[ostree] Make more compiler warnings into errors

[Colin Walters <walters src gnome org>]

commit 667c3bcb102bac718fde223efa3f18b7edf71bdb
Author: Colin Walters <walters verbum org>
Date:   Wed Jun 27 20:26:08 2012 -0400

    Make more compiler warnings into errors
    
    In particular, I want -Werror=format=2 to catch format string bugs.

 configure.ac |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index b7a41b5..f419296 100644
--- a/configure.ac
+++ b/configure.ac
@@ -13,7 +13,12 @@ AM_PROG_CC_C_O
 
 changequote(,)dnl
 if test "x$GCC" = "xyes"; then
-  WARN_CFLAGS="-Wall -Werror=missing-prototypes"
+  WARN_CFLAGS="-Wall -Wstrict-prototypes -Werror=missing-prototypes \
+		-Werror=implicit-function-declaration \
+		-Werror=pointer-arith -Werror=init-self -Werror=format=2 \
+		-Werror=format-security \
+		-Werror=missing-include-dirs -Werror=aggregate-return \
+		-Werror=declaration-after-statement"
 fi
 changequote([,])dnl
 AC_SUBST(WARN_CFLAGS)