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https://github.com/reactos/reactos.git
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41 lines
1.5 KiB
CMake
41 lines
1.5 KiB
CMake
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MACRO(_PCH_GET_COMPILE_FLAGS _target_name _out_compile_flags _header_filename)
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# Add the precompiled header to the build
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SET(_gch_filename "${_header_filename}.gch")
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LIST(APPEND ${_out_compile_flags} -c ${_header_filename} -o ${_gch_filename})
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# This gets us our includes
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GET_DIRECTORY_PROPERTY(DIRINC INCLUDE_DIRECTORIES)
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FOREACH(item ${DIRINC})
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LIST(APPEND ${_out_compile_flags} -I${item})
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ENDFOREACH(item)
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# This is a particular bit of undocumented/hacky magic I'm quite proud of
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GET_DIRECTORY_PROPERTY(_compiler_flags DEFINITIONS)
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STRING(REPLACE "\ " "\t" _compiler_flags ${_compiler_flags})
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LIST(APPEND ${_out_compile_flags} ${_compiler_flags})
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# This gets any specific definitions that were added with set-target-property
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GET_TARGET_PROPERTY(_target_defs ${_target_name} COMPILE_DEFINITIONS)
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IF (_target_defs)
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FOREACH(item ${_target_defs})
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LIST(APPEND ${_out_compile_flags} -D${item})
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ENDFOREACH(item)
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ENDIF()
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ENDMACRO(_PCH_GET_COMPILE_FLAGS)
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MACRO(add_pch _target_name _header_filename _src_list)
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SET(_gch_filename "${_header_filename}.gch")
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LIST(APPEND ${_src_list} ${_gch_filename})
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_PCH_GET_COMPILE_FLAGS(${_target_name} _args ${_header_filename})
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add_custom_command(OUTPUT ${_gch_filename}
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COMMAND rm -f ${_gch_filename}
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COMMAND ${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1} ${_args}
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DEPENDS ${_header_filename})
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ENDMACRO(add_pch _target_name _header_filename _src_list)
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