91 lines
2.8 KiB
CMake
91 lines
2.8 KiB
CMake
include(AddFileDependencies)
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function(llvm_replace_compiler_option var old new)
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# Replaces a compiler option or switch `old' in `var' by `new'.
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# If `old' is not in `var', appends `new' to `var'.
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# Example: llvm_replace_compiler_option(CMAKE_CXX_FLAGS_RELEASE "-O3" "-O2")
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# If the option already is on the variable, don't add it:
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if( "${${var}}" MATCHES "(^| )${new}($| )" )
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set(n "")
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else()
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set(n "${new}")
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endif()
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if( "${${var}}" MATCHES "(^| )${old}($| )" )
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string( REGEX REPLACE "(^| )${old}($| )" " ${n} " ${var} "${${var}}" )
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else()
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set( ${var} "${${var}} ${n}" )
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endif()
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set( ${var} "${${var}}" PARENT_SCOPE )
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endfunction(llvm_replace_compiler_option)
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macro(add_td_sources srcs)
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file(GLOB tds *.td)
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if( tds )
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source_group("TableGen descriptions" FILES ${tds})
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set_source_files_properties(${tds} PROPERTIES HEADER_FILE_ONLY ON)
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list(APPEND ${srcs} ${tds})
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endif()
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endmacro(add_td_sources)
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macro(add_header_files srcs)
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file(GLOB hds *.h *.def)
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if( hds )
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set_source_files_properties(${hds} PROPERTIES HEADER_FILE_ONLY ON)
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list(APPEND ${srcs} ${hds})
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endif()
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endmacro(add_header_files)
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function(llvm_process_sources OUT_VAR)
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set( sources ${ARGN} )
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llvm_check_source_file_list( ${sources} )
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# Create file dependencies on the tablegenned files, if any. Seems
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# that this is not strictly needed, as dependencies of the .cpp
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# sources on the tablegenned .inc files are detected and handled,
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# but just in case...
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foreach( s ${sources} )
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set( f ${CMAKE_CURRENT_SOURCE_DIR}/${s} )
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add_file_dependencies( ${f} ${TABLEGEN_OUTPUT} )
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endforeach(s)
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if( MSVC_IDE )
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# This adds .td and .h files to the Visual Studio solution:
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add_td_sources(sources)
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add_header_files(sources)
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endif()
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# Set common compiler options:
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if( NOT LLVM_REQUIRES_EH )
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if( LLVM_COMPILER_IS_GCC_COMPATIBLE )
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add_definitions( -fno-exceptions )
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elseif( MSVC )
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llvm_replace_compiler_option(CMAKE_CXX_FLAGS "/EHsc" "/EHs-c-")
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add_definitions( /D_HAS_EXCEPTIONS=0 )
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endif()
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endif()
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if( NOT LLVM_REQUIRES_RTTI )
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if( LLVM_COMPILER_IS_GCC_COMPATIBLE )
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llvm_replace_compiler_option(CMAKE_CXX_FLAGS "-frtti" "-fno-rtti")
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elseif( MSVC )
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llvm_replace_compiler_option(CMAKE_CXX_FLAGS "/GR" "/GR-")
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endif()
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endif()
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set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" PARENT_SCOPE )
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set( ${OUT_VAR} ${sources} PARENT_SCOPE )
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endfunction(llvm_process_sources)
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function(llvm_check_source_file_list)
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set(listed ${ARGN})
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file(GLOB globbed *.cpp)
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foreach(g ${globbed})
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get_filename_component(fn ${g} NAME)
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list(FIND listed ${fn} idx)
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if( idx LESS 0 )
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message(SEND_ERROR "Found unknown source file ${g}
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Please update ${CMAKE_CURRENT_SOURCE_DIR}/CMakeLists.txt\n")
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endif()
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endforeach()
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endfunction(llvm_check_source_file_list)
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