From: Mark Wielaard <mark@klomp.org>
Date: Wed, 17 Jan 2018 12:30:35 +0000 (+0100)
Subject: Make sure we can compile in C99 mode.
X-Git-Tag: VALGRIND_3_14_0~177
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=29cc9fc0ed871d8347a9e5f8194473efa870231b;p=thirdparty%2Fvalgrind.git

Make sure we can compile in C99 mode.

Use AC_PROG_CC_C99 in configure.ac to make sure the compiler we use is
always in C99 mode. If we detect the compiler doesn't support C99 then
error out.
---

diff --git a/configure.ac b/configure.ac
index 3cc9732eca..901c595021 100644
--- a/configure.ac
+++ b/configure.ac
@@ -100,6 +100,11 @@ else
 fi
 rm $tmpfile
 
+# Make sure we can compile in C99 mode.
+AC_PROG_CC_C99
+if test "$ac_cv_prog_cc_c99" == "no"; then
+    AC_MSG_ERROR([Valgrind relies on a C compiler supporting C99])
+fi
 
 # We don't want gcc < 3.0
 AC_MSG_CHECKING([for a supported version of gcc])