Move operating system helpers from (guix build …) to (gnu build …).

* guix/build/activation.scm, guix/build/install.scm,
  guix/build/linux-initrd.scm, guix/build/vm.scm: Move to...
* gnu/build: ... here.
* Makefile.am (MODULES): Remove the above guix/build/ files.
* gnu-system.am (GNU_SYSTEM_MODULES): Add the above gnu/build/ files
  here.
* gnu/services/base.scm, gnu/services/dmd.scm, gnu/system.scm,
  gnu/system/linux-initrd.scm, gnu/system/vm.scm,
  guix/scripts/system.scm: Adjust to the new module names.

Makefile.am

@@ -62,7 +62,6 @@ MODULES =					\
   guix/build/git.scm				\
   guix/build/gnu-build-system.scm		\
   guix/build/gnu-dist.scm			\
-  guix/build/linux-initrd.scm			\
   guix/build/perl-build-system.scm		\
   guix/build/python-build-system.scm		\
   guix/build/utils.scm				\
@@ -70,9 +69,6 @@ MODULES =					\
   guix/build/pull.scm				\
   guix/build/rpath.scm				\
   guix/build/svn.scm				\
-  guix/build/vm.scm				\
-  guix/build/install.scm			\
-  guix/build/activation.scm			\
   guix/build/syscalls.scm			\
   guix/build/emacs-utils.scm			\
   guix/packages.scm				\

gnu-system.am

@@ -28,7 +28,7 @@ GNU_SYSTEM_MODULES =				\
   gnu/packages/acl.scm				\
   gnu/packages/admin.scm			\
   gnu/packages/algebra.scm			\
-  gnu/packages/aidc.scm 			\
+  gnu/packages/aidc.scm				\
   gnu/packages/apl.scm				\
   gnu/packages/apr.scm				\
   gnu/packages/asciidoc.scm			\
@@ -58,7 +58,7 @@ GNU_SYSTEM_MODULES =				\
   gnu/packages/compression.scm			\
   gnu/packages/complexity.scm			\
   gnu/packages/conkeror.scm			\
-  gnu/packages/cook.scm 			\
+  gnu/packages/cook.scm				\
   gnu/packages/cpio.scm				\
   gnu/packages/cppi.scm				\
   gnu/packages/cross-base.scm			\
@@ -151,7 +151,7 @@ GNU_SYSTEM_MODULES =				\
   gnu/packages/lightning.scm			\
   gnu/packages/links.scm			\
   gnu/packages/linux.scm			\
-  gnu/packages/lisp.scm			\
+  gnu/packages/lisp.scm				\
   gnu/packages/lout.scm				\
   gnu/packages/lsh.scm				\
   gnu/packages/lsof.scm				\
@@ -180,7 +180,7 @@ GNU_SYSTEM_MODULES =				\
   gnu/packages/nettle.scm			\
   gnu/packages/node.scm				\
   gnu/packages/noweb.scm			\
-  gnu/packages/nvi.scm                          \
+  gnu/packages/nvi.scm				\
   gnu/packages/ocaml.scm			\
   gnu/packages/ocrad.scm			\
   gnu/packages/onc-rpc.scm			\
@@ -277,7 +277,13 @@ GNU_SYSTEM_MODULES =				\
   gnu/system/linux.scm				\
   gnu/system/linux-initrd.scm			\
   gnu/system/shadow.scm				\
-  gnu/system/vm.scm
+  gnu/system/vm.scm				\
+						\
+  gnu/build/activation.scm			\
+  gnu/build/install.scm				\
+  gnu/build/linux-initrd.scm			\
+  gnu/build/vm.scm
+
 
 patchdir = $(guilemoduledir)/gnu/packages/patches
 dist_patch_DATA =						\

gnu/build/activation.scm

@@ -16,9 +16,9 @@
 ;;; You should have received a copy of the GNU General Public License
 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
-(define-module (guix build activation)
+(define-module (gnu build activation)
+  #:use-module (gnu build linux-initrd)
   #:use-module (guix build utils)
-  #:use-module (guix build linux-initrd)
   #:use-module (ice-9 ftw)
   #:use-module (ice-9 match)
   #:use-module (srfi srfi-1)

gnu/build/install.scm

@@ -16,9 +16,8 @@
 ;;; You should have received a copy of the GNU General Public License
 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
-(define-module (guix build install)
+(define-module (gnu build install)
   #:use-module (guix build utils)
-  #:use-module (guix build install)
   #:use-module (srfi srfi-26)
   #:use-module (ice-9 match)
   #:export (install-grub

gnu/build/linux-initrd.scm

@@ -16,7 +16,7 @@
 ;;; You should have received a copy of the GNU General Public License
 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
-(define-module (guix build linux-initrd)
+(define-module (gnu build linux-initrd)
   #:use-module (rnrs io ports)
   #:use-module (rnrs bytevectors)
   #:use-module (system foreign)

gnu/build/vm.scm

@@ -16,10 +16,10 @@
 ;;; You should have received a copy of the GNU General Public License
 ;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
-(define-module (guix build vm)
+(define-module (gnu build vm)
   #:use-module (guix build utils)
-  #:use-module (guix build linux-initrd)
+  #:use-module (gnu build linux-initrd)
-  #:use-module (guix build install)
+  #:use-module (gnu build install)
   #:use-module (ice-9 match)
   #:use-module (ice-9 regex)
   #:use-module (ice-9 rdelim)

gnu/services/base.scm

@@ -29,7 +29,7 @@
   #:use-module ((gnu packages base)
                 #:select (canonical-package glibc))
   #:use-module (gnu packages package-management)
-  #:use-module ((guix build linux-initrd)
+  #:use-module ((gnu build linux-initrd)
                 #:select (mount-flags->bit-mask))
   #:use-module (guix gexp)
   #:use-module (guix monads)

gnu/services/dmd.scm

@@ -35,7 +35,7 @@
   (define modules
     ;; Extra modules visible to dmd.conf.
     '((guix build syscalls)
-      (guix build linux-initrd)
+      (gnu build linux-initrd)
       (guix build utils)))
 
   (mlet %store-monad ((modules  (imported-modules modules))
@@ -50,7 +50,7 @@
           (use-modules (ice-9 ftw)
                        (guix build syscalls)
                        (guix build utils)
-                       ((guix build linux-initrd)
+                       ((gnu build linux-initrd)
                         #:select (check-file-system canonicalize-device-spec)))
 
           (register-services

gnu/system.scm

@@ -362,9 +362,9 @@ alias ll='ls -l'
 stateful part of OS, including user accounts and groups, special directories,
 etc."
   (define %modules
-    '((guix build activation)
+    '((gnu build activation)
-      (guix build utils)
+      (gnu build linux-initrd)
-      (guix build linux-initrd)))
+      (guix build utils)))
 
   (define (service-activations services)
     ;; Return the activation scripts for SERVICES.
@@ -399,7 +399,7 @@ etc."
                       (set! %load-compiled-path
                             (cons #$compiled %load-compiled-path)))
 
-                    (use-modules (guix build activation))
+                    (use-modules (gnu build activation))
 
                     ;; Populate /etc.
                     (activate-etc #$etc)

gnu/system/linux-initrd.scm

@@ -75,7 +75,7 @@ initrd."
   (mlet* %store-monad ((source   (imported-modules modules))
                        (compiled (compiled-modules modules)))
     (define builder
-      ;; TODO: Move most of this code to (guix build linux-initrd).
+      ;; TODO: Move most of this code to (gnu build linux-initrd).
       #~(begin
           (use-modules (guix build utils)
                        (ice-9 pretty-print)
@@ -277,7 +277,7 @@ exception and backtrace!)."
 
   (expression->initrd
    #~(begin
-       (use-modules (guix build linux-initrd)
+       (use-modules (gnu build linux-initrd)
                     (guix build utils)
                     (srfi srfi-26))
 
@@ -293,7 +293,7 @@ exception and backtrace!)."
                     #:volatile-root? '#$volatile-root?))
    #:name "base-initrd"
    #:modules '((guix build utils)
-               (guix build linux-initrd))
+               (gnu build linux-initrd))
    #:to-copy helper-packages
    #:linux linux-libre
    #:linux-modules linux-modules))

gnu/system/vm.scm

@@ -23,7 +23,7 @@
   #:use-module (guix derivations)
   #:use-module (guix packages)
   #:use-module (guix monads)
-  #:use-module ((guix build vm)
+  #:use-module ((gnu build vm)
                 #:select (qemu-command))
   #:use-module (gnu packages base)
   #:use-module (gnu packages guile)
@@ -112,9 +112,9 @@ input tuple.  The output file name is when building for SYSTEM."
                                              (qemu qemu-headless)
                                              (env-vars '())
                                              (modules
-                                              '((guix build vm)
+                                              '((gnu build vm)
-                                                (guix build install)
+                                                (gnu build install)
-                                                (guix build linux-initrd)
+                                                (gnu build linux-initrd)
                                                 (guix build utils)))
                                              (guile-for-build
                                               (%guile-for-build))
@@ -164,7 +164,7 @@ made available under the /xchg CIFS share."
       ;; Code that launches the VM that evaluates EXP.
       #~(begin
           (use-modules (guix build utils)
-                       (guix build vm))
+                       (gnu build vm))
 
           (let ((inputs  '#$(list qemu coreutils))
                 (linux   (string-append #$linux "/bzImage"))
@@ -222,7 +222,7 @@ the image."
    (expression->derivation-in-linux-vm
     name
     #~(begin
-        (use-modules (guix build vm)
+        (use-modules (gnu build vm)
                      (guix build utils))
 
         (let ((inputs

guix/scripts/system.scm

@@ -28,7 +28,7 @@
   #:use-module (guix profiles)
   #:use-module (guix scripts build)
   #:use-module (guix build utils)
-  #:use-module (guix build install)
+  #:use-module (gnu build install)
   #:use-module (gnu system)
   #:use-module (gnu system vm)
   #:use-module (gnu system grub)