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#=============================================================================
# Copyright 2002-2009 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distributed this file outside of CMake, substitute the full
# License text for the above reference.)
# This module is used by the Makefile generator to determin the following variables:
# CMAKE_SYSTEM_NAME - on unix this is uname -s, for windows it is Windows
# CMAKE_SYSTEM_VERSION - on unix this is uname -r, for windows it is empty
# CMAKE_SYSTEM - ${CMAKE_SYSTEM}-${CMAKE_SYSTEM_VERSION}, for windows: ${CMAKE_SYSTEM}
#
# Expected uname -s output:
#
# AIX AIX
# BSD/OS BSD/OS
# FreeBSD FreeBSD
# HP-UX HP-UX
# IRIX IRIX
# Linux Linux
# NetBSD NetBSD
# OpenBSD OpenBSD
# OFS/1 (Digital Unix) OSF1
# SCO OpenServer 5 SCO_SV
# SCO UnixWare 7 UnixWare
# SCO UnixWare (pre release 7) UNIX_SV
# SCO XENIX Xenix
# Solaris SunOS
# SunOS SunOS
# Tru64 Tru64
# Ultrix ULTRIX
# cygwin CYGWIN_NT-5.1
# MacOSX Darwin
# find out on which system cmake runs
IF(CMAKE_HOST_UNIX)
FIND_PROGRAM(CMAKE_UNAME uname /bin /usr/bin /usr/local/bin )
IF(CMAKE_UNAME)
EXEC_PROGRAM(uname ARGS -s OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_NAME)
EXEC_PROGRAM(uname ARGS -r OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_VERSION)
IF(CMAKE_HOST_SYSTEM_NAME MATCHES "Linux")
EXEC_PROGRAM(uname ARGS -m OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_PROCESSOR
RETURN_VALUE val)
ELSE(CMAKE_HOST_SYSTEM_NAME MATCHES "Linux")
EXEC_PROGRAM(uname ARGS -p OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_PROCESSOR
RETURN_VALUE val)
IF("${val}" GREATER 0)
EXEC_PROGRAM(uname ARGS -m OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_PROCESSOR
RETURN_VALUE val)
ENDIF("${val}" GREATER 0)
ENDIF(CMAKE_HOST_SYSTEM_NAME MATCHES "Linux")
# check the return of the last uname -m or -p
IF("${val}" GREATER 0)
SET(CMAKE_HOST_SYSTEM_PROCESSOR "unknown")
ENDIF("${val}" GREATER 0)
SET(CMAKE_UNAME ${CMAKE_UNAME} CACHE INTERNAL "uname command")
# processor may have double quote in the name, and that needs to be removed
STRING(REGEX REPLACE "\"" "" CMAKE_HOST_SYSTEM_PROCESSOR "${CMAKE_HOST_SYSTEM_PROCESSOR}")
STRING(REGEX REPLACE "/" "_" CMAKE_HOST_SYSTEM_PROCESSOR "${CMAKE_HOST_SYSTEM_PROCESSOR}")
ENDIF(CMAKE_UNAME)
ELSE(CMAKE_HOST_UNIX)
IF(CMAKE_HOST_WIN32)
SET (CMAKE_HOST_SYSTEM_NAME "Windows")
SET (CMAKE_HOST_SYSTEM_PROCESSOR "$ENV{PROCESSOR_ARCHITECTURE}")
ENDIF(CMAKE_HOST_WIN32)
ENDIF(CMAKE_HOST_UNIX)
# if a toolchain file is used, the user wants to cross compile.
# in this case read the toolchain file and keep the CMAKE_HOST_SYSTEM_*
# variables around so they can be used in CMakeLists.txt.
# In all other cases, the host and target platform are the same.
IF(CMAKE_TOOLCHAIN_FILE)
# at first try to load it as path relative to the directory from which cmake has been run
INCLUDE("${CMAKE_BINARY_DIR}/${CMAKE_TOOLCHAIN_FILE}" OPTIONAL RESULT_VARIABLE _INCLUDED_TOOLCHAIN_FILE)
IF(NOT _INCLUDED_TOOLCHAIN_FILE)
# if the file isn't found there, check the default locations
INCLUDE("${CMAKE_TOOLCHAIN_FILE}" OPTIONAL RESULT_VARIABLE _INCLUDED_TOOLCHAIN_FILE)
ENDIF(NOT _INCLUDED_TOOLCHAIN_FILE)
IF(_INCLUDED_TOOLCHAIN_FILE)
SET(CMAKE_TOOLCHAIN_FILE "${_INCLUDED_TOOLCHAIN_FILE}" CACHE FILEPATH "The CMake toolchain file" FORCE)
ELSE(_INCLUDED_TOOLCHAIN_FILE)
MESSAGE(FATAL_ERROR "Could not find toolchain file: ${CMAKE_TOOLCHAIN_FILE}")
SET(CMAKE_TOOLCHAIN_FILE "NOTFOUND" CACHE FILEPATH "The CMake toolchain file" FORCE)
ENDIF(_INCLUDED_TOOLCHAIN_FILE)
ENDIF(CMAKE_TOOLCHAIN_FILE)
# if CMAKE_SYSTEM_NAME is here already set, either it comes from a toolchain file
# or it was set via -DCMAKE_SYSTEM_NAME=...
# if that's the case, assume we are crosscompiling
IF(CMAKE_SYSTEM_NAME)
IF(NOT DEFINED CMAKE_CROSSCOMPILING)
SET(CMAKE_CROSSCOMPILING TRUE)
ENDIF(NOT DEFINED CMAKE_CROSSCOMPILING)
SET(PRESET_CMAKE_SYSTEM_NAME TRUE)
ELSE(CMAKE_SYSTEM_NAME)
SET(CMAKE_SYSTEM_NAME "${CMAKE_HOST_SYSTEM_NAME}")
SET(CMAKE_SYSTEM_VERSION "${CMAKE_HOST_SYSTEM_VERSION}")
SET(CMAKE_SYSTEM_PROCESSOR "${CMAKE_HOST_SYSTEM_PROCESSOR}")
SET(CMAKE_CROSSCOMPILING FALSE)
SET(PRESET_CMAKE_SYSTEM_NAME FALSE)
ENDIF(CMAKE_SYSTEM_NAME)
MACRO(ADJUST_CMAKE_SYSTEM_VARIABLES _PREFIX)
IF(NOT ${_PREFIX}_NAME)
SET(${_PREFIX}_NAME "UnknownOS")
ENDIF(NOT ${_PREFIX}_NAME)
# fix for BSD/OS , remove the /
IF(${_PREFIX}_NAME MATCHES BSD.OS)
SET(${_PREFIX}_NAME BSDOS)
ENDIF(${_PREFIX}_NAME MATCHES BSD.OS)
# fix for CYGWIN which has windows version in it
IF(${_PREFIX}_NAME MATCHES CYGWIN)
SET(${_PREFIX}_NAME CYGWIN)
ENDIF(${_PREFIX}_NAME MATCHES CYGWIN)
# set CMAKE_SYSTEM to the CMAKE_SYSTEM_NAME
SET(${_PREFIX} ${${_PREFIX}_NAME})
# if there is a CMAKE_SYSTEM_VERSION then add a -${CMAKE_SYSTEM_VERSION}
IF(${_PREFIX}_VERSION)
SET(${_PREFIX} ${${_PREFIX}}-${${_PREFIX}_VERSION})
ENDIF(${_PREFIX}_VERSION)
ENDMACRO(ADJUST_CMAKE_SYSTEM_VARIABLES _PREFIX)
ADJUST_CMAKE_SYSTEM_VARIABLES(CMAKE_SYSTEM)
ADJUST_CMAKE_SYSTEM_VARIABLES(CMAKE_HOST_SYSTEM)
# this file is also executed from cpack, then we don't need to generate these files
# in this case there is no CMAKE_BINARY_DIR
IF(CMAKE_BINARY_DIR)
# write entry to the log file
IF(PRESET_CMAKE_SYSTEM_NAME)
FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"The target system is: ${CMAKE_SYSTEM_NAME} - ${CMAKE_SYSTEM_VERSION} - ${CMAKE_SYSTEM_PROCESSOR}\n")
FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"The host system is: ${CMAKE_HOST_SYSTEM_NAME} - ${CMAKE_HOST_SYSTEM_VERSION} - ${CMAKE_HOST_SYSTEM_PROCESSOR}\n")
ELSE(PRESET_CMAKE_SYSTEM_NAME)
FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"The system is: ${CMAKE_SYSTEM_NAME} - ${CMAKE_SYSTEM_VERSION} - ${CMAKE_SYSTEM_PROCESSOR}\n")
ENDIF(PRESET_CMAKE_SYSTEM_NAME)
# if a toolchain file is used, it needs to be included in the configured file,
# so settings done there are also available if they don't go in the cache and in TRY_COMPILE()
SET(INCLUDE_CMAKE_TOOLCHAIN_FILE_IF_REQUIRED)
IF(DEFINED CMAKE_TOOLCHAIN_FILE)
SET(INCLUDE_CMAKE_TOOLCHAIN_FILE_IF_REQUIRED "INCLUDE(\"${CMAKE_TOOLCHAIN_FILE}\")")
ENDIF(DEFINED CMAKE_TOOLCHAIN_FILE)
# configure variables set in this file for fast reload, the template file is defined at the top of this file
CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CMakeSystem.cmake.in
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake
IMMEDIATE @ONLY)
ENDIF(CMAKE_BINARY_DIR)
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