From f8053a3a4bf10648df968264d8cc9519a0e0b45e Mon Sep 17 00:00:00 2001
From: Michael Jones <jonesmz@jonesmz.com>
Date: Sun, 9 Oct 2016 20:51:46 -0500
Subject: [PATCH] configure: Enable C99 language standard

Also disable some obsolete warnings.

Signed-off-by: Michael Jones <jonesmz@jonesmz.com>
Reviewed-by: Jan Friesse <jfriesse@redhat.com>
---
 configure.ac | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index fc6df13b..cd1dcc54 100644
--- a/configure.ac
+++ b/configure.ac
@@ -81,6 +81,10 @@ fi
 sinclude(corosync-default.m4)
 
 AC_PROG_CC
+AC_PROG_CC_C99
+if test "x$ac_cv_prog_cc_c99" = "xno"; then
+	AC_MSG_ERROR(["C99 support is required"])
+fi
 AC_PROG_INSTALL
 AC_PROG_LN_S
 AC_PROG_MAKE_SET
@@ -561,7 +565,6 @@ WARNLIST="
 	missing-prototypes
 	missing-declarations
 	strict-prototypes
-	declaration-after-statement
 	pointer-arith
 	write-strings
 	cast-align
@@ -572,7 +575,6 @@ WARNLIST="
 	format-nonliteral
 	no-long-long
 	unsigned-char
-	gnu89-inline
 	no-strict-aliasing
 	"
 
-- 
2.39.5