1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
# 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: ${CMAKE_SYSTEM}
#
# Expected uname -s output:
#
# AIX AIX
# BSD/OS BSD/OS
# FreeBSD FreeBSD
# HP-UX HP-UX
# IRIX IRIX
# Linux Linux
# NetBSD NetBSD
# OpenBSD OpenBSD
# OFS/1 (Digital Unix) OSF1
# SCO OpenServer 5 SCO_SV
# SCO UnixWare 7 UnixWare
# SCO UnixWare (pre release 7) UNIX_SV
# SCO XENIX Xenix
# Solaris SunOS
# SunOS SunOS
# Tru64 Tru64
# Ultrix ULTRIX
# cygwin CYGWIN_NT-5.1
# MacOSX Darwin
# find out on which system cmake runs
IF(UNIX)
FIND_PROGRAM(CMAKE_UNAME uname /bin /usr/bin /usr/local/bin )
IF(CMAKE_UNAME)
EXEC_PROGRAM(uname ARGS -s OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_NAME)
EXEC_PROGRAM(uname ARGS -r OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_VERSION)
IF(CMAKE_HOST_SYSTEM_NAME MATCHES "Linux")
EXEC_PROGRAM(uname ARGS -m OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_PROCESSOR
RETURN_VALUE val)
ELSE(CMAKE_HOST_SYSTEM_NAME MATCHES "Linux")
EXEC_PROGRAM(uname ARGS -p OUTPUT_VARIABLE CMAKE_HOST_SYSTEM_PROCESSOR
RETURN_VALUE val)
IF("${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 "${CMAKE_HOST_SYSTEM_PROCESSOR}")
ENDIF(CMAKE_UNAME)
ELSE(UNIX)
IF(WIN32)
SET (CMAKE_HOST_SYSTEM_NAME "Windows")
SET (CMAKE_HOST_SYSTEM_PROCESSOR "$ENV{PROCESSOR_ARCHITECTURE}")
ENDIF(WIN32)
ENDIF(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}")
ELSE(_INCLUDED_TOOLCHAIN_FILE)
MESSAGE(FATAL_ERROR "Could not find toolchain file: ${CMAKE_TOOLCHAIN_FILE}")
ENDIF(_INCLUDED_TOOLCHAIN_FILE)
ENDIF(CMAKE_TOOLCHAIN_FILE)
# if CMAKE_SYSTEM_NAME is here already set, either it comes from a toolchain file
# or it was set via -DCMAKE_SYSTEM_NAME=...
# if that's the case, assume we are crosscompiling
IF(CMAKE_SYSTEM_NAME)
IF(NOT DEFINED CMAKE_CROSSCOMPILING)
SET(CMAKE_CROSSCOMPILING TRUE)
ENDIF(NOT DEFINED CMAKE_CROSSCOMPILING)
SET(PRESET_CMAKE_SYSTEM_NAME TRUE)
ELSE(CMAKE_SYSTEM_NAME)
SET(CMAKE_SYSTEM_NAME "${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)
# 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 use configure_file() to copy it into the
# build tree, because this way e.g. ${CMAKE_SOURCE_DIR} will be replaced
# with its full path, and so it will also work when used in try_compile()
IF (CMAKE_TOOLCHAIN_FILE)
SET(_OWN_DIR ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY})
CONFIGURE_FILE(${CMAKE_TOOLCHAIN_FILE}
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeToolchainFile.cmake)
CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CMakeSystemWithToolchainFile.cmake.in
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake
IMMEDIATE @ONLY)
ELSE (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_TOOLCHAIN_FILE)
|
