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-rw-r--r--src/3rdparty/libpng/pngconf.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/3rdparty/libpng/pngconf.h b/src/3rdparty/libpng/pngconf.h
index 2a41a29..b02f2a0 100644
--- a/src/3rdparty/libpng/pngconf.h
+++ b/src/3rdparty/libpng/pngconf.h
@@ -286,6 +286,11 @@
# endif
# endif
+/* Avoid exporting libpng symbols from Qt DLL on Windows */
+# if defined (_MSC_VER) && defined(PNG_IMPEXP)
+# undef PNG_IMPEXP
+# endif
+
# ifndef PNG_IMPEXP
# define PNG_IMPEXP
# endif