86cb17b18d
The GNU 4.x toolchain on MinGW (and therefore MSYS) allows compiler options to be passed via response files. Use this to pass include directory -I options. This allows the include file search path to be very long despite shell and mingw32-make command line length limits.
127 lines
5.5 KiB
CMake
127 lines
5.5 KiB
CMake
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#=============================================================================
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# Copyright 2002-2009 Kitware, Inc.
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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# This module is shared by multiple languages; use include blocker.
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if(__WINDOWS_GNU)
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return()
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endif()
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set(__WINDOWS_GNU 1)
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set(CMAKE_IMPORT_LIBRARY_PREFIX "lib")
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set(CMAKE_SHARED_LIBRARY_PREFIX "lib")
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set(CMAKE_SHARED_MODULE_PREFIX "lib")
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set(CMAKE_STATIC_LIBRARY_PREFIX "lib")
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set(CMAKE_EXECUTABLE_SUFFIX ".exe")
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set(CMAKE_IMPORT_LIBRARY_SUFFIX ".dll.a")
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set(CMAKE_SHARED_LIBRARY_SUFFIX ".dll")
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set(CMAKE_SHARED_MODULE_SUFFIX ".dll")
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set(CMAKE_STATIC_LIBRARY_SUFFIX ".a")
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if(MSYS OR MINGW)
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set(CMAKE_EXTRA_LINK_EXTENSIONS ".lib") # MinGW can also link to a MS .lib
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endif()
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if(MINGW)
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set(CMAKE_FIND_LIBRARY_PREFIXES "lib" "")
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set(CMAKE_FIND_LIBRARY_SUFFIXES ".dll" ".dll.a" ".a" ".lib")
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set(CMAKE_C_STANDARD_LIBRARIES_INIT "-lkernel32 -luser32 -lgdi32 -lwinspool -lshell32 -lole32 -loleaut32 -luuid -lcomdlg32 -ladvapi32")
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set(CMAKE_CXX_STANDARD_LIBRARIES_INIT "${CMAKE_C_STANDARD_LIBRARIES_INIT}")
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endif()
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set(CMAKE_DL_LIBS "")
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set(CMAKE_LIBRARY_PATH_FLAG "-L")
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set(CMAKE_LINK_LIBRARY_FLAG "-l")
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set(CMAKE_LINK_LIBRARY_SUFFIX "")
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set(CMAKE_CREATE_WIN32_EXE "-mwindows")
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set(CMAKE_GNULD_IMAGE_VERSION
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"-Wl,--major-image-version,<TARGET_VERSION_MAJOR>,--minor-image-version,<TARGET_VERSION_MINOR>")
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# Check if GNU ld is too old to support @FILE syntax.
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set(__WINDOWS_GNU_LD_RESPONSE 1)
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execute_process(COMMAND ld -v OUTPUT_VARIABLE _help ERROR_VARIABLE _help)
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if("${_help}" MATCHES "GNU ld .* 2\\.1[1-6]")
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set(__WINDOWS_GNU_LD_RESPONSE 0)
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endif()
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enable_language(RC)
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macro(__windows_compiler_gnu lang)
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if(MSYS OR MINGW)
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# Create archiving rules to support large object file lists for static libraries.
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set(CMAKE_${lang}_ARCHIVE_CREATE "<CMAKE_AR> cr <TARGET> <LINK_FLAGS> <OBJECTS>")
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set(CMAKE_${lang}_ARCHIVE_APPEND "<CMAKE_AR> r <TARGET> <LINK_FLAGS> <OBJECTS>")
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set(CMAKE_${lang}_ARCHIVE_FINISH "<CMAKE_RANLIB> <TARGET>")
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# Initialize C link type selection flags. These flags are used when
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# building a shared library, shared module, or executable that links
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# to other libraries to select whether to use the static or shared
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# versions of the libraries.
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foreach(type SHARED_LIBRARY SHARED_MODULE EXE)
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set(CMAKE_${type}_LINK_STATIC_${lang}_FLAGS "-Wl,-Bstatic")
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set(CMAKE_${type}_LINK_DYNAMIC_${lang}_FLAGS "-Wl,-Bdynamic")
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endforeach(type)
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endif()
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set(CMAKE_SHARED_LIBRARY_${lang}_FLAGS "") # No -fPIC on Windows
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set(CMAKE_${lang}_USE_RESPONSE_FILE_FOR_OBJECTS ${__WINDOWS_GNU_LD_RESPONSE})
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set(CMAKE_${lang}_USE_RESPONSE_FILE_FOR_INCLUDES 1)
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# We prefer "@" for response files but it is not supported by gcc 3.
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execute_process(COMMAND ${CMAKE_${lang}_COMPILER} --version OUTPUT_VARIABLE _ver ERROR_VARIABLE _ver)
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if("${_ver}" MATCHES "\\(GCC\\) 3\\.")
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if("${lang}" STREQUAL "Fortran")
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# The GNU Fortran compiler reports an error:
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# no input files; unwilling to write output files
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# when the response file is passed with "-Wl,@".
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set(CMAKE_Fortran_USE_RESPONSE_FILE_FOR_OBJECTS 0)
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else()
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# Use "-Wl,@" to pass the response file to the linker.
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set(CMAKE_${lang}_RESPONSE_FILE_LINK_FLAG "-Wl,@")
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endif()
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# The GNU 3.x compilers do not support response files (only linkers).
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set(CMAKE_${lang}_USE_RESPONSE_FILE_FOR_INCLUDES 0)
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elseif(CMAKE_${lang}_USE_RESPONSE_FILE_FOR_OBJECTS)
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# Use "@" to pass the response file to the front-end.
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set(CMAKE_${lang}_RESPONSE_FILE_LINK_FLAG "@")
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endif()
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# Binary link rules.
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set(CMAKE_${lang}_CREATE_SHARED_MODULE
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"<CMAKE_${lang}_COMPILER> <CMAKE_SHARED_MODULE_${lang}_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_MODULE_CREATE_${lang}_FLAGS> -o <TARGET> ${CMAKE_GNULD_IMAGE_VERSION} <OBJECTS> <LINK_LIBRARIES>")
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set(CMAKE_${lang}_CREATE_SHARED_LIBRARY
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"<CMAKE_${lang}_COMPILER> <CMAKE_SHARED_LIBRARY_${lang}_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS> -o <TARGET> -Wl,--out-implib,<TARGET_IMPLIB> ${CMAKE_GNULD_IMAGE_VERSION} <OBJECTS> <LINK_LIBRARIES>")
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set(CMAKE_${lang}_LINK_EXECUTABLE
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"<CMAKE_${lang}_COMPILER> <FLAGS> <CMAKE_${lang}_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> -Wl,--out-implib,<TARGET_IMPLIB> ${CMAKE_GNULD_IMAGE_VERSION} <LINK_LIBRARIES>")
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# Support very long lists of object files.
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if("${CMAKE_${lang}_RESPONSE_FILE_LINK_FLAG}" STREQUAL "@")
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foreach(rule CREATE_SHARED_MODULE CREATE_SHARED_LIBRARY LINK_EXECUTABLE)
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# The gcc/collect2/ld toolchain does not use response files
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# internally so we cannot pass long object lists. Instead pass
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# the object file list in a response file to the archiver to put
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# them in a temporary archive. Hand the archive to the linker.
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string(REPLACE "<OBJECTS>" "-Wl,--whole-archive <OBJECT_DIR>/objects.a -Wl,--no-whole-archive"
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CMAKE_${lang}_${rule} "${CMAKE_${lang}_${rule}}")
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set(CMAKE_${lang}_${rule}
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"<CMAKE_COMMAND> -E remove -f <OBJECT_DIR>/objects.a"
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"<CMAKE_AR> cr <OBJECT_DIR>/objects.a <OBJECTS>"
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"${CMAKE_${lang}_${rule}}"
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)
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endforeach()
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endif()
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endmacro()
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