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62 lines
1.9 KiB
Plaintext
62 lines
1.9 KiB
Plaintext
# Copyright (C) Vladimir Prus 2003. Permission to copy, use, modify, sell and
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# distribute this software is granted provided this copyright notice appears in
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# all copies. This software is provided "as is" without express or implied
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# warranty, and with no claim as to its suitability for any purpose.
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# This module defines the 'alias' rule and associated class.
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#
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# Alias is just a main target which returns its source targets without any
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# processing. For example::
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#
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# alias bin : hello test_hello ;
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# alias lib : helpers xml_parser ;
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#
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# Another important use of 'alias' is to conveniently group source files::
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#
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# alias platform-src : win.cpp : <os>NT ;
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# alias platform-src : linux.cpp : <os>LINUX ;
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# exe main : main.cpp platform-src ;
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#
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# Lastly, it's possible to create local alias for some target, with different
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# properties::
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#
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# alias big_lib : : @/external_project/big_lib/<link>static ;
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#
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import targets ;
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import class : class new ;
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import property ;
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import errors : error ;
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import type : type ;
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import regex ;
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rule alias-target-class ( name : project : sources * : requirements * : default-build * )
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{
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basic-target.__init__ $(name) : $(project) : $(sources) : $(requirements)
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: $(default-build) ;
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rule construct ( source-targets * : property-set )
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{
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return $(source-targets) ;
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}
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}
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class alias-target-class : basic-target ;
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# Declares the 'alias' target. It will build sources, and return them unaltered.
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rule alias ( name : sources * : requirements * : default-build * )
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{
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local project = [ CALLER_MODULE ] ;
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targets.main-target-alternative
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[ new alias-target-class $(name) : $(project) : $(sources)
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: [ targets.main-target-requirements $(requirements) : $(project) ]
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: [ targets.main-target-default-build $(default-build) : $(project) ]
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] ;
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}
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IMPORT $(__name__) : alias : : alias ;
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