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https://github.com/gbdev/rgbds.git
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Eldred Habert
65ec1af1e8
This moves the tortuous flags out of our CI scripts, and allows us to benefit from the libpng download caching.
29 lines
1.5 KiB
CMake
29 lines
1.5 KiB
CMake
# This file is meant to be included at the project level,
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# in order to generate executables compatible with old macOS versions.
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# See our `macos-static` CMake preset for how it's meant to be used.
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# The `-mmacosx-version-min=10.9` flag ensures that the binary only uses APIs available on Mac OS X 10.9 Mavericks.
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# The `-arch` flags build a "fat binary" that works on both Apple architectures:
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# older Intel x64 Macs and newer ARM "Apple Silicon" ones.
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set("-mmacosx-version-min=10.9 -arch x86_64 -arch arm64")
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set(CMAKE_C_FLAGS "${secret_sauce}" CACHE STRING "Flags used by the C compiler during all build types.")
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set(CMAKE_CXX_FLAGS "${secret_sauce}" CACHE STRING "Flags used by the CXX compiler during all build types.")
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# Mac OS X has always provided zlib, so we can safely link dynamically against it.
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# However, libpng is *not* provided by default, so we link it statically, which requires downloading and building it from source.
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set(PNG_SHARED OFF)
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set(PNG_STATIC ON)
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# If libpng is already available (e.g. via Homebrew), we ignore that and still build our own.
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set(FETCHCONTENT_TRY_FIND_PACKAGE_MODE NEVER)
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# But we still want to attempt linking against the system's zlib.
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function(rgbds_provide_dependency method dep_name)
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if(dep_name STREQUAL "ZLIB")
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find_package(ZLIB)
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if(ZLIB_FOUND)
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FetchContent_SetPopulated(ZLIB)
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endif()
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endif()
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endfunction(rgbds_provide_dependency)
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cmake_language(SET_DEPENDENCY_PROVIDER rgbds_provide_dependency
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SUPPORTED_METHODS FETCHCONTENT_MAKEAVAILABLE_SERIAL)
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