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diff --git a/src/3rdparty/libpng/pngpriv.h b/src/3rdparty/libpng/pngpriv.h
index 583c26f9bd..2ab9b70d73 100644
--- a/src/3rdparty/libpng/pngpriv.h
+++ b/src/3rdparty/libpng/pngpriv.h
@@ -23,6 +23,12 @@
#ifndef PNGPRIV_H
#define PNGPRIV_H
+#ifdef _MSC_VER
+# ifndef _CRT_SECURE_NO_DEPRECATE
+# define _CRT_SECURE_NO_DEPRECATE
+# endif
+#endif
+
/* Feature Test Macros. The following are defined here to ensure that correctly
* implemented libraries reveal the APIs libpng needs to build and hide those
* that are not needed and potentially damaging to the compilation.
@@ -308,6 +314,11 @@
# endif
#endif /* Setting PNG_BUILD_DLL if required */
+/* Modfied for usage in Qt: Do not export the libpng APIs */
+#ifdef PNG_BUILD_DLL
+#undef PNG_BUILD_DLL
+#endif
+
/* See pngconf.h for more details: the builder of the library may set this on
* the command line to the right thing for the specific compilation system or it
* may be automagically set above (at present we know of no system where it does
@@ -546,6 +557,9 @@
#if defined(WIN32) || defined(_Windows) || defined(_WINDOWS) || \
defined(_WIN32) || defined(__WIN32__)
# include <windows.h> /* defines _WINDOWS_ macro */
#endif
#endif /* PNG_VERSION_INFO_ONLY */
@@ -556,7 +570,7 @@
/* Memory model/platform independent fns */
#ifndef PNG_ABORT
-# ifdef _WINDOWS_
+# if (defined(_WINDOWS_) || defined(_WIN32_WCE))
# define PNG_ABORT() ExitProcess(0)
# else
# define PNG_ABORT() abort()
diff --git a/src/3rdparty/libpng/pngrutil.c b/src/3rdparty/libpng/pngrutil.c
index d5fa08c397..4db3de990b 100644
--- a/src/3rdparty/libpng/pngrutil.c
+++ b/src/3rdparty/libpng/pngrutil.c
@@ -2087,10 +2087,8 @@ png_handle_eXIf(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
}
}
- if (png_crc_finish(png_ptr, 0) != 0)
- return;
-
- png_set_eXIf_1(png_ptr, info_ptr, length, info_ptr->eXIf_buf);
+ if (png_crc_finish(png_ptr, 0) == 0)
+ png_set_eXIf_1(png_ptr, info_ptr, length, info_ptr->eXIf_buf);
png_free(png_ptr, info_ptr->eXIf_buf);
info_ptr->eXIf_buf = NULL;
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