configure: Ask for a modern C compiler

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

diff --git a/configure.ac b/configure.ac
index f1c95471c0c288a9d51df9bd20c4edc3801cb415..7649c9d52996a2986b825628b9196f05b455b613 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -97,11 +97,7 @@ PKG_PROG_PKG_CONFIG
 m4_pattern_forbid([^_?PKG_[A-Z_]+$],[*** pkg.m4 missing, please install pkg-config])
 
 # C Compiler
-AC_PROG_CC
-AC_PROG_CC_C99
-AC_PROG_CC_C_O
-AC_PROG_GCC_TRADITIONAL
-AC_OPENMP
+AC_PROG_CC_STDC
 
 CC_CHECK_FLAGS_APPEND([with_cflags], [CFLAGS], [\
        -pipe \