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Diffstat (limited to 'jam-files/boost-build/tools/pch.jam')
-rw-r--r-- | jam-files/boost-build/tools/pch.jam | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/jam-files/boost-build/tools/pch.jam b/jam-files/boost-build/tools/pch.jam deleted file mode 100644 index 0c6e98fa..00000000 --- a/jam-files/boost-build/tools/pch.jam +++ /dev/null @@ -1,95 +0,0 @@ -# Copyright (c) 2005 Reece H. Dunn. -# Copyright 2006 Ilya Sokolov -# -# 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) - -##### Using Precompiled Headers (Quick Guide) ##### -# -# Make precompiled mypch.hpp: -# -# import pch ; -# -# cpp-pch mypch -# : # sources -# mypch.hpp -# : # requiremnts -# <toolset>msvc:<source>mypch.cpp -# ; -# -# Add cpp-pch to sources: -# -# exe hello -# : main.cpp hello.cpp mypch -# ; - -import "class" : new ; -import type ; -import feature ; -import generators ; - -type.register PCH : pch ; - -type.register C_PCH : : PCH ; -type.register CPP_PCH : : PCH ; - -# Control precompiled header (PCH) generation. -feature.feature pch : - on - off - : propagated ; - - -feature.feature pch-header : : free dependency ; -feature.feature pch-file : : free dependency ; - -# Base PCH generator. The 'run' method has the logic to prevent this generator -# from being run unless it's being used for a top-level PCH target. -class pch-generator : generator -{ - import property-set ; - - rule action-class ( ) - { - return compile-action ; - } - - rule run ( project name ? : property-set : sources + ) - { - if ! $(name) - { - # Unless this generator is invoked as the top-most generator for a - # main target, fail. This allows using 'H' type as input type for - # this generator, while preventing Boost.Build to try this generator - # when not explicitly asked for. - # - # One bad example is msvc, where pch generator produces both PCH - # target and OBJ target, so if there's any header generated (like by - # bison, or by msidl), we'd try to use pch generator to get OBJ from - # that H, which is completely wrong. By restricting this generator - # only to pch main target, such problem is solved. - } - else - { - local r = [ run-pch $(project) $(name) - : [ $(property-set).add-raw <define>BOOST_BUILD_PCH_ENABLED ] - : $(sources) ] ; - return [ generators.add-usage-requirements $(r) - : <define>BOOST_BUILD_PCH_ENABLED ] ; - } - } - - # This rule must be overridden by the derived classes. - rule run-pch ( project name ? : property-set : sources + ) - { - } -} - - -# NOTE: requirements are empty, default pch generator can be applied when -# pch=off. -generators.register - [ new dummy-generator pch.default-c-pch-generator : : C_PCH ] ; -generators.register - [ new dummy-generator pch.default-cpp-pch-generator : : CPP_PCH ] ; |