From: Ruben Kerkhof <ruben@rubenkerkhof.com>
Date: Wed, 3 Aug 2016 12:28:29 +0000 (+0200)
Subject: Require a compiler that understands C99
X-Git-Tag: collectd-5.6.0~124^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F1832%2Fhead;p=thirdparty%2Fcollectd.git

Require a compiler that understands C99

Upcoming changes will requires C99 support.

For newer compilers this is the default, but older
compilers needs a flag like -std=gnu99 or -std=c99.
---

diff --git a/configure.ac b/configure.ac
index 15b42d594..b1c83013b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -42,7 +42,9 @@ AC_SYS_LARGEFILE
 #
 # Checks for programs.
 #
-AC_PROG_CC
+AC_PROG_CC_C99([],
+  [AC_MSG_ERROR([No compiler found that supports C99])]
+)
 AC_PROG_CXX
 AC_PROG_CPP
 AC_PROG_EGREP