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cmake/cmake-fix-png-include-dir.patch

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Index: cmake-3.23.3/Modules/FindPNG.cmake
===================================================================
--- cmake-3.23.3.orig/Modules/FindPNG.cmake
+++ cmake-3.23.3/Modules/FindPNG.cmake
@@ -54,12 +54,16 @@ endif()
find_package(ZLIB ${_FIND_ZLIB_ARG})
if(ZLIB_FOUND)
- find_path(PNG_PNG_INCLUDE_DIR png.h PATH_SUFFIXES include/libpng)
+ set(_PNG_VERSION_SUFFIXES 17 16 15 14 12)
+ foreach(v IN LISTS _PNG_VERSION_SUFFIXES)
+ list(APPEND _PNG_INCLUDE_SUFFIXES libpng${v})
+ endforeach()
+ find_path(PNG_PNG_INCLUDE_DIR png.h PATH_SUFFIXES include/libpng ${_PNG_INCLUDE_SUFFIXES})
+ unset(_PNG_INCLUDE_SUFFIXES)
mark_as_advanced(PNG_PNG_INCLUDE_DIR)
list(APPEND PNG_NAMES png libpng)
unset(PNG_NAMES_DEBUG)
- set(_PNG_VERSION_SUFFIXES 17 16 15 14 12)
if (PNG_FIND_VERSION MATCHES "^([0-9]+)\\.([0-9]+)(\\..*)?$")
set(_PNG_VERSION_SUFFIX_MIN "${CMAKE_MATCH_1}${CMAKE_MATCH_2}")
if (PNG_FIND_VERSION_EXACT)