[clutter] build: Increase the anal-retentiveness of the maintainer flags

[Emmanuele Bassi <ebassi src gnome org>]

commit 90e5088a512e723c41dd59aeaace7e4f87ca14ac
Author: Emmanuele Bassi <ebassi linux intel com>
Date:   Wed Mar 7 12:35:57 2012 +0000

    build: Increase the anal-retentiveness of the maintainer flags
    
    The new rules have already caught a couple of issues.

 configure.ac |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 97c7116..ddacfcc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -913,9 +913,11 @@ AC_ARG_ENABLE([maintainer-flags],
 MAINTAINER_COMPILER_FLAGS="$MAINTAINER_COMPILER_FLAGS
                            -Wall -Wcast-align -Wuninitialized
                            -Wno-strict-aliasing -Wempty-body -Wformat
-                           -Wformat-security -Winit-self
+                           -Wformat-security -Wformat-nonliteral -Winit-self
                            -Wdeclaration-after-statement -Wvla
-                           -Wpointer-arith"
+                           -Wpointer-arith -Wmissing-declarations
+                           -Waggregate-returns -Wcast-align
+                           -Wredundant-decls"
 
 AS_CASE([$enable_maintainer_flags],
         [yes],