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-rw-r--r--Modules/FindPNG.cmake5
1 files changed, 4 insertions, 1 deletions
diff --git a/Modules/FindPNG.cmake b/Modules/FindPNG.cmake
index 2208b48..a7908c5 100644
--- a/Modules/FindPNG.cmake
+++ b/Modules/FindPNG.cmake
@@ -100,13 +100,14 @@ if(ZLIB_FOUND)
# No need to define PNG_USE_DLL here, because it's default for Cygwin.
else()
set (PNG_DEFINITIONS -DPNG_STATIC)
+ set(_PNG_COMPILE_DEFINITIONS PNG_STATIC)
endif()
endif ()
if(NOT TARGET PNG::PNG)
add_library(PNG::PNG UNKNOWN IMPORTED)
set_target_properties(PNG::PNG PROPERTIES
- INTERFACE_COMPILE_DEFINITIONS "${PNG_DEFINITIONS}"
+ INTERFACE_COMPILE_DEFINITIONS "${_PNG_COMPILE_DEFINITIONS}"
INTERFACE_INCLUDE_DIRECTORIES "${PNG_INCLUDE_DIRS}"
INTERFACE_LINK_LIBRARIES ZLIB::ZLIB)
if(EXISTS "${PNG_LIBRARY}")
@@ -129,6 +130,8 @@ if(ZLIB_FOUND)
IMPORTED_LOCATION_DEBUG "${PNG_LIBRARY_DEBUG}")
endif()
endif()
+
+ unset(_PNG_COMPILE_DEFINITIONS)
endif ()
if (PNG_PNG_INCLUDE_DIR AND EXISTS "${PNG_PNG_INCLUDE_DIR}/png.h")