From 94ad6724ba5c0136d385cc0f052db636bf99a86c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <slomo@circular-chaos.org>
Date: Sat, 21 Sep 2013 18:46:29 +0200
Subject: goom: Fix MMX assembly compilation with clang

clang does not want or need a clobber list for emms:
error: clobbers must be last on the x87 stack

Patch taken from the FreeBSD ports, provided by
Dan McGregor <dan.mcgregor@usask.ca>
---
Adapted from here:
https://cgit.freedesktop.org/gstreamer/gst-plugins-good/commit/?id=94ad6724ba5c0136d385cc0f052db636bf99a86c
---
 src/mmx.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/mmx.h b/src/mmx.h
index 3fae26b..2649e10 100644
--- a/src/mmx.h
+++ b/src/mmx.h
@@ -711,17 +711,29 @@ void zoom_filter_xmmx (int prevX, int prevY, Pixel *expix1, Pixel *expix2,
 */
 #ifdef MMX_TRACE
 
+#ifdef __clang__
+#define emms() \
+ { \
+  printf("emms()\n"); \
+  __asm__ __volatile__ ("emms"); \
+ }
+#else
 #define emms() \
  { \
   printf("emms()\n"); \
   __asm__ __volatile__ ("emms" \
                         "st(1)","st(2)","st(3)","st(4)","st(5)","st(6)","st(7)"); \
  }
+#endif
 
 #else
 
+#ifdef __clang__
+#define emms() __asm__ __volatile__ ("emms")
+#else
 #define emms() __asm__ __volatile__ ("emms"::: \
                       "st(1)","st(2)","st(3)","st(4)","st(5)","st(6)","st(7)")
+#endif
 
 #endif
 
-- 
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