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cmake_minimum_required(VERSION 3.22)
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project(Corrosion
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# Official releases will be major.minor.patch. When the `tweak` field is
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# set it indicates that we are on a commit, that is not a officially
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# tagged release. Users don't need to care about this, it is mainly to
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# clearly see in configure logs which version was used, without needing to
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# rely on `git`, since Corrosion may be installed or otherwise packaged.
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VERSION 0.99.99 # 1.0-pre-release
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LANGUAGES NONE
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HOMEPAGE_URL "https://corrosion-rs.github.io/corrosion/"
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)
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# ==== Corrosion Configuration ====
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option(
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CORROSION_BUILD_TESTS
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"Build Corrosion test project"
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${PROJECT_IS_TOP_LEVEL}
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)
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if (PROJECT_IS_TOP_LEVEL)
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# We need to enable a language for corrosions test to work.
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# For projects using corrosion this is not needed
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enable_language(C)
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endif()
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# This little bit self-hosts the Corrosion toolchain to build the generator
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# tool.
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#
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# It is strongly encouraged to install Corrosion separately and use
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# `find_package(Corrosion REQUIRED)` instead if that works with your workflow.
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option(CORROSION_INSTALL_ONLY "Only add rules for installing Corrosion itself." OFF)
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if (NOT CORROSION_INSTALL_ONLY)
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list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
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include(Corrosion)
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endif()
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# Testing
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if (CORROSION_BUILD_TESTS)
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include(CTest)
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add_subdirectory(test)
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endif()
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# If Corrosion is a subdirectory, do not enable its install code
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if (NOT PROJECT_IS_TOP_LEVEL)
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return()
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endif()
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# Installation
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include(GNUInstallDirs)
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# Generate the Config file
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include(CMakePackageConfigHelpers)
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configure_package_config_file(
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cmake/CorrosionConfig.cmake.in CorrosionConfig.cmake
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INSTALL_DESTINATION
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"${CMAKE_INSTALL_FULL_LIBDIR}/cmake/Corrosion"
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)
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write_basic_package_version_file(
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"${CMAKE_CURRENT_BINARY_DIR}/CorrosionConfigVersion.cmake"
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VERSION ${PROJECT_VERSION}
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COMPATIBILITY
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SameMajorVersion
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ARCH_INDEPENDENT
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)
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install(
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FILES
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"${CMAKE_CURRENT_BINARY_DIR}/CorrosionConfig.cmake"
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"${CMAKE_CURRENT_BINARY_DIR}/CorrosionConfigVersion.cmake"
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DESTINATION
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"${CMAKE_INSTALL_FULL_LIBDIR}/cmake/Corrosion"
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)
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# These CMake scripts are needed both for the install and as a subdirectory
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install(
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FILES
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cmake/Corrosion.cmake
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cmake/CorrosionGenerator.cmake
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cmake/FindRust.cmake
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DESTINATION
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"${CMAKE_INSTALL_FULL_DATADIR}/cmake"
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)
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