alice.mosphere.at
this repo has no description
Stop CMake from rebuilding SDL_gpu even though there were no changes to the code.
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CMakeLists.txt
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-3
CMakeLists.txt
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set(SDL_GPU_VERSION "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_BUGFIX}")
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message("Writing version header for v${SDL_GPU_VERSION}")
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string(CONCAT VERSION_HEADER_CONTENTS "#ifndef _SDL_GPU_VERSION_H__
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if(${CMAKE_CURRENT_SOURCE_DIR}/version.txt IS_NEWER_THAN ${CMAKE_CURRENT_SOURCE_DIR}/include/SDL_gpu_version.h)
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# This is to prevent CMake from rebuilding SDL_gpu, which is important when it is an external project in another project.
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# This works since whenever version.txt is changed, it will be newer than SDL_gpu_version.h. The only time SDL_gpu_version.h
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# will be newer than version.txt is when it is created or modified after the latter file.
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message("Writing version header for v${SDL_GPU_VERSION}")
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string(CONCAT VERSION_HEADER_CONTENTS "#ifndef _SDL_GPU_VERSION_H__
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#define _SDL_GPU_VERSION_H__
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#define SDL_GPU_VERSION_MAJOR ${VERSION_MAJOR}
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#define SDL_GPU_VERSION_PATCH ${VERSION_BUGFIX}
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#endif")
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file(WRITE ${CMAKE_CURRENT_SOURCE_DIR}/include/SDL_gpu_version.h ${VERSION_HEADER_CONTENTS})
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file(WRITE ${CMAKE_CURRENT_SOURCE_DIR}/include/SDL_gpu_version.h ${VERSION_HEADER_CONTENTS})
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endif()
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set(DEFAULT_INSTALL_LIBRARY ON)
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set(DEFAULT_BUILD_SHARED ON)