15 lines
607 B
CMake
15 lines
607 B
CMake
function(prevent_in_source_build)
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get_filename_component(REAL_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}" REALPATH)
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get_filename_component(REAL_BINARY_DIR "${CMAKE_CURRENT_BINARY_DIR}" REALPATH)
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if (REAL_BINARY_DIR STREQUAL REAL_SOURCE_DIR)
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message(" Out-of-source build must be used. Remove the files already")
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message(" created by CMake and rerun CMake from a new directory:")
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message(" rm -rf CMakeFiles CMakeCache.txt")
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message(" mkdir build")
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message(" cd build")
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message(" cmake ..")
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message(FATAL_ERROR "In-source build failed.")
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endif()
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endfunction()
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