From e7b11dd328d9db82b49cde795944a721beaf0112 Mon Sep 17 00:00:00 2001
From: Stefan Schmidt <stefan@osg.samsung.com>
Date: Wed, 10 May 2017 13:22:22 +0200
Subject: [PATCH] build: make sure we check for c99 during configure

We have some c99 code in expedite (loop initial declarations) and some
setups bail out when trying to use c89 here. EFL is already enforcing
c99 and compilers have catched up a long time ago.

Fixes T5440
---
 configure.ac | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/configure.ac b/configure.ac
index 8e59499..b37c8b6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -69,9 +69,14 @@ EFL_ENABLE_BETA_API_SUPPORT
 
 AC_HEADER_STDC
 AC_C_CONST
+AC_PROG_CC_C99
 AM_PROG_CC_C_O
 AC_C___ATTRIBUTE__
 
+if test "x${ac_cv_prog_cc_c99}" = "xno" ; then
+   AC_MSG_ERROR([expedite requires a c99-capable compiler])
+fi
+
 WIN32_CFLAGS=""
 case "$host_os" in
    cegcc*)