From 2aecf0bc070f4a37104c4cb233827dbaee06502d Mon Sep 17 00:00:00 2001
From: Arun Raghavan <arun.raghavan@collabora.co.uk>
Date: Tue, 17 Sep 2013 19:13:44 +0530
Subject: [PATCH] build-sys: Fix warning in use-case.h configure check

AC_CHECK_HEADER uses cpp for header checks, so in order for the check to use
the right flags, we need to override CPPFLAGS and not CFLAGS.
---
 configure.ac | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 438fd06f..15f2f997 100644
--- a/configure.ac
+++ b/configure.ac
@@ -770,9 +770,9 @@ AS_IF([test "x$enable_alsa" = "xyes" && test "x$HAVE_ALSA" = "x0"],
 
 AS_IF([test "x$HAVE_ALSA" = "x1"],
     [
-        save_CFLAGS="$CFLAGS"; CFLAGS="$CFLAGS $ASOUNDLIB_CFLAGS"
+        save_CPPFLAGS="$CPPFLAGS"; CPPFLAGS="$CPPFLAGS $ASOUNDLIB_CFLAGS"
         AC_CHECK_HEADERS([use-case.h], HAVE_ALSA_UCM=1, HAVE_ALSA_UCM=0)
-        CFLAGS="$save_CFLAGS"
+        CPPFLAGS="$save_CPPFLAGS"
     ],
     HAVE_ALSA_UCM=0)
 
-- 
2.39.2