1 files changed, 35 insertions, 0 deletions

diff --git a/x11-toolkits/qt4-gui/files/patch-git_ccd1b2ee b/x11-toolkits/qt4-gui/files/patch-git_ccd1b2ee
new file mode 100644
index 000000000000..a545ee951984
--- /dev/null
+++ b/x11-toolkits/qt4-gui/files/patch-git_ccd1b2ee
@@ -0,0 +1,35 @@
+commit ccd1b2ee01c193cd157978c1f9f08f87d0f9c94b
+Author: Raphael Kubo da Costa <rakuco@FreeBSD.org>
+Date:   Fri May 10 01:40:23 2013 +0300
+
+    Check that 3DNow! instructions are supported before including mm3dnow.h.
+    
+    Include mm3dnow.h the way we already include the (S)SSE{3,4} and AVX
+    instruction headers: by checking that the compiler is set to support those
+    instructions besides verifying that QT_HAVE_3DNOW evalues to true (which
+    only means the compiler supported them when the build was being configured).
+    
+    This has not caused a problem in most cases so far because GCC protects its
+    mm3dnow.h header with an #ifdef __3dNOW__ (contrary to what it does on, say,
+    pmmintrin.h). clang's mm3dnow.h, on the other hand, does not have that check
+    and can fail if -march is set to, for example, i386 or i486.
+    
+    Not backported from qt5 because qtbase because qsimd_p.h does not include
+    the 3DNow! headers after commit a1b30b49ef09bef2e97b9a0622bf7ad622678fee.
+    
+    Change-Id: I15ab5e936c71c55f89c3f25777ab27fbd262e9cd
+    Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
+
+diff --git a/src/corelib/tools/qsimd_p.h b/src/corelib/tools/qsimd_p.h
+index 87e26e1..6a32e8f 100644
+--- ./src/corelib/tools/qsimd_p.h
++++ ./src/corelib/tools/qsimd_p.h
+@@ -199,7 +199,7 @@ QT_BEGIN_HEADER
+ #endif
+ 
+ // 3D now intrinsics
+-#if defined(QT_HAVE_3DNOW)
++#if defined(QT_HAVE_3DNOW) && (defined(__3dNOW__) || defined(Q_CC_MSVC))
+ #include <mm3dnow.h>
+ #endif
+