--- a/3rdparty/libpng/pngpriv.h
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+++ b/3rdparty/libpng/pngpriv.h
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@@ -214,7 +214,7 @@
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# endif
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#endif
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-#if PNG_INTEL_SSE_OPT > 0
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+#if defined(PNG_INTEL_SSE_OPT) && PNG_INTEL_SSE_OPT > 0
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# ifndef PNG_INTEL_SSE_IMPLEMENTATION
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# if defined(__SSE4_1__) || defined(__AVX__)
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/* We are not actually using AVX, but checking for AVX is the best
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@@ -547,7 +547,7 @@
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/* Memory model/platform independent fns */
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#ifndef PNG_ABORT
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-# ifdef _WINDOWS_
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+# if defined(_WINDOWS_) && !defined(WINRT)
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# define PNG_ABORT() ExitProcess(0)
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# else
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# define PNG_ABORT() abort()
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@@ -1340,7 +1340,7 @@ PNG_INTERNAL_FUNCTION(void,png_read_filter_row_paeth4_vsx,(png_row_infop
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row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
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#endif
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-#if PNG_INTEL_SSE_IMPLEMENTATION > 0
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+#if defined(PNG_INTEL_SSE_IMPLEMENTATION) && PNG_INTEL_SSE_IMPLEMENTATION > 0
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PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub3_sse2,(png_row_infop
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row_info, png_bytep row, png_const_bytep prev_row),PNG_EMPTY);
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PNG_INTERNAL_FUNCTION(void,png_read_filter_row_sub4_sse2,(png_row_infop
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@@ -2099,7 +2099,7 @@ PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_msa,
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(png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
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#endif
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-# if PNG_INTEL_SSE_IMPLEMENTATION > 0
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+# if defined(PNG_INTEL_SSE_IMPLEMENTATION) && PNG_INTEL_SSE_IMPLEMENTATION > 0
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PNG_INTERNAL_FUNCTION(void, png_init_filter_functions_sse2,
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(png_structp png_ptr, unsigned int bpp), PNG_EMPTY);
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# endif
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