darktable: patch to workaround a gcc-4.7.3 issue with -mtune=generic.

srcpkgs/darktable/patches/mmsetflush-gcc473-mtune-generic.patch

@@ -0,0 +1,16 @@
+Comment _MM_SET_FLUSH_ZERO_MODE for now.
+
+gcc-4.7.3 with -mtune=generic uses STMXCSR/VSTMXCSR instructions which are
+only available in Sandy Bridge CPUs, thus causes a SIGILL on AMD CPUs.
+
+--- src/common/darktable.c.orig	2014-05-08 11:42:15.844554271 +0200
++++ src/common/darktable.c	2014-05-08 11:43:00.724288778 +0200
+@@ -363,7 +363,7 @@ int dt_init(int argc, char *argv[], cons
+ #endif
+ 
+   // make everything go a lot faster.
+-  _MM_SET_FLUSH_ZERO_MODE(_MM_FLUSH_ZERO_ON);
++  //_MM_SET_FLUSH_ZERO_MODE(_MM_FLUSH_ZERO_ON);
+ #if !defined __APPLE__ && !defined __WIN32__
+   _dt_sigsegv_old_handler = signal(SIGSEGV,&_dt_sigsegv_handler);
+ #endif

srcpkgs/darktable/template

@@ -1,7 +1,7 @@
 # Template file for 'darktable'
 pkgname=darktable
 version=1.4.2
-revision=4
+revision=5
 build_style=cmake
 maintainer="Carlo Dormeletti <carlo.dormeletti@email.it>"
 homepage="http://www.darktable.org/"
@@ -17,12 +17,6 @@ makedepends="gtk+-devel glib-devel exiv2-devel lcms2-devel
 distfiles="${SOURCEFORGE_SITE}/${pkgname}/1.4/${pkgname}-${version}.tar.xz"
 checksum="c1311a6e336007b85d21647652ebec3e26840248a968eab04ab5f0a56c2e0709"
 
-# This needs to be built with SSE, otherwise some CPUs might crash with
-# an ilegal instruction (vstmxcsr). Notably most AMD CPUs with -mtune=generic.
-#
-# Let's assume this has been fixed in recent gcc versions and just force SSE.
-CFLAGS="-msse"
-
 post_install() {
 	mv ${DESTDIR}/usr/lib/darktable/libdarktable.so ${DESTDIR}/usr/lib/
 }