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# Copyright (c) 2004 Vladimir Prus.
#
# Use, modification and distribution is subject to the Boost Software
# License Version 1.0. (See accompanying file LICENSE_1_0.txt or
# http://www.boost.org/LICENSE_1_0.txt)
# This file implements linking semantic common to all unixes. On unix, static
# libraries must be specified in a fixed order on the linker command line. Generators
# declared there store information about the order and use it property.
import feature ;
import "class" : new ;
import generators ;
import type ;
import set ;
import order ;
import builtin ;
class unix-linking-generator : linking-generator
{
import property-set ;
import type ;
import unix ;
rule __init__ ( id
composing ? : # Specify if generator is composing. The generator will be
# composing if non-empty string is passed, or parameter is
# not given. To make generator non-composing, pass empty
# string ("")
source-types + : target-types + :
requirements * )
{
composing ?= true ;
generator.__init__ $(id) $(composing) : $(source-types) : $(target-types) :
$(requirements) ;
}
rule run ( project name ? : property-set : sources + )
{
local result = [ linking-generator.run $(project) $(name) : $(property-set)
: $(sources) ] ;
unix.set-library-order $(sources) : $(property-set) : $(result[2-]) ;
return $(result) ;
}
rule generated-targets ( sources + : property-set : project name ? )
{
local sources2 ;
local libraries ;
for local l in $(sources)
{
if [ type.is-derived [ $(l).type ] LIB ]
{
libraries += $(l) ;
}
else
{
sources2 += $(l) ;
}
}
sources = $(sources2) [ unix.order-libraries $(libraries) ] ;
return [ linking-generator.generated-targets $(sources) : $(property-set)
: $(project) $(name) ] ;
}
}
class unix-archive-generator : archive-generator
{
import unix ;
rule __init__ ( id composing ? : source-types + : target-types + :
requirements * )
{
composing ?= true ;
archive-generator.__init__ $(id) $(composing) : $(source-types) : $(target-types) :
$(requirements) ;
}
rule run ( project name ? : property-set : sources + )
{
local result = [ archive-generator.run $(project) $(name) : $(property-set)
: $(sources) ] ;
unix.set-library-order $(sources) : $(property-set) : $(result[2-]) ;
return $(result) ;
}
}
class unix-searched-lib-generator : searched-lib-generator
{
import unix ;
rule __init__ ( * : * )
{
generator.__init__
$(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
}
rule optional-properties ( )
{
return $(self.requirements) ;
}
rule run ( project name ? : property-set : sources * )
{
local result = [ searched-lib-generator.run $(project) $(name)
: $(property-set) : $(sources) ] ;
unix.set-library-order $(sources) : $(property-set) : $(result[2-]) ;
return $(result) ;
}
}
class unix-prebuilt-lib-generator : generator
{
import unix ;
rule __init__ ( * : * )
{
generator.__init__ $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
}
rule run ( project name ? : property-set : sources * )
{
local f = [ $(property-set).get <file> ] ;
unix.set-library-order-aux $(f) : $(sources) ;
return $(f) $(sources) ;
}
}
generators.register
[ new unix-prebuilt-lib-generator unix.prebuilt : : LIB
: <file> <toolset>unix ] ;
generators.override unix.prebuilt : builtin.lib-generator ;
# Declare generators
generators.register [ new unix-linking-generator unix.link : LIB OBJ : EXE
: <toolset>unix ] ;
generators.register [ new unix-archive-generator unix.archive : OBJ : STATIC_LIB
: <toolset>unix ] ;
generators.register [ new unix-linking-generator unix.link.dll : LIB OBJ : SHARED_LIB
: <toolset>unix ] ;
generators.register [ new unix-searched-lib-generator
unix.searched-lib-generator : : SEARCHED_LIB : <toolset>unix ] ;
# The derived toolset must specify their own actions.
actions link {
}
actions link.dll {
}
actions archive {
}
actions searched-lib-generator {
}
actions prebuilt {
}
.order = [ new order ] ;
rule set-library-order-aux ( from * : to * )
{
for local f in $(from)
{
for local t in $(to)
{
if $(f) != $(t)
{
$(.order).add-pair $(f) $(t) ;
}
}
}
}
rule set-library-order ( sources * : property-set : result * )
{
local used-libraries ;
local deps = [ $(property-set).dependency ] ;
for local l in $(sources) $(deps:G=)
{
if [ $(l).type ] && [ type.is-derived [ $(l).type ] LIB ]
{
used-libraries += $(l) ;
}
}
local created-libraries ;
for local l in $(result)
{
if [ $(l).type ] && [ type.is-derived [ $(l).type ] LIB ]
{
created-libraries += $(l) ;
}
}
created-libraries = [ set.difference $(created-libraries) : $(used-libraries) ] ;
set-library-order-aux $(created-libraries) : $(used-libraries) ;
}
rule order-libraries ( libraries * )
{
local r = [ $(.order).order $(libraries) ] ;
return $(r) ;
}
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