From 7d98fb19dc2b7c3af289b0a7c1a0db68e7fea8c9 Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Mon, 15 Sep 2008 12:27:28 +0200
Subject: enable gcc warnings

Enable all useful warnings which were also enabled in MPD.  Steal
m4/mpd_check_cflag.m4 from MPD.
---
 configure.ac | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 3ffc87009..16a13571d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -206,9 +206,24 @@ AC_ARG_ENABLE([debug],
 	      [enable_debug=no])
 AC_MSG_RESULT([$enable_debug])
 if test "x$enable_debug" = "xyes" ; then
-   CFLAGS="$CFLAGS -Wall -g -DDEBUG"
+   CFLAGS="$CFLAGS -g -DDEBUG"
 fi
 
+dnl CFLAGS
+
+AC_SUBST(AM_CFLAGS)
+
+CHECK_CFLAG([-Wall])
+CHECK_CFLAG([-Wextra])
+CHECK_CFLAG([-Wno-deprecated-declarations])
+CHECK_CFLAG([-Wmissing-prototypes])
+CHECK_CFLAG([-Wdeclaration-after-statement])
+CHECK_CFLAG([-Wshadow])
+CHECK_CFLAG([-Wpointer-arith])
+CHECK_CFLAG([-Wstrict-prototypes])
+CHECK_CFLAG([-Wcast-qual])
+CHECK_CFLAG([-Wwrite-strings])
+
 dnl Optional screen - help screen
 #AC_MSG_CHECKING([whether to include the help screen])
 #AC_ARG_ENABLE([help-screen], 
-- 
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