/usr/share/boost-build/util/os.jam is in libboost1.49-dev 1.49.0-3.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 | # Copyright 2001, 2002, 2003, 2005 Dave Abrahams
# Copyright 2006 Rene Rivera
# Copyright 2003, 2005 Vladimir Prus
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
import modules ;
import string ;
# Return the value(s) of the given environment variable(s) at the time bjam was
# invoked.
rule environ ( variable-names + )
{
return [ modules.peek .ENVIRON : $(variable-names) ] ;
}
.name = [ modules.peek : OS ] ;
.platform = [ modules.peek : OSPLAT ] ;
.version = [ modules.peek : OSVER ] ;
local rule constant ( c : os ? )
{
os ?= $(.name) ;
# First look for a platform-specific name, then the general value.
local variables = .$(c)-$(os) .$(c) ;
local result = $($(variables)) ;
return $(result[1]) ;
}
rule get-constant ( os ? )
{
# Find the name of the constant being accessed, which is equal to the name
# used to invoke us.
local bt = [ BACKTRACE 1 ] ;
local rulename = [ MATCH ([^.]*)$ : $(bt[4]) ] ;
return [ constant $(rulename) : $(os) ] ;
}
# export all the common constants
.constants = name platform version shared-library-path-variable path-separator executable-path-variable executable-suffix ;
for local constant in $(.constants)
{
IMPORT $(__name__) : get-constant : $(__name__) : $(constant) ;
}
EXPORT $(__name__) : $(.constants) ;
.executable-path-variable-NT = PATH ;
# On Windows the case and capitalization of PATH is not always predictable, so
# let's find out what variable name was really set.
if $(.name) = NT
{
for local n in [ VARNAMES .ENVIRON ]
{
if $(n:L) = path
{
.executable-path-variable-NT = $(n) ;
}
}
}
# Specific constants for various platforms. There's no need to define any
# constant whose value would be the same as the default, below.
.shared-library-path-variable-NT = $(.executable-path-variable-NT) ;
.path-separator-NT = ";" ;
.expand-variable-prefix-NT = % ;
.expand-variable-suffix-NT = % ;
.executable-suffix-NT = .exe ;
.shared-library-path-variable-CYGWIN = PATH ;
.shared-library-path-variable-MACOSX = DYLD_LIBRARY_PATH ;
.shared-library-path-variable-AIX = LIBPATH ;
# Default constants
.shared-library-path-variable = LD_LIBRARY_PATH ;
.path-separator = ":" ;
.expand-variable-prefix = $ ;
.expand-variable-suffix = "" ;
.executable-path-variable = PATH ;
.executable-suffix = "" ;
# Return a list of the directories in the PATH. Yes, that information is (sort
# of) available in the global module, but jam code can change those values, and
# it isn't always clear what case/capitalization to use when looking. This rule
# is a more reliable way to get there.
rule executable-path ( )
{
return [ string.words [ environ [ constant executable-path-variable ] ]
: [ constant path-separator ] ] ;
}
# Initialize the list of home directories for the current user depending on the
# OS.
if $(.name) = NT
{
local home = [ environ HOMEDRIVE HOMEPATH ] ;
.home-directories = $(home[1])$(home[2]) [ environ HOME ] [ environ USERPROFILE ] ;
}
else
{
.home-directories = [ environ HOME ] ;
}
# Can't use 'constant' mechanism because it only returns 1-element values.
rule home-directories ( )
{
return $(.home-directories) ;
}
# Return the string needed to represent the expansion of the named shell
# variable.
rule expand-variable ( variable )
{
local prefix = [ constant expand-variable-prefix ] ;
local suffix = [ constant expand-variable-suffix ] ;
return $(prefix)$(variable)$(suffix) ;
}
# Returns true if running on windows, whether in cygwin or not.
rule on-windows ( )
{
local result ;
if [ modules.peek : NT ]
{
result = true ;
}
else if [ modules.peek : UNIX ]
{
switch [ modules.peek : JAMUNAME ]
{
case CYGWIN* :
{
result = true ;
}
}
}
return $(result) ;
}
if ! [ on-windows ]
{
.on-unix = 1 ;
}
rule on-unix
{
return $(.on-unix) ;
}
rule __test__
{
import assert ;
if ! ( --quiet in [ modules.peek : ARGV ] )
{
ECHO os: name= [ name ] ;
ECHO os: version= [ version ] ;
}
assert.true name ;
}
|