gnu: GnuTLS: Update to 3.6.5.

* gnu/packages/patches/gnutls-skip-pkgconfig-test.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.
* gnu/packages/tls.scm (gnutls): Update to 3.6.5.
[source](patches): Remove obsolete.
[source](snippet): Add Guile detection fix.
* gnu/packages/gnome.scm (libsoup)[arguments]: Adjust 'certtool' invokation to
cope with the new API.

gnu/local.mk

@@ -772,7 +772,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/gnucash-price-quotes-perl.patch		\
   %D%/packages/patches/gnucash-disable-failing-tests.patch	\
   %D%/packages/patches/gnutls-skip-trust-store-test.patch	\
-  %D%/packages/patches/gnutls-skip-pkgconfig-test.patch		\
   %D%/packages/patches/gobject-introspection-absolute-shlib-path.patch \
   %D%/packages/patches/gobject-introspection-cc.patch		\
   %D%/packages/patches/gobject-introspection-girepository.patch	\

gnu/packages/gnome.scm

@@ -2556,7 +2556,8 @@ libxml to ease remote use of the RESTful API.")
                            ""               ;URI of subject
                            "127.0.0.1"      ;IP address of subject
                            ""               ;signing?
-                           ""               ;encryption?
+                           ""               ;encryption (RSA)?
+                           ""               ;data encryption?
                            ""               ;sign OCSP requests?
                            ""               ;sign code?
                            ""               ;time stamping?

gnu/packages/patches/gnutls-skip-pkgconfig-test.patch

@@ -1,24 +0,0 @@
-FIXME: The static test fails with an error such as:
-
-/tmp/guix-build-gnutls-3.5.13.drv-0/ccOnGPmc.o: In function `main':
-c.29617.tmp.c:(.text+0x5): undefined reference to `gnutls_global_init'
-collect2: error: ld returned 1 exit status
-FAIL pkgconfig.sh (exit status: 1)
-
-diff --git a/tests/pkgconfig.sh b/tests/pkgconfig.sh
-index 6bd4e62f9..05aab8278 100755
---- a/tests/pkgconfig.sh
-+++ b/tests/pkgconfig.sh
-@@ -57,11 +57,7 @@ echo "Trying dynamic linking with:"
- echo "  * flags: $(${PKGCONFIG} --libs gnutls)"
- echo "  * common: ${COMMON}"
- echo "  * lib: ${CFLAGS}"
--cc ${TMPFILE} -o ${TMPFILE_O} $(${PKGCONFIG} --libs gnutls) $(${PKGCONFIG} --cflags gnutls) ${COMMON}
--
--echo ""
--echo "Trying static linking with $(${PKGCONFIG} --libs --static gnutls)"
--cc ${TMPFILE} -o ${TMPFILE_O} $(${PKGCONFIG} --static --libs gnutls) $(${PKGCONFIG} --cflags gnutls) ${COMMON}
-+gcc ${TMPFILE} -o ${TMPFILE_O} $(${PKGCONFIG} --libs gnutls) $(${PKGCONFIG} --cflags gnutls) ${COMMON}
- 
- rm -f ${TMPFILE} ${TMPFILE_O}
- 

gnu/packages/tls.scm

@@ -162,7 +162,7 @@ living in the same process.")
 (define-public gnutls
   (package
     (name "gnutls")
-    (version "3.5.18")
+    (version "3.6.5")
     (source (origin
              (method url-fetch)
              (uri
@@ -171,12 +171,19 @@ living in the same process.")
               (string-append "mirror://gnupg/gnutls/v"
                              (version-major+minor version)
                              "/gnutls-" version ".tar.xz"))
-             (patches
-              (search-patches "gnutls-skip-trust-store-test.patch"
-                              "gnutls-skip-pkgconfig-test.patch"))
+             (patches (search-patches "gnutls-skip-trust-store-test.patch"))
              (sha256
               (base32
-               "0d02x28fwkkx7xzn7807nww6idchizzq3plx8sfcyiw7wzclh8mf"))))
+               "0ddvg97dyrh8dkffv1mdc0knxx5my3qdbzv97s4a6jggmk9wwgh7"))
+             (modules '((guix build utils)))
+             (snippet
+              '(begin
+                 ;; XXX: The generated configure script in GnuTLS 3.6.5
+                 ;; apparently does not know about Guile 2.2.
+                 (substitute* "configure"
+                   (("guile_versions_to_search=\"2\\.0 1\\.8\"")
+                    "guile_versions_to_search=\"2.2 2.0 1.8\""))
+                 #t))))
     (build-system gnu-build-system)
     (arguments
      `(; Ensure we don't keep a reference to this buggy software.