/usr/share/boost-build/build/version.jam is in libboost1.46-dev 1.46.1-7ubuntu3.
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 | # Copyright 2002, 2003, 2004, 2006 Vladimir Prus
# Copyright 2008 Jurko Gospodnetic
# 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 errors ;
import numbers ;
rule boost-build ( )
{
return "V2 (Milestone 12)" ;
}
rule jam ( )
{
local v = [ modules.peek : JAM_VERSION ] ;
return $(v:J=.) ;
}
rule print ( )
{
ECHO "Boost.Build" [ boost-build ] ;
ECHO "Boost.Jam" [ jam ] ;
}
# Utility rule for testing whether all elements in a sequence are equal to 0.
#
local rule is-all-zeroes ( sequence * )
{
local result = "true" ;
for local e in $(sequence)
{
if $(e) != "0"
{
result = "" ;
}
}
return $(result) ;
}
# Returns "true" if the first version is less than the second one.
#
rule version-less ( lhs + : rhs + )
{
numbers.check $(lhs) ;
numbers.check $(rhs) ;
local done ;
local result ;
while ! $(done) && $(lhs) && $(rhs)
{
if [ numbers.less $(lhs[1]) $(rhs[1]) ]
{
done = "true" ;
result = "true" ;
}
else if [ numbers.less $(rhs[1]) $(lhs[1]) ]
{
done = "true" ;
}
else
{
lhs = $(lhs[2-]) ;
rhs = $(rhs[2-]) ;
}
}
if ( ! $(done) && ! $(lhs) && ! [ is-all-zeroes $(rhs) ] )
{
result = "true" ;
}
return $(result) ;
}
# Returns "true" if the current JAM version version is at least the given
# version.
#
rule check-jam-version ( version + )
{
local version-tag = $(version:J=.) ;
if ! $(version-tag)
{
errors.error Invalid version specifier: : $(version:E="(undefined)") ;
}
if ! $(.jam-version-check.$(version-tag))-is-not-empty
{
local jam-version = [ modules.peek : JAM_VERSION ] ;
if ! $(jam-version)
{
errors.error "Unable to deduce Boost Jam version. Your Boost Jam"
"installation is most likely terribly outdated." ;
}
.jam-version-check.$(version-tag) = "true" ;
if [ version-less [ modules.peek : JAM_VERSION ] : $(version) ]
{
.jam-version-check.$(version-tag) = "" ;
}
}
return $(.jam-version-check.$(version-tag)) ;
}
rule __test__ ( )
{
import assert ;
local jam-version = [ modules.peek : JAM_VERSION ] ;
local future-version = $(jam-version) ;
future-version += "1" ;
assert.true check-jam-version $(jam-version) ;
assert.false check-jam-version $(future-version) ;
assert.true version-less 0 : 1 ;
assert.false version-less 0 : 0 ;
assert.true version-less 1 : 2 ;
assert.false version-less 1 : 1 ;
assert.false version-less 2 : 1 ;
assert.true version-less 3 1 20 : 3 4 10 ;
assert.false version-less 3 1 10 : 3 1 10 ;
assert.false version-less 3 4 10 : 3 1 20 ;
assert.true version-less 3 1 20 5 1 : 3 4 10 ;
assert.false version-less 3 1 10 5 1 : 3 1 10 ;
assert.false version-less 3 4 10 5 1 : 3 1 20 ;
assert.true version-less 3 1 20 : 3 4 10 5 1 ;
assert.true version-less 3 1 10 : 3 1 10 5 1 ;
assert.false version-less 3 4 10 : 3 1 20 5 1 ;
assert.false version-less 3 1 10 : 3 1 10 0 0 ;
assert.false version-less 3 1 10 0 0 : 3 1 10 ;
assert.false version-less 3 1 10 0 : 3 1 10 0 0 ;
assert.false version-less 3 1 10 0 : 03 1 10 0 0 ;
assert.false version-less 03 1 10 0 : 3 1 10 0 0 ;
# TODO: Add tests for invalid input data being sent to version-less.
}
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