2005-12-14 18:51:08 +00:00
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2009-09-28 15:46:51 +00:00
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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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2010-08-07 00:48:47 +00:00
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# (To distribute this file outside of CMake, substitute the full
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2009-09-28 15:46:51 +00:00
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# License text for the above reference.)
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2002-10-22 14:34:07 +00:00
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# determine the compiler to use for C programs
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# NOTE, a generator may set CMAKE_C_COMPILER before
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# loading this file to force a compiler.
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ENH: merge CMake-CrossCompileBasic to HEAD
-add a RESULT_VARIABLE to INCLUDE()
-add CMAKE_TOOLCHAIN_FILE for specifiying your (potentially crosscompiling) toolchain
-have TRY_RUN() complain if you try to use it in crosscompiling mode (which were compiled but cannot run on this system)
-use CMAKE_EXECUTABLE_SUFFIX in TRY_RUN(), probably TRY_RUN won't be able to
run the executables if they have a different suffix because they are
probably crosscompiled, but nevertheless it should be able to find them
-make several cmake variables presettable by the user: CMAKE_C/CXX_COMPILER, CMAKE_C/CXX_OUTPUT_EXTENSION, CMAKE_SYSTEM_NAME, CMAKE_SYSTEM_INFO_FILE
-support prefix for GNU toolchains (arm-elf-gcc, arm-elf-ar, arm-elf-strip etc.)
-move ranlib on OSX from the file command to a command in executed in cmake_install.cmake
-add support for stripping during install in cmake_install.cmake
-split out cl.cmake from Windows-cl.cmake, first (very incomplete) step to support MS crosscompiling tools
-remove stdio.h from the simple C program which checks if the compiler works, since this may not exist for some embedded platforms
-create a new CMakeFindBinUtils.cmake which collects the search fro ar, ranlib, strip, ld, link, install_name_tool and other tools like these
-add support for CMAKE_FIND_ROOT_PATH for all FIND_XXX commands, which is a
list of directories which will be prepended to all search directories, right
now as a cmake variable, turning it into a global cmake property may need
some more work
-remove cmTestTestHandler::TryExecutable(), it's unused
-split cmFileCommand::HandleInstall() into slightly smaller functions
Alex
2007-05-17 17:20:44 +00:00
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# use environment variable CC first if defined by user, next use
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2002-11-08 20:46:08 +00:00
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# the cmake variable CMAKE_GENERATOR_CC which can be defined by a generator
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# as a default compiler
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ENH: merge CMake-CrossCompileBasic to HEAD
-add a RESULT_VARIABLE to INCLUDE()
-add CMAKE_TOOLCHAIN_FILE for specifiying your (potentially crosscompiling) toolchain
-have TRY_RUN() complain if you try to use it in crosscompiling mode (which were compiled but cannot run on this system)
-use CMAKE_EXECUTABLE_SUFFIX in TRY_RUN(), probably TRY_RUN won't be able to
run the executables if they have a different suffix because they are
probably crosscompiled, but nevertheless it should be able to find them
-make several cmake variables presettable by the user: CMAKE_C/CXX_COMPILER, CMAKE_C/CXX_OUTPUT_EXTENSION, CMAKE_SYSTEM_NAME, CMAKE_SYSTEM_INFO_FILE
-support prefix for GNU toolchains (arm-elf-gcc, arm-elf-ar, arm-elf-strip etc.)
-move ranlib on OSX from the file command to a command in executed in cmake_install.cmake
-add support for stripping during install in cmake_install.cmake
-split out cl.cmake from Windows-cl.cmake, first (very incomplete) step to support MS crosscompiling tools
-remove stdio.h from the simple C program which checks if the compiler works, since this may not exist for some embedded platforms
-create a new CMakeFindBinUtils.cmake which collects the search fro ar, ranlib, strip, ld, link, install_name_tool and other tools like these
-add support for CMAKE_FIND_ROOT_PATH for all FIND_XXX commands, which is a
list of directories which will be prepended to all search directories, right
now as a cmake variable, turning it into a global cmake property may need
some more work
-remove cmTestTestHandler::TryExecutable(), it's unused
-split cmFileCommand::HandleInstall() into slightly smaller functions
Alex
2007-05-17 17:20:44 +00:00
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# If the internal cmake variable _CMAKE_TOOLCHAIN_PREFIX is set, this is used
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# as prefix for the tools (e.g. arm-elf-gcc, arm-elf-ar etc.). This works
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# currently with the GNU crosscompilers.
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#
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# Sets the following variables:
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# CMAKE_C_COMPILER
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# CMAKE_AR
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# CMAKE_RANLIB
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# CMAKE_COMPILER_IS_GNUCC
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#
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# If not already set before, it also sets
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# _CMAKE_TOOLCHAIN_PREFIX
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2002-10-22 14:34:07 +00:00
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2002-11-08 22:24:45 +00:00
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IF(NOT CMAKE_C_COMPILER)
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2002-12-06 15:02:19 +00:00
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SET(CMAKE_CXX_COMPILER_INIT NOTFOUND)
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2002-12-06 15:09:41 +00:00
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# prefer the environment variable CC
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2002-11-19 17:18:12 +00:00
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IF($ENV{CC} MATCHES ".+")
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2002-11-19 23:17:17 +00:00
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GET_FILENAME_COMPONENT(CMAKE_C_COMPILER_INIT $ENV{CC} PROGRAM PROGRAM_ARGS CMAKE_C_FLAGS_ENV_INIT)
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2005-07-20 19:44:55 +00:00
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IF(CMAKE_C_FLAGS_ENV_INIT)
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2006-01-25 16:41:05 +00:00
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SET(CMAKE_C_COMPILER_ARG1 "${CMAKE_C_FLAGS_ENV_INIT}" CACHE STRING "First argument to C compiler")
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2005-07-20 19:44:55 +00:00
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ENDIF(CMAKE_C_FLAGS_ENV_INIT)
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ENH: merge CMake-CrossCompileBasic to HEAD
-add a RESULT_VARIABLE to INCLUDE()
-add CMAKE_TOOLCHAIN_FILE for specifiying your (potentially crosscompiling) toolchain
-have TRY_RUN() complain if you try to use it in crosscompiling mode (which were compiled but cannot run on this system)
-use CMAKE_EXECUTABLE_SUFFIX in TRY_RUN(), probably TRY_RUN won't be able to
run the executables if they have a different suffix because they are
probably crosscompiled, but nevertheless it should be able to find them
-make several cmake variables presettable by the user: CMAKE_C/CXX_COMPILER, CMAKE_C/CXX_OUTPUT_EXTENSION, CMAKE_SYSTEM_NAME, CMAKE_SYSTEM_INFO_FILE
-support prefix for GNU toolchains (arm-elf-gcc, arm-elf-ar, arm-elf-strip etc.)
-move ranlib on OSX from the file command to a command in executed in cmake_install.cmake
-add support for stripping during install in cmake_install.cmake
-split out cl.cmake from Windows-cl.cmake, first (very incomplete) step to support MS crosscompiling tools
-remove stdio.h from the simple C program which checks if the compiler works, since this may not exist for some embedded platforms
-create a new CMakeFindBinUtils.cmake which collects the search fro ar, ranlib, strip, ld, link, install_name_tool and other tools like these
-add support for CMAKE_FIND_ROOT_PATH for all FIND_XXX commands, which is a
list of directories which will be prepended to all search directories, right
now as a cmake variable, turning it into a global cmake property may need
some more work
-remove cmTestTestHandler::TryExecutable(), it's unused
-split cmFileCommand::HandleInstall() into slightly smaller functions
Alex
2007-05-17 17:20:44 +00:00
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IF(NOT EXISTS ${CMAKE_C_COMPILER_INIT})
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2003-01-21 17:50:48 +00:00
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MESSAGE(FATAL_ERROR "Could not find compiler set in environment variable CC:\n$ENV{CC}.")
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ENH: merge CMake-CrossCompileBasic to HEAD
-add a RESULT_VARIABLE to INCLUDE()
-add CMAKE_TOOLCHAIN_FILE for specifiying your (potentially crosscompiling) toolchain
-have TRY_RUN() complain if you try to use it in crosscompiling mode (which were compiled but cannot run on this system)
-use CMAKE_EXECUTABLE_SUFFIX in TRY_RUN(), probably TRY_RUN won't be able to
run the executables if they have a different suffix because they are
probably crosscompiled, but nevertheless it should be able to find them
-make several cmake variables presettable by the user: CMAKE_C/CXX_COMPILER, CMAKE_C/CXX_OUTPUT_EXTENSION, CMAKE_SYSTEM_NAME, CMAKE_SYSTEM_INFO_FILE
-support prefix for GNU toolchains (arm-elf-gcc, arm-elf-ar, arm-elf-strip etc.)
-move ranlib on OSX from the file command to a command in executed in cmake_install.cmake
-add support for stripping during install in cmake_install.cmake
-split out cl.cmake from Windows-cl.cmake, first (very incomplete) step to support MS crosscompiling tools
-remove stdio.h from the simple C program which checks if the compiler works, since this may not exist for some embedded platforms
-create a new CMakeFindBinUtils.cmake which collects the search fro ar, ranlib, strip, ld, link, install_name_tool and other tools like these
-add support for CMAKE_FIND_ROOT_PATH for all FIND_XXX commands, which is a
list of directories which will be prepended to all search directories, right
now as a cmake variable, turning it into a global cmake property may need
some more work
-remove cmTestTestHandler::TryExecutable(), it's unused
-split cmFileCommand::HandleInstall() into slightly smaller functions
Alex
2007-05-17 17:20:44 +00:00
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ENDIF(NOT EXISTS ${CMAKE_C_COMPILER_INIT})
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2002-12-06 15:02:19 +00:00
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ENDIF($ENV{CC} MATCHES ".+")
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2002-12-06 15:09:41 +00:00
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# next try prefer the compiler specified by the generator
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2002-12-06 15:02:19 +00:00
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IF(CMAKE_GENERATOR_CC)
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2002-12-06 15:16:21 +00:00
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IF(NOT CMAKE_C_COMPILER_INIT)
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SET(CMAKE_C_COMPILER_INIT ${CMAKE_GENERATOR_CC})
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ENDIF(NOT CMAKE_C_COMPILER_INIT)
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2002-12-06 15:02:19 +00:00
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ENDIF(CMAKE_GENERATOR_CC)
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2006-08-29 17:59:15 +00:00
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# finally list compilers to try
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IF(CMAKE_C_COMPILER_INIT)
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SET(CMAKE_C_COMPILER_LIST ${CMAKE_C_COMPILER_INIT})
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ELSE(CMAKE_C_COMPILER_INIT)
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2007-07-02 17:29:36 +00:00
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SET(CMAKE_C_COMPILER_LIST ${_CMAKE_TOOLCHAIN_PREFIX}gcc ${_CMAKE_TOOLCHAIN_PREFIX}cc cl bcc xlc)
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2006-08-29 17:59:15 +00:00
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ENDIF(CMAKE_C_COMPILER_INIT)
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# Find the compiler.
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ENH: merge CMake-CrossCompileBasic to HEAD
-add a RESULT_VARIABLE to INCLUDE()
-add CMAKE_TOOLCHAIN_FILE for specifiying your (potentially crosscompiling) toolchain
-have TRY_RUN() complain if you try to use it in crosscompiling mode (which were compiled but cannot run on this system)
-use CMAKE_EXECUTABLE_SUFFIX in TRY_RUN(), probably TRY_RUN won't be able to
run the executables if they have a different suffix because they are
probably crosscompiled, but nevertheless it should be able to find them
-make several cmake variables presettable by the user: CMAKE_C/CXX_COMPILER, CMAKE_C/CXX_OUTPUT_EXTENSION, CMAKE_SYSTEM_NAME, CMAKE_SYSTEM_INFO_FILE
-support prefix for GNU toolchains (arm-elf-gcc, arm-elf-ar, arm-elf-strip etc.)
-move ranlib on OSX from the file command to a command in executed in cmake_install.cmake
-add support for stripping during install in cmake_install.cmake
-split out cl.cmake from Windows-cl.cmake, first (very incomplete) step to support MS crosscompiling tools
-remove stdio.h from the simple C program which checks if the compiler works, since this may not exist for some embedded platforms
-create a new CMakeFindBinUtils.cmake which collects the search fro ar, ranlib, strip, ld, link, install_name_tool and other tools like these
-add support for CMAKE_FIND_ROOT_PATH for all FIND_XXX commands, which is a
list of directories which will be prepended to all search directories, right
now as a cmake variable, turning it into a global cmake property may need
some more work
-remove cmTestTestHandler::TryExecutable(), it's unused
-split cmFileCommand::HandleInstall() into slightly smaller functions
Alex
2007-05-17 17:20:44 +00:00
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IF (_CMAKE_USER_CXX_COMPILER_PATH)
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FIND_PROGRAM(CMAKE_C_COMPILER NAMES ${CMAKE_C_COMPILER_LIST} PATHS ${_CMAKE_USER_CXX_COMPILER_PATH} DOC "C compiler" NO_DEFAULT_PATH)
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ENDIF (_CMAKE_USER_CXX_COMPILER_PATH)
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2006-08-29 17:59:15 +00:00
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FIND_PROGRAM(CMAKE_C_COMPILER NAMES ${CMAKE_C_COMPILER_LIST} DOC "C compiler")
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ENH: merge CMake-CrossCompileBasic to HEAD
-add a RESULT_VARIABLE to INCLUDE()
-add CMAKE_TOOLCHAIN_FILE for specifiying your (potentially crosscompiling) toolchain
-have TRY_RUN() complain if you try to use it in crosscompiling mode (which were compiled but cannot run on this system)
-use CMAKE_EXECUTABLE_SUFFIX in TRY_RUN(), probably TRY_RUN won't be able to
run the executables if they have a different suffix because they are
probably crosscompiled, but nevertheless it should be able to find them
-make several cmake variables presettable by the user: CMAKE_C/CXX_COMPILER, CMAKE_C/CXX_OUTPUT_EXTENSION, CMAKE_SYSTEM_NAME, CMAKE_SYSTEM_INFO_FILE
-support prefix for GNU toolchains (arm-elf-gcc, arm-elf-ar, arm-elf-strip etc.)
-move ranlib on OSX from the file command to a command in executed in cmake_install.cmake
-add support for stripping during install in cmake_install.cmake
-split out cl.cmake from Windows-cl.cmake, first (very incomplete) step to support MS crosscompiling tools
-remove stdio.h from the simple C program which checks if the compiler works, since this may not exist for some embedded platforms
-create a new CMakeFindBinUtils.cmake which collects the search fro ar, ranlib, strip, ld, link, install_name_tool and other tools like these
-add support for CMAKE_FIND_ROOT_PATH for all FIND_XXX commands, which is a
list of directories which will be prepended to all search directories, right
now as a cmake variable, turning it into a global cmake property may need
some more work
-remove cmTestTestHandler::TryExecutable(), it's unused
-split cmFileCommand::HandleInstall() into slightly smaller functions
Alex
2007-05-17 17:20:44 +00:00
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2006-08-29 17:59:15 +00:00
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IF(CMAKE_C_COMPILER_INIT AND NOT CMAKE_C_COMPILER)
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SET(CMAKE_C_COMPILER "${CMAKE_C_COMPILER_INIT}" CACHE FILEPATH "C compiler" FORCE)
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ENDIF(CMAKE_C_COMPILER_INIT AND NOT CMAKE_C_COMPILER)
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ENH: merge CMake-CrossCompileBasic to HEAD
-add a RESULT_VARIABLE to INCLUDE()
-add CMAKE_TOOLCHAIN_FILE for specifiying your (potentially crosscompiling) toolchain
-have TRY_RUN() complain if you try to use it in crosscompiling mode (which were compiled but cannot run on this system)
-use CMAKE_EXECUTABLE_SUFFIX in TRY_RUN(), probably TRY_RUN won't be able to
run the executables if they have a different suffix because they are
probably crosscompiled, but nevertheless it should be able to find them
-make several cmake variables presettable by the user: CMAKE_C/CXX_COMPILER, CMAKE_C/CXX_OUTPUT_EXTENSION, CMAKE_SYSTEM_NAME, CMAKE_SYSTEM_INFO_FILE
-support prefix for GNU toolchains (arm-elf-gcc, arm-elf-ar, arm-elf-strip etc.)
-move ranlib on OSX from the file command to a command in executed in cmake_install.cmake
-add support for stripping during install in cmake_install.cmake
-split out cl.cmake from Windows-cl.cmake, first (very incomplete) step to support MS crosscompiling tools
-remove stdio.h from the simple C program which checks if the compiler works, since this may not exist for some embedded platforms
-create a new CMakeFindBinUtils.cmake which collects the search fro ar, ranlib, strip, ld, link, install_name_tool and other tools like these
-add support for CMAKE_FIND_ROOT_PATH for all FIND_XXX commands, which is a
list of directories which will be prepended to all search directories, right
now as a cmake variable, turning it into a global cmake property may need
some more work
-remove cmTestTestHandler::TryExecutable(), it's unused
-split cmFileCommand::HandleInstall() into slightly smaller functions
Alex
2007-05-17 17:20:44 +00:00
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ELSE(NOT CMAKE_C_COMPILER)
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2007-05-21 15:26:40 +00:00
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# we only get here if CMAKE_C_COMPILER was specified using -D or a pre-made CMakeCache.txt
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# (e.g. via ctest) or set in CMAKE_TOOLCHAIN_FILE
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2007-07-18 14:52:53 +00:00
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# if CMAKE_C_COMPILER is a list of length 2, use the first item as
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# CMAKE_C_COMPILER and the 2nd one as CMAKE_C_COMPILER_ARG1
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LIST(LENGTH CMAKE_C_COMPILER _CMAKE_C_COMPILER_LIST_LENGTH)
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IF("${_CMAKE_C_COMPILER_LIST_LENGTH}" EQUAL 2)
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LIST(GET CMAKE_C_COMPILER 1 CMAKE_C_COMPILER_ARG1)
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LIST(GET CMAKE_C_COMPILER 0 CMAKE_C_COMPILER)
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ENDIF("${_CMAKE_C_COMPILER_LIST_LENGTH}" EQUAL 2)
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ENH: merge CMake-CrossCompileBasic to HEAD
-add a RESULT_VARIABLE to INCLUDE()
-add CMAKE_TOOLCHAIN_FILE for specifiying your (potentially crosscompiling) toolchain
-have TRY_RUN() complain if you try to use it in crosscompiling mode (which were compiled but cannot run on this system)
-use CMAKE_EXECUTABLE_SUFFIX in TRY_RUN(), probably TRY_RUN won't be able to
run the executables if they have a different suffix because they are
probably crosscompiled, but nevertheless it should be able to find them
-make several cmake variables presettable by the user: CMAKE_C/CXX_COMPILER, CMAKE_C/CXX_OUTPUT_EXTENSION, CMAKE_SYSTEM_NAME, CMAKE_SYSTEM_INFO_FILE
-support prefix for GNU toolchains (arm-elf-gcc, arm-elf-ar, arm-elf-strip etc.)
-move ranlib on OSX from the file command to a command in executed in cmake_install.cmake
-add support for stripping during install in cmake_install.cmake
-split out cl.cmake from Windows-cl.cmake, first (very incomplete) step to support MS crosscompiling tools
-remove stdio.h from the simple C program which checks if the compiler works, since this may not exist for some embedded platforms
-create a new CMakeFindBinUtils.cmake which collects the search fro ar, ranlib, strip, ld, link, install_name_tool and other tools like these
-add support for CMAKE_FIND_ROOT_PATH for all FIND_XXX commands, which is a
list of directories which will be prepended to all search directories, right
now as a cmake variable, turning it into a global cmake property may need
some more work
-remove cmTestTestHandler::TryExecutable(), it's unused
-split cmFileCommand::HandleInstall() into slightly smaller functions
Alex
2007-05-17 17:20:44 +00:00
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# if a compiler was specified by the user but without path,
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2007-05-21 14:58:04 +00:00
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# now try to find it with the full path
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# if it is found, force it into the cache,
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# if not, don't overwrite the setting (which was given by the user) with "NOTFOUND"
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# if the C compiler already had a path, reuse it for searching the CXX compiler
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ENH: merge CMake-CrossCompileBasic to HEAD
-add a RESULT_VARIABLE to INCLUDE()
-add CMAKE_TOOLCHAIN_FILE for specifiying your (potentially crosscompiling) toolchain
-have TRY_RUN() complain if you try to use it in crosscompiling mode (which were compiled but cannot run on this system)
-use CMAKE_EXECUTABLE_SUFFIX in TRY_RUN(), probably TRY_RUN won't be able to
run the executables if they have a different suffix because they are
probably crosscompiled, but nevertheless it should be able to find them
-make several cmake variables presettable by the user: CMAKE_C/CXX_COMPILER, CMAKE_C/CXX_OUTPUT_EXTENSION, CMAKE_SYSTEM_NAME, CMAKE_SYSTEM_INFO_FILE
-support prefix for GNU toolchains (arm-elf-gcc, arm-elf-ar, arm-elf-strip etc.)
-move ranlib on OSX from the file command to a command in executed in cmake_install.cmake
-add support for stripping during install in cmake_install.cmake
-split out cl.cmake from Windows-cl.cmake, first (very incomplete) step to support MS crosscompiling tools
-remove stdio.h from the simple C program which checks if the compiler works, since this may not exist for some embedded platforms
-create a new CMakeFindBinUtils.cmake which collects the search fro ar, ranlib, strip, ld, link, install_name_tool and other tools like these
-add support for CMAKE_FIND_ROOT_PATH for all FIND_XXX commands, which is a
list of directories which will be prepended to all search directories, right
now as a cmake variable, turning it into a global cmake property may need
some more work
-remove cmTestTestHandler::TryExecutable(), it's unused
-split cmFileCommand::HandleInstall() into slightly smaller functions
Alex
2007-05-17 17:20:44 +00:00
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GET_FILENAME_COMPONENT(_CMAKE_USER_C_COMPILER_PATH "${CMAKE_C_COMPILER}" PATH)
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IF(NOT _CMAKE_USER_C_COMPILER_PATH)
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FIND_PROGRAM(CMAKE_C_COMPILER_WITH_PATH NAMES ${CMAKE_C_COMPILER})
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MARK_AS_ADVANCED(CMAKE_C_COMPILER_WITH_PATH)
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2007-05-21 14:58:04 +00:00
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IF(CMAKE_C_COMPILER_WITH_PATH)
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2007-06-26 17:00:42 +00:00
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SET(CMAKE_C_COMPILER ${CMAKE_C_COMPILER_WITH_PATH} CACHE STRING "C compiler" FORCE)
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2007-05-21 14:58:04 +00:00
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ENDIF(CMAKE_C_COMPILER_WITH_PATH)
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ENH: merge CMake-CrossCompileBasic to HEAD
-add a RESULT_VARIABLE to INCLUDE()
-add CMAKE_TOOLCHAIN_FILE for specifiying your (potentially crosscompiling) toolchain
-have TRY_RUN() complain if you try to use it in crosscompiling mode (which were compiled but cannot run on this system)
-use CMAKE_EXECUTABLE_SUFFIX in TRY_RUN(), probably TRY_RUN won't be able to
run the executables if they have a different suffix because they are
probably crosscompiled, but nevertheless it should be able to find them
-make several cmake variables presettable by the user: CMAKE_C/CXX_COMPILER, CMAKE_C/CXX_OUTPUT_EXTENSION, CMAKE_SYSTEM_NAME, CMAKE_SYSTEM_INFO_FILE
-support prefix for GNU toolchains (arm-elf-gcc, arm-elf-ar, arm-elf-strip etc.)
-move ranlib on OSX from the file command to a command in executed in cmake_install.cmake
-add support for stripping during install in cmake_install.cmake
-split out cl.cmake from Windows-cl.cmake, first (very incomplete) step to support MS crosscompiling tools
-remove stdio.h from the simple C program which checks if the compiler works, since this may not exist for some embedded platforms
-create a new CMakeFindBinUtils.cmake which collects the search fro ar, ranlib, strip, ld, link, install_name_tool and other tools like these
-add support for CMAKE_FIND_ROOT_PATH for all FIND_XXX commands, which is a
list of directories which will be prepended to all search directories, right
now as a cmake variable, turning it into a global cmake property may need
some more work
-remove cmTestTestHandler::TryExecutable(), it's unused
-split cmFileCommand::HandleInstall() into slightly smaller functions
Alex
2007-05-17 17:20:44 +00:00
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ENDIF(NOT _CMAKE_USER_C_COMPILER_PATH)
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2002-11-08 22:24:45 +00:00
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ENDIF(NOT CMAKE_C_COMPILER)
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ENH: merge CMake-CrossCompileBasic to HEAD
-add a RESULT_VARIABLE to INCLUDE()
-add CMAKE_TOOLCHAIN_FILE for specifiying your (potentially crosscompiling) toolchain
-have TRY_RUN() complain if you try to use it in crosscompiling mode (which were compiled but cannot run on this system)
-use CMAKE_EXECUTABLE_SUFFIX in TRY_RUN(), probably TRY_RUN won't be able to
run the executables if they have a different suffix because they are
probably crosscompiled, but nevertheless it should be able to find them
-make several cmake variables presettable by the user: CMAKE_C/CXX_COMPILER, CMAKE_C/CXX_OUTPUT_EXTENSION, CMAKE_SYSTEM_NAME, CMAKE_SYSTEM_INFO_FILE
-support prefix for GNU toolchains (arm-elf-gcc, arm-elf-ar, arm-elf-strip etc.)
-move ranlib on OSX from the file command to a command in executed in cmake_install.cmake
-add support for stripping during install in cmake_install.cmake
-split out cl.cmake from Windows-cl.cmake, first (very incomplete) step to support MS crosscompiling tools
-remove stdio.h from the simple C program which checks if the compiler works, since this may not exist for some embedded platforms
-create a new CMakeFindBinUtils.cmake which collects the search fro ar, ranlib, strip, ld, link, install_name_tool and other tools like these
-add support for CMAKE_FIND_ROOT_PATH for all FIND_XXX commands, which is a
list of directories which will be prepended to all search directories, right
now as a cmake variable, turning it into a global cmake property may need
some more work
-remove cmTestTestHandler::TryExecutable(), it's unused
-split cmFileCommand::HandleInstall() into slightly smaller functions
Alex
2007-05-17 17:20:44 +00:00
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MARK_AS_ADVANCED(CMAKE_C_COMPILER)
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IF (NOT _CMAKE_TOOLCHAIN_LOCATION)
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GET_FILENAME_COMPONENT(_CMAKE_TOOLCHAIN_LOCATION "${CMAKE_C_COMPILER}" PATH)
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ENDIF (NOT _CMAKE_TOOLCHAIN_LOCATION)
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2007-04-28 13:35:01 +00:00
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# Build a small source file to identify the compiler.
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2004-09-15 14:32:28 +00:00
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IF(${CMAKE_GENERATOR} MATCHES "Visual Studio")
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2007-04-28 13:35:01 +00:00
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SET(CMAKE_C_COMPILER_ID_RUN 1)
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SET(CMAKE_C_PLATFORM_ID "Windows")
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2004-09-15 14:32:28 +00:00
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2007-04-28 13:35:01 +00:00
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# TODO: Set the compiler id. It is probably MSVC but
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# the user may be using an integrated Intel compiler.
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# SET(CMAKE_C_COMPILER_ID "MSVC")
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ENDIF(${CMAKE_GENERATOR} MATCHES "Visual Studio")
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ENH: merge CMake-CrossCompileBasic to HEAD
-add a RESULT_VARIABLE to INCLUDE()
-add CMAKE_TOOLCHAIN_FILE for specifiying your (potentially crosscompiling) toolchain
-have TRY_RUN() complain if you try to use it in crosscompiling mode (which were compiled but cannot run on this system)
-use CMAKE_EXECUTABLE_SUFFIX in TRY_RUN(), probably TRY_RUN won't be able to
run the executables if they have a different suffix because they are
probably crosscompiled, but nevertheless it should be able to find them
-make several cmake variables presettable by the user: CMAKE_C/CXX_COMPILER, CMAKE_C/CXX_OUTPUT_EXTENSION, CMAKE_SYSTEM_NAME, CMAKE_SYSTEM_INFO_FILE
-support prefix for GNU toolchains (arm-elf-gcc, arm-elf-ar, arm-elf-strip etc.)
-move ranlib on OSX from the file command to a command in executed in cmake_install.cmake
-add support for stripping during install in cmake_install.cmake
-split out cl.cmake from Windows-cl.cmake, first (very incomplete) step to support MS crosscompiling tools
-remove stdio.h from the simple C program which checks if the compiler works, since this may not exist for some embedded platforms
-create a new CMakeFindBinUtils.cmake which collects the search fro ar, ranlib, strip, ld, link, install_name_tool and other tools like these
-add support for CMAKE_FIND_ROOT_PATH for all FIND_XXX commands, which is a
list of directories which will be prepended to all search directories, right
now as a cmake variable, turning it into a global cmake property may need
some more work
-remove cmTestTestHandler::TryExecutable(), it's unused
-split cmFileCommand::HandleInstall() into slightly smaller functions
Alex
2007-05-17 17:20:44 +00:00
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2007-04-28 13:35:01 +00:00
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IF(NOT CMAKE_C_COMPILER_ID_RUN)
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SET(CMAKE_C_COMPILER_ID_RUN 1)
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2004-09-15 14:32:28 +00:00
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2008-02-11 22:00:54 +00:00
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# Each entry in this list is a set of extra flags to try
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# adding to the compile line to see if it helps produce
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# a valid identification file.
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SET(CMAKE_C_COMPILER_ID_TEST_FLAGS
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# Try compiling to an object file only.
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"-c"
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2009-07-08 13:14:56 +00:00
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# Try enabling ANSI mode on HP.
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"-Aa"
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2008-02-11 22:00:54 +00:00
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)
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2007-04-28 13:35:01 +00:00
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# Try to identify the compiler.
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SET(CMAKE_C_COMPILER_ID)
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2008-02-25 14:23:14 +00:00
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FILE(READ ${CMAKE_ROOT}/Modules/CMakePlatformId.h.in
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CMAKE_C_COMPILER_ID_PLATFORM_CONTENT)
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2007-04-28 13:35:01 +00:00
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INCLUDE(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerId.cmake)
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2008-02-25 14:23:14 +00:00
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CMAKE_DETERMINE_COMPILER_ID(C CFLAGS CMakeCCompilerId.c)
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2002-10-22 19:04:52 +00:00
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2007-04-28 13:35:01 +00:00
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# Set old compiler and platform id variables.
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IF("${CMAKE_C_COMPILER_ID}" MATCHES "GNU")
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SET(CMAKE_COMPILER_IS_GNUCC 1)
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ENDIF("${CMAKE_C_COMPILER_ID}" MATCHES "GNU")
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IF("${CMAKE_C_PLATFORM_ID}" MATCHES "MinGW")
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SET(CMAKE_COMPILER_IS_MINGW 1)
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ELSEIF("${CMAKE_C_PLATFORM_ID}" MATCHES "Cygwin")
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SET(CMAKE_COMPILER_IS_CYGWIN 1)
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ENDIF("${CMAKE_C_PLATFORM_ID}" MATCHES "MinGW")
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ENDIF(NOT CMAKE_C_COMPILER_ID_RUN)
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2002-11-08 20:46:08 +00:00
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2008-09-08 21:43:31 +00:00
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# If we have a gcc cross compiler, they have usually some prefix, like
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# e.g. powerpc-linux-gcc, arm-elf-gcc or i586-mingw32msvc-gcc .
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# The other tools of the toolchain usually have the same prefix
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# NAME_WE cannot be used since then this test will fail for names lile
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# "arm-unknown-nto-qnx6.3.0-gcc.exe", where BASENAME would be
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# "arm-unknown-nto-qnx6" instead of the correct "arm-unknown-nto-qnx6.3.0-"
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IF (CMAKE_CROSSCOMPILING
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AND "${CMAKE_C_COMPILER_ID}" MATCHES "GNU"
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AND NOT _CMAKE_TOOLCHAIN_PREFIX)
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GET_FILENAME_COMPONENT(COMPILER_BASENAME "${CMAKE_C_COMPILER}" NAME)
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IF (COMPILER_BASENAME MATCHES "^(.+-)g?cc(\\.exe)?$")
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SET(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_MATCH_1})
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ENDIF (COMPILER_BASENAME MATCHES "^(.+-)g?cc(\\.exe)?$")
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# if "llvm-" is part of the prefix, remove it, since llvm doesn't have its own binutils
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# but uses the regular ar, objcopy, etc. (instead of llvm-objcopy etc.)
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IF ("${_CMAKE_TOOLCHAIN_PREFIX}" MATCHES "(.+-)?llvm-$")
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SET(_CMAKE_TOOLCHAIN_PREFIX ${CMAKE_MATCH_1})
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ENDIF ("${_CMAKE_TOOLCHAIN_PREFIX}" MATCHES "(.+-)?llvm-$")
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ENDIF (CMAKE_CROSSCOMPILING
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AND "${CMAKE_C_COMPILER_ID}" MATCHES "GNU"
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AND NOT _CMAKE_TOOLCHAIN_PREFIX)
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ENH: merge CMake-CrossCompileBasic to HEAD
-add a RESULT_VARIABLE to INCLUDE()
-add CMAKE_TOOLCHAIN_FILE for specifiying your (potentially crosscompiling) toolchain
-have TRY_RUN() complain if you try to use it in crosscompiling mode (which were compiled but cannot run on this system)
-use CMAKE_EXECUTABLE_SUFFIX in TRY_RUN(), probably TRY_RUN won't be able to
run the executables if they have a different suffix because they are
probably crosscompiled, but nevertheless it should be able to find them
-make several cmake variables presettable by the user: CMAKE_C/CXX_COMPILER, CMAKE_C/CXX_OUTPUT_EXTENSION, CMAKE_SYSTEM_NAME, CMAKE_SYSTEM_INFO_FILE
-support prefix for GNU toolchains (arm-elf-gcc, arm-elf-ar, arm-elf-strip etc.)
-move ranlib on OSX from the file command to a command in executed in cmake_install.cmake
-add support for stripping during install in cmake_install.cmake
-split out cl.cmake from Windows-cl.cmake, first (very incomplete) step to support MS crosscompiling tools
-remove stdio.h from the simple C program which checks if the compiler works, since this may not exist for some embedded platforms
-create a new CMakeFindBinUtils.cmake which collects the search fro ar, ranlib, strip, ld, link, install_name_tool and other tools like these
-add support for CMAKE_FIND_ROOT_PATH for all FIND_XXX commands, which is a
list of directories which will be prepended to all search directories, right
now as a cmake variable, turning it into a global cmake property may need
some more work
-remove cmTestTestHandler::TryExecutable(), it's unused
-split cmFileCommand::HandleInstall() into slightly smaller functions
Alex
2007-05-17 17:20:44 +00:00
|
|
|
INCLUDE(CMakeFindBinUtils)
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2009-11-20 02:58:42 +00:00
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IF(MSVC_C_ARCHITECTURE_ID)
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SET(SET_MSVC_C_ARCHITECTURE_ID
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"SET(MSVC_C_ARCHITECTURE_ID ${MSVC_C_ARCHITECTURE_ID})")
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ENDIF(MSVC_C_ARCHITECTURE_ID)
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2002-10-25 18:08:17 +00:00
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# configure variables set in this file for fast reload later on
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2008-02-03 22:24:50 +00:00
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CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CMakeCCompiler.cmake.in
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2008-02-04 15:04:23 +00:00
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"${CMAKE_PLATFORM_ROOT_BIN}/CMakeCCompiler.cmake"
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@ONLY IMMEDIATE # IMMEDIATE must be here for compatibility mode <= 2.0
|
2009-11-20 02:58:42 +00:00
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)
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2004-08-26 18:55:55 +00:00
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SET(CMAKE_C_COMPILER_ENV_VAR "CC")
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