[PATCH] configure: fix botched quoting

[Stefano Lattarini]

* configure.ac: In the AC_SUBST call on 'VALGRIND_PREBISON'.  Without
this change, when running ./configure, I see:

    ...
    checking for valgrind... valgrind
    ./configure: line 35221: -q: command not found
    checking for Java compiler... gcj -C -fsource=1.3 -ftarget=1.4
    ...

Copyright-paperwork-exempt: yes
Signed-off-by: Stefano Lattarini <address@hidden>
---
 .gitignore   | 2 +-
 configure.ac | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.gitignore b/.gitignore
index a81896f..bfb7caf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,6 +11,7 @@
 /INSTALL
 /Makefile
 /Makefile.in
+/README-release
 /_*
 /a.exe
 /a.out
@@ -31,4 +32,3 @@
 /patches
 /releases
 /stamp-h*
-/README-release
diff --git a/configure.ac b/configure.ac
index cf42d2c..328d929 100644
--- a/configure.ac
+++ b/configure.ac
@@ -177,7 +177,7 @@ case $VALGRIND:$host_os in
     # VALGRIND+=' 
--suppressions=$(abs_top_srcdir)/build-aux/darwin11.4.0.valgrind'
     VALGRIND=;;
   *:*)
-    AC_SUBST([VALGRIND_PREBISON], [$VALGRIND -q]);;
+    AC_SUBST([VALGRIND_PREBISON], ["$VALGRIND -q"]);;
 esac
 
 AM_MISSING_PROG([AUTOM4TE], [autom4te])
-- 
1.7.10.2.1067.g553d16e