mirror of
https://github.com/reactos/CMake.git
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86578eccf2
Per-source copyright/license notice headers that spell out copyright holder names and years are hard to maintain and often out-of-date or plain wrong. Precise contributor information is already maintained automatically by the version control tool. Ultimately it is the receiver of a file who is responsible for determining its licensing status, and per-source notices are merely a convenience. Therefore it is simpler and more accurate for each source to have a generic notice of the license name and references to more detailed information on copyright holders and full license terms. Our `Copyright.txt` file now contains a list of Contributors whose names appeared source-level copyright notices. It also references version control history for more precise information. Therefore we no longer need to spell out the list of Contributors in each source file notice. Replace CMake per-source copyright/license notice headers with a short description of the license and links to `Copyright.txt` and online information available from "https://cmake.org/licensing". The online URL also handles cases of modules being copied out of our source into other projects, so we can drop our notices about replacing links with full license text. Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority of the replacements mechanically. Manually fix up shebang lines and trailing newlines in a few files. Manually update the notices in a few files that the script does not handle.
114 lines
5.0 KiB
CMake
114 lines
5.0 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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# This file is included by CMakeFindEclipseCDT4.cmake and CMakeFindCodeBlocks.cmake
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# The Eclipse and the CodeBlocks generators need to know the standard include path
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# so that they can find the headers at runtime and parsing etc. works better
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# This is done here by actually running gcc with the options so it prints its
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# system include directories, which are parsed then and stored in the cache.
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macro(_DETERMINE_GCC_SYSTEM_INCLUDE_DIRS _lang _resultIncludeDirs _resultDefines)
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set(${_resultIncludeDirs})
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set(_gccOutput)
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file(WRITE "${CMAKE_BINARY_DIR}/CMakeFiles/dummy" "\n" )
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if (${_lang} STREQUAL "c++")
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set(_compilerExecutable "${CMAKE_CXX_COMPILER}")
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set(_arg1 "${CMAKE_CXX_COMPILER_ARG1}")
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if (CMAKE_CXX_FLAGS MATCHES "(-stdlib=[^ ]+)")
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set(_stdlib "${CMAKE_MATCH_1}")
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endif ()
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if (CMAKE_CXX_FLAGS MATCHES "(-std=[^ ]+)")
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set(_stdver "${CMAKE_MATCH_1}")
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endif ()
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else ()
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set(_compilerExecutable "${CMAKE_C_COMPILER}")
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set(_arg1 "${CMAKE_C_COMPILER_ARG1}")
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endif ()
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execute_process(COMMAND ${_compilerExecutable} ${_arg1} ${_stdver} ${_stdlib} -v -E -x ${_lang} -dD dummy
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WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/CMakeFiles
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ERROR_VARIABLE _gccOutput
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OUTPUT_VARIABLE _gccStdout )
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file(REMOVE "${CMAKE_BINARY_DIR}/CMakeFiles/dummy")
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# First find the system include dirs:
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if( "${_gccOutput}" MATCHES "> search starts here[^\n]+\n *(.+ *\n) *End of (search) list" )
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# split the output into lines and then remove leading and trailing spaces from each of them:
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string(REGEX MATCHALL "[^\n]+\n" _includeLines "${CMAKE_MATCH_1}")
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foreach(nextLine ${_includeLines})
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# on OSX, gcc says things like this: "/System/Library/Frameworks (framework directory)", strip the last part
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string(REGEX REPLACE "\\(framework directory\\)" "" nextLineNoFramework "${nextLine}")
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# strip spaces at the beginning and the end
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string(STRIP "${nextLineNoFramework}" _includePath)
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list(APPEND ${_resultIncludeDirs} "${_includePath}")
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endforeach()
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endif()
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# now find the builtin macros:
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string(REGEX MATCHALL "#define[^\n]+\n" _defineLines "${_gccStdout}")
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# A few example lines which the regexp below has to match properly:
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# #define MAX(a,b) ((a) > (b) ? (a) : (b))
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# #define __fastcall __attribute__((__fastcall__))
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# #define FOO (23)
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# #define __UINTMAX_TYPE__ long long unsigned int
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# #define __UINTMAX_TYPE__ long long unsigned int
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# #define __i386__ 1
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foreach(nextLine ${_defineLines})
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string(REGEX MATCH "^#define +([A-Za-z_][A-Za-z0-9_]*)(\\([^\\)]+\\))? +(.+) *$" _dummy "${nextLine}")
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set(_name "${CMAKE_MATCH_1}${CMAKE_MATCH_2}")
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string(STRIP "${CMAKE_MATCH_3}" _value)
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#message(STATUS "m1: -${CMAKE_MATCH_1}- m2: -${CMAKE_MATCH_2}- m3: -${CMAKE_MATCH_3}-")
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list(APPEND ${_resultDefines} "${_name}")
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if(_value)
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list(APPEND ${_resultDefines} "${_value}")
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else()
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list(APPEND ${_resultDefines} " ")
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endif()
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endforeach()
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endmacro()
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# Save the current LC_ALL, LC_MESSAGES, and LANG environment variables and set them
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# to "C" that way GCC's "search starts here" text is in English and we can grok it.
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set(_orig_lc_all $ENV{LC_ALL})
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set(_orig_lc_messages $ENV{LC_MESSAGES})
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set(_orig_lang $ENV{LANG})
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set(ENV{LC_ALL} C)
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set(ENV{LC_MESSAGES} C)
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set(ENV{LANG} C)
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# Now check for C, works for gcc and Intel compiler at least
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if (NOT CMAKE_EXTRA_GENERATOR_C_SYSTEM_INCLUDE_DIRS)
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if (CMAKE_C_COMPILER_ID MATCHES GNU OR CMAKE_C_COMPILER_ID MATCHES Intel OR CMAKE_C_COMPILER_ID MATCHES Clang)
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_DETERMINE_GCC_SYSTEM_INCLUDE_DIRS(c _dirs _defines)
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set(CMAKE_EXTRA_GENERATOR_C_SYSTEM_INCLUDE_DIRS "${_dirs}" CACHE INTERNAL "C compiler system include directories")
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set(CMAKE_EXTRA_GENERATOR_C_SYSTEM_DEFINED_MACROS "${_defines}" CACHE INTERNAL "C compiler system defined macros")
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elseif ("${CMAKE_C_COMPILER_ID}" MATCHES MSVC)
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set(CMAKE_EXTRA_GENERATOR_C_SYSTEM_INCLUDE_DIRS "$ENV{INCLUDE}" CACHE INTERNAL "C compiler system include directories")
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endif ()
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endif ()
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# And now the same for C++
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if (NOT CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_INCLUDE_DIRS)
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if ("${CMAKE_CXX_COMPILER_ID}" MATCHES GNU OR "${CMAKE_CXX_COMPILER_ID}" MATCHES Intel OR "${CMAKE_CXX_COMPILER_ID}" MATCHES Clang)
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_DETERMINE_GCC_SYSTEM_INCLUDE_DIRS(c++ _dirs _defines)
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set(CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_INCLUDE_DIRS "${_dirs}" CACHE INTERNAL "CXX compiler system include directories")
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set(CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS "${_defines}" CACHE INTERNAL "CXX compiler system defined macros")
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elseif ("${CMAKE_CXX_COMPILER_ID}" MATCHES MSVC)
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set(CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_INCLUDE_DIRS "$ENV{INCLUDE}" CACHE INTERNAL "CXX compiler system include directories")
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endif ()
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endif ()
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# Restore original LC_ALL, LC_MESSAGES, and LANG
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set(ENV{LC_ALL} ${_orig_lc_all})
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set(ENV{LC_MESSAGES} ${_orig_lc_messages})
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set(ENV{LANG} ${_orig_lang})
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