1 files changed, 18 insertions, 0 deletions
diff --git a/m4/mpd_check_cflag.m4 b/m4/mpd_check_cflag.m4
new file mode 100644
index 000000000..05682f611
--- /dev/null
+++ b/m4/mpd_check_cflag.m4
@@ -0,0 +1,18 @@
+AC_DEFUN([MPD_CHECK_FLAG],[
+  var=`echo "$1" | tr "-" "_"`
+  AC_CACHE_CHECK([whether the C compiler accepts $1],
+    [mpd_check_cflag_$var],[
+    save_CFLAGS="$CFLAGS"
+    CFLAGS="$CFLAGS $1"
+    AC_COMPILE_IFELSE([
+     int main(void) { return 0; }
+     ], [ eval "mpd_check_cflag_$var=yes"
+     ], [ eval "mpd_check_cflag_$var=no" ])
+    CFLAGS="$save_CFLAGS"
+  ])
+  if eval "test x`echo '$mpd_check_cflag_'$var` = xyes"
+  then
+    MPD_CFLAGS="$MPD_CFLAGS $1"
+  fi
+  ])
+])