Merge pull request #1832 from rubenk/check-for-c99-compiler

Require a compiler that understands C99

diff --git a/configure.ac b/configure.ac
index 15b42d5..b1c8301 100644 (file)
--- 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