From 2926d24478891dfc57d8e8e14535990a27757599 Mon Sep 17 00:00:00 2001
From: KO Myung-Hun <komh@chollian.net>
Date: Tue, 22 Jul 2014 10:48:36 +0900
Subject: [PATCH] Makefile: add -mstackrealign to CFLAGS on OS/2

This prevents SIGSEGV of test_libvpx.

Change-Id: I788743841469f4141bc8d29b1d1a8683cb00655c
---
 build/make/Makefile | 30 ++++++++++++++++++------------
 1 file changed, 18 insertions(+), 12 deletions(-)

diff --git a/build/make/Makefile b/build/make/Makefile
index 9efa0ec02..ed90397f0 100644
--- a/build/make/Makefile
+++ b/build/make/Makefile
@@ -118,20 +118,26 @@ testdata::
 utiltest:
 
 # Add compiler flags for intrinsic files
+ifeq ($(TOOLCHAIN), x86-os2-gcc)
+STACKREALIGN=-mstackrealign
+else
+STACKREALIGN=
+endif
+
 $(BUILD_PFX)%_mmx.c.d: CFLAGS += -mmmx
 $(BUILD_PFX)%_mmx.c.o: CFLAGS += -mmmx
-$(BUILD_PFX)%_sse2.c.d: CFLAGS += -msse2
-$(BUILD_PFX)%_sse2.c.o: CFLAGS += -msse2
-$(BUILD_PFX)%_sse3.c.d: CFLAGS += -msse3
-$(BUILD_PFX)%_sse3.c.o: CFLAGS += -msse3
-$(BUILD_PFX)%_ssse3.c.d: CFLAGS += -mssse3
-$(BUILD_PFX)%_ssse3.c.o: CFLAGS += -mssse3
-$(BUILD_PFX)%_sse4.c.d: CFLAGS += -msse4.1
-$(BUILD_PFX)%_sse4.c.o: CFLAGS += -msse4.1
-$(BUILD_PFX)%_avx.c.d: CFLAGS += -mavx
-$(BUILD_PFX)%_avx.c.o: CFLAGS += -mavx
-$(BUILD_PFX)%_avx2.c.d: CFLAGS += -mavx2
-$(BUILD_PFX)%_avx2.c.o: CFLAGS += -mavx2
+$(BUILD_PFX)%_sse2.c.d: CFLAGS += -msse2 $(STACKREALIGN)
+$(BUILD_PFX)%_sse2.c.o: CFLAGS += -msse2 $(STACKREALIGN)
+$(BUILD_PFX)%_sse3.c.d: CFLAGS += -msse3 $(STACKREALIGN)
+$(BUILD_PFX)%_sse3.c.o: CFLAGS += -msse3 $(STACKREALIGN)
+$(BUILD_PFX)%_ssse3.c.d: CFLAGS += -mssse3 $(STACKREALIGN)
+$(BUILD_PFX)%_ssse3.c.o: CFLAGS += -mssse3 $(STACKREALIGN)
+$(BUILD_PFX)%_sse4.c.d: CFLAGS += -msse4.1 $(STACKREALIGN)
+$(BUILD_PFX)%_sse4.c.o: CFLAGS += -msse4.1 $(STACKREALIGN)
+$(BUILD_PFX)%_avx.c.d: CFLAGS += -mavx $(STACKREALIGN)
+$(BUILD_PFX)%_avx.c.o: CFLAGS += -mavx $(STACKREALIGN)
+$(BUILD_PFX)%_avx2.c.d: CFLAGS += -mavx2 $(STACKREALIGN)
+$(BUILD_PFX)%_avx2.c.o: CFLAGS += -mavx2 $(STACKREALIGN)
 
 $(BUILD_PFX)%.c.d: %.c
 	$(if $(quiet),@echo "    [DEP] $@")