176fe63d15
cmMakefile.cxx, but now in the platform files and are now valid for the target platform, not the host platform. New variables CMAKE_HOST_WIN32, CMAKE_HOST_UNIX, CMAKE_HOST_APPLE and CMAKE_HOST_CYGWIN have been added in cmMakefile.cxx (...and have now to be used in all cmake files which are executed before CMakeSystemSpecificInformation.cmake is loaded). For compatibility the old set is set to the new one in CMakeDetermineSystem.cmake and reset before the system platform files are loaded, so custom language or compiler modules which use these should still work. Alex
177 lines
7.5 KiB
CMake
177 lines
7.5 KiB
CMake
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# This module is used by the Makefile generator to determin the following variables:
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# CMAKE_SYSTEM_NAME - on unix this is uname -s, for windows it is Windows
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# CMAKE_SYSTEM_VERSION - on unix this is uname -r, for windows it is empty
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# CMAKE_SYSTEM - ${CMAKE_SYSTEM}-${CMAKE_SYSTEM_VERSION}, for windows: ${CMAKE_SYSTEM}
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#
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# Expected uname -s output:
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#
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# AIX AIX
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# BSD/OS BSD/OS
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# FreeBSD FreeBSD
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# HP-UX HP-UX
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# IRIX IRIX
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# Linux Linux
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# NetBSD NetBSD
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# OpenBSD OpenBSD
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# OFS/1 (Digital Unix) OSF1
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# SCO OpenServer 5 SCO_SV
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# SCO UnixWare 7 UnixWare
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# SCO UnixWare (pre release 7) UNIX_SV
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# SCO XENIX Xenix
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# Solaris SunOS
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# SunOS SunOS
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# Tru64 Tru64
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# Ultrix ULTRIX
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# cygwin CYGWIN_NT-5.1
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# MacOSX Darwin
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# find out on which system cmake runs
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IF(CMAKE_HOST_UNIX)
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FIND_PROGRAM(CMAKE_UNAME uname /bin /usr/bin /usr/local/bin )
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IF(CMAKE_UNAME)
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EXEC_PROGRAM(uname ARGS -s OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_NAME)
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EXEC_PROGRAM(uname ARGS -r OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_VERSION)
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IF(CMAKE_HOST_SYSTEM_NAME MATCHES "Linux")
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EXEC_PROGRAM(uname ARGS -m OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_PROCESSOR
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RETURN_VALUE val)
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ELSE(CMAKE_HOST_SYSTEM_NAME MATCHES "Linux")
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EXEC_PROGRAM(uname ARGS -p OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_PROCESSOR
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RETURN_VALUE val)
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IF("${val}" GREATER 0)
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EXEC_PROGRAM(uname ARGS -m OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_PROCESSOR
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RETURN_VALUE val)
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ENDIF("${val}" GREATER 0)
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ENDIF(CMAKE_HOST_SYSTEM_NAME MATCHES "Linux")
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# check the return of the last uname -m or -p
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IF("${val}" GREATER 0)
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SET(CMAKE_HOST_SYSTEM_PROCESSOR "unknown")
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ENDIF("${val}" GREATER 0)
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SET(CMAKE_UNAME ${CMAKE_UNAME} CACHE INTERNAL "uname command")
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# processor may have double quote in the name, and that needs to be removed
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STRING(REGEX REPLACE "\"" "" CMAKE_HOST_SYSTEM_PROCESSOR "${CMAKE_HOST_SYSTEM_PROCESSOR}")
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STRING(REGEX REPLACE "/" "_" CMAKE_HOST_SYSTEM_PROCESSOR "${CMAKE_HOST_SYSTEM_PROCESSOR}")
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ENDIF(CMAKE_UNAME)
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ELSE(CMAKE_HOST_UNIX)
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IF(CMAKE_HOST_WIN32)
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SET (CMAKE_HOST_SYSTEM_NAME "Windows")
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SET (CMAKE_HOST_SYSTEM_PROCESSOR "$ENV{PROCESSOR_ARCHITECTURE}")
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ENDIF(CMAKE_HOST_WIN32)
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ENDIF(CMAKE_HOST_UNIX)
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# this is for compatibility
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# with cmake 2.4 these variables were compiled in
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# now that cmake has to separate between host and target platform
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# two sets are needed. For compatibility the old set of variables is here
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# set to the compiled-in values, so they still work in custom
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# language or compiler modules where they might be used.
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# After that they are reset in CMakeSystemSpecificInformation.cmake
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# and then set according to the current target platform in the Modules/${CMAKE_SYSTEM_NAME}.cmake file
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SET(APPLE ${CMAKE_HOST_APPLE})
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SET(UNIX ${CMAKE_HOST_UNIX})
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SET(CYGWIN ${CMAKE_HOST_CYGWIN})
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SET(WIN32 ${CMAKE_HOST_WIN32})
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# if a toolchain file is used, the user wants to cross compile.
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# in this case read the toolchain file and keep the CMAKE_HOST_SYSTEM_*
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# variables around so they can be used in CMakeLists.txt.
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# In all other cases, the host and target platform are the same.
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IF(CMAKE_TOOLCHAIN_FILE)
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# at first try to load it as path relative to the directory from which cmake has been run
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INCLUDE("${CMAKE_BINARY_DIR}/${CMAKE_TOOLCHAIN_FILE}" OPTIONAL RESULT_VARIABLE _INCLUDED_TOOLCHAIN_FILE)
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IF(NOT _INCLUDED_TOOLCHAIN_FILE)
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# if the file isn't found there, check the default locations
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INCLUDE("${CMAKE_TOOLCHAIN_FILE}" OPTIONAL RESULT_VARIABLE _INCLUDED_TOOLCHAIN_FILE)
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ENDIF(NOT _INCLUDED_TOOLCHAIN_FILE)
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IF(_INCLUDED_TOOLCHAIN_FILE)
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SET(CMAKE_TOOLCHAIN_FILE "${_INCLUDED_TOOLCHAIN_FILE}")
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ELSE(_INCLUDED_TOOLCHAIN_FILE)
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MESSAGE(FATAL_ERROR "Could not find toolchain file: ${CMAKE_TOOLCHAIN_FILE}")
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ENDIF(_INCLUDED_TOOLCHAIN_FILE)
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ENDIF(CMAKE_TOOLCHAIN_FILE)
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# if CMAKE_SYSTEM_NAME is here already set, either it comes from a toolchain file
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# or it was set via -DCMAKE_SYSTEM_NAME=...
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# if that's the case, assume we are crosscompiling
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IF(CMAKE_SYSTEM_NAME)
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IF(NOT DEFINED CMAKE_CROSSCOMPILING)
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SET(CMAKE_CROSSCOMPILING TRUE)
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ENDIF(NOT DEFINED CMAKE_CROSSCOMPILING)
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SET(PRESET_CMAKE_SYSTEM_NAME TRUE)
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ELSE(CMAKE_SYSTEM_NAME)
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SET(CMAKE_SYSTEM_NAME "${CMAKE_HOST_SYSTEM_NAME}")
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SET(CMAKE_SYSTEM_VERSION "${CMAKE_HOST_SYSTEM_VERSION}")
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SET(CMAKE_SYSTEM_PROCESSOR "${CMAKE_HOST_SYSTEM_PROCESSOR}")
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SET(CMAKE_CROSSCOMPILING FALSE)
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SET(PRESET_CMAKE_SYSTEM_NAME FALSE)
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ENDIF(CMAKE_SYSTEM_NAME)
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MACRO(ADJUST_CMAKE_SYSTEM_VARIABLES _PREFIX)
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IF(NOT ${_PREFIX}_NAME)
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SET(${_PREFIX}_NAME "UnknownOS")
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ENDIF(NOT ${_PREFIX}_NAME)
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# fix for BSD/OS , remove the /
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IF(${_PREFIX}_NAME MATCHES BSD.OS)
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SET(${_PREFIX}_NAME BSDOS)
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ENDIF(${_PREFIX}_NAME MATCHES BSD.OS)
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# fix for CYGWIN which has windows version in it
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IF(${_PREFIX}_NAME MATCHES CYGWIN)
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SET(${_PREFIX}_NAME CYGWIN)
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ENDIF(${_PREFIX}_NAME MATCHES CYGWIN)
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# set CMAKE_SYSTEM to the CMAKE_SYSTEM_NAME
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SET(${_PREFIX} ${${_PREFIX}_NAME})
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# if there is a CMAKE_SYSTEM_VERSION then add a -${CMAKE_SYSTEM_VERSION}
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IF(${_PREFIX}_VERSION)
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SET(${_PREFIX} ${${_PREFIX}}-${${_PREFIX}_VERSION})
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ENDIF(${_PREFIX}_VERSION)
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ENDMACRO(ADJUST_CMAKE_SYSTEM_VARIABLES _PREFIX)
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ADJUST_CMAKE_SYSTEM_VARIABLES(CMAKE_SYSTEM)
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ADJUST_CMAKE_SYSTEM_VARIABLES(CMAKE_HOST_SYSTEM)
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# this file is also executed from cpack, then we don't need to generate these files
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# in this case there is no CMAKE_BINARY_DIR
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IF(CMAKE_BINARY_DIR)
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# write entry to the log file
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IF(PRESET_CMAKE_SYSTEM_NAME)
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FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"The target system is: ${CMAKE_SYSTEM_NAME} - ${CMAKE_SYSTEM_VERSION} - ${CMAKE_SYSTEM_PROCESSOR}\n")
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FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"The host system is: ${CMAKE_HOST_SYSTEM_NAME} - ${CMAKE_HOST_SYSTEM_VERSION} - ${CMAKE_HOST_SYSTEM_PROCESSOR}\n")
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ELSE(PRESET_CMAKE_SYSTEM_NAME)
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FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"The system is: ${CMAKE_SYSTEM_NAME} - ${CMAKE_SYSTEM_VERSION} - ${CMAKE_SYSTEM_PROCESSOR}\n")
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ENDIF(PRESET_CMAKE_SYSTEM_NAME)
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# if a toolchain file is used use configure_file() to copy it into the
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# build tree, because this way e.g. ${CMAKE_SOURCE_DIR} will be replaced
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# with its full path, and so it will also work when used in try_compile()
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IF (CMAKE_TOOLCHAIN_FILE)
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SET(_OWN_DIR ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY})
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CONFIGURE_FILE(${CMAKE_TOOLCHAIN_FILE}
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeToolchainFile.cmake)
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CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CMakeSystemWithToolchainFile.cmake.in
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake
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IMMEDIATE @ONLY)
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ELSE (CMAKE_TOOLCHAIN_FILE)
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# configure variables set in this file for fast reload, the template file is defined at the top of this file
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CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CMakeSystem.cmake.in
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${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake
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IMMEDIATE @ONLY)
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ENDIF (CMAKE_TOOLCHAIN_FILE)
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ENDIF(CMAKE_BINARY_DIR)
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