From 5c06992e627154c3d590e890b5b7008df9384eb4 Mon Sep 17 00:00:00 2001
From: Simon McVittie <simon.mcvittie@collabora.co.uk>
Date: Thu, 24 Feb 2011 15:16:26 +0000
Subject: Use square brackets (m4 quoting) instead of changequote

For more details, see:
http://www.gnu.org/software/autoconf/manual/html_node/Changequote-is-Evil.html
---
 configure.in | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/configure.in b/configure.in
index b043018f..049a7c21 100644
--- a/configure.in
+++ b/configure.in
@@ -1129,8 +1129,10 @@ if test x$dbus_win != xyes -a x$dbus_cygwin != xyes -a x$USE_MAINTAINER_MODE = x
   fi
 fi
 
-if test "x$GCC" = "xyes"; then
-  changequote(,)dnl
+dnl This whole "if" block is in m4 quotes ([]) because it uses them
+dnl for character ranges internally. m4 macros cannot be used inside this
+dnl block.
+[if test "x$GCC" = "xyes"; then
   case " $CFLAGS " in
   *[\ \	]-Wall[\ \	]*) ;;
   *) CFLAGS="$CFLAGS -Wall" ;;
@@ -1272,8 +1274,7 @@ if test "x$GCC" = "xyes"; then
     *) CFLAGS="$CFLAGS -pedantic" ;;
     esac
   fi
-  changequote([,])dnl
-fi
+fi]
 
 AC_SUBST(PIC_CFLAGS)
 AC_SUBST(PIC_LDFLAGS)
-- 
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