From 796882bcc5314c0bb095fcad0a6ffa30a6122bae Mon Sep 17 00:00:00 2001
From: Bent Bisballe Nyeng <deva@aasimon.org>
Date: Sat, 10 Dec 2016 17:09:21 +0100
Subject: Check for -ffloat-store before using it in dgreftest.

---
 configure.ac               | 19 +++++++++++++++++++
 test/dgreftest/Makefile.am |  2 +-
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 7ee1ab5..38e3080 100644
--- a/configure.ac
+++ b/configure.ac
@@ -61,6 +61,25 @@ AC_COMPILE_IFELSE(
 )
 AC_LANG_POP([C++])
 
+dnl ===========================
+dnl Check for -ffloat-store support
+dnl ===========================
+AC_LANG_PUSH([C++])
+TMP_CXXFLAGS="$CXXFLAGS"
+CXXFLAGS="-Wall -Werror -ffloat-store"
+AC_MSG_CHECKING([whether CXX supports -ffloat-store])
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
+	[AC_MSG_RESULT([yes])
+	 FLOAT_STORE="-ffloat-store"
+	],
+	[AC_MSG_RESULT([no])
+	 FLOAT_STORE=""
+	]
+)
+AC_SUBST(FLOAT_STORE)
+CXXFLAGS="$TMP_CXXFLAGS"
+AC_LANG_POP([C++])
+
 dnl ======================
 dnl Init pkg-config
 dnl ======================
diff --git a/test/dgreftest/Makefile.am b/test/dgreftest/Makefile.am
index 06c167b..7e23839 100644
--- a/test/dgreftest/Makefile.am
+++ b/test/dgreftest/Makefile.am
@@ -13,7 +13,7 @@ dgreftest_LDFLAGS =
 dgreftest_CXXFLAGS = $(SNDFILE_CXXFLAGS) $(PTHREAD_CFLAGS) $(EXPAT_CFLAGS) \
 	-I$(top_srcdir)/include -I$(top_srcdir)/src \
 	-I$(top_srcdir)/hugin -DWITH_HUG_MUTEX -DWITH_HUG_FILTER \
-	$(JACK_CFLAGS) $(SSEFLAGS) $(SMF_CFLAGS) -ffloat-store
+	$(JACK_CFLAGS) $(SSEFLAGS) $(SMF_CFLAGS) $(FLOAT_STORE)
 
 dgreftest_CFLAGS = -DWITH_HUG_MUTEX -DWITH_HUG_FILTER
 
-- 
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