Really fix boost build

2 files changed, 2 insertions, 1099 deletions

diff --git a/deps/Boost/Boost.cmake b/deps/Boost/Boost.cmake
index 7acb75159..fd2f202e9 100644
--- a/deps/Boost/Boost.cmake
+++ b/deps/Boost/Boost.cmake
@@ -8,12 +8,10 @@ else()
     set(_build_cmd ./b2)
 endif()
 
-set(_patch_command "") #${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_LIST_DIR}/common.jam ./tools/build/src/tools/common.jam)
-
 if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
     set(_boost_toolset gcc)
     configure_file(${CMAKE_CURRENT_LIST_DIR}/user-config.jam boost-user-config.jam)
-    set(_patch_command ${_patch_command} && ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_BINARY_DIR}/boost-user-config.jam ./tools/build/src/tools/user-config.jam)
+    set(_patch_command ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_BINARY_DIR}/boost-user-config.jam ./tools/build/src/tools/user-config.jam)
 elseif (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
     # https://cmake.org/cmake/help/latest/variable/MSVC_VERSION.html
     if (MSVC_VERSION EQUAL 1800)
@@ -42,7 +40,7 @@ elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
     else()
         set(_boost_toolset clang)
         configure_file(${CMAKE_CURRENT_LIST_DIR}/user-config.jam boost-user-config.jam)
-        set(_patch_command ${_patch_command} && ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_BINARY_DIR}/boost-user-config.jam ./tools/build/src/tools/user-config.jam)
+        set(_patch_command ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_BINARY_DIR}/boost-user-config.jam ./tools/build/src/tools/user-config.jam)
     endif()
 elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
     set(_boost_toolset "intel")
diff --git a/deps/Boost/common.jam b/deps/Boost/common.jam
deleted file mode 100644
index 75d995aa1..000000000
--- a/deps/Boost/common.jam
+++ /dev/null
@@ -1,1095 +0,0 @@
-# Copyright 2003, 2005 Dave Abrahams
-# Copyright 2005, 2006 Rene Rivera
-# Copyright 2005 Toon Knapen
-# Copyright 2002, 2003, 2004, 2005, 2006 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)
-
-#   Provides actions common to all toolsets, such as creating directories and
-# removing files.
-
-import os ;
-import modules ;
-import utility ;
-import print ;
-import type ;
-import feature ;
-import errors ;
-import path ;
-import sequence ;
-import toolset ;
-import virtual-target ;
-import numbers ;
-
-if [ MATCH (--debug-configuration) : [ modules.peek : ARGV ] ]
-{
-    .debug-configuration = true ;
-}
-if [ MATCH (--show-configuration) : [ modules.peek : ARGV ] ]
-{
-    .show-configuration = true ;
-}
-
-# Configurations
-#
-# The following class helps to manage toolset configurations. Each configuration
-# has a unique ID and one or more parameters. A typical example of a unique ID
-# is a condition generated by 'common.check-init-parameters' rule. Other kinds
-# of IDs can be used. Parameters may include any details about the configuration
-# like 'command', 'path', etc.
-#
-# A toolset configuration may be in one of the following states:
-#
-#   - registered
-#       Configuration has been registered (e.g. explicitly or by auto-detection
-#       code) but has not yet been marked as used, i.e. 'toolset.using' rule has
-#       not yet been called for it.
-#   - used
-#       Once called 'toolset.using' rule marks the configuration as 'used'.
-#
-# The main difference between the states above is that while a configuration is
-# 'registered' its options can be freely changed. This is useful in particular
-# for autodetection code - all detected configurations may be safely overwritten
-# by user code.
-
-class configurations
-{
-    import errors ;
-
-    rule __init__ ( )
-    {
-    }
-
-    # Registers a configuration.
-    #
-    # Returns 'true' if the configuration has been added and an empty value if
-    # it already exists. Reports an error if the configuration is 'used'.
-    #
-    rule register ( id )
-    {
-        if $(id) in $(self.used)
-        {
-            errors.error "common: the configuration '$(id)' is in use" ;
-        }
-
-        local retval ;
-
-        if ! $(id) in $(self.all)
-        {
-            self.all += $(id) ;
-
-            # Indicate that a new configuration has been added.
-            retval = true ;
-        }
-
-        return $(retval) ;
-    }
-
-    # Mark a configuration as 'used'.
-    #
-    # Returns 'true' if the state of the configuration has been changed to
-    # 'used' and an empty value if it the state has not been changed. Reports an
-    # error if the configuration is not known.
-    #
-    rule use ( id )
-    {
-        if ! $(id) in $(self.all)
-        {
-            errors.error "common: the configuration '$(id)' is not known" ;
-        }
-
-        local retval ;
-
-        if ! $(id) in $(self.used)
-        {
-            self.used += $(id) ;
-
-            # Indicate that the configuration has been marked as 'used'.
-            retval = true ;
-        }
-
-        return $(retval) ;
-    }
-
-    # Return all registered configurations.
-    #
-    rule all ( )
-    {
-        return $(self.all) ;
-    }
-
-    # Return all used configurations.
-    #
-    rule used ( )
-    {
-        return $(self.used) ;
-    }
-
-    # Returns the value of a configuration parameter.
-    #
-    rule get ( id : param )
-    {
-        return $(self.$(param).$(id)) ;
-    }
-
-    # Sets the value of a configuration parameter.
-    #
-    rule set ( id : param : value * )
-    {
-        self.$(param).$(id) = $(value) ;
-    }
-}
-
-
-# The rule for checking toolset parameters. Trailing parameters should all be
-# parameter name/value pairs. The rule will check that each parameter either has
-# a value in each invocation or has no value in each invocation. Also, the rule
-# will check that the combination of all parameter values is unique in all
-# invocations.
-#
-# Each parameter name corresponds to a subfeature. This rule will declare a
-# subfeature the first time a non-empty parameter value is passed and will
-# extend it with all the values.
-#
-# The return value from this rule is a condition to be used for flags settings.
-#
-rule check-init-parameters ( toolset requirement * : * )
-{
-    local sig = $(toolset) ;
-    local condition = <toolset>$(toolset) ;
-    local subcondition ;
-    for local index in 2 3 4 5 6 7 8 9
-    {
-        local name = $($(index)[1]) ;
-        local value = $($(index)[2]) ;
-
-        if $(value)-is-not-empty
-        {
-            condition = $(condition)-$(value) ;
-            if $(.had-unspecified-value.$(toolset).$(name))
-            {
-                errors.user-error
-                    "$(toolset) initialization: parameter '$(name)'"
-                    "inconsistent" : "no value was specified in earlier"
-                    "initialization" : "an explicit value is specified now" ;
-            }
-            # The below logic is for intel compiler. It calls this rule with
-            # 'intel-linux' and 'intel-win' as toolset, so we need to get the
-            # base part of toolset name. We can not pass 'intel' as toolset
-            # because in that case it will be impossible to register versionless
-            # intel-linux and intel-win toolsets of a specific version.
-            local t = $(toolset) ;
-            local m = [ MATCH "([^-]*)-" : $(toolset) ] ;
-            if $(m)
-            {
-                t = $(m[1]) ;
-            }
-            if ! $(.had-value.$(toolset).$(name))
-            {
-                if ! $(.declared-subfeature.$(t).$(name))
-                {
-                    feature.subfeature toolset $(t) : $(name) : : propagated ;
-                    .declared-subfeature.$(t).$(name) = true ;
-                }
-                .had-value.$(toolset).$(name) = true ;
-            }
-            feature.extend-subfeature toolset $(t) : $(name) : $(value) ;
-            subcondition += <toolset-$(t):$(name)>$(value) ;
-        }
-        else
-        {
-            if $(.had-value.$(toolset).$(name))
-            {
-                errors.user-error
-                    "$(toolset) initialization: parameter '$(name)'"
-                    "inconsistent" : "an explicit value was specified in an"
-                    "earlier initialization" : "no value is specified now" ;
-            }
-            .had-unspecified-value.$(toolset).$(name) = true ;
-        }
-        sig = $(sig)$(value:E="")- ;
-    }
-    # We also need to consider requirements on the toolset as we can
-    # configure the same toolset multiple times with different options that
-    # are selected with the requirements.
-    if $(requirement)
-    {
-        sig = $(sig)$(requirement:J=,) ;
-    }
-    if $(sig) in $(.all-signatures)
-    {
-        local message =
-            "duplicate initialization of $(toolset) with the following parameters: " ;
-        for local index in 2 3 4 5 6 7 8 9
-        {
-            local p = $($(index)) ;
-            if $(p)
-            {
-                message += "$(p[1]) = $(p[2]:E=<unspecified>)" ;
-            }
-        }
-        message += "previous initialization at $(.init-loc.$(sig))" ;
-        errors.user-error
-            $(message[1]) : $(message[2]) : $(message[3]) : $(message[4]) :
-            $(message[5]) : $(message[6]) : $(message[7]) : $(message[8]) ;
-    }
-    .all-signatures += $(sig) ;
-    .init-loc.$(sig) = [ errors.nearest-user-location ] ;
-
-    # If we have a requirement, this version should only be applied under that
-    # condition. To accomplish this we add a toolset requirement that imposes
-    # the toolset subcondition, which encodes the version.
-    if $(requirement)
-    {
-        local r = <toolset>$(toolset) $(requirement) ;
-        r = $(r:J=,) ;
-        toolset.add-requirements "$(r):$(subcondition)" ;
-    }
-
-    # We add the requirements, if any, to the condition to scope the toolset
-    # variables and options to this specific version.
-    condition += $(requirement) ;
-
-    if $(.show-configuration)
-    {
-        ECHO "notice:" $(condition) ;
-    }
-    return $(condition:J=/) ;
-}
-
-
-# A helper rule to get the command to invoke some tool. If
-# 'user-provided-command' is not given, tries to find binary named 'tool' in
-# PATH and in the passed 'additional-path'. Otherwise, verifies that the first
-# element of 'user-provided-command' is an existing program.
-#
-# This rule returns the command to be used when invoking the tool. If we can not
-# find the tool, a warning is issued. If 'path-last' is specified, PATH is
-# checked after 'additional-paths' when searching for 'tool'.
-#
-rule get-invocation-command-nodefault ( toolset : tool :
-    user-provided-command * : additional-paths * : path-last ? )
-{
-    local command ;
-    if ! $(user-provided-command)
-    {
-        command = [ find-tool $(tool) : $(additional-paths) : $(path-last) ] ;
-        if ! $(command) && $(.debug-configuration)
-        {
-            ECHO "warning:" toolset $(toolset) "initialization:" can not find tool
-                $(tool) ;
-            ECHO "warning:" initialized from [ errors.nearest-user-location ] ;
-        }
-    }
-    else
-    {
-        command = [ check-tool $(user-provided-command) ] ;
-        if ! $(command) && $(.debug-configuration)
-        {
-            ECHO "warning:" toolset $(toolset) "initialization:" ;
-            ECHO "warning:" can not find user-provided command
-                '$(user-provided-command)' ;
-            ECHO "warning:" initialized from [ errors.nearest-user-location ] ;
-        }
-    }
-
-    return $(command) ;
-}
-
-
-# Same as get-invocation-command-nodefault, except that if no tool is found,
-# returns either the user-provided-command, if present, or the 'tool' parameter.
-#
-rule get-invocation-command ( toolset : tool : user-provided-command * :
-    additional-paths * : path-last ? )
-{
-    local result = [ get-invocation-command-nodefault $(toolset) : $(tool) :
-        $(user-provided-command) : $(additional-paths) : $(path-last) ] ;
-
-    if ! $(result)
-    {
-        if $(user-provided-command)
-        {
-            result = $(user-provided-command) ;
-        }
-        else
-        {
-            result = $(tool) ;
-        }
-    }
-    return $(result) ;
-}
-
-
-# Given an invocation command return the absolute path to the command. This
-# works even if command has no path element and was found on the PATH.
-#
-rule get-absolute-tool-path ( command )
-{
-    if $(command:D)
-    {
-        return $(command:D) ;
-    }
-    else
-    {
-        local m = [ GLOB [ modules.peek : PATH Path path ] : $(command)
-            $(command).exe ] ;
-        return $(m[1]:D) ;
-    }
-}
-
-
-# Attempts to find tool (binary) named 'name' in PATH and in 'additional-paths'.
-# If found in PATH, returns 'name' and if found in additional paths, returns
-# absolute name. If the tool is found in several directories, returns the first
-# path found. Otherwise, returns an empty string. If 'path-last' is specified,
-# PATH is searched after 'additional-paths'.
-#
-rule find-tool ( name : additional-paths * : path-last ? )
-{
-    if $(name:D)
-    {
-        return [ check-tool-aux $(name) ] ;
-    }
-    local path = [ path.programs-path ] ;
-    local match = [ path.glob $(path) : $(name) $(name).exe ] ;
-    local additional-match = [ path.glob $(additional-paths) : $(name)
-        $(name).exe ] ;
-
-    local result ;
-    if $(path-last)
-    {
-        result = $(additional-match) ;
-        if ! $(result) && $(match)
-        {
-            result = $(name) ;
-        }
-    }
-    else
-    {
-        if $(match)
-        {
-            result = $(name) ;
-        }
-        else
-        {
-            result = $(additional-match) ;
-        }
-    }
-    if $(result)
-    {
-        return [ path.native $(result[1]) ] ;
-    }
-}
-
-# Checks if 'command' can be found either in path or is a full name to an
-# existing file.
-#
-local rule check-tool-aux ( command )
-{
-    if $(command:D)
-    {
-        if [ path.exists $(command) ]
-            # Both NT and Cygwin will run .exe files by their unqualified names.
-            || ( [ os.on-windows ] && [ path.exists $(command).exe ] )
-            # Only NT will run .bat & .cmd files by their unqualified names.
-            || ( ( [ os.name ] = NT ) && ( [ path.exists $(command).bat ] ||
-                [ path.exists $(command).cmd ] ) )
-        {
-            return $(command) ;
-        }
-    }
-    else
-    {
-        if [ GLOB [ modules.peek : PATH Path path ] : $(command) ]
-        {
-            return $(command) ;
-        }
-    }
-}
-
-
-# Checks that a tool can be invoked by 'command'. If command is not an absolute
-# path, checks if it can be found in 'path'. If command is an absolute path,
-# check that it exists. Returns 'command' if ok or empty string otherwise.
-#
-local rule check-tool ( xcommand + )
-{
-    if [ check-tool-aux $(xcommand[1]) ] ||
-       [ check-tool-aux $(xcommand[-1]) ]
-    {
-        return $(xcommand) ;
-    }
-}
-
-
-# Handle common options for toolset, specifically sets the following flag
-# variables:
-# - CONFIG_COMMAND to $(command)
-# - OPTIONS for compile         to the value of <compileflags> in $(options)
-# - OPTIONS for compile.c       to the value of <cflags>       in $(options)
-# - OPTIONS for compile.c++     to the value of <cxxflags>     in $(options)
-# - OPTIONS for compile.asm     to the value of <asmflags>     in $(options)
-# - OPTIONS for compile.fortran to the value of <fflags>       in $(options)
-# - OPTIONS for link            to the value of <linkflags>    in $(options)
-#
-rule handle-options ( toolset : condition * : command * : options * )
-{
-    if $(.debug-configuration)
-    {
-        ECHO "notice:" will use '$(command)' for $(toolset), condition
-            $(condition:E=(empty)) ;
-    }
-
-    #   The last parameter ('unchecked') says it is OK to set flags for another
-    # module.
-    toolset.flags $(toolset) CONFIG_COMMAND $(condition) : $(command)
-        : unchecked ;
-
-    toolset.flags $(toolset).compile         OPTIONS $(condition) :
-        [ feature.get-values <compileflags> : $(options) ] : unchecked ;
-
-    toolset.flags $(toolset).compile.c       OPTIONS $(condition) :
-        [ feature.get-values <cflags>       : $(options) ] : unchecked ;
-
-    toolset.flags $(toolset).compile.c++     OPTIONS $(condition) :
-        [ feature.get-values <cxxflags>     : $(options) ] : unchecked ;
-
-    toolset.flags $(toolset).compile.asm     OPTIONS $(condition) :
-        [ feature.get-values <asmflags>     : $(options) ] : unchecked ;
-
-    toolset.flags $(toolset).compile.fortran OPTIONS $(condition) :
-        [ feature.get-values <fflags>       : $(options) ] : unchecked ;
-
-    toolset.flags $(toolset).link            OPTIONS $(condition) :
-        [ feature.get-values <linkflags>    : $(options) ] : unchecked ;
-}
-
-
-# Returns the location of the "program files" directory on a Windows platform.
-#
-rule get-program-files-dir ( )
-{
-    local ProgramFiles = [ modules.peek : ProgramFiles ] ;
-    if $(ProgramFiles)
-    {
-        ProgramFiles = "$(ProgramFiles:J= )" ;
-    }
-    else
-    {
-        ProgramFiles = "c:\\Program Files" ;
-    }
-    return $(ProgramFiles) ;
-}
-
-
-if [ os.name ] = NT
-{
-    NULL_DEVICE = "NUL" ;
-    IGNORE = "2>$(NULL_DEVICE) >$(NULL_DEVICE) & setlocal" ;
-    RM = del /f /q ;
-    CP = copy /b ;
-    LN ?= $(CP) ;
-    # Ugly hack to convince copy to set the timestamp of the destination to the
-    # current time by concatenating the source with a nonexistent file. Note
-    # that this requires /b (binary) as the default when concatenating files is
-    # /a (ascii).
-    WINDOWS-CP-HACK = "+ this-file-does-not-exist-A698EE7806899E69" ;
-}
-else if [ os.name ] = VMS
-{
-    NULL_DEVICE = "NL:" ;
-    PIPE = PIPE ;
-    IGNORE = "2>$(NULL_DEVICE) >$(NULL_DEVICE)" ;
-    RM = DELETE /NOCONF ;
-    CP = COPY /OVERWRITE ;
-    LN = $(CP) ;
-}
-else
-{
-    NULL_DEVICE = "/dev/null" ;
-    IGNORE = "2>$(NULL_DEVICE) >$(NULL_DEVICE)" ;
-    RM = rm -f ;
-    CP = cp ;
-    LN = ln ;
-}
-
-NULL_OUT = ">$(NULL_DEVICE)" ;
-
-rule null-device ( )
-{
-    return $(NULL_DEVICE) ;
-}
-
-
-rule rm-command ( )
-{
-    return $(RM) ;
-}
-
-
-rule copy-command ( )
-{
-    return $(CP) ;
-}
-
-
-if "\n" = "n"
-{
-    # Escape characters not supported so use ugly hacks. Will not work on Cygwin
-    # - see below.
-    nl = "
-" ;
-    q = "" ;
-}
-else
-{
-    nl = "\n" ;
-    q = "\"" ;
-}
-
-
-rule newline-char ( )
-{
-    return $(nl) ;
-}
-
-
-# Returns the command needed to set an environment variable on the current
-# platform. The variable setting persists through all following commands and is
-# visible in the environment seen by subsequently executed commands. In other
-# words, on Unix systems, the variable is exported, which is consistent with the
-# only possible behavior on Windows systems.
-#
-rule variable-setting-command ( variable : value )
-{
-    if [ os.name ] = NT
-    {
-        return "set $(variable)=$(value)$(nl)" ;
-    }
-    else if [ os.name ] = VMS
-    {
-        return "$(variable) == $(q)$(value)$(q)$(nl)" ;
-    }
-    else
-    {
-        # If we do not have escape character support in bjam, the cod below
-        # blows up on CYGWIN, since the $(nl) variable holds a Windows new-line
-        # \r\n sequence that messes up the executed export command which then
-        # reports that the passed variable name is incorrect.
-        # But we have a check for cygwin in kernel/bootstrap.jam already.
-        return "$(variable)=$(q)$(value)$(q)$(nl)export $(variable)$(nl)" ;
-    }
-}
-
-
-# Returns a command to sets a named shell path variable to the given NATIVE
-# paths on the current platform.
-#
-rule path-variable-setting-command ( variable : paths * )
-{
-    local sep = [ os.path-separator ] ;
-    return [ variable-setting-command $(variable) : $(paths:J=$(sep)) ] ;
-}
-
-
-# Returns a command that prepends the given paths to the named path variable on
-# the current platform.
-#
-rule prepend-path-variable-command ( variable : paths * )
-{
-    return [ path-variable-setting-command $(variable)
-        : $(paths) [ os.expand-variable $(variable) ] ] ;
-}
-
-
-# Return a command which can create a file. If 'r' is result of invocation, then
-# 'r foobar' will create foobar with unspecified content. What happens if file
-# already exists is unspecified.
-#
-rule file-creation-command ( )
-{
-    if [ os.name ] = NT
-    {
-        # A few alternative implementations on Windows:
-        #
-        #   'type NUL >> '
-        #        That would construct an empty file instead of a file containing
-        #      a space and an end-of-line marker but it would also not change
-        #      the target's timestamp in case the file already exists.
-        #
-        #   'type NUL > '
-        #        That would construct an empty file instead of a file containing
-        #      a space and an end-of-line marker but it would also destroy an
-        #      already existing file by overwriting it with an empty one.
-        #
-        #   I guess the best solution would be to allow Boost Jam to define
-        # built-in functions such as 'create a file', 'touch a file' or 'copy a
-        # file' which could be used from inside action code. That would allow
-        # completely portable operations without this kind of kludge.
-        #                                            (22.02.2009.) (Jurko)
-        return "echo. > " ;
-    }
-    else if [ os.name ] = VMS
-    {
-        return "APPEND /NEW NL: " ;
-    }
-    else
-    {
-        return "touch " ;
-    }
-}
-
-
-# Returns a command that may be used for 'touching' files. It is not a real
-# 'touch' command on NT because it adds an empty line at the end of file but it
-# works with source files.
-#
-rule file-touch-command ( )
-{
-    if [ os.name ] = NT
-    {
-        return "echo. >> " ;
-    }
-    else if [ os.name ] = VMS
-    {
-        return "APPEND /NEW NL: " ;
-    }
-    else
-    {
-        return "touch " ;
-    }
-}
-
-
-rule MkDir
-{
-    # If dir exists, do not update it. Do this even for $(DOT).
-    NOUPDATE $(<) ;
-
-    if $(<) != $(DOT) && ! $($(<)-mkdir)
-    {
-        # Cheesy gate to prevent multiple invocations on same dir.
-        $(<)-mkdir = true ;
-
-        # Schedule the mkdir build action.
-        common.mkdir $(<) ;
-
-        # Prepare a Jam 'dirs' target that can be used to make the build only
-        # construct all the target directories.
-        DEPENDS dirs : $(<) ;
-
-        # Recursively create parent directories. $(<:P) = $(<)'s parent & we
-        # recurse until root.
-
-        local s = $(<:P) ;
-        if [ os.name ] = NT
-        {
-            switch $(s)
-            {
-                case "*:"   : s = ;
-                case "*:\\" : s = ;
-            }
-        }
-
-        if $(s)
-        {
-            if $(s) != $(<)
-            {
-                DEPENDS $(<) : $(s) ;
-                MkDir $(s) ;
-            }
-            else
-            {
-                NOTFILE $(s) ;
-            }
-        }
-    }
-}
-
-
-#actions MkDir1
-#{
-#    mkdir "$(<)"
-#}
-
-#   The following quick-fix actions should be replaced using the original MkDir1
-# action once Boost Jam gets updated to correctly detect different paths leading
-# up to the same filesystem target and triggers their build action only once.
-#                                             (todo) (04.07.2008.) (Jurko)
-
-if [ os.name ] = NT
-{
-    actions quietly mkdir
-    {
-        if not exist "$(<)\\" mkdir "$(<)"
-    }
-}
-else
-{
-    actions quietly mkdir
-    {
-        mkdir -p "$(<)"
-    }
-}
-
-
-actions piecemeal together existing Clean
-{
-    $(RM) "$(>)"
-}
-
-
-rule copy
-{
-}
-
-
-actions copy
-{
-    $(CP) "$(>)" $(WINDOWS-CP-HACK) "$(<)"
-}
-
-
-rule RmTemps
-{
-}
-
-
-actions quietly updated piecemeal together RmTemps
-{
-    $(RM) "$(>)" $(IGNORE)
-}
-
-
-actions hard-link
-{
-    $(RM) "$(<)" 2$(NULL_OUT) $(NULL_OUT)
-    $(LN) "$(>)" "$(<)" $(NULL_OUT)
-}
-
-
-if [ os.name ] = VMS
-{
-    actions mkdir
-    {
-        IF F$PARSE("$(<:W)") .EQS. "" THEN CREATE /DIR $(<:W)
-    }
-
-    actions piecemeal together existing Clean
-    {
-        $(RM) $(>:WJ=;*,);*
-    }
-
-    actions copy
-    {
-        $(CP) $(>:WJ=,) $(<:W)
-    }
-
-    actions quietly updated piecemeal together RmTemps
-    {
-        $(PIPE) $(RM) $(>:WJ=;*,);* $(IGNORE)
-    }
-
-    actions hard-link
-    {
-        $(PIPE) $(RM) $(>[1]:W);* $(IGNORE)
-        $(PIPE) $(LN) $(>[1]:W) $(<:W) $(NULL_OUT)
-    }
-}
-
-# Given a target, as given to a custom tag rule, returns a string formatted
-# according to the passed format. Format is a list of properties that is
-# represented in the result. For each element of format the corresponding target
-# information is obtained and added to the result string. For all, but the
-# literal, the format value is taken as the as string to prepend to the output
-# to join the item to the rest of the result. If not given "-" is used as a
-# joiner.
-#
-# The format options can be:
-#
-#   <base>[joiner]
-#       ::  The basename of the target name.
-#   <toolset>[joiner]
-#       ::  The abbreviated toolset tag being used to build the target.
-#   <threading>[joiner]
-#       ::  Indication of a multi-threaded build.
-#   <runtime>[joiner]
-#       ::  Collective tag of the build runtime.
-#   <version:/version-feature | X.Y[.Z]/>[joiner]
-#       ::  Short version tag taken from the given "version-feature" in the
-#           build properties. Or if not present, the literal value as the
-#           version number.
-#   <property:/property-name/>[joiner]
-#       ::  Direct lookup of the given property-name value in the build
-#           properties. /property-name/ is a regular expression. E.g.
-#           <property:toolset-.*:flavor> will match every toolset.
-#   /otherwise/
-#       ::  The literal value of the format argument.
-#
-# For example this format:
-#
-#   boost_ <base> <toolset> <threading> <runtime> <version:boost-version>
-#
-# Might return:
-#
-#   boost_thread-vc80-mt-gd-1_33.dll, or
-#   boost_regex-vc80-gd-1_33.dll
-#
-# The returned name also has the target type specific prefix and suffix which
-# puts it in a ready form to use as the value from a custom tag rule.
-#
-rule format-name ( format * : name : type ? : property-set )
-{
-    local result = "" ;
-    for local f in $(format)
-    {
-        switch $(f:G)
-        {
-            case <base> :
-                result += $(name:B) ;
-
-            case <toolset> :
-                result += [ join-tag $(f:G=) : [ toolset-tag $(name) : $(type) :
-                    $(property-set) ] ] ;
-
-            case <threading> :
-                result += [ join-tag $(f:G=) : [ threading-tag $(name) : $(type)
-                    : $(property-set) ] ] ;
-
-            case <runtime> :
-                result += [ join-tag $(f:G=) : [ runtime-tag $(name) : $(type) :
-                    $(property-set) ] ] ;
-
-            case <qt> :
-                result += [ join-tag $(f:G=) : [ qt-tag $(name) : $(type) :
-                    $(property-set) ] ] ;
-
-            case <address-model> :
-                result += [ join-tag $(f:G=) : [ address-model-tag $(name) :
-                    $(type) : $(property-set) ] ] ;
-
-            case <arch-and-model> :
-                result += [ join-tag $(f:G=) : [ arch-and-model-tag $(name) :
-                    $(type) : $(property-set) ] ] ;
-
-            case <version:*> :
-                local key = [ MATCH <version:(.*)> : $(f:G) ] ;
-                local version = [ $(property-set).get <$(key)> ] ;
-                version ?= $(key) ;
-                version = [ MATCH "^([^.]+)[.]([^.]+)[.]?([^.]*)" : $(version) ] ;
-                result += [ join-tag $(f:G=) : $(version[1])_$(version[2]) ] ;
-
-            case <property:*> :
-                local key = [ MATCH <property:(.*)> : $(f:G) ] ;
-                local p0 = [ MATCH <($(key))> : [ $(property-set).raw ] ] ;
-                if $(p0)
-                {
-                    local p = [ $(property-set).get <$(p0)> ] ;
-                    if $(p)
-                    {
-                        result += [ join-tag $(f:G=) : $(p) ] ;
-                    }
-                }
-
-            case * :
-                result += $(f:G=) ;
-        }
-    }
-    return [ virtual-target.add-prefix-and-suffix $(result:J=) : $(type) :
-        $(property-set) ] ;
-}
-
-
-local rule join-tag ( joiner ? : tag ? )
-{
-    if ! $(joiner) { joiner = - ; }
-    return $(joiner)$(tag) ;
-}
-
-
-local rule toolset-tag ( name : type ? : property-set )
-{
-    local tag = ;
-
-    local properties = [ $(property-set).raw ] ;
-    switch [ $(property-set).get <toolset> ]
-    {
-        case borland* : tag += bcb ;
-        case clang* :
-        {
-            switch [ $(property-set).get <toolset-clang:platform> ]
-            {
-               case darwin : tag += clang-darwin ;
-               case linux  : tag += clang ;
-               case win    : tag += clangw ;
-            }
-        }
-        case como* : tag += como ;
-        case cw : tag += cw ;
-        case darwin* : tag += xgcc ;
-        case edg* : tag += edg ;
-        case gcc* :
-        {
-            switch [ $(property-set).get <target-os> ]
-            {
-                case *windows* : tag += mgw ;
-                case * : tag += gcc ;
-            }
-        }
-        case intel :
-        if [ $(property-set).get <toolset-intel:platform> ] = win
-        {
-            tag += iw ;
-        }
-        else
-        {
-            tag += il ;
-        }
-        case kcc* : tag += kcc ;
-        case kylix* : tag += bck ;
-        #case metrowerks* : tag += cw ;
-        #case mingw* : tag += mgw ;
-        case mipspro* : tag += mp ;
-        case msvc* : tag += vc ;
-        case qcc* : tag += qcc ;
-        case sun* : tag += sw ;
-        case tru64cxx* : tag += tru ;
-        case vacpp* : tag += xlc ;
-    }
-    local version = [ MATCH "<toolset.*version>([0123456789]+)[.]?([0123456789]*)"
-        : $(properties) ] ;
-    # For historical reasons, vc6.0 and vc7.0 use different naming.
-    if $(tag) = vc
-    {
-        if $(version[1]) = 6
-        {
-            # Cancel minor version.
-            version = 6 ;
-        }
-        else if $(version[1]) = 7 && $(version[2]) = 0
-        {
-            version = 7 ;
-        }
-    }
-
-    # From GCC 5, versioning changes and minor becomes patch
-    if ( $(tag) = gcc || $(tag) = mgw ) && [ numbers.less 4 $(version[1]) ]
-    {
-        version = $(version[1]) ;
-    }
-
-    # Ditto, from Clang 4
-    if ( $(tag) = clang || $(tag) = clangw ) && [ numbers.less 3 $(version[1]) ]
-    {
-        version = $(version[1]) ;
-    }
-
-    # On intel, version is not added, because it does not matter and it is the
-    # version of vc used as backend that matters. Ideally, we should encode the
-    # backend version but that would break compatibility with V1.
-    if $(tag) = iw
-    {
-        version = ;
-    }
-
-    # On borland, version is not added for compatibility with V1.
-    if $(tag) = bcb
-    {
-        version = ;
-    }
-
-    tag += $(version) ;
-
-    return $(tag:J=) ;
-}
-
-
-local rule threading-tag ( name : type ? : property-set )
-{
-    if <threading>multi in [ $(property-set).raw ]
-    {
-        return mt ;
-    }
-}
-
-
-local rule runtime-tag ( name : type ? : property-set )
-{
-    local tag = ;
-
-    local properties = [ $(property-set).raw ] ;
-    if <runtime-link>static in $(properties) { tag += s ; }
-
-    # This is an ugly thing. In V1, there is code to automatically detect which
-    # properties affect a target. So, if <runtime-debugging> does not affect gcc
-    # toolset, the tag rules will not even see <runtime-debugging>. Similar
-    # functionality in V2 is not implemented yet, so we just check for toolsets
-    # known to care about runtime debugging.
-    if ( <toolset>msvc in $(properties) ) ||
-        ( <stdlib>stlport in $(properties) ) ||
-        ( <toolset-intel:platform>win in $(properties) )
-    {
-        if <runtime-debugging>on in $(properties) { tag += g ; }
-    }
-
-    if <python-debugging>on in $(properties) { tag += y ; }
-    if <variant>debug in $(properties) { tag += d ; }
-    if <stdlib>stlport in $(properties) { tag += p ; }
-    if <stdlib-stlport:iostream>hostios in $(properties) { tag += n ; }
-
-    return $(tag:J=) ;
-}
-
-
-# Create a tag for the Qt library version
-# "<qt>4.6.0" will result in tag "qt460"
-local rule qt-tag ( name : type ? : property-set )
-{
-    local v = [ MATCH "([0123456789]+)[.]?([0123456789]*)[.]?([0123456789]*)" :
-        [ $(property-set).get <qt> ] ] ;
-    return qt$(v:J=) ;
-}
-
-
-# Create a tag for the address-model
-# <address-model>64 will simply generate "64"
-local rule address-model-tag ( name : type ? : property-set )
-{
-    return [ $(property-set).get <address-model> ] ;
-}
-
-# Create a tag for the architecture and model
-# <architecture>x86 <address-model>32 would generate "x32"
-# This relies on the fact that all architectures start with
-# unique letters.
-local rule arch-and-model-tag ( name : type ? : property-set )
-{
-    local architecture = [ $(property-set).get <architecture> ] ;
-    local address-model = [ $(property-set).get <address-model> ] ;
-
-    local arch = [ MATCH ^(.) : $(architecture) ] ;
-
-    return $(arch)$(address-model) ;
-}
-
-rule __test__ ( )
-{
-    import assert ;
-
-    local save-os = [ modules.peek os : .name ] ;
-
-    modules.poke os : .name : LINUX ;
-    assert.result "PATH=\"foo:bar:baz\"\nexport PATH\n"
-        : path-variable-setting-command PATH : foo bar baz ;
-    assert.result "PATH=\"foo:bar:$PATH\"\nexport PATH\n"
-        : prepend-path-variable-command PATH : foo bar ;
-
-    modules.poke os : .name : NT ;
-    assert.result "set PATH=foo;bar;baz\n"
-        : path-variable-setting-command PATH : foo bar baz ;
-    assert.result "set PATH=foo;bar;%PATH%\n"
-        : prepend-path-variable-command PATH : foo bar ;
-
-    modules.poke os : .name : $(save-os) ;
-}