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-rw-r--r--src/corelib/global/qglobal.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/corelib/global/qglobal.h b/src/corelib/global/qglobal.h
index 5f2445f930..a8547a3ab8 100644
--- a/src/corelib/global/qglobal.h
+++ b/src/corelib/global/qglobal.h
@@ -386,7 +386,7 @@ QT_END_INCLUDE_NAMESPACE
//defines the type for the WNDPROC on windows
//the alignment needs to be forced for sse2 to not crash with mingw
#if defined(Q_OS_WIN)
-# if defined(Q_CC_MINGW)
+# if defined(Q_CC_MINGW) && !defined(Q_OS_WIN64)
# define QT_ENSURE_STACK_ALIGNED_FOR_SSE __attribute__ ((force_align_arg_pointer))
# else
# define QT_ENSURE_STACK_ALIGNED_FOR_SSE