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[freetype2] master c37c087: Guard inclusion of emmintrin.h

From: Werner Lemberg
Subject: [freetype2] master c37c087: Guard inclusion of emmintrin.h
Date: Thu, 15 Jul 2021 18:43:53 -0400 (EDT)

branch: master
commit c37c08738260e267764b6d6a8d4469eaa1e6568a
Author: Ben Wagner <>
Commit: Ben Wagner <>

    Guard inclusion of emmintrin.h
    Guard inclusion of emmintrin.h with "#ifdef __SSE2__". The gcc version
    of this header, xmmintrin.h, and mmintrin.h check that the appropriate
    defines are set before defining anything (are internally guarded).
    However the clang versions of these includes are not internally guarded.
    As a result of this, externally guard the inclusion of these headers.
 src/smooth/ftgrays.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/smooth/ftgrays.c b/src/smooth/ftgrays.c
index 7158cd2..5e04ff4 100644
--- a/src/smooth/ftgrays.c
+++ b/src/smooth/ftgrays.c
@@ -1009,7 +1009,9 @@ typedef ptrdiff_t  FT_PtrDist;
+#ifdef __SSE2__
 #include <emmintrin.h>
   static void
   gray_render_conic( RAS_ARG_ const FT_Vector*  control,

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