[libnotify] Add more warnings to build
- From: William Jon McCann <mccann src gnome org>
- To: svn-commits-list gnome org
- Cc:
- Subject: [libnotify] Add more warnings to build
- Date: Sat, 9 Jan 2010 18:41:02 +0000 (UTC)
commit fcec1feb2c4337459e471d868bb5c661ae8967fc
Author: William Jon McCann <jmccann redhat com>
Date: Sat Jan 9 13:37:14 2010 -0500
Add more warnings to build
configure.ac | 42 +++++++++++++++++++++++++++++++++++++++---
1 files changed, 39 insertions(+), 3 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 4f7b847..8feb553 100644
--- a/configure.ac
+++ b/configure.ac
@@ -118,9 +118,45 @@ dnl ################################################################
GTK_DOC_CHECK([1.4])
-dnl # Use wall if we have GCC
-if test "x$GCC" = "xyes"; then
- CFLAGS="$CFLAGS -Wall"
+# Turn on the additional warnings last
+
+AC_ARG_ENABLE(more-warnings,
+ AS_HELP_STRING([--enable-more-warnings],
+ [Maximum compiler warnings]),
+ set_more_warnings="$enableval",[
+ if test -d $srcdir/.git; then
+ set_more_warnings=yes
+ else
+ set_more_warnings=no
+ fi])
+
+AC_MSG_CHECKING(for more warnings)
+if test "$GCC" = "yes" -a "$set_more_warnings" != "no"; then
+ AC_MSG_RESULT(yes)
+ CFLAGS="\
+ -Wall \
+ -Wchar-subscripts -Wmissing-declarations -Wmissing-prototypes \
+ -Wnested-externs -Wpointer-arith \
+ -Wcast-align -Wsign-compare -Wp,-D_FORTIFY_SOURCE=2 \
+ $CFLAGS"
+
+ for option in -Wno-strict-aliasing -Wno-sign-compare; do
+ SAVE_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS $option"
+ AC_MSG_CHECKING([whether gcc understands $option])
+ AC_TRY_COMPILE([], [],
+ has_option=yes,
+ has_option=no,)
+ if test $has_option = no; then
+ CFLAGS="$SAVE_CFLAGS"
+ fi
+ AC_MSG_RESULT($has_option)
+ unset has_option
+ unset SAVE_CFLAGS
+ done
+ unset option
+else
+ AC_MSG_RESULT(no)
fi
AC_SUBST(CFLAGS)
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