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ba7d98adba
- Fix precompiled header support (the pch cleanup phase). - Improve its use in crt. svn path=/branches/cmake-bringup/; revision=48452
41 lines
1.4 KiB
CMake
41 lines
1.4 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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file(REMOVE ${_gch_filename})
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add_custom_command(
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OUTPUT ${_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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