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44 lines
1.3 KiB
44 lines
1.3 KiB
1 year ago
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if(TARGET Eigen3::Eigen)
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return()
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endif()
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message(STATUS "Third-party: creating target 'Eigen3::Eigen'")
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include(FetchContent)
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FetchContent_Declare(
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eigen
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GIT_REPOSITORY https://gitlab.com/libeigen/eigen.git
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GIT_TAG tags/3.4.0
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GIT_SHALLOW TRUE
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)
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FetchContent_GetProperties(eigen)
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if(NOT eigen_POPULATED)
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FetchContent_Populate(eigen)
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endif()
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add_library(Eigen3_Eigen INTERFACE)
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add_library(Eigen3::Eigen ALIAS Eigen3_Eigen)
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include(GNUInstallDirs)
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target_include_directories(Eigen3_Eigen SYSTEM INTERFACE
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$<BUILD_INTERFACE:${eigen_SOURCE_DIR}>
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$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
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)
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option(EIGEN_MPL2_ONLY "Compile Eigen with MPL2 code only" OFF)
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if(EIGEN_MPL2_ONLY)
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target_compile_definitions(Eigen3_Eigen INTERFACE EIGEN_MPL2_ONLY)
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endif()
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# On Windows, enable natvis files to improve debugging experience
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if(WIN32 AND eigen_SOURCE_DIR)
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target_sources(Eigen3_Eigen INTERFACE $<BUILD_INTERFACE:${eigen_SOURCE_DIR}/debug/msvc/eigen.natvis>)
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endif()
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# Install rules
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set(CMAKE_INSTALL_DEFAULT_COMPONENT_NAME eigen)
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set_target_properties(Eigen3_Eigen PROPERTIES EXPORT_NAME Eigen)
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install(DIRECTORY ${eigen_SOURCE_DIR}/Eigen DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
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install(TARGETS Eigen3_Eigen EXPORT EigenTargets)
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install(EXPORT EigenTargets DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/eigen NAMESPACE Eigen3::)
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