From cd7c7a74b7089925beb167e53ee3150f122ae52e Mon Sep 17 00:00:00 2001
From: Alexander Couzens <lynxis@fe80.eu>
Date: Fri, 1 Jan 2021 17:04:23 +0100
Subject: [PATCH] configure.ac: define a c standard instead of using the
 compilers default

Change-Id: I9867adbed211db0a7b42ac3557f56c3042a67936
---
 configure.ac | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/configure.ac b/configure.ac
index 0c8a73ff9..f1a4ed480 100644
--- a/configure.ac
+++ b/configure.ac
@@ -39,6 +39,9 @@ m4_ifdef([AX_CHECK_COMPILE_FLAG], [], [
 	AC_MSG_ERROR([Please install autoconf-archive; re-run 'autoreconf -fi' for it to take effect.])
 	])
 
+dnl use a defined standard across all builds and don't depend on compiler default
+CFLAGS="$CFLAGS -std=gnu11"
+
 dnl checks for libraries
 AC_SEARCH_LIBS([dlopen], [dl dld], [LIBRARY_DL="$LIBS";LIBS=""])
 AC_SUBST(LIBRARY_DL)