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d0052f6320
It's much nicer and less error prone to just use add_subdirectory to establish the include directory. Hide the GNUInstallDirs module by placing it in the helper module. The intent being that the main CMakeLists.txt should have a little code as possible. So that readers can quickly understand the project. Use include_guard() when available in cmake 3.10+ Co-authored-by: Juan Ramos <juanr0911@gmail.com>
21 lines
627 B
CMake
21 lines
627 B
CMake
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# Add include folders to the library and targets that consume it
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# the SYSTEM keyword suppresses warnings for users of the library
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#
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# By adding this directory as an include directory the user gets a
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# namespace effect.
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#
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# IE:
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# #include <gsl/gsl>
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if(GSL_STANDALONE_PROJECT)
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target_include_directories(GSL INTERFACE
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$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
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$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
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)
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else()
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target_include_directories(GSL SYSTEM INTERFACE
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$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
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$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
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)
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endif()
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