tests: Disable grafts by default.

Fixes <http://bugs.gnu.org/22872>.
Reported by myglc2 <myglc2@gmail.com>.

* test-env.in: Define and export 'GUIX_BUILD_OPTIONS'.
* tests/guix-build.sh: When setting 'GUIX_BUILD_OPTIONS', make sure it
contains '--no-grafts'.
* tests/guix-package.sh: Likewise.
* tests/guix-daemon.sh: Add (%graft? #f) in Scheme snippets.

1 files changed, 7 insertions, 3 deletions

diff --git a/tests/guix-daemon.sh b/tests/guix-daemon.sh
index 1f9c8682936..7122eed0e61 100644
--- a/tests/guix-daemon.sh
+++ b/tests/guix-daemon.sh
@@ -1,5 +1,5 @@
 # GNU Guix --- Functional package management for GNU
-# Copyright © 2012, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
+# Copyright © 2012, 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
 #
 # This file is part of GNU Guix.
 #
@@ -27,8 +27,9 @@ guix build --version
 
 drv="`guix build emacs -d`"
 out="`guile -c '                                                                \
-  (use-modules (guix) (gnu packages emacs))                                     \
+  (use-modules (guix) (guix grafts) (gnu packages emacs))                       \
   (define store (open-connection))                                              \
+  (%graft? #f)
   (display (derivation->output-path (package-derivation store emacs)))'`"
 
 hash_part="`basename $out | cut -c 1-32`"
@@ -88,9 +89,12 @@ guix-daemon --no-substitutes --listen="$socket" --disable-chroot	\
 daemon_pid=$!
 
 guile -c "
-  (use-modules (guix) (guix tests) (srfi srfi-34))
+  (use-modules (guix) (guix grafts) (guix tests) (srfi srfi-34))
   (define store (open-connection-for-tests \"$socket\"))
 
+  ;; Disable grafts to avoid building more than needed.
+  (%graft? #f)
+
   (define (build-without-failing drv)
     (lambda (store)
       (guard (c ((nix-protocol-error? c) (values #t store)))