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# 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: ${CMAKE_SYSTEM}
#
# Expected uname -s output:
#
# AIX AIX
# BSD/OS BSD/OS
# FreeBSD FreeBSD
# HP-UX HP-UX
# IRIX IRIX
# Linux Linux
# NetBSD NetBSD
# OpenBSD OpenBSD
# OFS/1 (Digital Unix) OSF1
# SCO OpenServer 5 SCO_SV
# SCO UnixWare 7 UnixWare
# SCO UnixWare (pre release 7) UNIX_SV
# SCO XENIX Xenix
# Solaris SunOS
# SunOS SunOS
# Tru64 Tru64
# Ultrix ULTRIX
# cygwin CYGWIN_NT-5.1
# MacOSX Darwin
IF(CMAKE_TOOLCHAIN_FILE)
# at first try to load it as path relative to the directory from which cmake has been run
INCLUDE("${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}")
ELSE(_INCLUDED_TOOLCHAIN_FILE)
MESSAGE(FATAL_ERROR "Could not find toolchain file: ${CMAKE_TOOLCHAIN_FILE}")
ENDIF(_INCLUDED_TOOLCHAIN_FILE)
IF(NOT DEFINED CMAKE_CROSSCOMPILING)
SET(CMAKE_CROSSCOMPILING TRUE)
ENDIF(NOT DEFINED CMAKE_CROSSCOMPILING)
ENDIF(CMAKE_TOOLCHAIN_FILE)
IF(NOT CMAKE_SYSTEM_NAME)
IF(UNIX)
FIND_PROGRAM(CMAKE_UNAME uname /bin /usr/bin /usr/local/bin )
IF(CMAKE_UNAME)
EXEC_PROGRAM(uname ARGS -s OUTPUT_VARIABLE CMAKE_SYSTEM_NAME)
EXEC_PROGRAM(uname ARGS -r OUTPUT_VARIABLE CMAKE_SYSTEM_VERSION)
IF(CMAKE_SYSTEM_NAME MATCHES "Linux")
EXEC_PROGRAM(uname ARGS -m OUTPUT_VARIABLE CMAKE_SYSTEM_PROCESSOR
RETURN_VALUE val)
ELSE(CMAKE_SYSTEM_NAME MATCHES "Linux")
EXEC_PROGRAM(uname ARGS -p OUTPUT_VARIABLE CMAKE_SYSTEM_PROCESSOR
RETURN_VALUE val)
IF("${val}" GREATER 0)
EXEC_PROGRAM(uname ARGS -m OUTPUT_VARIABLE CMAKE_SYSTEM_PROCESSOR
RETURN_VALUE val)
ENDIF("${val}" GREATER 0)
ENDIF(CMAKE_SYSTEM_NAME MATCHES "Linux")
# check the return of the last uname -m or -p
IF("${val}" GREATER 0)
SET(CMAKE_SYSTEM_PROCESSOR "unknown")
ENDIF("${val}" GREATER 0)
SET(CMAKE_UNAME ${CMAKE_UNAME} CACHE INTERNAL "uname command")
# processor may have double quote in the name, and that needs to be removed
STRING(REGEX REPLACE "\"" "" CMAKE_SYSTEM_PROCESSOR "${CMAKE_SYSTEM_PROCESSOR}")
STRING(REGEX REPLACE "/" "_" CMAKE_SYSTEM_PROCESSOR "${CMAKE_SYSTEM_PROCESSOR}")
ENDIF(CMAKE_UNAME)
ELSE(UNIX)
IF(WIN32)
SET (CMAKE_SYSTEM_NAME "Windows")
SET (CMAKE_SYSTEM_PROCESSOR "$ENV{PROCESSOR_ARCHITECTURE}")
ENDIF(WIN32)
ENDIF(UNIX)
ENDIF(NOT CMAKE_SYSTEM_NAME)
IF(NOT CMAKE_SYSTEM_NAME)
SET(CMAKE_SYSTEM_NAME "UnknownOS")
ENDIF(NOT CMAKE_SYSTEM_NAME)
# fix for BSD/OS , remove the /
IF(CMAKE_SYSTEM_NAME MATCHES BSD.OS)
SET(CMAKE_SYSTEM_NAME BSDOS)
ENDIF(CMAKE_SYSTEM_NAME MATCHES BSD.OS)
# fix for CYGWIN which has windows version in it
IF(CMAKE_SYSTEM_NAME MATCHES CYGWIN)
SET(CMAKE_SYSTEM_NAME CYGWIN)
ENDIF(CMAKE_SYSTEM_NAME MATCHES CYGWIN)
# set CMAKE_SYSTEM to the CMAKE_SYSTEM_NAME
SET(CMAKE_SYSTEM ${CMAKE_SYSTEM_NAME})
# if there is a CMAKE_SYSTEM_VERSION then add a -${CMAKE_SYSTEM_VERSION}
IF(CMAKE_SYSTEM_VERSION)
SET(CMAKE_SYSTEM ${CMAKE_SYSTEM}-${CMAKE_SYSTEM_VERSION})
ENDIF(CMAKE_SYSTEM_VERSION)
FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"The system is: ${CMAKE_SYSTEM_NAME} - ${CMAKE_SYSTEM_VERSION} - ${CMAKE_SYSTEM_PROCESSOR}\n")
# configure variables set in this file for fast reload
CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CMakeSystem.cmake.in
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake
IMMEDIATE)
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