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67 lines
2.0 KiB
67 lines
2.0 KiB
5 years ago
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# - Try to find png
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# You can set PNG_ROOT to specify a certain directory to look in first.
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# Once done this will define
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# PNG_FOUND - System has png
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# PNG_INCLUDE_DIRS - The png include directories
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# PNG_LIBRARIES - The libraries needed to use png
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# Unless we are unable to find ZLIB
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# It also adds an imported target named `3ds::png`, Linking against it is
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# equivalent to:
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# target_link_libraries(mytarget ${PNG_LIBRARIES})
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# target_include_directories(mytarget PRIVATE ${PNG_INCLUDE_DIRS})
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if(NOT NINTENDO_3DS)
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message(FATAL_ERROR "This module can only be used if you are using the 3DS toolchain file. Please erase this build directory or create another one, and then use -DCMAKE_TOOLCHAIN_FILE=DevkitArm3DS.cmake when calling cmake for the 1st time. For more information, see the Readme.md for more information.")
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endif()
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if(PNG_INCLUDE_DIR)
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# Already in cache, be silent
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set(PNG_FIND_QUIETLY TRUE)
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endif(PNG_INCLUDE_DIR)
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include(LibFindMacros)
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include(try_add_imported_target)
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libfind_package(PNG ZLIB)
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set(_PNG_SEARCHES)
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# Search PNG_ROOT first if it is set.
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if(PNG_ROOT)
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set(_PNG_SEARCH_ROOT
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PATHS ${PNG_ROOT}
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NO_DEFAULT_PATH
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NO_CMAKE_FIND_ROOT_PATH)
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list(APPEND _PNG_SEARCHES _PNG_SEARCH_ROOT)
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endif()
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# Search below ${DEVKITPRO}, ${DEVKITARM}, portlibs (if enabled) etc.
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set(_PNG_SEARCH_NORMAL
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PATHS /
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NO_DEFAULT_PATH
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ONLY_CMAKE_FIND_ROOT_PATH)
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list(APPEND _PNG_SEARCHES _PNG_SEARCH_NORMAL)
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foreach(search ${_PNG_SEARCHES})
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find_path(PNG_INCLUDE_DIR NAMES png.h
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${${search}}
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PATH_SUFFIXES include)
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find_library(PNG_LIBRARY NAMES png libpng.a
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${${search}}
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PATH_SUFFIXES lib)
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endforeach()
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#find_library(LIBM_LIBRARY NAMES m libm.a
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# PATHS / /arm-none-eabi
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# PATH_SUFFIXES lib/armv6k/fpu)
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set(LIBM_LIBRARY m)
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set(PNG_PROCESS_INCLUDES PNG_INCLUDE_DIR)
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set(PNG_PROCESS_LIBS PNG_LIBRARY LIBM_LIBRARY)
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libfind_process(PNG)
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try_add_imported_target(PNG m 3ds::zlib)
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5 years ago
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add_library(PNG::PNG ALIAS 3ds::png)
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