diff --git a/configure.ac b/configure.ac
index cfbeb1d1bef9f83b9c86f78d48fe8f2744b2dc81..d0fec6a26141a4e09a682764b1ae7f545ca40584 100644 (file)
--- a/configure.ac
+++ b/configure.ac
dnl which flags does the compiler support?
if test "x$GCC" = "xyes"; then
- for flag in -fno-strict-aliasing -Wall -std=c99 -pedantic -Wundef -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -Winline -Wold-style-definition -W; do
+ for flag in -fno-strict-aliasing -Wall -std=gnu99 -pedantic -Wundef -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -Winline -Wold-style-definition -W; do
oCFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $flag"
cachename=rd_cv_gcc_flag_`echo $flag|sed 's/[[^A-Za-z]]/_/g'`