From ab27e4c68b8a5cf89e8534f3a5011083c558139a Mon Sep 17 00:00:00 2001
From: rofl0r <rofl0r@users.noreply.github.com>
Date: Sun, 6 Sep 2020 16:58:28 +0100
Subject: configure.ac: check for all "desired" CFLAGS at once

in case they're all accepted, which would be the case with any
halfways recent GCC, we save a lot of time over testing each flag
sequentially.
---
 configure.ac | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index a0503a4..782ee06 100644
--- a/configure.ac
+++ b/configure.ac
@@ -150,9 +150,15 @@ if test -n "${MAINTAINER_MODE_FALSE}"; then
    DESIRED_FLAGS="-Werror $DESIRED_FLAGS"
 fi
 
+all_desired_work=false
+AS_COMPILER_FLAG([$DESIRED_FLAGS], [all_desired_work=true])
+if $all_desired_work ; then
+    CFLAGS="$CFLAGS $DESIRED_FLAGS"
+else
 for flag in $DESIRED_FLAGS; do
   AS_COMPILER_FLAG([$flag], [CFLAGS="$CFLAGS $flag"])
 done
+fi
 
 dnl Disable debugging if it's not specified
 if test x"$debug_enabled" != x"yes" ; then
-- 
cgit v1.2.3