From cb51f271b26c6abc76d415553f202bc5139273ca Mon Sep 17 00:00:00 2001
From: Alan Coopersmith <alan.coopersmith@oracle.com>
Date: Sat, 3 Aug 2013 20:22:25 -0700
Subject: [PATCH] Enable warnings for pre-C89 style definitions for gcc &
 Solaris Studio

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
---
 configure.ac | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 8cc5775..482f85b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -128,12 +128,12 @@ xcbincludedir='${includedir}/xcb'
 AC_SUBST(xcbincludedir)
 
 if  test "x$GCC" = xyes ; then
-    CWARNFLAGS="-Wall -pedantic -Wpointer-arith \
+    CWARNFLAGS="-Wall -pedantic -Wpointer-arith -Wold-style-definition \
 		-Wstrict-prototypes -Wmissing-declarations -Wnested-externs"
 else
     AC_CHECK_DECL([__SUNPRO_C], [SUNCC="yes"], [SUNCC="no"])
     if test "x$SUNCC" = "xyes"; then
-	CWARNFLAGS="-v"
+	CWARNFLAGS="-v -fd"
     fi
 fi
 AC_SUBST(CWARNFLAGS)
-- 
2.34.1