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b77be28514
CMake builds might expose faulty behaviour if remnants of in source builds remain. Check for these and abort if detected
39 lines
1.2 KiB
CMake
39 lines
1.2 KiB
CMake
# PreventInSourceBuilds
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# ---------------------
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#
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# Prevent in-source builds
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#
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# It is generally acknowledged that it is preferable to run CMake out of source,
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# in a dedicated build directory. To prevent users from accidentally running
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# CMake in the source directory, just include this module.
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# make sure the user doesn't play dirty with symlinks
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get_filename_component(srcdir "${CMAKE_SOURCE_DIR}" REALPATH)
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get_filename_component(bindir "${CMAKE_BINARY_DIR}" REALPATH)
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# disallow in-source builds
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if("${srcdir}" STREQUAL "${bindir}")
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message(FATAL_ERROR "\
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CMake must not to be run in the source directory. \
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Rather create a dedicated build directory and run CMake there. \
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CMake now already created some files, to clean up after this aborted in-source compilation:
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rm -r CMakeCache.txt CMakeFiles
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or
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git clean -xdf
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")
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endif()
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# Check for remnants of in source builds
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if(EXISTS "${CMAKE_SOURCE_DIR}/CMakeCache.txt" OR EXISTS "${CMAKE_SOURCE_DIR}/CMakeFiles")
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message(FATAL_ERROR " \
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Remnants of in source CMake run detected, aborting!
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To clean up after this aborted in-source compilation:
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rm -r CMakeCache.txt CMakeFiles
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or
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git clean -xdf
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")
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endif()
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