[cogl/cogl-1.22] build: Add -Werror=maybe-uninitialized

[Emmanuele Bassi <ebassi src gnome org>]

commit f01c28259f33d089b0c3b313facc2111d3e7ce16
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Thu Sep 3 08:59:52 2015 +0100

    build: Add -Werror=maybe-uninitialized
    
    Should help us catch more edge cases.

 configure.ac |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 03fd48a..2d2cadd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -375,7 +375,8 @@ MAINTAINER_COMPILER_FLAGS="-Wall -Wcast-align -Wformat -Wformat-security
                            -Werror=uninitialized -Werror=no-strict-aliasing
                            -Werror=empty-body -Werror=init-self -Werror=undef
                            -Werror=declaration-after-statement -Werror=vla
-                           -Werror=pointer-arith -Werror=missing-declarations"
+                           -Werror=pointer-arith -Werror=missing-declarations
+                           -Werror=maybe-uninitialized"
 
 AS_CASE(
   [$enable_maintainer_flags],