From 499e5564a79faece95f341e0c185543dc19de8a6 Mon Sep 17 00:00:00 2001
From: Patrick McDermott <pj@pehjota.net>
Date: Wed, 01 Nov 2017 14:55:12 -0400
Subject: configure.ac: Use AX_CFLAGS_WARN_ALL() instead of -Wall check

---
(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 67cccf2..f3a09f4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -46,13 +46,9 @@ AX_CHECK_COMPILE_FLAG([-std=c11], [CFLAGS="${CFLAGS} -std=c11"], [
 #   * etc.
 # Cf. <https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html> and
 # <http://git.pehjota.net/overworld-rpg/overworld-rpg.git/tree/configure.ac#n60>
-m4_foreach_w([WARN],
-	[
-		-Wpedantic -Wall -Wextra
-	], [
-		AX_CHECK_COMPILE_FLAG([WARN], [CFLAGS="${CFLAGS} WARN"], [], [])
-	]
-)
+AX_CFLAGS_WARN_ALL()  dnl Adds -Wall or equivalent
+AX_CHECK_COMPILE_FLAG([-Wpedantic], [AX_APPEND_FLAG([-Wpedantic])])
+AX_CHECK_COMPILE_FLAG([-Wextra],    [AX_APPEND_FLAG([-Wextra])])
 
 AX_CHECK_COMPILE_FLAG([-fdiagnostics-color=auto],
 	[CFLAGS="${CFLAGS} -fdiagnostics-color=auto"], [], [])
--
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