[mutter] Add -Wno-error=deprecated declarations

[Owen Taylor <otaylor src gnome org>]

commit 2e63de5c0a7c3d9d64908d55ec99aaa5f50ff6b9
Author: Owen W. Taylor <otaylor fishsoup net>
Date:   Tue Feb 7 18:20:14 2012 -0500

    Add -Wno-error=deprecated declarations
    
    Even with --enable-compile-warnings=error, avoid erroring out on deprecations
    for the moment, since we are hitting many Clutter deprecations and some are
    hard to fix.

 configure.in |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.in b/configure.in
index da8e1d6..465daeb 100644
--- a/configure.in
+++ b/configure.in
@@ -470,7 +470,7 @@ if test "$enable_compile_warnings" != no ; then
     if test "$enable_compile_warnings" = error; then
       case " $CFLAGS " in
       *[\ \	]-Werror[\ \	]*) ;;
-      *) CFLAGS="$CFLAGS -Werror" ;;
+      *) CFLAGS="$CFLAGS -Werror -Wno-error=deprecated-declarations" ;;
       esac
     fi
   fi