[gcab] Fix make distcheck

[Marc-Andre Lureau <malureau src gnome org>]

commit 6dbe7d134c5e849458ee76c99c460d5326e7dde1
Author: Marc-André Lureau <marcandre lureau gmail com>
Date:   Tue Oct 7 21:07:03 2014 +0200

    Fix make distcheck
    
    Test environment can't run in srcdir, as it may be read-only, notably
    during dist-check:
    
    make[6]: Entering directory
    `/home/elmarco/src/gcab/gcab-0.4.46-568b/_build/docs/reference'
    ln -s /usr/bin/gtkdoc-check doccheck
    ../../../build-aux/test-driver: line 95: doccheck.log: Permission denied
    FAIL: doccheck
    ../../../build-aux/test-driver: line 114: doccheck.trs: Permission
    denied
    ../../../build-aux/test-driver: line 115: doccheck.trs: Permission
    denied
    ../../../build-aux/test-driver: line 116: doccheck.trs: Permission
    denied
    ../../../build-aux/test-driver: line 117: doccheck.trs: Permission
    denied
    make[6]: *** [doccheck.log] Error 1

 docs/reference/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/docs/reference/Makefile.am b/docs/reference/Makefile.am
index 3f52e4c..5daf64b 100644
--- a/docs/reference/Makefile.am
+++ b/docs/reference/Makefile.am
@@ -37,7 +37,7 @@ doccheck: $(GTKDOC_CHECK)
 
 MOSTLYCLEANFILES = doccheck
 
-TESTS_ENVIRONMENT = cd $(srcdir) &&                                    \
+TESTS_ENVIRONMENT =                                                    \
   DOC_MODULE=$(DOC_MODULE) DOC_MAIN_SGML_FILE=$(DOC_MAIN_SGML_FILE)    \
   SRCDIR=$(abs_srcdir) BUILDDIR=$(abs_builddir)
 TESTS = doccheck