUT_ON_FAILURE" "1") ; enable debug output
-             (setenv "HOME" (getcwd)))))))
+             (setenv "HOME" (getcwd))
+             #t)))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Installation and loading of additional content as packages")
     (description "The Package framework lets the user install and load packages
@@ -1438,16 +1458,16 @@ were traditional plugins.")
 (define-public kpty
   (package
     (name "kpty")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "1ybvdzqpa53kkki9p5da0ff9x3c63rmksk7865wqwlgy8apzi2fs"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "06pka8cbw6a9rk2j5pkz34rfy10bv6il3wqyf7ala32ynv5rcgc3"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -1460,11 +1480,11 @@ were traditional plugins.")
        #:phases
        (modify-phases %standard-phases
          (add-after 'unpack 'patch-tests
-         (lambda _
-           (setenv "CTEST_OUTPUT_ON_FAILURE" "1")
-           (substitute* "autotests/kptyprocesstest.cpp"
-             (("/bin/bash") (which "bash")))
-           #t)))))
+           (lambda _
+             (setenv "CTEST_OUTPUT_ON_FAILURE" "1")
+             (substitute* "autotests/kptyprocesstest.cpp"
+               (("/bin/bash") (which "bash")))
+             #t)))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Interfacing with pseudo terminal devices")
     (description "This library provides primitives to interface with pseudo
@@ -1475,16 +1495,16 @@ and communicating with them using a pty.")
 (define-public kunitconversion
   (package
     (name "kunitconversion")
-    (version "5.24.0")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append "mirror://kde/stable/frameworks/"
-                            (version-major+minor version) "/"
-                            name "-" version ".tar.xz"))
-        (sha256
-         (base32
-          "03dfjn4lm6sl2zcdrvw0b9irzvkyc2w2j5xixag5j8nw373742h8"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "11rn6813jz7clb6fjp9nbdg1c350zh0yiprbr053wkdjrb3aca7c"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -1508,16 +1528,16 @@ gallons).")
 (define-public baloo
   (package
     (name "baloo")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "1ayfdg6j9lvas17ryjdv4a0kaj6vw3bxfy2x9nadl0gkc9pak4nh"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0dqa5sxz2z440h6zry7s1x0r1d919qky69i5fv2nir7y844xx2cc"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kcoreaddons" ,kcoreaddons)
@@ -1565,16 +1585,16 @@ maintaining an index of the contents of your files.")
 (define-public kactivities
   (package
     (name "kactivities")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "0s8g43zk6h35bq1am1nnhj0qvmhd6kz42gs8l7ybga0367jghzhf"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "08x07rlf2gff1j9jahznz2838919vab1ay8jppz3bp5kywx104yk"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -1612,16 +1632,16 @@ with other frameworks.")
 (define-public kactivities-stats
   (package
     (name "kactivities-stats")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "1z3xvpifxbd05b2xaxxyiypcpid7jgjb1qpwiyjj1gnfp4rjmzpc"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "134a3zgasza9wghp1lkiaar3sakag7vn82pm2kcrmr420a0jigsw"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -1642,16 +1662,16 @@ by which applications, and what documents have been linked to which activity.")
 (define-public kbookmarks
   (package
     (name "kbookmarks")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "10d8dnhvbrwp0dbmz93cqfdff6ir8iy3yiwaf9ihj6ma124qlyjn"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1lb20yn8s27h0965yf6w4v4wwlm80bl24mpsksp01z9f0711j8vm"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kwidgetsaddons" ,kwidgetsaddons)))
@@ -1684,16 +1704,16 @@ using the XBEL format.")
 (define-public kcmutils
   (package
     (name "kcmutils")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "0aws1c76s6wbp0xpr6qv6cfwq8dw82v00pkf9gy84sbxknwjnizk"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "04nbd0836azs2i0pq8hq8ljnmfc45mqs022zdn84xd2q3npl3hfx"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kconfigwidgets" ,kconfigwidgets)
@@ -1723,16 +1743,16 @@ KCModules can be created with the KConfigWidgets framework.")
 (define-public kconfigwidgets
   (package
     (name "kconfigwidgets")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "0v25r50gh5i984lzlv0rradghglcfqf0gsfmnkn23h87b86fm9l2"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0sbhirfsjmsxiwaqqh5jh85bhwmij93gj5knnb0bs0al4hy29918"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kauth" ,kauth)
@@ -1764,16 +1784,16 @@ their settings.")
 (define-public kdeclarative
   (package
     (name "kdeclarative")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "00ik9q1r6y6g5rkdq96yczgrxmcg85x00lipyljvc3x6xw6bixbz"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1a8pqwrwgmzarinhr9xxviqh9417p8icj8lwqg9ly0q0j3yv20dh"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kconfig" ,kconfig)
@@ -1824,16 +1844,16 @@ that offer bindings to some of the Frameworks.")
 (define-public kded
   (package
     (name "kded")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "0ngpxdxb596myn5r4kjxahx195bwklq33yvgjvcbxi2clg2wccaj"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "14f4qxia9p3vynv2ch9rs67zaxn9kpbas0fn0vwag1ikxb8qz0c2"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -1857,16 +1877,16 @@ started on demand.")
 (define-public kdesignerplugin
   (package
     (name "kdesignerplugin")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "0i0s8pwwhwh5hyyvkv0cnj0yyv0g5bnm5xw18knv2yagiy4bvb2j"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "157lny5v8js63nvw2iyc9j4cinqmyj75a389s46n8wqyygrz5v0v"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1894,16 +1914,16 @@ ini-style description files.")
 (define-public kdesu
   (package
     (name "kdesu")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "1ivcnhgvq75xvl0w9g7m45qzallz42ijaq0n1ap09lpdfmjbnrxk"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1l501z102ygibz4000jnngm0cggh2kaf6hzra1ngv5nxqxzkh31a"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kpty" ,kpty)))
@@ -1925,16 +1945,16 @@ with su and ssh respectively.")
 (define-public kemoticons
   (package
     (name "kemoticons")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "0gmc52k5jb553jvzxwsq79v5y87kgav8i5qqv4bqc9yl7p866zhn"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0rjw2g3lfdxiy56x61d0sdcmcs8rml6h29a05fp6xww2bqcvr9wq"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kservice" ,kservice)))
@@ -1953,7 +1973,8 @@ with su and ssh respectively.")
            (lambda _
              (setenv "HOME" (getcwd))
              (setenv "CTEST_OUTPUT_ON_FAILURE" "1") ; Enable debug output
-             (setenv "QT_QPA_PLATFORM" "offscreen"))))))
+             (setenv "QT_QPA_PLATFORM" "offscreen")
+             #t)))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Convert text emoticons to graphical emoticons")
     (description "KEmoticons converts emoticons from text to a graphical
@@ -1965,16 +1986,16 @@ emoticons coming from different providers.")
 (define-public kglobalaccel
   (package
     (name "kglobalaccel")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "123v0ld1q88hbm3d0mqgq6lcivfkqh7pbz4hb4n76ab5v43qc15c"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1z2knfxcla1f191cifij1fzw88b076yx6qjxraqfsmkc6g6i2bmj"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -1984,6 +2005,7 @@ emoticons coming from different providers.")
        ("kcrash" ,kcrash)
        ("kcoreaddons" ,kcoreaddons)
        ("kdbusaddons" ,kdbusaddons)
+       ("kservice" ,kservice)
        ("kwindowsystem" ,kwindowsystem)
        ("libxcb" ,libxcb)
        ("qtbase" ,qtbase)
@@ -2006,16 +2028,16 @@ window does not need focus for them to be activated.")
 (define-public kiconthemes
   (package
     (name "kiconthemes")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "1k5zig2n6wzfyv6pc8dpas2862mxjyxxza00m31myrfw5i1a1h6m"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0m70vcrxp0vvqw5grlsn19d2hgdhky8iv2pr0xwzw8v5yrnl1hh2"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)
@@ -2043,7 +2065,8 @@ window does not need focus for them to be activated.")
                                     "/share"))
              (setenv "HOME" (getcwd))
              (setenv "CTEST_OUTPUT_ON_FAILURE" "1") ; Enable debug output
-             (setenv "QT_QPA_PLATFORM" "offscreen"))))))
+             (setenv "QT_QPA_PLATFORM" "offscreen")
+             #t)))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Icon GUI utilities")
     (description "This library contains classes to improve the handling of icons
@@ -2053,16 +2076,16 @@ in applications using the KDE Frameworks.")
 (define-public kinit
   (package
     (name "kinit")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "1i7l6gid5hrrfglw1c461gpjg51dwz7cl4lx7ll8vz2ha8mz4d3n"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0sbpl1sp1ajarjmnvx2l3dr09afsay28kp2sf4yacrm4lrmhwzip"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -2097,16 +2120,16 @@ makes starting KDE applications faster and reduces memory consumption.")
 (define-public kio
   (package
     (name "kio")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "0zncj9yf8zaylazlwvirylpk9vki3j889b1x2s0aav54vvj7vdi5"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "129sglaw1480v3i1xdyv6k1w3spbj8s00rkdr5mzlcdaqiig69rn"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kbookmarks" ,kbookmarks)
@@ -2150,7 +2173,8 @@ makes starting KDE applications faster and reduces memory consumption.")
              (setenv "HOME" (getcwd))
              (setenv "XDG_RUNTIME_DIR" (getcwd))
              (setenv "CTEST_OUTPUT_ON_FAILURE" "1")
-             (setenv "QT_QPA_PLATFORM" "offscreen"))))))
+             (setenv "QT_QPA_PLATFORM" "offscreen")
+             #t)))))
     ;;(replace 'check
     ;;  (lambda _
     ;;    (setenv "DBUS_FATAL_WARNINGS" "0")
@@ -2169,16 +2193,16 @@ KIO enabled infrastructure.")
 (define-public knewstuff
   (package
     (name "knewstuff")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "0xdv3wh3100vzsx8p2zihy1dvh0wzfmrjkjq71v8igwz5d291zsj"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "05ikb7cvyx3cmrrjh2ss6439a49vmzbi3chjj23ffdz2nd2k7r2f"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("attica" ,attica)
@@ -2213,7 +2237,8 @@ KIO enabled infrastructure.")
            (lambda _ ; XDG_DATA_DIRS isn't set
              (setenv "HOME" (getcwd))
              (setenv "CTEST_OUTPUT_ON_FAILURE" "1")
-             (setenv "QT_QPA_PLATFORM" "offscreen"))))))
+             (setenv "QT_QPA_PLATFORM" "offscreen")
+             #t)))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Framework for downloading and sharing additional application data")
     (description "The KNewStuff library implements collaborative data sharing
@@ -2224,16 +2249,16 @@ specification.")
 (define-public knotifyconfig
   (package
     (name "knotifyconfig")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "1dij841fnqia4p44x2wnpdvl8cn3nkj833y0fah50fmipjc8r70b"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "088p19ynjs79zf7mq3gkds93dg72jj8pfya53xyhzdg8s6vyns9n"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -2266,16 +2291,16 @@ notifications which can be embedded in your application.")
 (define-public kparts
   (package
     (name "kparts")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "0z7qr93aq02i7g7cxgypx2rzlnsvbsx9cjblb0ijmad1nb8w3mix"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0rfsyr96s59ljp3jgmcwlvwzbgmlx7fvr62xswwmsnb8ah14k5rh"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kio" ,kio)
@@ -2316,16 +2341,16 @@ widgets with a user-interface defined in terms of actions.")
 (define-public kpeople
   (package
     (name "kpeople")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "0iknzkj23y927xh24kw5sjxyirhy6pkmfcmmgwzd78rba8a54qp2"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1w6sbd6djcpv36m9my4drqkrs1l3cryshpz1dx9z8p7afr296n8j"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -2345,7 +2370,8 @@ widgets with a user-interface defined in terms of actions.")
          (add-before 'check 'check-setup
            (lambda _
              (setenv "CTEST_OUTPUT_ON_FAILURE" "1") ; Enable debug output
-             (setenv "QT_QPA_PLATFORM" "offscreen"))))))
+             (setenv "QT_QPA_PLATFORM" "offscreen")
+             #t)))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Provides access to all contacts and aggregates them by person")
     (description "KPeople offers unified access to our contacts from different
@@ -2358,16 +2384,16 @@ to easily extend the contacts collection.")
 (define-public krunner
   (package
     (name "krunner")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "0ff87ijjd47jxf6zw2ggqgngnbyx1rj59wdfgy5wbi3acws6bafl"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1yyxyippmn0d9ycj1hdjvhl1zd31yxwg89a9zwmj8v8gdfr9flj9"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("plasma-framework" ,plasma-framework)))
@@ -2400,7 +2426,8 @@ to easily extend the contacts collection.")
          (add-before 'check 'check-setup
            (lambda _
              (setenv "CTEST_OUTPUT_ON_FAILURE" "1") ; Enable debug output
-             (setenv "QT_QPA_PLATFORM" "offscreen"))))))
+             (setenv "QT_QPA_PLATFORM" "offscreen")
+             #t)))))
     (home-page "https://community.kde.org/Frameworks")
     (synopsis "Framework for Plasma runners")
     (description "The Plasma workspace provides an application called KRunner
@@ -2412,22 +2439,28 @@ typed.")
 (define-public kservice
   (package
     (name "kservice")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "0w0nsg64d6xhgijr2vh0j5p544qi0q55jpqa9v9mv956zrrdssdk"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "129bjdr272qkz2inmagy8jnxasifrl4d82x8rp9akfar29qsj6x6"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kconfig" ,kconfig)
        ("kcoreaddons" ,kcoreaddons)))
     (native-inputs
-     `(("extra-cmake-modules" ,extra-cmake-modules)))
+     `(("bison" ,bison)
+       ("extra-cmake-modules" ,extra-cmake-modules)
+       ;; extra-cmake-modules forces C89 for all C files for compatibility with
+       ;; Windows.  Flex 2.6.0 generates a lexer containing a single line
+       ;; comment.  Single line comments are part of the C99 standard, so the
+       ;; lexer won't compile if C89 is used.
+       ("flex" ,flex-2.6.1)))
     (inputs
      `(("kcrash" ,kcrash)
        ("kdbusaddons" ,kdbusaddons)
@@ -2455,16 +2488,16 @@ types or handled by application specific code.")
 (define-public ktexteditor
   (package
     (name "ktexteditor")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "1ykj1kvm7k1vxb1w235d5hp2swwdqjyp2y4c3pxbvkn999h9x5q5"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "127wp4dg72skd6abn2vqffxg91bn59z8yxwy6lxyzvck2pc5v1ss"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kparts" ,kparts)))
@@ -2522,16 +2555,16 @@ library.")
 (define-public ktextwidgets
   (package
     (name "ktextwidgets")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "1q10xav2gkii6s3m31c9xvxf1988l7k2lpib6pyhgsidflmwjm02"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0aq2qx64wylxj5q5sr0dxv9h8bmn725llxyi7iwz31dg2ngfr7m4"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("ki18n" ,ki18n)
@@ -2567,16 +2600,16 @@ It supports rich text as well as plain text.")
 (define-public kwallet
   (package
     (name "kwallet")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "0zad5h4vsvcl2xv3vxsjwh42b71xbp6x6rj8cvmw8szr2rzz9gsx"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1mlrkzvbqk6r43yqrvv6jsc66brzjd321fp7mg7g3ny47va7hbc2"))))
     (build-system cmake-build-system)
     (native-inputs
      `(("extra-cmake-modules" ,extra-cmake-modules)))
@@ -2608,16 +2641,16 @@ the passwords on KDE work spaces.")
 (define-public kxmlgui
   (package
     (name "kxmlgui")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "1qhixldhhcbklmrpjh67440h1rrzqy70h57hw6ialjdsr3pl6ihp"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0hf55ip2irbsbg59r36njgb0h5ygpaspa4x6jfyi4bxj852c3hw1"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kconfig" ,kconfig)
@@ -2660,16 +2693,16 @@ descriptions for integrating actions from plugins.")
 (define-public kxmlrpcclient
   (package
     (name "kxmlrpcclient")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "06ap6ipzqimz1rfrcr7z8zc7idy7sg4a97dws7h52i34ms7jqnc8"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "17bavm8qj4r1kc67x5g20v1pl8arjqpn69hg7icp2b1b0vnfvav1"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kio" ,kio)))
@@ -2703,16 +2736,16 @@ setUrl, setUserAgent and call.")
 (define-public plasma-framework
   (package
     (name "plasma-framework")
-    (version "5.24.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "mirror://kde/stable/frameworks/"
-                           (version-major+minor version) "/"
-                           name "-" version ".tar.xz"))
-       (sha256
-        (base32
-         "0981vm00541dzihlr1fsax05biwp2ddpwjrmvnfysx5jagdc65cb"))))
+    (version "5.27.0")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "mirror://kde/stable/frameworks/"
+                    (version-major+minor version) "/"
+                    name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "11apg7h636dshswikjpz0qkapv8izqjjz47k7vs49x0byp802s5i"))))
     (build-system cmake-build-system)
     (propagated-inputs
      `(("kpackage" ,kpackage)
diff --git a/gnu/packages/libusb.scm b/gnu/packages/libusb.scm
index 0071f4f119..fe1bed1768 100644
--- a/gnu/packages/libusb.scm
+++ b/gnu/packages/libusb.scm
@@ -4,6 +4,7 @@
 ;;; Copyright © 2015 Andy Wingo <wingo@igalia.com>
 ;;; Copyright © 2015, 2016 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2016 Theodoros Foradis <theodoros.for@openmailbox.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -29,6 +30,7 @@
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system glib-or-gtk)
   #:use-module (guix build-system python)
+  #:use-module (gnu packages autotools)
   #:use-module (gnu packages gnupg)
   #:use-module (gnu packages gtk)
   #:use-module (gnu packages linux)
@@ -201,3 +203,39 @@ proposed for standardization.")
   (MTP), which allows media files to be transferred to and from many portable
 devices.")
     (license bsd-3)))
+
+(define-public hidapi
+  (package
+    (name "hidapi")
+    (version "0.8.0-rc1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://github.com/signal11/hidapi/archive/hidapi-"
+                                  version ".tar.gz"))
+              (sha256
+               (base32
+                "0qdgyj9rgb7n0nk3ghfswrhzzknxqn4ibn3wj8g4r828pw07451w"))))
+    (build-system gnu-build-system)
+    (arguments
+     '(#:phases
+       (modify-phases %standard-phases
+         (add-before 'configure 'bootstrap
+           (lambda _
+             (zero? (system* "autoreconf" "-vfi")))))))
+    (inputs
+     `(("libusb" ,libusb)
+       ("udev" ,eudev)))
+    (native-inputs
+     `(("autoconf" ,autoconf)
+       ("automake" ,automake)
+       ("libtool" ,libtool)
+       ("pkg-config" ,pkg-config)))
+    (home-page "http://www.signal11.us/oss/hidapi/")
+    (synopsis "HID API library")
+    (description
+     "HIDAPI is a library which allows an application to interface with USB and Bluetooth
+HID-Class devices.")
+    ;; HIDAPI can be used under one of three licenses.
+    (license (list gpl3
+                   bsd-3
+                   non-copyleft "file://LICENSE-orig.txt"))))
diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm
index d9189b12a0..673f2ce70e 100644
--- a/gnu/packages/linux.scm
+++ b/gnu/packages/linux.scm
@@ -71,6 +71,8 @@
   #:use-module (gnu packages texinfo)
   #:use-module (gnu packages tls)
   #:use-module (gnu packages xml)
+  #:use-module (gnu packages xdisorg)
+  #:use-module (gnu packages xorg)
   #:use-module (guix build-system cmake)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system python)
@@ -323,14 +325,14 @@ It has been modified to remove all non-free binary blobs.")
 (define %intel-compatible-systems '("x86_64-linux" "i686-linux"))
 
 (define-public linux-libre
-  (make-linux-libre "4.8.4"
-                    "06fb2b1y7w0ixq4savn3hddp326mmzmg3400dpr8lyg919bwck3x"
+  (make-linux-libre "4.8.5"
+                    "124sf2jvckn0afy1zfyaqgr1679qsx3fnylw1wpl7p5298hwyf9m"
                     %intel-compatible-systems
                     #:configuration-file kernel-config))
 
 (define-public linux-libre-4.4
-  (make-linux-libre "4.4.27"
-                    "07g0y8zbspw8d65386llcsnqlbv2s24dxvvbwm9kwm87rk3vin1r"
+  (make-linux-libre "4.4.28"
+                    "1yn74vci0bygn5bi9mcgx1zz8xw9m3jb6j260wqsgkv1hbksa2yp"
                     %intel-compatible-systems
                     #:configuration-file kernel-config))
 
@@ -341,8 +343,8 @@ It has been modified to remove all non-free binary blobs.")
                     #:configuration-file kernel-config))
 
 ;; Avoid rebuilding kernel variants when there is a minor version bump.
-(define %linux-libre-version "4.8.4")
-(define %linux-libre-hash "06fb2b1y7w0ixq4savn3hddp326mmzmg3400dpr8lyg919bwck3x")
+(define %linux-libre-version "4.8.5")
+(define %linux-libre-hash "124sf2jvckn0afy1zfyaqgr1679qsx3fnylw1wpl7p5298hwyf9m")
 
 (define-public linux-libre-arm-generic
   (make-linux-libre %linux-libre-version
@@ -3095,3 +3097,44 @@ interface that should be familiar to, and easily adopted by, application
 developers.")
     (home-page "https://github.com/seccomp/libseccomp")
     (license license:lgpl2.1)))
+
+(define-public radeontop
+  (package
+    (name "radeontop")
+    (version "0.9")
+    (home-page "https://github.com/clbr/radeontop/")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append home-page "/archive/v" version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "07fnimn6wwablmdjw0av11hk9a6xilbryh09izq4b2ic4b8md2p7"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:phases (modify-phases %standard-phases
+                  ;; getver.sh uses ‘git --describe’, isn't worth an extra git
+                  ;; dependency, and doesn't even work on release(!) tarballs.
+                  (add-after 'unpack 'report-correct-version
+                    (lambda _ (substitute* "getver.sh"
+                                (("ver=unknown")
+                                 (string-append "ver=" ,version)))))
+                  (delete 'configure))  ; no configure script
+       #:make-flags (list "CC=gcc"
+                          (string-append "PREFIX=" %output))
+       #:tests? #f))                    ; no tests
+    (native-inputs
+     `(("gnu-gettext" ,gnu-gettext)
+       ("pkg-config" ,pkg-config)))
+    (inputs
+     `(("libdrm" ,libdrm)
+       ("libpciaccess" ,libpciaccess)
+       ("ncurses" ,ncurses)))
+    (synopsis "Usage monitor for AMD Radeon graphics")
+    (description "RadeonTop monitors resource consumption on supported AMD
+Radeon Graphics Processing Units (GPUs), either in real time as bar graphs on
+a terminal or saved to a file for further processing.  It measures both the
+activity of the GPU as a whole, which is also accurate during OpenCL
+computations, as well as separate component statistics that are only meaningful
+under OpenGL graphics workloads.")
+    (license license:gpl3)))
diff --git a/gnu/packages/mail.scm b/gnu/packages/mail.scm
index e1b490e51d..1408e2e030 100644
--- a/gnu/packages/mail.scm
+++ b/gnu/packages/mail.scm
@@ -311,7 +311,7 @@ and corrections.  It is based on a Bayesian filter.")
 (define-public offlineimap
   (package
     (name "offlineimap")
-    (version "7.0.8")
+    (version "7.0.9")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/OfflineIMAP/offlineimap/"
@@ -319,7 +319,7 @@ and corrections.  It is based on a Bayesian filter.")
               (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                (base32
-                "0smxh5ag3cbn92kp49jq950j5m2pivs9kr04prpd1lw62hy7gnhr"))))
+                "04kapx0ddz7ccwhcjshkml2y916wcan3rl28mpmq25p4gywlkhxf"))))
     (build-system python-build-system)
     (native-inputs
      `(("asciidoc" ,asciidoc)
diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index 84b8395a4c..a3822887ae 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -1225,7 +1225,7 @@ arising after the discretization of partial differential equations.")
 (define-public mumps
   (package
     (name "mumps")
-    (version "5.0.1")
+    (version "5.0.2")
     (source
      (origin
        (method url-fetch)
@@ -1233,7 +1233,7 @@ arising after the discretization of partial differential equations.")
                            version ".tar.gz"))
        (sha256
         (base32
-         "1820jfp3mbl7n85765v5mp6p0gzqpgr4d2lrnhwj4gl7cwp5ndah"))
+         "0igyc1pfzxdhpbad3v3lb86ixkdbqa1a8gbs15b04r2294h2nabp"))
        (patches (search-patches "mumps-build-parallelism.patch"))))
     (build-system gnu-build-system)
     (inputs
@@ -1250,8 +1250,7 @@ arising after the discretization of partial differential equations.")
                   ,@%gnu-build-system-modules)
        #:phases
        (modify-phases %standard-phases
-         (replace
-          'configure
+         (replace 'configure
           (lambda* (#:key inputs #:allow-other-keys)
             (call-with-output-file "Makefile.inc"
               (lambda (port)
@@ -1312,15 +1311,13 @@ IORDERINGSC  = $(IPORD) $(IMETIS) $(ISCOTCH)"
                            `((,ptscotch
                               "-lptesmumps -lptscotch -lptscotcherr "
                               "-Dptscotch")))))))))
-         (replace
-          'build
+         (replace 'build
           ;; By default only the d-precision library is built.  Make with "all"
           ;; target so that all precision libraries and examples are built.
           (lambda _
             (zero? (system* "make" "all"
                             (format #f "-j~a" (parallel-job-count))))))
-         (replace
-          'check
+         (replace 'check
           ;; Run the simple test drivers, which read test input from stdin:
           ;; from the "real" input for the single- and double-precision
           ;; testers, and from the "cmplx" input for complex-precision
@@ -1343,15 +1340,15 @@ IORDERINGSC  = $(IPORD) $(IMETIS) $(ISCOTCH)"
                      (zero? (close-pipe tester)))))
                '("s" "d" "c" "z")
                '("real" "real" "cmplx" "cmplx")))))
-         (replace
-          'install
-          (lambda* (#:key outputs #:allow-other-keys)
-            (let ((out (assoc-ref outputs "out")))
-              (copy-recursively "lib" (string-append out "/lib"))
-              (copy-recursively "include" (string-append out "/include"))
-              (when (file-exists? "libseq/libmpiseq.a")
-                (copy-file "libseq/libmpiseq.a"
-                           (string-append out "/lib/libmpiseq.a")))))))))
+         (replace 'install
+           (lambda* (#:key outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (libdir (string-append out "/lib")))
+               (copy-recursively "lib" libdir)
+               (copy-recursively "include" (string-append out "/include"))
+               (when (file-exists? "libseq/libmpiseq.a")
+                 (install-file "libseq/libmpiseq.a" libdir))
+               #t))))))
     (home-page "http://mumps.enseeiht.fr")
     (synopsis "Multifrontal sparse direct solver")
     (description
diff --git a/gnu/packages/music.scm b/gnu/packages/music.scm
index e0708a7008..9ad7bab335 100644
--- a/gnu/packages/music.scm
+++ b/gnu/packages/music.scm
@@ -1772,9 +1772,9 @@ MusicBrainz database.")
 (define-public python2-musicbrainzngs
   (package-with-python2 python-musicbrainzngs))
 
-(define-public python-pyechonest
+(define-public python2-pyechonest
   (package
-    (name "python-pyechonest")
+    (name "python2-pyechonest")
     (version "9.0.0")
     (source (origin
               (method url-fetch)
@@ -1783,6 +1783,11 @@ MusicBrainz database.")
                (base32
                 "1584nira3rkiman9dm81kdshihmkj21s8navndz2l8spnjwb790x"))))
     (build-system python-build-system)
+    (arguments
+     `(;; Python 3 is not supported:
+       ;; https://github.com/echonest/pyechonest/issues/42
+       #:python ,python-2))
+    (native-inputs `(("python2-setuptools" ,python2-setuptools)))
     (home-page "https://github.com/echonest/pyechonest")
     (synopsis "Python interface to The Echo Nest APIs")
     (description "Pyechonest is a Python library for the Echo Nest API.  With
@@ -1799,13 +1804,7 @@ hotttnesss, audio_summary, or tracks.
 about the track including key, duration, mode, tempo, time signature along with
 detailed track info including timbre, pitch, rhythm and loudness information.
 @end enumerate\n")
-    (license license:bsd-3)
-    (properties `((python2-variant . ,(delay python2-pyechonest))))))
-
-(define-public python2-pyechonest
-  (package (inherit (package-with-python2
-                     (strip-python2-variant python-pyechonest)))
-    (native-inputs `(("python2-setuptools" ,python2-setuptools)))))
+    (license license:bsd-3)))
 
 (define-public python-pylast
   (package
diff --git a/gnu/packages/patches/openocd-nrf52.patch b/gnu/packages/patches/openocd-nrf52.patch
new file mode 100644
index 0000000000..792575df78
--- /dev/null
+++ b/gnu/packages/patches/openocd-nrf52.patch
@@ -0,0 +1,843 @@
+This patch adds support for nRF52 series devices.  It is patchset 7 from
+<http://openocd.zylin.com/#/c/3511/>, which has been tested, but not
+merged yet in master.
+
+From: Michael Dietz <mjdietzx@gmail.com>
+Date: Mon, 30 May 2016 12:50:44 +0000 (-0700)
+Subject: Added support for nRF52 Series Devices.
+X-Git-Url: http://openocd.zylin.com/gitweb?p=openocd.git;a=commitdiff_plain;h=9ba15633e221d9d72e320372ba8f49d3f30d4bce
+
+Added support for nRF52 Series Devices.
+
+Both nrf52.c and nrf52.cfg are based off of previous nRF51 files.
+- Some possible race conditions with NVMC have been fixed in nRF52.c
+- Removed nrf51_get_probed_chip_if_halted() as the core does not have to be halted to perform operations where it is called.
+- Only registers that are needed by openOCD are defined, some registers in nRF51 don't exist in nRF52 and are removed.
+- Some all around cleanup has been done.
+- The protection mechanism is completely different on nRF52 and this has not been implemented yet - just prints a warning and returns for now.
+
+Change-Id: I4dd42c86f33f450709bb981806c2655f04aa6201
+Signed-off-by: Michael Dietz <mjdietzx@gmail.com>
+---
+
+diff --git a/src/flash/nor/Makefile.am b/src/flash/nor/Makefile.am
+index c167e8f..b6a2be3 100644
+--- a/src/flash/nor/Makefile.am
++++ b/src/flash/nor/Makefile.am
+@@ -37,6 +37,7 @@ NOR_DRIVERS = \
+ 	niietcm4.c \
+ 	non_cfi.c \
+ 	nrf51.c \
++	nrf52.c \
+ 	numicro.c \
+ 	ocl.c \
+ 	pic32mx.c \
+diff --git a/src/flash/nor/drivers.c b/src/flash/nor/drivers.c
+index 56a5cb2..3e071bd 100644
+--- a/src/flash/nor/drivers.c
++++ b/src/flash/nor/drivers.c
+@@ -48,6 +48,7 @@ extern struct flash_driver mdr_flash;
+ extern struct flash_driver mrvlqspi_flash;
+ extern struct flash_driver niietcm4_flash;
+ extern struct flash_driver nrf51_flash;
++extern struct flash_driver nrf52_flash;
+ extern struct flash_driver numicro_flash;
+ extern struct flash_driver ocl_flash;
+ extern struct flash_driver pic32mx_flash;
+@@ -100,6 +101,7 @@ static struct flash_driver *flash_drivers[] = {
+ 	&mrvlqspi_flash,
+ 	&niietcm4_flash,
+ 	&nrf51_flash,
++	&nrf52_flash,
+ 	&numicro_flash,
+ 	&ocl_flash,
+ 	&pic32mx_flash,
+diff --git a/src/flash/nor/nrf52.c b/src/flash/nor/nrf52.c
+new file mode 100644
+index 0000000..7f2bd35
+--- /dev/null
++++ b/src/flash/nor/nrf52.c
+@@ -0,0 +1,733 @@
++/***************************************************************************
++ *   Copyright (C) 2013 Synapse Product Development                        *
++ *   Andrey Smirnov <andrew.smironv@gmail.com>                             *
++ *   Angus Gratton <gus@projectgus.com>                                    *
++ *   Erdem U. Altunyurt <spamjunkeater@gmail.com>                          *
++ *                                                                         *
++ *   This program is free software; you can redistribute it and/or modify  *
++ *   it under the terms of the GNU General Public License as published by  *
++ *   the Free Software Foundation; either version 2 of the License, or     *
++ *   (at your option) any later version.                                   *
++ *                                                                         *
++ *   This program is distributed in the hope that it will be useful,       *
++ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
++ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
++ *   GNU General Public License for more details.                          *
++ *                                                                         *
++ *   You should have received a copy of the GNU General Public License     *
++ *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
++ ***************************************************************************/
++
++#ifdef HAVE_CONFIG_H
++#include "config.h"
++#endif
++
++#include <stdlib.h>
++
++#include "imp.h"
++#include <target/algorithm.h>
++#include <target/armv7m.h>
++#include <helper/types.h>
++
++/* nRF52 Register addresses used by openOCD. */
++#define NRF52_FLASH_BASE_ADDR        (0x0)
++
++#define NRF52_FICR_BASE_ADDR         (0x10000000)
++#define NRF52_FICR_CODEPAGESIZE_ADDR (NRF52_FICR_BASE_ADDR | 0x010)
++#define NRF52_FICR_CODESIZE_ADDR     (NRF52_FICR_BASE_ADDR | 0x014)
++
++#define NRF52_UICR_BASE_ADDR         (0x10001000)
++
++#define NRF52_NVMC_BASE_ADDR         (0x4001E000)
++#define NRF52_NVMC_READY_ADDR        (NRF52_NVMC_BASE_ADDR | 0x400)
++#define NRF52_NVMC_CONFIG_ADDR       (NRF52_NVMC_BASE_ADDR | 0x504)
++#define NRF52_NVMC_ERASEPAGE_ADDR    (NRF52_NVMC_BASE_ADDR | 0x508)
++#define NRF52_NVMC_ERASEALL_ADDR     (NRF52_NVMC_BASE_ADDR | 0x50C)
++#define NRF52_NVMC_ERASEUICR_ADDR    (NRF52_NVMC_BASE_ADDR | 0x514)
++
++/* nRF52 bit fields. */
++enum nrf52_nvmc_config_bits {
++	NRF52_NVMC_CONFIG_REN = 0x0,
++	NRF52_NVMC_CONFIG_WEN = 0x01,
++	NRF52_NVMC_CONFIG_EEN = 0x02
++};
++
++enum nrf52_nvmc_ready_bits {
++	NRF52_NVMC_BUSY  = 0x0,
++	NRF52_NVMC_READY = 0x01
++};
++
++/* nRF52 state information. */
++struct nrf52_info {
++	uint32_t code_page_size; /* Size of FLASH page in bytes. */
++	uint32_t code_memory_size; /* Size of Code FLASH region in bytes. */
++
++	struct {
++		bool probed;
++		int (*write) (struct flash_bank *bank,
++				struct nrf52_info *chip,
++				const uint8_t *buffer, uint32_t offset, uint32_t count);
++	} bank[2]; /* There are two regions in nRF52 FLASH - Code and UICR. */
++	struct target *target;
++};
++
++static int nrf52_protect_check(struct flash_bank *bank);
++
++static int nrf52_probe(struct flash_bank *bank)
++{
++	int res;
++	struct nrf52_info *chip = bank->driver_priv;
++	assert(chip != NULL);
++
++	res = target_read_u32(chip->target,
++						NRF52_FICR_CODEPAGESIZE_ADDR,
++						&chip->code_page_size);
++	if (res != ERROR_OK) {
++		LOG_ERROR("Couldn't read code page size");
++		return res;
++	}
++
++	res = target_read_u32(chip->target,
++						NRF52_FICR_CODESIZE_ADDR,
++						&chip->code_memory_size);
++	if (res != ERROR_OK) {
++		LOG_ERROR("Couldn't read code memory size");
++		return res;
++	}
++
++	chip->code_memory_size = chip->code_memory_size * chip->code_page_size;
++
++	if (bank->base == NRF52_FLASH_BASE_ADDR) {
++		bank->size = chip->code_memory_size;
++		bank->num_sectors = bank->size / chip->code_page_size;
++		bank->sectors = calloc(bank->num_sectors,
++							sizeof((bank->sectors)[0]));
++		if (!bank->sectors)
++			return ERROR_FLASH_BANK_NOT_PROBED;
++
++		/* Fill out the sector information: All nRF51 sectors are the same size. */
++		for (int i = 0; i < bank->num_sectors; i++) {
++			bank->sectors[i].size = chip->code_page_size;
++			bank->sectors[i].offset	= i * chip->code_page_size;
++
++			/* Mark as unknown. */
++			bank->sectors[i].is_erased = -1;
++			bank->sectors[i].is_protected = -1;
++		}
++
++		nrf52_protect_check(bank);
++
++		chip->bank[0].probed = true;
++	} else { /* This is the UICR bank. */
++		bank->size = chip->code_page_size;
++		bank->num_sectors = 1;
++		bank->sectors = calloc(bank->num_sectors,
++							sizeof((bank->sectors)[0]));
++		if (!bank->sectors)
++			return ERROR_FLASH_BANK_NOT_PROBED;
++
++		bank->sectors[0].size = bank->size;
++		bank->sectors[0].offset	= 0;
++
++		bank->sectors[0].is_erased = -1;
++		bank->sectors[0].is_protected = -1;
++
++		chip->bank[1].probed = true;
++	}
++
++	return ERROR_OK;
++}
++
++static int nrf52_bank_is_probed(struct flash_bank *bank)
++{
++	struct nrf52_info *chip = bank->driver_priv;
++	assert(chip != NULL);
++
++	return chip->bank[bank->bank_number].probed;
++}
++
++static int nrf52_auto_probe(struct flash_bank *bank)
++{
++	if (!nrf52_bank_is_probed(bank))
++		return nrf52_probe(bank);
++	else
++		return ERROR_OK;
++}
++
++static int nrf52_wait_for_nvmc(struct nrf52_info *chip)
++{
++	int res;
++	uint32_t ready;
++	int timeout = 100;
++
++	do {
++		res = target_read_u32(chip->target, NRF52_NVMC_READY_ADDR, &ready);
++		if (res != ERROR_OK) {
++			LOG_ERROR("Couldn't read NVMC_READY register");
++			return res;
++		}
++
++		if (ready == NRF52_NVMC_READY)
++			return ERROR_OK;
++
++		alive_sleep(1);
++	} while (timeout--);
++
++	LOG_DEBUG("Timed out waiting for the NVMC to be ready");
++	return ERROR_FLASH_BUSY;
++}
++
++static int nrf52_nvmc_erase_enable(struct nrf52_info *chip)
++{
++	int res;
++
++	res = nrf52_wait_for_nvmc(chip);
++	if (res != ERROR_OK)
++		return res;
++
++	res = target_write_u32(chip->target,
++						NRF52_NVMC_CONFIG_ADDR,
++						NRF52_NVMC_CONFIG_EEN);
++	if (res != ERROR_OK) {
++		LOG_ERROR("Failed to configure the NVMC for erasing");
++		return res;
++	}
++
++	return res;
++}
++
++static int nrf52_nvmc_write_enable(struct nrf52_info *chip)
++{
++	int res;
++
++	res = nrf52_wait_for_nvmc(chip);
++	if (res != ERROR_OK)
++		return res;
++
++	res = target_write_u32(chip->target,
++						NRF52_NVMC_CONFIG_ADDR,
++						NRF52_NVMC_CONFIG_WEN);
++	if (res != ERROR_OK) {
++		LOG_ERROR("Failed to configure the NVMC for writing");
++		return res;
++	}
++
++	return res;
++}
++
++static int nrf52_nvmc_read_only(struct nrf52_info *chip)
++{
++	int res;
++
++	res = nrf52_wait_for_nvmc(chip);
++	if (res != ERROR_OK)
++		return res;
++
++	res = target_write_u32(chip->target,
++						NRF52_NVMC_CONFIG_ADDR,
++						NRF52_NVMC_CONFIG_REN);
++	if (res != ERROR_OK) {
++		LOG_ERROR("Failed to configure the NVMC for read-only");
++		return res;
++	}
++
++	return res;
++}
++
++static int nrf52_nvmc_generic_erase(struct nrf52_info *chip,
++								uint32_t erase_register,
++								uint32_t erase_value)
++{
++	int res;
++
++	res = nrf52_nvmc_erase_enable(chip);
++	if (res != ERROR_OK)
++		return res;
++
++	res = target_write_u32(chip->target,
++						erase_register,
++						erase_value);
++	if (res != ERROR_OK)
++		LOG_ERROR("Failed to write NVMC erase register");
++
++	return nrf52_nvmc_read_only(chip);
++}
++
++static int nrf52_protect_check(struct flash_bank *bank)
++{
++	LOG_WARNING("nrf52_protect_check() is not implemented for nRF52 series devices yet");
++	return ERROR_OK;
++}
++
++static int nrf52_protect(struct flash_bank *bank, int set, int first, int last)
++{
++	LOG_WARNING("nrf52_protect() is not implemented for nRF52 series devices yet");
++	return ERROR_OK;
++}
++
++static struct flash_sector *nrf52_find_sector_by_address(struct flash_bank *bank, uint32_t address)
++{
++	struct nrf52_info *chip = bank->driver_priv;
++	assert(chip != NULL);
++
++	for (int i = 0; i < bank->num_sectors; i++)
++		if (bank->sectors[i].offset <= address &&
++			address < (bank->sectors[i].offset + chip->code_page_size)) {
++			return &bank->sectors[i];
++		}
++
++	return NULL;
++}
++
++static int nrf52_erase_all(struct nrf52_info *chip)
++{
++	LOG_DEBUG("Erasing all non-volatile memory");
++	return nrf52_nvmc_generic_erase(chip,
++								NRF52_NVMC_ERASEALL_ADDR,
++								0x01);
++}
++
++static int nrf52_erase_page(struct flash_bank *bank,
++							struct nrf52_info *chip,
++							struct flash_sector *sector)
++{
++	int res;
++
++	LOG_DEBUG("Erasing page at 0x%"PRIx32, sector->offset);
++	if (sector->is_protected == 1) {
++		LOG_ERROR("Cannot erase protected sector at 0x%" PRIx32, sector->offset);
++		return ERROR_FAIL;
++	}
++
++	if (bank->base == NRF52_UICR_BASE_ADDR) {
++		res = nrf52_nvmc_generic_erase(chip,
++									NRF52_NVMC_ERASEUICR_ADDR,
++									0x00000001);
++	} else {
++		res = nrf52_nvmc_generic_erase(chip,
++									NRF52_NVMC_ERASEPAGE_ADDR,
++									sector->offset);
++	}
++
++	if (res == ERROR_OK)
++		sector->is_erased = 1;
++	return res;
++}
++
++static const uint8_t nrf52_flash_write_code[] = {
++	/* See contrib/loaders/flash/cortex-m0.S */
++	/* <wait_fifo>: */
++	0x0d, 0x68,		/* ldr	r5,	[r1,	#0] */
++	0x00, 0x2d,		/* cmp	r5,	#0 */
++	0x0b, 0xd0,		/* beq.n	1e <exit> */
++	0x4c, 0x68,		/* ldr	r4,	[r1,	#4] */
++	0xac, 0x42,		/* cmp	r4,	r5 */
++	0xf9, 0xd0,		/* beq.n	0 <wait_fifo> */
++	0x20, 0xcc,		/* ldmia	r4!,	{r5} */
++	0x20, 0xc3,		/* stmia	r3!,	{r5} */
++	0x94, 0x42,		/* cmp	r4,	r2 */
++	0x01, 0xd3,		/* bcc.n	18 <no_wrap> */
++	0x0c, 0x46,		/* mov	r4,	r1 */
++	0x08, 0x34,		/* adds	r4,	#8 */
++	/* <no_wrap>: */
++	0x4c, 0x60,		/* str	r4, [r1,	#4] */
++	0x04, 0x38,		/* subs	r0, #4 */
++	0xf0, 0xd1,		/* bne.n	0 <wait_fifo> */
++	/* <exit>: */
++	0x00, 0xbe		/* bkpt	0x0000 */
++};
++
++
++/* Start a low level flash write for the specified region */
++static int nrf52_ll_flash_write(struct nrf52_info *chip, uint32_t offset, const uint8_t *buffer, uint32_t bytes)
++{
++	struct target *target = chip->target;
++	uint32_t buffer_size = 8192;
++	struct working_area *write_algorithm;
++	struct working_area *source;
++	uint32_t address = NRF52_FLASH_BASE_ADDR + offset;
++	struct reg_param reg_params[4];
++	struct armv7m_algorithm armv7m_info;
++	int retval = ERROR_OK;
++
++	LOG_DEBUG("Writing buffer to flash offset=0x%"PRIx32" bytes=0x%"PRIx32, offset, bytes);
++	assert(bytes % 4 == 0);
++
++	/* allocate working area with flash programming code */
++	if (target_alloc_working_area(target, sizeof(nrf52_flash_write_code),
++			&write_algorithm) != ERROR_OK) {
++		LOG_WARNING("no working area available, falling back to slow memory writes");
++
++		for (; bytes > 0; bytes -= 4) {
++			retval = target_write_memory(chip->target,
++										offset, 4, 1, buffer);
++			if (retval != ERROR_OK)
++				return retval;
++
++			retval = nrf52_wait_for_nvmc(chip);
++			if (retval != ERROR_OK)
++				return retval;
++
++			offset += 4;
++			buffer += 4;
++		}
++
++		return ERROR_OK;
++	}
++
++	LOG_WARNING("using fast async flash loader. This is currently supported");
++	LOG_WARNING("only with ST-Link and CMSIS-DAP. If you have issues, add");
++	LOG_WARNING("\"set WORKAREASIZE 0\" before sourcing nrf52.cfg to disable it");
++
++	retval = target_write_buffer(target, write_algorithm->address,
++				sizeof(nrf52_flash_write_code),
++				nrf52_flash_write_code);
++	if (retval != ERROR_OK)
++		return retval;
++
++	/* memory buffer */
++	while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK) {
++		buffer_size /= 2;
++		buffer_size &= ~3UL; /* Make sure it's 4 byte aligned */
++		if (buffer_size <= 256) {
++			/* free working area, write algorithm already allocated */
++			target_free_working_area(target, write_algorithm);
++
++			LOG_WARNING("No large enough working area available, can't do block memory writes");
++			return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
++		}
++	}
++
++	armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
++	armv7m_info.core_mode = ARM_MODE_THREAD;
++
++	init_reg_param(&reg_params[0], "r0", 32, PARAM_IN_OUT);	/* byte count */
++	init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);	/* buffer start */
++	init_reg_param(&reg_params[2], "r2", 32, PARAM_OUT);	/* buffer end */
++	init_reg_param(&reg_params[3], "r3", 32, PARAM_IN_OUT);	/* target address */
++
++	buf_set_u32(reg_params[0].value, 0, 32, bytes);
++	buf_set_u32(reg_params[1].value, 0, 32, source->address);
++	buf_set_u32(reg_params[2].value, 0, 32, source->address + source->size);
++	buf_set_u32(reg_params[3].value, 0, 32, address);
++
++	retval = target_run_flash_async_algorithm(target, buffer, bytes/4, 4,
++			0, NULL,
++			4, reg_params,
++			source->address, source->size,
++			write_algorithm->address, 0,
++			&armv7m_info);
++
++	target_free_working_area(target, source);
++	target_free_working_area(target, write_algorithm);
++
++	destroy_reg_param(&reg_params[0]);
++	destroy_reg_param(&reg_params[1]);
++	destroy_reg_param(&reg_params[2]);
++	destroy_reg_param(&reg_params[3]);
++
++	return retval;
++}
++
++/* Check and erase flash sectors in specified range, then start a low level page write.
++   start/end must be sector aligned.
++*/
++static int nrf52_write_pages(struct flash_bank *bank, uint32_t start, uint32_t end, const uint8_t *buffer)
++{
++	int res;
++	uint32_t offset;
++	struct flash_sector *sector;
++	struct nrf52_info *chip = bank->driver_priv;
++	assert(chip != NULL);
++
++	assert(start % chip->code_page_size == 0);
++	assert(end % chip->code_page_size == 0);
++
++	/* Erase all sectors */
++	for (offset = start; offset < end; offset += chip->code_page_size) {
++		sector = nrf52_find_sector_by_address(bank, offset);
++
++		if (sector == NULL) {
++			LOG_ERROR("Invalid sector @ 0x%08"PRIx32, offset);
++			return ERROR_FLASH_SECTOR_INVALID;
++		}
++
++		if (sector->is_protected == 1) {
++			LOG_ERROR("Can't erase protected sector @ 0x%08"PRIx32, offset);
++			return ERROR_FAIL;
++		}
++
++		if (sector->is_erased != 1) {	/* 1 = erased, 0= not erased, -1 = unknown */
++			res = nrf52_erase_page(bank, chip, sector);
++			if (res != ERROR_OK) {
++				LOG_ERROR("Failed to erase sector @ 0x%08"PRIx32, sector->offset);
++				return res;
++			}
++		}
++		sector->is_erased = 1;
++	}
++
++	res = nrf52_nvmc_write_enable(chip);
++	if (res != ERROR_OK)
++		return res;
++
++	res = nrf52_ll_flash_write(chip, start, buffer, (end - start));
++	if (res != ERROR_OK) {
++		LOG_ERROR("Failed to write FLASH");
++		nrf52_nvmc_read_only(chip);
++		return res;
++	}
++
++	return nrf52_nvmc_read_only(chip);
++}
++
++static int nrf52_erase(struct flash_bank *bank, int first, int last)
++{
++	int res = ERROR_OK;
++	struct nrf52_info *chip = bank->driver_priv;
++	assert(chip != NULL);
++
++	/* For each sector to be erased */
++	for (int s = first; s <= last && res == ERROR_OK; s++)
++		res = nrf52_erase_page(bank, chip, &bank->sectors[s]);
++
++	return res;
++}
++
++static int nrf52_code_flash_write(struct flash_bank *bank,
++								struct nrf52_info *chip,
++								const uint8_t *buffer, uint32_t offset, uint32_t count)
++{
++	int res;
++	/* Need to perform reads to fill any gaps we need to preserve in the first page,
++	   before the start of buffer, or in the last page, after the end of buffer */
++	uint32_t first_page = offset / chip->code_page_size;
++	uint32_t last_page = DIV_ROUND_UP(offset+count, chip->code_page_size);
++
++	uint32_t first_page_offset = first_page * chip->code_page_size;
++	uint32_t last_page_offset = last_page * chip->code_page_size;
++
++	LOG_DEBUG("Padding write from 0x%08"PRIx32"-0x%08"PRIx32" as 0x%08"PRIx32"-0x%08"PRIx32,
++			offset, offset+count, first_page_offset, last_page_offset);
++
++	uint32_t page_cnt = last_page - first_page;
++	uint8_t buffer_to_flash[page_cnt * chip->code_page_size];
++
++	/* Fill in any space between start of first page and start of buffer */
++	uint32_t pre = offset - first_page_offset;
++	if (pre > 0) {
++		res = target_read_memory(bank->target, first_page_offset, 1, pre, buffer_to_flash);
++		if (res != ERROR_OK)
++			return res;
++	}
++
++	/* Fill in main contents of buffer */
++	memcpy(buffer_to_flash + pre, buffer, count);
++
++	/* Fill in any space between end of buffer and end of last page */
++	uint32_t post = last_page_offset - (offset + count);
++	if (post > 0) {
++		/* Retrieve the full row contents from Flash */
++		res = target_read_memory(bank->target, offset + count, 1, post, buffer_to_flash + pre + count);
++		if (res != ERROR_OK)
++			return res;
++	}
++
++	return nrf52_write_pages(bank, first_page_offset, last_page_offset, buffer_to_flash);
++}
++
++static int nrf52_uicr_flash_write(struct flash_bank *bank,
++								struct nrf52_info *chip,
++								const uint8_t *buffer, uint32_t offset, uint32_t count)
++{
++	int res;
++	uint32_t nrf52_uicr_size = chip->code_page_size;
++	uint8_t uicr[nrf52_uicr_size];
++	struct flash_sector *sector = &bank->sectors[0];
++
++	if ((offset + count) > nrf52_uicr_size)
++		return ERROR_FAIL;
++
++	res = target_read_memory(bank->target, NRF52_UICR_BASE_ADDR, 1, nrf52_uicr_size, uicr);
++
++	if (res != ERROR_OK)
++		return res;
++
++	if (sector->is_erased != 1) {
++		res = nrf52_erase_page(bank, chip, sector);
++		if (res != ERROR_OK)
++			return res;
++	}
++
++	memcpy(&uicr[offset], buffer, count);
++
++	res = nrf52_nvmc_write_enable(chip);
++	if (res != ERROR_OK)
++		return res;
++
++	res = nrf52_ll_flash_write(chip, NRF52_UICR_BASE_ADDR, uicr, nrf52_uicr_size);
++	if (res != ERROR_OK) {
++		nrf52_nvmc_read_only(chip);
++		return res;
++	}
++
++	return nrf52_nvmc_read_only(chip);
++}
++
++
++static int nrf52_write(struct flash_bank *bank, const uint8_t *buffer,
++					uint32_t offset, uint32_t count)
++{
++	struct nrf52_info *chip = bank->driver_priv;
++	assert(chip != NULL);
++
++	return chip->bank[bank->bank_number].write(bank, chip, buffer, offset, count);
++}
++
++
++FLASH_BANK_COMMAND_HANDLER(nrf52_flash_bank_command)
++{
++	static struct nrf52_info *chip;
++
++	assert(bank != NULL);
++
++	switch (bank->base) {
++	case NRF52_FLASH_BASE_ADDR:
++		bank->bank_number = 0;
++		break;
++	case NRF52_UICR_BASE_ADDR:
++		bank->bank_number = 1;
++		break;
++	default:
++		LOG_ERROR("Invalid bank address 0x%08" PRIx32, bank->base);
++		return ERROR_FAIL;
++	}
++
++	if (!chip) {
++		/* Create a new chip */
++		chip = calloc(1, sizeof(*chip));
++		assert(chip != NULL);
++
++		chip->target = bank->target;
++	}
++
++	switch (bank->base) {
++	case NRF52_FLASH_BASE_ADDR:
++		chip->bank[bank->bank_number].write = nrf52_code_flash_write;
++		break;
++	case NRF52_UICR_BASE_ADDR:
++		chip->bank[bank->bank_number].write = nrf52_uicr_flash_write;
++		break;
++	}
++
++	chip->bank[bank->bank_number].probed = false;
++	bank->driver_priv = chip;
++
++	return ERROR_OK;
++}
++
++COMMAND_HANDLER(nrf52_handle_mass_erase_command)
++{
++	int res;
++	struct flash_bank *bank = NULL;
++	struct target *target = get_current_target(CMD_CTX);
++
++	res = get_flash_bank_by_addr(target, NRF52_FLASH_BASE_ADDR, true, &bank);
++	if (res != ERROR_OK)
++		return res;
++
++	assert(bank != NULL);
++
++	struct nrf52_info *chip = bank->driver_priv;
++	assert(chip != NULL);
++
++	res = nrf52_erase_all(chip);
++	if (res != ERROR_OK) {
++		LOG_ERROR("Failed to erase the chip");
++		nrf52_protect_check(bank);
++		return res;
++	}
++
++	for (int i = 0; i < bank->num_sectors; i++)
++		bank->sectors[i].is_erased = 1;
++
++	res = nrf52_protect_check(bank);
++	if (res != ERROR_OK) {
++		LOG_ERROR("Failed to check chip's write protection");
++		return res;
++	}
++
++	res = get_flash_bank_by_addr(target, NRF52_UICR_BASE_ADDR, true, &bank);
++	if (res != ERROR_OK)
++		return res;
++
++	bank->sectors[0].is_erased = 1;
++
++	return ERROR_OK;
++}
++
++static int nrf52_info(struct flash_bank *bank, char *buf, int buf_size)
++{
++	int res;
++	uint32_t ficr[2];
++	struct nrf52_info *chip = bank->driver_priv;
++	assert(chip != NULL);
++
++	res = target_read_u32(chip->target, NRF52_FICR_CODEPAGESIZE_ADDR, &ficr[0]);
++		if (res != ERROR_OK) {
++			LOG_ERROR("Couldn't read NVMC_READY register");
++			return res;
++		}
++
++	res = target_read_u32(chip->target, NRF52_FICR_CODESIZE_ADDR, &ficr[1]);
++		if (res != ERROR_OK) {
++			LOG_ERROR("Couldn't read NVMC_READY register");
++			return res;
++		}
++
++	snprintf(buf, buf_size,
++			"\n--------nRF52 Series Device--------\n\n"
++			"\n[factory information control block]\n"
++			"code page size: %"PRIu32"B\n"
++			"code memory size: %"PRIu32"kB\n",
++			ficr[0],
++			(ficr[1] * ficr[0]) / 1024);
++
++	return ERROR_OK;
++}
++
++static const struct command_registration nrf52_exec_command_handlers[] = {
++	{
++		.name		= "mass_erase",
++		.handler	= nrf52_handle_mass_erase_command,
++		.mode		= COMMAND_EXEC,
++		.help		= "Erase all flash contents of the chip.",
++	},
++	COMMAND_REGISTRATION_DONE
++};
++
++static const struct command_registration nrf52_command_handlers[] = {
++	{
++		.name	= "nrf52",
++		.mode	= COMMAND_ANY,
++		.help	= "nrf52 flash command group",
++		.usage	= "",
++		.chain	= nrf52_exec_command_handlers,
++	},
++	COMMAND_REGISTRATION_DONE
++};
++
++struct flash_driver nrf52_flash = {
++	.name			= "nrf52",
++	.commands		= nrf52_command_handlers,
++	.flash_bank_command	= nrf52_flash_bank_command,
++	.info			= nrf52_info,
++	.erase			= nrf52_erase,
++	.protect		= nrf52_protect,
++	.write			= nrf52_write,
++	.read			= default_flash_read,
++	.probe			= nrf52_probe,
++	.auto_probe		= nrf52_auto_probe,
++	.erase_check	= default_flash_blank_check,
++	.protect_check	= nrf52_protect_check,
++};
+diff --git a/tcl/target/nrf52.cfg b/tcl/target/nrf52.cfg
+index c1cbf1a..a2567ff 100644
+--- a/tcl/target/nrf52.cfg
++++ b/tcl/target/nrf52.cfg
+@@ -5,15 +5,22 @@
+ source [find target/swj-dp.tcl]
+ 
+ if { [info exists CHIPNAME] } {
+-	set _CHIPNAME $CHIPNAME
++   set _CHIPNAME $CHIPNAME
+ } else {
+-	set _CHIPNAME nrf52
++   set _CHIPNAME nrf52
++}
++
++# Work-area is a space in RAM used for flash programming, by default use 16kB.
++if { [info exists WORKAREASIZE] } {
++   set _WORKAREASIZE $WORKAREASIZE
++} else {
++   set _WORKAREASIZE 0x4000
+ }
+ 
+ if { [info exists CPUTAPID] } {
+-	set _CPUTAPID $CPUTAPID
++   set _CPUTAPID $CPUTAPID
+ } else {
+-	set _CPUTAPID 0x2ba01477
++   set _CPUTAPID 0x2ba01477
+ }
+ 
+ swj_newdap $_CHIPNAME cpu -expected-id $_CPUTAPID
+@@ -21,8 +28,15 @@ swj_newdap $_CHIPNAME cpu -expected-id $_CPUTAPID
+ set _TARGETNAME $_CHIPNAME.cpu
+ target create $_TARGETNAME cortex_m -chain-position $_TARGETNAME
+ 
+-adapter_khz 10000
++$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
+ 
+-if { ![using_hla] } {
+-	cortex_m reset_config sysresetreq
++if {![using_hla]} {
++   cortex_m reset_config sysresetreq
+ }
++
++flash bank $_CHIPNAME.flash nrf52 0x00000000 0 1 1 $_TARGETNAME
++flash bank $_CHIPNAME.uicr nrf52 0x10001000 0 1 1 $_TARGETNAME
++
++adapter_khz 1000
++
++$_TARGETNAME configure -event reset-end {}
diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm
index 25fcfa379e..9dde9d3952 100644
--- a/gnu/packages/python.scm
+++ b/gnu/packages/python.scm
@@ -29,6 +29,7 @@
 ;;; Copyright © 2016 Marius Bakke <mbakke@fastmail.com>
 ;;; Copyright © 2016 Stefan Reichoer <stefan@xsteve.at>
 ;;; Copyright © 2016 Dylan Jeffers <sapientech@sapientech@openmailbox.org>
+;;; Copyright © 2016 Alex Vong <alexvong1995@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -3172,6 +3173,30 @@ writing C extensions for Python as easy as Python itself.")
     (inputs
      `(("python-2" ,python-2))))) ; this is not automatically changed
 
+;; The RPython toolchain currently does not support Python 3.
+(define-public python2-rpython
+  (package
+    (name "python2-rpython")
+    (version "0.1.4")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "rpython" version))
+       (sha256
+        (base32
+         "07pps06fq4c4wmi5ii0sgh9zgwniz5y7frqhm28g3a154l163fxc"))))
+    (build-system python-build-system)
+    (arguments `(#:python ,python-2))
+    (native-inputs
+     `(("python2-pytest" ,python2-pytest) ; needed for running tests
+       ("python2-setuptools" ,python2-setuptools)))
+    (home-page "https://rpython.readthedocs.org")
+    (synopsis "Framework for implementing interpreters and virtual machines")
+    (description "RPython is a translation and support framework for
+producing implementations of dynamic languages, emphasizing a clean separation
+between language specification and implementation aspects.")
+    (license license:expat)))
+
 ;; This version of numpy is missing the documentation and is only used to
 ;; build matplotlib which is required to build numpy's documentation.
 (define python-numpy-bootstrap
@@ -5258,30 +5283,28 @@ connection to each user.")
 (define-public python-waf
   (package
     (name "python-waf")
-    (version "1.9.1")
+    (version "1.9.5")
     (source (origin
               (method url-fetch)
-              (uri (string-append "https://waf.io/"
+              (uri (string-append "http://waf.io/"
                                   "waf-" version ".tar.bz2"))
               (sha256
                (base32
-                "1nc4qaqx2vsanlpp9mcwvf91xjqpkvcc6fcxd5sb4fwvaxamw5v6"))))
+                "1sl3ipi2czds57rlzjnpdzqa0skx8asfvmh3qmibpvdwf15rpppg"))))
     (build-system python-build-system)
     (arguments
      '(#:phases
        (modify-phases %standard-phases
          (replace 'build
-                  (lambda _
-                    (zero? (begin
-                             (system* "python" "waf-light" "configure")
-                             (system* "python" "waf-light" "build")))))
+           (lambda _
+             (zero? (system* "python" "waf-light" "configure" "build"))))
          (replace 'check
-                  (lambda _
-                    (zero? (system* "python" "waf" "--version"))))
+           (lambda _
+             (zero? (system* "python" "waf" "--version"))))
          (replace 'install
-                  (lambda _
-                    (copy-file "waf" %output))))))
-    (home-page "https://waf.io/")
+           (lambda _
+             (copy-file "waf" %output))))))
+    (home-page "http://waf.io/")
     (synopsis "Python-based build system")
     (description
      "Waf is a Python-based framework for configuring, compiling and installing
@@ -9652,7 +9675,9 @@ focus on event-based network programming and multiprotocol integration.")
           "0nb4h08di432lv7dy2v9kpwgk0w92f24sqc2hw2s9vwr5b8v8xvj"))))
     (build-system python-build-system)
     (native-inputs
-     `(("python-twisted" ,python-twisted)))
+     `(("python-pyev" ,python-pyev)
+       ("python-tornado" ,python-tornado)
+       ("python-twisted" ,python-twisted)))
     (home-page "https://pika.readthedocs.org")
     (synopsis "Pure Python AMQP Client Library")
     (description
@@ -10214,6 +10239,8 @@ implementation for Python.")
         (base32
           "1vyjd0b7wciv55i19l44zy0adx8q7ss79lhy2r9d1rwz2y4822zg"))))
   (build-system python-build-system)
+  (arguments
+   '(#:tests? #f)) ; The test suite uses some Windows-specific data types.
   (inputs `(("python-wcwidth" ,python-wcwidth)
             ("python-pygments" ,python-pygments)))
   (native-inputs `(("python-six" ,python-six)))
@@ -10681,6 +10708,8 @@ List.")
         (base32
          "06lx603gdwad5hc3hmn763ngq0rq9bzz1ni3ga72nzk5n872arkd"))))
     (build-system python-build-system)
+    (arguments
+     '(#:tests? #f)) ; The test suite requires network access.
     (home-page "https://github.com/pombredanne/python-publicsuffix2")
     (synopsis "Get a public suffix for a domain name using the Public Suffix List")
     (description "Get a public suffix for a domain name using the Public Suffix
@@ -11477,3 +11506,36 @@ useful as a validator for JSON data.")
     (description
       "This package adds SQLAlchemy support to your Flask application.")
     (license license:bsd-3)))
+
+(define-public python-pyev
+  (package
+    (name "python-pyev")
+    (version "0.9.0")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (pypi-uri "pyev" version))
+        (sha256
+         (base32
+          "0rf603lc0s6zpa1nb25vhd8g4y337wg2wyz56i0agsdh7jchl0sx"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:tests? #f ; no test suite
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'patch
+           (lambda* (#:key inputs #:allow-other-keys)
+             (let ((libev (string-append (assoc-ref inputs "libev")
+                                         "/lib/libev.so.4")))
+               (substitute* "setup.py"
+                 (("libev_dll_name = find_library\\(\\\"ev\\\"\\)")
+                  (string-append "libev_dll_name = \"" libev "\"")))))))))
+    (inputs
+     `(("libev" ,libev)))
+    (home-page "http://pythonhosted.org/pyev/")
+    (synopsis "Python libev interface")
+    (description "Pyev provides a Python interface to libev.")
+    (license license:gpl3)))
+
+(define-public python2-pyev
+  (package-with-python2 python-pyev))
diff --git a/gnu/packages/sdcc.scm b/gnu/packages/sdcc.scm
index c3d4bced26..331425d98f 100644
--- a/gnu/packages/sdcc.scm
+++ b/gnu/packages/sdcc.scm
@@ -49,7 +49,7 @@
     (arguments
      `(;; gputils is required for PIC ports
        #:configure-flags
-       '("--disable-pic14-port" "--disable-pic16-port")
+       '("--disable-pic14-port" "--disable-pic16-port" "--enable-ucsim")
        #:phases
        (modify-phases %standard-phases
          (add-after 'unpack 'patch-makefile
diff --git a/gnu/packages/video.scm b/gnu/packages/video.scm
index 1b1c16a2ec..c77b769c0c 100644
--- a/gnu/packages/video.scm
+++ b/gnu/packages/video.scm
@@ -434,14 +434,14 @@ standards (MPEG-2, MPEG-4 ASP/H.263, MPEG-4 AVC/H.264, and VC-1/VMW3).")
 (define-public ffmpeg
   (package
     (name "ffmpeg")
-    (version "3.1.5")
+    (version "3.2")
     (source (origin
              (method url-fetch)
              (uri (string-append "https://ffmpeg.org/releases/ffmpeg-"
                                  version ".tar.xz"))
              (sha256
               (base32
-               "16mqb1fs6ahqqv6a64dk4d8rp75ixdsipfzsz0vmc749yw2k3k29"))))
+               "1nnmd3h9pr2zic08isjcm1cmvcyd0aimpayb9r4qy45bihdhrxw8"))))
     (build-system gnu-build-system)
     (inputs
      `(("fontconfig" ,fontconfig)
@@ -1287,16 +1287,16 @@ capabilities.")
 (define-public vapoursynth
   (package
     (name "vapoursynth")
-    (version "34")
+    (version "35")
     (source (origin
               (method url-fetch)
               (uri (string-append
                     "https://github.com/vapoursynth/vapoursynth/archive/R"
                     version ".tar.gz"))
-              (file-name (string-append name "-" version))
+              (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                (base32
-                "0rfldphg4gy3sdfffi5yzklqz93vsj2j6nny8snjbavnf161blyi"))))
+                "0629ys2lf618n9cc644xlvx0vx52v2fp3sx14p4mx5rg9nlasb3n"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("autoconf" ,autoconf)
diff --git a/gnu/packages/vim.scm b/gnu/packages/vim.scm
index 4ee8c7d9fc..c14fa4cbbe 100644
--- a/gnu/packages/vim.scm
+++ b/gnu/packages/vim.scm
@@ -48,14 +48,15 @@
 (define-public vim
   (package
     (name "vim")
-    (version "8.0")
+    (version "8.0.0054")
     (source (origin
              (method url-fetch)
-             (uri (string-append "ftp://ftp.vim.org/pub/vim/unix/vim-"
-                                 version ".tar.bz2"))
+             (uri (string-append "https://github.com/vim/vim/archive/v"
+                                 version ".tar.gz"))
+             (file-name (string-append name "-" version ".tar.gz"))
              (sha256
               (base32
-               "1s34rf8089klsbdx5l0iw7vjymir0kzfrx8wb30s31wygnq29axc"))))
+               "018my9vmvflww9yzrrzgdbja8j075yxqj0czg351r6wrndqiv9vq"))))
     (build-system gnu-build-system)
     (arguments
      `(#:test-target "test"
diff --git a/guix/scripts/hash.scm b/guix/scripts/hash.scm
index b269ead50f..a339a8556b 100644
--- a/guix/scripts/hash.scm
+++ b/guix/scripts/hash.scm
@@ -139,7 +139,9 @@ and 'hexadecimal' can be used as well).\n"))
               (write-file file port #:select? select?)
               (force-output port)
               (get-hash))
-            (call-with-input-file file port-sha256))))
+            (match file
+              ("-" (port-sha256 (current-input-port)))
+              (_   (call-with-input-file file port-sha256))))))
 
     (match args
       ((file)
diff --git a/nix/libstore/local-store.cc b/nix/libstore/local-store.cc
index 347e8a703f..882bce1f40 100644
--- a/nix/libstore/local-store.cc
+++ b/nix/libstore/local-store.cc
@@ -40,171 +40,6 @@
 namespace nix {
 
 
-MakeError(SQLiteError, Error);
-MakeError(SQLiteBusy, SQLiteError);
-
-
-static void throwSQLiteError(sqlite3 * db, const format & f)
-    __attribute__ ((noreturn));
-
-static void throwSQLiteError(sqlite3 * db, const format & f)
-{
-    int err = sqlite3_errcode(db);
-    if (err == SQLITE_BUSY || err == SQLITE_PROTOCOL) {
-        if (err == SQLITE_PROTOCOL)
-            printMsg(lvlError, "warning: SQLite database is busy (SQLITE_PROTOCOL)");
-        else {
-            static bool warned = false;
-            if (!warned) {
-                printMsg(lvlError, "warning: SQLite database is busy");
-                warned = true;
-            }
-        }
-        /* Sleep for a while since retrying the transaction right away
-           is likely to fail again. */
-#if HAVE_NANOSLEEP
-        struct timespec t;
-        t.tv_sec = 0;
-        t.tv_nsec = (random() % 100) * 1000 * 1000; /* <= 0.1s */
-        nanosleep(&t, 0);
-#else
-        sleep(1);
-#endif
-        throw SQLiteBusy(format("%1%: %2%") % f.str() % sqlite3_errmsg(db));
-    }
-    else
-        throw SQLiteError(format("%1%: %2%") % f.str() % sqlite3_errmsg(db));
-}
-
-
-/* Convenience macros for retrying a SQLite transaction. */
-#define retry_sqlite while (1) { try {
-#define end_retry_sqlite break; } catch (SQLiteBusy & e) { } }
-
-
-SQLite::~SQLite()
-{
-    try {
-        if (db && sqlite3_close(db) != SQLITE_OK)
-            throwSQLiteError(db, "closing database");
-    } catch (...) {
-        ignoreException();
-    }
-}
-
-
-void SQLiteStmt::create(sqlite3 * db, const string & s)
-{
-    checkInterrupt();
-    assert(!stmt);
-    if (sqlite3_prepare_v2(db, s.c_str(), -1, &stmt, 0) != SQLITE_OK)
-        throwSQLiteError(db, "creating statement");
-    this->db = db;
-}
-
-
-void SQLiteStmt::reset()
-{
-    assert(stmt);
-    /* Note: sqlite3_reset() returns the error code for the most
-       recent call to sqlite3_step().  So ignore it. */
-    sqlite3_reset(stmt);
-    curArg = 1;
-}
-
-
-SQLiteStmt::~SQLiteStmt()
-{
-    try {
-        if (stmt && sqlite3_finalize(stmt) != SQLITE_OK)
-            throwSQLiteError(db, "finalizing statement");
-    } catch (...) {
-        ignoreException();
-    }
-}
-
-
-void SQLiteStmt::bind(const string & value)
-{
-    if (sqlite3_bind_text(stmt, curArg++, value.c_str(), -1, SQLITE_TRANSIENT) != SQLITE_OK)
-        throwSQLiteError(db, "binding argument");
-}
-
-
-void SQLiteStmt::bind(int value)
-{
-    if (sqlite3_bind_int(stmt, curArg++, value) != SQLITE_OK)
-        throwSQLiteError(db, "binding argument");
-}
-
-
-void SQLiteStmt::bind64(long long value)
-{
-    if (sqlite3_bind_int64(stmt, curArg++, value) != SQLITE_OK)
-        throwSQLiteError(db, "binding argument");
-}
-
-
-void SQLiteStmt::bind()
-{
-    if (sqlite3_bind_null(stmt, curArg++) != SQLITE_OK)
-        throwSQLiteError(db, "binding argument");
-}
-
-
-/* Helper class to ensure that prepared statements are reset when
-   leaving the scope that uses them.  Unfinished prepared statements
-   prevent transactions from being aborted, and can cause locks to be
-   kept when they should be released. */
-struct SQLiteStmtUse
-{
-    SQLiteStmt & stmt;
-    SQLiteStmtUse(SQLiteStmt & stmt) : stmt(stmt)
-    {
-        stmt.reset();
-    }
-    ~SQLiteStmtUse()
-    {
-        try {
-            stmt.reset();
-        } catch (...) {
-            ignoreException();
-        }
-    }
-};
-
-
-struct SQLiteTxn
-{
-    bool active;
-    sqlite3 * db;
-
-    SQLiteTxn(sqlite3 * db) : active(false) {
-        this->db = db;
-        if (sqlite3_exec(db, "begin;", 0, 0, 0) != SQLITE_OK)
-            throwSQLiteError(db, "starting transaction");
-        active = true;
-    }
-
-    void commit()
-    {
-        if (sqlite3_exec(db, "commit;", 0, 0, 0) != SQLITE_OK)
-            throwSQLiteError(db, "committing transaction");
-        active = false;
-    }
-
-    ~SQLiteTxn()
-    {
-        try {
-            if (active && sqlite3_exec(db, "rollback;", 0, 0, 0) != SQLITE_OK)
-                throwSQLiteError(db, "aborting transaction");
-        } catch (...) {
-            ignoreException();
-        }
-    }
-};
-
-
 void checkStoreNotSymlink()
 {
     if (getEnv("NIX_IGNORE_SYMLINK_STORE") == "1") return;
@@ -494,6 +329,7 @@ void LocalStore::openDB(bool create)
     // ensure efficient lookup.
     stmtQueryPathFromHashPart.create(db,
         "select path from ValidPaths where path >= ? limit 1;");
+    stmtQueryValidPaths.create(db, "select path from ValidPaths");
 }
 
 
@@ -688,23 +524,16 @@ void LocalStore::checkDerivationOutputs(const Path & drvPath, const Derivation &
 }
 
 
-unsigned long long LocalStore::addValidPath(const ValidPathInfo & info, bool checkOutputs)
+uint64_t LocalStore::addValidPath(const ValidPathInfo & info, bool checkOutputs)
 {
-    SQLiteStmtUse use(stmtRegisterValidPath);
-    stmtRegisterValidPath.bind(info.path);
-    stmtRegisterValidPath.bind("sha256:" + printHash(info.hash));
-    stmtRegisterValidPath.bind(info.registrationTime == 0 ? time(0) : info.registrationTime);
-    if (info.deriver != "")
-        stmtRegisterValidPath.bind(info.deriver);
-    else
-        stmtRegisterValidPath.bind(); // null
-    if (info.narSize != 0)
-        stmtRegisterValidPath.bind64(info.narSize);
-    else
-        stmtRegisterValidPath.bind(); // null
-    if (sqlite3_step(stmtRegisterValidPath) != SQLITE_DONE)
-        throwSQLiteError(db, format("registering valid path `%1%' in database") % info.path);
-    unsigned long long id = sqlite3_last_insert_rowid(db);
+    stmtRegisterValidPath.use()
+        (info.path)
+        ("sha256:" + printHash(info.hash))
+        (info.registrationTime == 0 ? time(0) : info.registrationTime)
+        (info.deriver, info.deriver != "")
+        (info.narSize, info.narSize != 0)
+        .exec();
+    uint64_t id = sqlite3_last_insert_rowid(db);
 
     /* If this is a derivation, then store the derivation outputs in
        the database.  This is useful for the garbage collector: it can
@@ -720,13 +549,12 @@ unsigned long long LocalStore::addValidPath(const ValidPathInfo & info, bool che
            registration above is undone. */
         if (checkOutputs) checkDerivationOutputs(info.path, drv);
 
-        foreach (DerivationOutputs::iterator, i, drv.outputs) {
-            SQLiteStmtUse use(stmtAddDerivationOutput);
-            stmtAddDerivationOutput.bind(id);
-            stmtAddDerivationOutput.bind(i->first);
-            stmtAddDerivationOutput.bind(i->second.path);
-            if (sqlite3_step(stmtAddDerivationOutput) != SQLITE_DONE)
-                throwSQLiteError(db, format("adding derivation output for `%1%' in database") % info.path);
+        for (auto & i : drv.outputs) {
+            stmtAddDerivationOutput.use()
+                (id)
+                (i.first)
+                (i.second.path)
+                .exec();
         }
     }
 
@@ -734,76 +562,52 @@ unsigned long long LocalStore::addValidPath(const ValidPathInfo & info, bool che
 }
 
 
-void LocalStore::addReference(unsigned long long referrer, unsigned long long reference)
+void LocalStore::addReference(uint64_t referrer, uint64_t reference)
 {
-    SQLiteStmtUse use(stmtAddReference);
-    stmtAddReference.bind(referrer);
-    stmtAddReference.bind(reference);
-    if (sqlite3_step(stmtAddReference) != SQLITE_DONE)
-        throwSQLiteError(db, "adding reference to database");
+    stmtAddReference.use()(referrer)(reference).exec();
 }
 
 
 void LocalStore::registerFailedPath(const Path & path)
 {
-    retry_sqlite {
-        SQLiteStmtUse use(stmtRegisterFailedPath);
-        stmtRegisterFailedPath.bind(path);
-        stmtRegisterFailedPath.bind(time(0));
-        if (sqlite3_step(stmtRegisterFailedPath) != SQLITE_DONE)
-            throwSQLiteError(db, format("registering failed path `%1%'") % path);
-    } end_retry_sqlite;
+    retrySQLite<void>([&]() {
+        stmtRegisterFailedPath.use()(path)(time(0)).step();
+    });
 }
 
 
 bool LocalStore::hasPathFailed(const Path & path)
 {
-    retry_sqlite {
-        SQLiteStmtUse use(stmtHasPathFailed);
-        stmtHasPathFailed.bind(path);
-        int res = sqlite3_step(stmtHasPathFailed);
-        if (res != SQLITE_DONE && res != SQLITE_ROW)
-            throwSQLiteError(db, "querying whether path failed");
-        return res == SQLITE_ROW;
-    } end_retry_sqlite;
+    return retrySQLite<bool>([&]() {
+        return stmtHasPathFailed.use()(path).next();
+    });
 }
 
 
 PathSet LocalStore::queryFailedPaths()
 {
-    retry_sqlite {
-        SQLiteStmtUse use(stmtQueryFailedPaths);
+    return retrySQLite<PathSet>([&]() {
+        auto useQueryFailedPaths(stmtQueryFailedPaths.use());
 
         PathSet res;
-        int r;
-        while ((r = sqlite3_step(stmtQueryFailedPaths)) == SQLITE_ROW) {
-            const char * s = (const char *) sqlite3_column_text(stmtQueryFailedPaths, 0);
-            assert(s);
-            res.insert(s);
-        }
-
-        if (r != SQLITE_DONE)
-            throwSQLiteError(db, "error querying failed paths");
+        while (useQueryFailedPaths.next())
+            res.insert(useQueryFailedPaths.getStr(0));
 
         return res;
-    } end_retry_sqlite;
+    });
 }
 
 
 void LocalStore::clearFailedPaths(const PathSet & paths)
 {
-    retry_sqlite {
+    retrySQLite<void>([&]() {
         SQLiteTxn txn(db);
 
-        foreach (PathSet::const_iterator, i, paths) {
-            SQLiteStmtUse use(stmtClearFailedPath);
-            stmtClearFailedPath.bind(*i);
-            if (sqlite3_step(stmtClearFailedPath) != SQLITE_DONE)
-                throwSQLiteError(db, format("clearing failed path `%1%' in database") % *i);
-        }
+        for (auto & path : paths)
+            stmtClearFailedPath.use()(path).exec();
 
         txn.commit();
-    } end_retry_sqlite;
+    });
 }
 
 
@@ -828,47 +632,34 @@ ValidPathInfo LocalStore::queryPathInfo(const Path & path)
 
     assertStorePath(path);
 
-    retry_sqlite {
+    return retrySQLite<ValidPathInfo>([&]() {
 
         /* Get the path info. */
-        SQLiteStmtUse use1(stmtQueryPathInfo);
+        auto useQueryPathInfo(stmtQueryPathInfo.use()(path));
 
-        stmtQueryPathInfo.bind(path);
+        if (!useQueryPathInfo.next())
+            throw Error(format("path `%1%' is not valid") % path);
 
-        int r = sqlite3_step(stmtQueryPathInfo);
-        if (r == SQLITE_DONE) throw Error(format("path `%1%' is not valid") % path);
-        if (r != SQLITE_ROW) throwSQLiteError(db, "querying path in database");
+        info.id = useQueryPathInfo.getInt(0);
 
-        info.id = sqlite3_column_int(stmtQueryPathInfo, 0);
+        info.hash = parseHashField(path, useQueryPathInfo.getStr(1));
 
-        const char * s = (const char *) sqlite3_column_text(stmtQueryPathInfo, 1);
-        assert(s);
-        info.hash = parseHashField(path, s);
+        info.registrationTime = useQueryPathInfo.getInt(2);
 
-        info.registrationTime = sqlite3_column_int(stmtQueryPathInfo, 2);
-
-        s = (const char *) sqlite3_column_text(stmtQueryPathInfo, 3);
+        auto s = (const char *) sqlite3_column_text(stmtQueryPathInfo, 3);
         if (s) info.deriver = s;
 
         /* Note that narSize = NULL yields 0. */
-        info.narSize = sqlite3_column_int64(stmtQueryPathInfo, 4);
+        info.narSize = useQueryPathInfo.getInt(4);
 
         /* Get the references. */
-        SQLiteStmtUse use2(stmtQueryReferences);
+        auto useQueryReferences(stmtQueryReferences.use()(info.id));
 
-        stmtQueryReferences.bind(info.id);
-
-        while ((r = sqlite3_step(stmtQueryReferences)) == SQLITE_ROW) {
-            s = (const char *) sqlite3_column_text(stmtQueryReferences, 0);
-            assert(s);
-            info.references.insert(s);
-        }
-
-        if (r != SQLITE_DONE)
-            throwSQLiteError(db, format("error getting references of `%1%'") % path);
+        while (useQueryReferences.next())
+            info.references.insert(useQueryReferences.getStr(0));
 
         return info;
-    } end_retry_sqlite;
+    });
 }
 
 
@@ -876,78 +667,56 @@ ValidPathInfo LocalStore::queryPathInfo(const Path & path)
    narSize field. */
 void LocalStore::updatePathInfo(const ValidPathInfo & info)
 {
-    SQLiteStmtUse use(stmtUpdatePathInfo);
-    if (info.narSize != 0)
-        stmtUpdatePathInfo.bind64(info.narSize);
-    else
-        stmtUpdatePathInfo.bind(); // null
-    stmtUpdatePathInfo.bind("sha256:" + printHash(info.hash));
-    stmtUpdatePathInfo.bind(info.path);
-    if (sqlite3_step(stmtUpdatePathInfo) != SQLITE_DONE)
-        throwSQLiteError(db, format("updating info of path `%1%' in database") % info.path);
+    stmtUpdatePathInfo.use()
+        (info.narSize, info.narSize != 0)
+        ("sha256:" + printHash(info.hash))
+        (info.path)
+        .exec();
 }
 
 
-unsigned long long LocalStore::queryValidPathId(const Path & path)
+uint64_t LocalStore::queryValidPathId(const Path & path)
 {
-    SQLiteStmtUse use(stmtQueryPathInfo);
-    stmtQueryPathInfo.bind(path);
-    int res = sqlite3_step(stmtQueryPathInfo);
-    if (res == SQLITE_ROW) return sqlite3_column_int(stmtQueryPathInfo, 0);
-    if (res == SQLITE_DONE) throw Error(format("path `%1%' is not valid") % path);
-    throwSQLiteError(db, "querying path in database");
+    auto use(stmtQueryPathInfo.use()(path));
+    if (!use.next())
+        throw Error(format("path ‘%1%’ is not valid") % path);
+    return use.getInt(0);
 }
 
 
 bool LocalStore::isValidPath_(const Path & path)
 {
-    SQLiteStmtUse use(stmtQueryPathInfo);
-    stmtQueryPathInfo.bind(path);
-    int res = sqlite3_step(stmtQueryPathInfo);
-    if (res != SQLITE_DONE && res != SQLITE_ROW)
-        throwSQLiteError(db, "querying path in database");
-    return res == SQLITE_ROW;
+    return stmtQueryPathInfo.use()(path).next();
 }
 
 
 bool LocalStore::isValidPath(const Path & path)
 {
-    retry_sqlite {
+    return retrySQLite<bool>([&]() {
         return isValidPath_(path);
-    } end_retry_sqlite;
+    });
 }
 
 
 PathSet LocalStore::queryValidPaths(const PathSet & paths)
 {
-    retry_sqlite {
+    return retrySQLite<PathSet>([&]() {
         PathSet res;
         foreach (PathSet::const_iterator, i, paths)
             if (isValidPath_(*i)) res.insert(*i);
         return res;
-    } end_retry_sqlite;
+    });
 }
 
 
 PathSet LocalStore::queryAllValidPaths()
 {
-    retry_sqlite {
-        SQLiteStmt stmt;
-        stmt.create(db, "select path from ValidPaths");
-
+    return retrySQLite<PathSet>([&]() {
+        auto use(stmtQueryValidPaths.use());
         PathSet res;
-        int r;
-        while ((r = sqlite3_step(stmt)) == SQLITE_ROW) {
-            const char * s = (const char *) sqlite3_column_text(stmt, 0);
-            assert(s);
-            res.insert(s);
-        }
-
-        if (r != SQLITE_DONE)
-            throwSQLiteError(db, "error getting valid paths");
-
+        while (use.next()) res.insert(use.getStr(0));
         return res;
-    } end_retry_sqlite;
+    });
 }
 
 
@@ -961,28 +730,19 @@ void LocalStore::queryReferences(const Path & path,
 
 void LocalStore::queryReferrers_(const Path & path, PathSet & referrers)
 {
-    SQLiteStmtUse use(stmtQueryReferrers);
+    auto useQueryReferrers(stmtQueryReferrers.use()(path));
 
-    stmtQueryReferrers.bind(path);
-
-    int r;
-    while ((r = sqlite3_step(stmtQueryReferrers)) == SQLITE_ROW) {
-        const char * s = (const char *) sqlite3_column_text(stmtQueryReferrers, 0);
-        assert(s);
-        referrers.insert(s);
-    }
-
-    if (r != SQLITE_DONE)
-        throwSQLiteError(db, format("error getting references of `%1%'") % path);
+    while (useQueryReferrers.next())
+        referrers.insert(useQueryReferrers.getStr(0));
 }
 
 
 void LocalStore::queryReferrers(const Path & path, PathSet & referrers)
 {
     assertStorePath(path);
-    retry_sqlite {
+    return retrySQLite<void>([&]() {
         queryReferrers_(path, referrers);
-    } end_retry_sqlite;
+    });
 }
 
 
@@ -996,67 +756,43 @@ PathSet LocalStore::queryValidDerivers(const Path & path)
 {
     assertStorePath(path);
 
-    retry_sqlite {
-        SQLiteStmtUse use(stmtQueryValidDerivers);
-        stmtQueryValidDerivers.bind(path);
+    return retrySQLite<PathSet>([&]() {
+        auto useQueryValidDerivers(stmtQueryValidDerivers.use()(path));
 
         PathSet derivers;
-        int r;
-        while ((r = sqlite3_step(stmtQueryValidDerivers)) == SQLITE_ROW) {
-            const char * s = (const char *) sqlite3_column_text(stmtQueryValidDerivers, 1);
-            assert(s);
-            derivers.insert(s);
-        }
-
-        if (r != SQLITE_DONE)
-            throwSQLiteError(db, format("error getting valid derivers of `%1%'") % path);
+        while (useQueryValidDerivers.next())
+            derivers.insert(useQueryValidDerivers.getStr(1));
 
         return derivers;
-    } end_retry_sqlite;
+    });
 }
 
 
 PathSet LocalStore::queryDerivationOutputs(const Path & path)
 {
-    retry_sqlite {
-        SQLiteStmtUse use(stmtQueryDerivationOutputs);
-        stmtQueryDerivationOutputs.bind(queryValidPathId(path));
+    return retrySQLite<PathSet>([&]() {
+        auto useQueryDerivationOutputs(stmtQueryDerivationOutputs.use()(queryValidPathId(path)));
 
         PathSet outputs;
-        int r;
-        while ((r = sqlite3_step(stmtQueryDerivationOutputs)) == SQLITE_ROW) {
-            const char * s = (const char *) sqlite3_column_text(stmtQueryDerivationOutputs, 1);
-            assert(s);
-            outputs.insert(s);
-        }
-
-        if (r != SQLITE_DONE)
-            throwSQLiteError(db, format("error getting outputs of `%1%'") % path);
+        while (useQueryDerivationOutputs.next())
+            outputs.insert(useQueryDerivationOutputs.getStr(1));
 
         return outputs;
-    } end_retry_sqlite;
+    });
 }
 
 
 StringSet LocalStore::queryDerivationOutputNames(const Path & path)
 {
-    retry_sqlite {
-        SQLiteStmtUse use(stmtQueryDerivationOutputs);
-        stmtQueryDerivationOutputs.bind(queryValidPathId(path));
+    return retrySQLite<StringSet>([&]() {
+        auto useQueryDerivationOutputs(stmtQueryDerivationOutputs.use()(queryValidPathId(path)));
 
         StringSet outputNames;
-        int r;
-        while ((r = sqlite3_step(stmtQueryDerivationOutputs)) == SQLITE_ROW) {
-            const char * s = (const char *) sqlite3_column_text(stmtQueryDerivationOutputs, 0);
-            assert(s);
-            outputNames.insert(s);
-        }
-
-        if (r != SQLITE_DONE)
-            throwSQLiteError(db, format("error getting output names of `%1%'") % path);
+        while (useQueryDerivationOutputs.next())
+            outputNames.insert(useQueryDerivationOutputs.getStr(0));
 
         return outputNames;
-    } end_retry_sqlite;
+    });
 }
 
 
@@ -1066,17 +802,14 @@ Path LocalStore::queryPathFromHashPart(const string & hashPart)
 
     Path prefix = settings.nixStore + "/" + hashPart;
 
-    retry_sqlite {
-        SQLiteStmtUse use(stmtQueryPathFromHashPart);
-        stmtQueryPathFromHashPart.bind(prefix);
+    return retrySQLite<Path>([&]() -> Path {
+        auto useQueryPathFromHashPart(stmtQueryPathFromHashPart.use()(prefix));
 
-        int res = sqlite3_step(stmtQueryPathFromHashPart);
-        if (res == SQLITE_DONE) return "";
-        if (res != SQLITE_ROW) throwSQLiteError(db, "finding path in database");
+        if (!useQueryPathFromHashPart.next()) return "";
 
         const char * s = (const char *) sqlite3_column_text(stmtQueryPathFromHashPart, 0);
         return s && prefix.compare(0, prefix.size(), s, prefix.size()) == 0 ? s : "";
-    } end_retry_sqlite;
+    });
 }
 
 
@@ -1306,7 +1039,7 @@ void LocalStore::registerValidPaths(const ValidPathInfos & infos)
      * expense of some speed of the path registering operation. */
     if (settings.syncBeforeRegistering) sync();
 
-    retry_sqlite {
+    return retrySQLite<void>([&]() {
         SQLiteTxn txn(db);
         PathSet paths;
 
@@ -1319,10 +1052,10 @@ void LocalStore::registerValidPaths(const ValidPathInfos & infos)
             paths.insert(i->path);
         }
 
-        foreach (ValidPathInfos::const_iterator, i, infos) {
-            unsigned long long referrer = queryValidPathId(i->path);
-            foreach (PathSet::iterator, j, i->references)
-                addReference(referrer, queryValidPathId(*j));
+        for (auto & i : infos) {
+            auto referrer = queryValidPathId(i.path);
+            for (auto & j : i.references)
+                addReference(referrer, queryValidPathId(j));
         }
 
         /* Check that the derivation outputs are correct.  We can't do
@@ -1343,7 +1076,7 @@ void LocalStore::registerValidPaths(const ValidPathInfos & infos)
         topoSortPaths(*this, paths);
 
         txn.commit();
-    } end_retry_sqlite;
+    });
 }
 
 
@@ -1355,12 +1088,7 @@ void LocalStore::invalidatePath(const Path & path)
 
     drvHashes.erase(path);
 
-    SQLiteStmtUse use(stmtInvalidatePath);
-
-    stmtInvalidatePath.bind(path);
-
-    if (sqlite3_step(stmtInvalidatePath) != SQLITE_DONE)
-        throwSQLiteError(db, format("invalidating path `%1%' in database") % path);
+    stmtInvalidatePath.use()(path).exec();
 
     /* Note that the foreign key constraints on the Refs table take
        care of deleting the references entries for `path'. */
@@ -1733,7 +1461,7 @@ void LocalStore::invalidatePathChecked(const Path & path)
 {
     assertStorePath(path);
 
-    retry_sqlite {
+    retrySQLite<void>([&]() {
         SQLiteTxn txn(db);
 
         if (isValidPath_(path)) {
@@ -1746,7 +1474,7 @@ void LocalStore::invalidatePathChecked(const Path & path)
         }
 
         txn.commit();
-    } end_retry_sqlite;
+    });
 }
 
 
diff --git a/nix/libstore/local-store.hh b/nix/libstore/local-store.hh
index 819f59327a..6110468498 100644
--- a/nix/libstore/local-store.hh
+++ b/nix/libstore/local-store.hh
@@ -1,15 +1,12 @@
 #pragma once
 
+#include "sqlite.hh"
 #include <string>
 #include <unordered_set>
 
+#include "pathlocks.hh"
 #include "store-api.hh"
 #include "util.hh"
-#include "pathlocks.hh"
-
-
-class sqlite3;
-class sqlite3_stmt;
 
 
 namespace nix {
@@ -52,34 +49,6 @@ struct RunningSubstituter
 };
 
 
-/* Wrapper object to close the SQLite database automatically. */
-struct SQLite
-{
-    sqlite3 * db;
-    SQLite() { db = 0; }
-    ~SQLite();
-    operator sqlite3 * () { return db; }
-};
-
-
-/* Wrapper object to create and destroy SQLite prepared statements. */
-struct SQLiteStmt
-{
-    sqlite3 * db;
-    sqlite3_stmt * stmt;
-    unsigned int curArg;
-    SQLiteStmt() { stmt = 0; }
-    void create(sqlite3 * db, const string & s);
-    void reset();
-    ~SQLiteStmt();
-    operator sqlite3_stmt * () { return stmt; }
-    void bind(const string & value);
-    void bind(int value);
-    void bind64(long long value);
-    void bind();
-};
-
-
 class LocalStore : public StoreAPI
 {
 private:
@@ -238,6 +207,7 @@ private:
     SQLiteStmt stmtQueryValidDerivers;
     SQLiteStmt stmtQueryDerivationOutputs;
     SQLiteStmt stmtQueryPathFromHashPart;
+    SQLiteStmt stmtQueryValidPaths;
 
     /* Cache for pathContentsGood(). */
     std::map<Path, bool> pathContentsGoodCache;
@@ -254,11 +224,11 @@ private:
 
     void makeStoreWritable();
 
-    unsigned long long queryValidPathId(const Path & path);
+    uint64_t queryValidPathId(const Path & path);
 
-    unsigned long long addValidPath(const ValidPathInfo & info, bool checkOutputs = true);
+    uint64_t addValidPath(const ValidPathInfo & info, bool checkOutputs = true);
 
-    void addReference(unsigned long long referrer, unsigned long long reference);
+    void addReference(uint64_t referrer, uint64_t reference);
 
     void appendReferrer(const Path & from, const Path & to, bool lock);
 
diff --git a/nix/libstore/optimise-store.cc b/nix/libstore/optimise-store.cc
index d7508b025e..565c62ca83 100644
--- a/nix/libstore/optimise-store.cc
+++ b/nix/libstore/optimise-store.cc
@@ -148,10 +148,23 @@ void LocalStore::optimisePath_(OptimiseStats & stats, const Path & path, InodeHa
             inodeHash.insert(st.st_ino);
             return;
         }
-        if (errno != EEXIST)
+
+	switch (errno) {
+	case EEXIST:
+	    /* Fall through if another process created ‘linkPath’ before
+	       we did. */
+	    break;
+
+	case ENOSPC:
+	    /* On ext4, that probably means the directory index is full.  When
+	       that happens, it's fine to ignore it: we just effectively
+	       disable deduplication of this file.  */
+	    printMsg(lvlInfo, format("cannot link `%1%' to `%2%': %m") % linkPath % path);
+	    return;
+
+	default:
             throw SysError(format("cannot link `%1%' to `%2%'") % linkPath % path);
-        /* Fall through if another process created ‘linkPath’ before
-           we did. */
+	}
     }
 
     /* Yes!  We've seen a file with the same contents.  Replace the
@@ -195,8 +208,8 @@ void LocalStore::optimisePath_(OptimiseStats & stats, const Path & path, InodeHa
                 printMsg(lvlInfo, format("`%1%' has maximum number of links") % linkPath);
             return;
         }
-        throw SysError(format("cannot link `%1%' to `%2%'") % tempLink % linkPath);
-    }
+	    throw SysError(format("cannot link `%1%' to `%2%'") % tempLink % linkPath);
+	}
 
     /* Atomically replace the old file with the new hard link. */
     if (rename(tempLink.c_str(), path.c_str()) == -1) {
diff --git a/nix/libstore/sqlite.cc b/nix/libstore/sqlite.cc
new file mode 100644
index 0000000000..e08c67f40e
--- /dev/null
+++ b/nix/libstore/sqlite.cc
@@ -0,0 +1,166 @@
+#include "sqlite.hh"
+#include "util.hh"
+
+#include <sqlite3.h>
+
+namespace nix {
+
+[[noreturn]] void throwSQLiteError(sqlite3 * db, const format & f)
+{
+    int err = sqlite3_errcode(db);
+    if (err == SQLITE_BUSY || err == SQLITE_PROTOCOL) {
+        if (err == SQLITE_PROTOCOL)
+            printMsg(lvlError, "warning: SQLite database is busy (SQLITE_PROTOCOL)");
+        else {
+            static bool warned = false;
+            if (!warned) {
+                printMsg(lvlError, "warning: SQLite database is busy");
+                warned = true;
+            }
+        }
+        /* Sleep for a while since retrying the transaction right away
+           is likely to fail again. */
+#if HAVE_NANOSLEEP
+        struct timespec t;
+        t.tv_sec = 0;
+        t.tv_nsec = (random() % 100) * 1000 * 1000; /* <= 0.1s */
+        nanosleep(&t, 0);
+#else
+        sleep(1);
+#endif
+        throw SQLiteBusy(format("%1%: %2%") % f.str() % sqlite3_errmsg(db));
+    }
+    else
+        throw SQLiteError(format("%1%: %2%") % f.str() % sqlite3_errmsg(db));
+}
+
+SQLite::~SQLite()
+{
+    try {
+        if (db && sqlite3_close(db) != SQLITE_OK)
+            throwSQLiteError(db, "closing database");
+    } catch (...) {
+        ignoreException();
+    }
+}
+
+void SQLiteStmt::create(sqlite3 * db, const string & s)
+{
+    checkInterrupt();
+    assert(!stmt);
+    if (sqlite3_prepare_v2(db, s.c_str(), -1, &stmt, 0) != SQLITE_OK)
+        throwSQLiteError(db, "creating statement");
+    this->db = db;
+}
+
+SQLiteStmt::~SQLiteStmt()
+{
+    try {
+        if (stmt && sqlite3_finalize(stmt) != SQLITE_OK)
+            throwSQLiteError(db, "finalizing statement");
+    } catch (...) {
+        ignoreException();
+    }
+}
+
+SQLiteStmt::Use::Use(SQLiteStmt & stmt)
+    : stmt(stmt)
+{
+    assert(stmt.stmt);
+    /* Note: sqlite3_reset() returns the error code for the most
+       recent call to sqlite3_step().  So ignore it. */
+    sqlite3_reset(stmt);
+}
+
+SQLiteStmt::Use::~Use()
+{
+    sqlite3_reset(stmt);
+}
+
+SQLiteStmt::Use & SQLiteStmt::Use::operator () (const std::string & value, bool notNull)
+{
+    if (notNull) {
+        if (sqlite3_bind_text(stmt, curArg++, value.c_str(), -1, SQLITE_TRANSIENT) != SQLITE_OK)
+            throwSQLiteError(stmt.db, "binding argument");
+    } else
+        bind();
+    return *this;
+}
+
+SQLiteStmt::Use & SQLiteStmt::Use::operator () (int64_t value, bool notNull)
+{
+    if (notNull) {
+        if (sqlite3_bind_int64(stmt, curArg++, value) != SQLITE_OK)
+            throwSQLiteError(stmt.db, "binding argument");
+    } else
+        bind();
+    return *this;
+}
+
+SQLiteStmt::Use & SQLiteStmt::Use::bind()
+{
+    if (sqlite3_bind_null(stmt, curArg++) != SQLITE_OK)
+        throwSQLiteError(stmt.db, "binding argument");
+    return *this;
+}
+
+int SQLiteStmt::Use::step()
+{
+    return sqlite3_step(stmt);
+}
+
+void SQLiteStmt::Use::exec()
+{
+    int r = step();
+    assert(r != SQLITE_ROW);
+    if (r != SQLITE_DONE)
+        throwSQLiteError(stmt.db, "executing SQLite statement");
+}
+
+bool SQLiteStmt::Use::next()
+{
+    int r = step();
+    if (r != SQLITE_DONE && r != SQLITE_ROW)
+        throwSQLiteError(stmt.db, "executing SQLite query");
+    return r == SQLITE_ROW;
+}
+
+std::string SQLiteStmt::Use::getStr(int col)
+{
+    auto s = (const char *) sqlite3_column_text(stmt, col);
+    assert(s);
+    return s;
+}
+
+int64_t SQLiteStmt::Use::getInt(int col)
+{
+    // FIXME: detect nulls?
+    return sqlite3_column_int64(stmt, col);
+}
+
+SQLiteTxn::SQLiteTxn(sqlite3 * db)
+{
+    this->db = db;
+    if (sqlite3_exec(db, "begin;", 0, 0, 0) != SQLITE_OK)
+        throwSQLiteError(db, "starting transaction");
+    active = true;
+}
+
+void SQLiteTxn::commit()
+{
+    if (sqlite3_exec(db, "commit;", 0, 0, 0) != SQLITE_OK)
+        throwSQLiteError(db, "committing transaction");
+    active = false;
+}
+
+SQLiteTxn::~SQLiteTxn()
+{
+    try {
+        if (active && sqlite3_exec(db, "rollback;", 0, 0, 0) != SQLITE_OK)
+            throwSQLiteError(db, "aborting transaction");
+    } catch (...) {
+        ignoreException();
+    }
+}
+
+}
diff --git a/nix/libstore/sqlite.hh b/nix/libstore/sqlite.hh
new file mode 100644
index 0000000000..326e4a4855
--- /dev/null
+++ b/nix/libstore/sqlite.hh
@@ -0,0 +1,102 @@
+#pragma once
+
+#include <functional>
+#include <string>
+
+#include "types.hh"
+
+class sqlite3;
+class sqlite3_stmt;
+
+namespace nix {
+
+/* RAII wrapper to close a SQLite database automatically. */
+struct SQLite
+{
+    sqlite3 * db;
+    SQLite() { db = 0; }
+    ~SQLite();
+    operator sqlite3 * () { return db; }
+};
+
+/* RAII wrapper to create and destroy SQLite prepared statements. */
+struct SQLiteStmt
+{
+    sqlite3 * db = 0;
+    sqlite3_stmt * stmt = 0;
+    SQLiteStmt() { }
+    void create(sqlite3 * db, const std::string & s);
+    ~SQLiteStmt();
+    operator sqlite3_stmt * () { return stmt; }
+
+    /* Helper for binding / executing statements. */
+    class Use
+    {
+        friend struct SQLiteStmt;
+    private:
+        SQLiteStmt & stmt;
+        unsigned int curArg = 1;
+        Use(SQLiteStmt & stmt);
+
+    public:
+
+        ~Use();
+
+        /* Bind the next parameter. */
+        Use & operator () (const std::string & value, bool notNull = true);
+        Use & operator () (int64_t value, bool notNull = true);
+        Use & bind(); // null
+
+        int step();
+
+        /* Execute a statement that does not return rows. */
+        void exec();
+
+        /* For statements that return 0 or more rows. Returns true iff
+           a row is available. */
+        bool next();
+
+        std::string getStr(int col);
+        int64_t getInt(int col);
+    };
+
+    Use use()
+    {
+        return Use(*this);
+    }
+};
+
+/* RAII helper that ensures transactions are aborted unless explicitly
+   committed. */
+struct SQLiteTxn
+{
+    bool active = false;
+    sqlite3 * db;
+
+    SQLiteTxn(sqlite3 * db);
+
+    void commit();
+
+    ~SQLiteTxn();
+};
+
+
+MakeError(SQLiteError, Error);
+MakeError(SQLiteBusy, SQLiteError);
+
+[[noreturn]] void throwSQLiteError(sqlite3 * db, const format & f);
+
+/* Convenience function for retrying a SQLite transaction when the
+   database is busy. */
+template<typename T>
+T retrySQLite(std::function<T()> fun)
+{
+    while (true) {
+        try {
+            return fun();
+        } catch (SQLiteBusy & e) {
+        }
+    }
+}
+
+}
diff --git a/nix/libstore/store-api.hh b/nix/libstore/store-api.hh
index 3e982f6dd3..fa78d595f2 100644
--- a/nix/libstore/store-api.hh
+++ b/nix/libstore/store-api.hh
@@ -89,8 +89,8 @@ struct ValidPathInfo
     Hash hash;
     PathSet references;
     time_t registrationTime = 0;
-    unsigned long long narSize = 0; // 0 = unknown
-    unsigned long long id; // internal use only
+    uint64_t narSize = 0; // 0 = unknown
+    uint64_t id; // internal use only
 
     bool operator == (const ValidPathInfo & i) const
     {
diff --git a/nix/local.mk b/nix/local.mk
index b0e9bc1a2b..c666edd033 100644
--- a/nix/local.mk
+++ b/nix/local.mk
@@ -86,7 +86,8 @@ libstore_a_SOURCES =				\
   %D%/libstore/local-store.cc			\
   %D%/libstore/build.cc				\
   %D%/libstore/pathlocks.cc			\
-  %D%/libstore/derivations.cc
+  %D%/libstore/derivations.cc			\
+  %D%/libstore/sqlite.cc
 
 libstore_headers =				\
   %D%/libstore/references.hh			\
@@ -96,6 +97,7 @@ libstore_headers =				\
   %D%/libstore/derivations.hh			\
   %D%/libstore/misc.hh				\
   %D%/libstore/local-store.hh			\
+  %D%/libstore/sqlite.hh			\
   %D%/libstore/store-api.hh
 
 libstore_a_CPPFLAGS =				\
diff --git a/tests/guix-hash.sh b/tests/guix-hash.sh
index 44213d51af..190c9e7f8a 100644
--- a/tests/guix-hash.sh
+++ b/tests/guix-hash.sh
@@ -1,5 +1,5 @@
 # GNU Guix --- Functional package management for GNU
-# Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.org>
+# Copyright © 2013, 2014, 2016 Ludovic Courtès <ludo@gnu.org>
 # Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
 #
 # This file is part of GNU Guix.
@@ -27,6 +27,7 @@ tmpdir="guix-hash-$$"
 trap 'rm -rf "$tmpdir"' EXIT
 
 test `guix hash /dev/null` = 0mdqa9w1p6cmli6976v4wi0sw9r4p5prkj7lzfd1877wk11c9c73
+test `echo -n | guix hash -` = 0mdqa9w1p6cmli6976v4wi0sw9r4p5prkj7lzfd1877wk11c9c73
 test `guix hash -f nix-base32 /dev/null` = 0mdqa9w1p6cmli6976v4wi0sw9r4p5prkj7lzfd1877wk11c9c73
 test `guix hash -f hex /dev/null` = e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
 test `guix hash -f base32 /dev/null` = 4oymiquy7qobjgx36tejs35zeqt24qpemsnzgtfeswmrw6csxbkq