diff --git a/src/3rdparty/libpng/pnglibconf.h b/src/3rdparty/libpng/pnglibconf.h
index b4ec3c3..f0fdcf8 100644
--- a/src/3rdparty/libpng/pnglibconf.h
+++ b/src/3rdparty/libpng/pnglibconf.h
@@ -27,7 +27,9 @@
 #define PNG_CHECK_FOR_INVALID_INDEX_SUPPORTED
 #define PNG_COLORSPACE_SUPPORTED
 #define PNG_CONSOLE_IO_SUPPORTED
+#ifndef _WIN32_WCE
 #define PNG_CONVERT_tIME_SUPPORTED
+#endif
 #define PNG_EASY_ACCESS_SUPPORTED
 /*#undef PNG_ERROR_NUMBERS_SUPPORTED*/
 #define PNG_ERROR_TEXT_SUPPORTED
@@ -106,12 +108,14 @@
 #define PNG_SET_OPTION_SUPPORTED
 #define PNG_SET_UNKNOWN_CHUNKS_SUPPORTED
 #define PNG_SET_USER_LIMITS_SUPPORTED
+#ifndef _WIN32_WCE
 #define PNG_SIMPLIFIED_READ_AFIRST_SUPPORTED
 #define PNG_SIMPLIFIED_READ_BGR_SUPPORTED
 #define PNG_SIMPLIFIED_READ_SUPPORTED
 #define PNG_SIMPLIFIED_WRITE_AFIRST_SUPPORTED
 #define PNG_SIMPLIFIED_WRITE_BGR_SUPPORTED
 #define PNG_SIMPLIFIED_WRITE_SUPPORTED
+#endif
 #define PNG_STDIO_SUPPORTED
 #define PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED
 #define PNG_TEXT_SUPPORTED
diff --git a/src/3rdparty/libpng/pngpriv.h b/src/3rdparty/libpng/pngpriv.h
index 5980a3f..7185444 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.
@@ -215,6 +221,11 @@
 #  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
@@ -426,6 +437,9 @@
 #if defined(WIN32) || defined(_Windows) || defined(_WINDOWS) || \
     defined(_WIN32) || defined(__WIN32__)
 #  include <windows.h>  /* defines _WINDOWS_ macro */
+#  if defined(WINAPI_FAMILY) && (WINAPI_FAMILY==WINAPI_FAMILY_APP || WINAPI_FAMILY==WINAPI_FAMILY_PHONE_APP)
+#    define _WINRT_ /* Define a macro for Windows Runtime builds */
+#  endif
 #endif
 #endif /* PNG_VERSION_INFO_ONLY */
 
@@ -436,7 +450,7 @@
 
 /* Memory model/platform independent fns */
 #ifndef PNG_ABORT
-#  ifdef _WINDOWS_
+#  if (defined(_WINDOWS_) || defined(_WIN32_WCE)) && !defined(_WINRT_)
 #    define PNG_ABORT() ExitProcess(0)
 #  else
 #    define PNG_ABORT() abort()