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- # MACRO_ENSURE_OUT_OF_SOURCE_BUILD(<errorMessage>)
- macro( MACRO_ENSURE_OUT_OF_SOURCE_BUILD _errorMessage )
- string( COMPARE EQUAL "${CMAKE_SOURCE_DIR}" "${CMAKE_BINARY_DIR}" _insource )
- if( _insource )
- message( SEND_ERROR "${_errorMessage}" )
- message( FATAL_ERROR
- "In-source builds are not allowed.
- CMake would overwrite the makefiles distributed with Compiler-RT.
- Please create a directory and run cmake from there, passing the path
- to this source directory as the last argument.
- This process created the file `CMakeCache.txt' and the directory `CMakeFiles'.
- Please delete them."
- )
- endif( _insource )
- endmacro( MACRO_ENSURE_OUT_OF_SOURCE_BUILD )
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