# Copyright (c) 2003 David Abrahams.
# Copyright (c) 2005 Vladimir Prus.
# Copyright (c) 2005 Alexey Pakhunov.
# Copyright (c) 2006 Bojan Resnik.
#
# 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)

import property ;
import generators ;
import os ;
import type ;
import toolset : flags ;
import errors : error ;
import feature : feature get-values ;
import path ;
import sequence : unique ;
import common ;
import "class" : new ;
import rc ;
import midl ;
import mc ;
import pch ;

if [ MATCH (--debug-configuration) : [ modules.peek : ARGV ] ]
{
    .debug-configuration = true ;
}

feature.extend toolset : msvc ;

feature.subfeature toolset msvc : vendor
  : intel
  : propagated optional
  # intel and msvc supposedly have link-compatible objects... remains
  # to be seen, though ;-)
  ;

# List of all registered configurations
.versions = [ new configurations ] ;

# Inherit MIDL flags
toolset.inherit-flags msvc : midl ;

# Inherit MC flags
toolset.inherit-flags msvc : mc ;

RM =  [ common.rm-command ] ;
nl = "
" ;


# Initialize the toolset for a specific version. As the result, path to
# compiler and, possible, program names are set up, and will be used when
# that version of compiler is requested. For example, you might have:
#
#    using msvc : 6.5 : cl.exe ;
#    using msvc : 7.0 : Y:/foo/bar/cl.exe ;
#
# The version paramater can be ommited:
#
#    using msvc : : Z:/foo/bar/cl.exe ;
#
# Two special version keywords may be supplied:
#   - all - all detected versions will be registered;
#   - default - this is an equivalent to an empty version.
#
# Depending on a supplied version, detected configurations and presence 
# 'cl.exe' in the path different results may be achieved. The following 
# table describes all possible cases:
#
#                                      Nothing            "x.y"
# Passed   Nothing       "x.y"         detected,          detected,
# version  detected      detected      cl.exe in path     cl.exe in path
# 
# default  Error         Use "x.y"     Create "default"   Use "x.y"
# all      None          Use all       None               Use all
# x.y      -             Use "x.y"     -                  Use "x.y"
# a.b      Error         Error         Create "a.b"       Create "a.b"
# 
# "x.y" - refers to a detected version;
# "a.b" - refers to an undetected version.
#
# Note: for free VC7.1 tools, we don't correctly find vcvars32.bar when user
# explicitly provides a path.
rule init ( 
    version ? # the msvc version which is being configured. When omitted
            # the tools invoked when no explicit version is given will be configured.
    : command * 
    # the command to invoke the compiler. If not specified:
    #       - if version is given, default location for that version will be searched
    # 
    #       - if version is not given, default locations for 7.1, 7.0 and 6.* will 
    #              be searched    
    # 
    #       - if compiler is not found in default locations, PATH will be searched.    
    : options * 
    # options can include <setup>, <compiler>, <assembler>, <linker> and <resource-compiler>
)
{
    if $(command)
    {
        options += <command>$(command) ;
    }

    configure $(version) : $(options) ;
}


# 'configure' is a newer version of 'init'. The parameter 'command' is passed as 
# a part of the 'options' list.
rule configure (
    version ? :
    options * 
    )
{
    switch $(version)
    {
        case all :
            if $(options)
            {
                error "msvc: options should be empty when 'all' is specified" ;
            }

            # use all detected versions
            for local v in [ $(.versions).all ]
            {
                configure-really $(v) ;
            }

        case "default" :
            configure-really : $(options) ;

        case * :
            configure-really $(version) : $(options) ;
    }
}


# Supported CPU architectures
cpu-arch-i386 = 
    <architecture>/<address-model>
    <architecture>/<address-model>32
    <architecture>x86/<address-model>   
    <architecture>x86/<address-model>32 ;

cpu-arch-amd64 = 
    <architecture>/<address-model>64    
    <architecture>x86/<address-model>64 ;

cpu-arch-ia64 =
    <architecture>ia64/<address-model>  
    <architecture>ia64/<address-model>64 ;


local rule configure-really (
    version ? :
    options *
    )
{
    # If no version supplied use the default configuration. Note that condition 
    # remains versionless.
    local v = $(version) ;
    if ! $(v)
    {
        # take the first detected version
        version = [ $(.versions).all ] ;
        version = $(version[1]) ;

        # Note: 'version' can still be empty at this point if no versions were 
        # detected.
        version ?= "default" ;
    }

    # Version alias -> real version number
    if $(.version-alias-$(version))
    {
        version = $(.version-alias-$(version)) ;
    }

    # Check whether selected configuration is used already
    if $(version) in [ $(.versions).used ]
    {
        # Allow multiple 'toolset.usage' calls for the same configuration
        # if the identical sets of options are used 
        if $(options) && ( $(options) != [ $(.versions).get $(version) : options ] )
        {
            error "msvc: the toolset version '$(version)' is configured already" ;
        }
    }
    else
    {
        # Register a new configuration 
        $(.versions).register $(version) ;

        # Add user-supplied to auto-detected options
        options = [ $(.versions).get $(version) : options ] $(options) ;

        # Mark the configuration as 'used'.
        $(.versions).use $(version) ;

        # Generate condition and save it
        local condition = [ common.check-init-parameters msvc : 
            version $(v) ] ;

        $(.versions).set $(version) : condition : $(condition) ;


        local command = [ get-values <command> : $(options) ] ;

        # If version is specified, we try to search first in default paths,
        # and only then in PATH.
        command = [ common.get-invocation-command msvc : cl.exe : $(command)
          : [ default-paths $(version) ] : $(version) ] ;

        common.handle-options msvc : $(condition) : $(command) : $(options) ;
            

        if ! $(version) 
        {
            # Even if version is not explicitly specified, try to detect the version
            # from the path.
            if [ MATCH "(Microsoft Visual Studio 8)" : $(command) ]
            {
                version = 8.0 ;
            }                 
            else if [ MATCH "(NET 2003[\/\\]VC7)" : $(command) ]
            {
                version = 7.1 ;
            }
            else if [ MATCH "(Microsoft Visual C\\+\\+ Toolkit 2003)" : $(command) ]
            {
                version = 7.1toolkit ;
            }
            else if [ MATCH "(.NET[\/\\]VC7)" : $(command) ]
            {
                version = 7.0 ;
            }
            else
            {
                version = 6.0 ;
            }                
        }

        
        # Generate and register setup command

        local below-8.0 = [ MATCH ^([67]\\.) : $(version) ] ;

        local cpu = i386 ;

        local setup ;
        local setup-option ;

        if $(command)
        {
            command = [ common.get-absolute-tool-path $(command[-1]) ] ;

            local parent = [ path.make $(command) ] ;
            parent = [ path.parent $(parent) ] ;
            parent = [ path.native $(parent) ] ;

            # setup will be used if the script name has been specified. 
            # If setup is not specified, a default script will be used instead.
            setup = [ get-values <setup> : $(options) ] ;

            if ! $(setup)
            {
                if $(below-8.0)
                {
                    setup ?= vcvars32.bat ;
                }
                else
                {
                    setup ?= vcvarsall.bat ;
                }

                # The vccars32.bat is actually in "bin" directory.
                # (except for free VC7.1 tools)
                setup = [ GLOB $(command) $(parent) : $(setup) ] ;
            }

            if $(setup)
            {
                # Note Cygwin to Windows translation 
                setup = "\""$(setup[1]:W)"\"" ;

                if ! $(below-8.0)
                {
                    cpu = i386 amd64 ia64 ;
                    setup-option = x86 x86_amd64 x86_ia64 ;
                }
            }
        }

        local prefix = "call " ;
        local suffix = " >nul
" ;
        if ! [ os.name ] in NT
        {
            prefix = "cmd.exe /S /C call " ;
            suffix = " >nul \"&&\" " ;
        }

        command = $(prefix)$(setup)" "$(setup-option:E="")$(suffix) ;

        # Setup script is not required in some configurations
        command ?= "" ;

        # Get tool names (if any) and finish setup

        compiler = [ get-values <compiler> : $(options) ] ;
        compiler ?= cl ;

        linker = [ get-values <linker> : $(options) ] ;
        linker ?= link ;

        resource-compiler = [ get-values <resource-compiler> : $(options) ] ;
        resource-compiler ?= rc ;

        assembler = [ get-values <assembler> : $(options) ] ;
        assembler ?= ml ;

        idl-compiler = [ get-values <idl-compiler> : $(options) ] ;
        idl-compiler ?= midl ;

        mc-compiler = [ get-values <mc-compiler> : $(options) ] ;
        mc-compiler ?= mc ;

        manifest-tool = mt ;

        for local i in 1 2 3
        {
            local c = $(cpu[$(i)]) ;

            if $(c)
            {
                local cond = $(condition)/$(cpu-arch-$(c)) ;

                if $(.debug-configuration)
                {
                    ECHO "msvc: condition: '$(cond)', "
                        "command: '$(command[$(i)])'" ;
                }
        
                flags msvc.compile .CC  $(cond) : $(command[$(i)])$(compiler) /Zm800 -nologo ;
                flags msvc.compile .RC  $(cond) : $(command[$(i)])$(resource-compiler) ;
                flags msvc.compile .ASM $(cond) : $(command[$(i)])$(assembler) ;
                flags msvc.link    .LD  $(cond) : $(command[$(i)])$(linker) /NOLOGO /INCREMENTAL:NO ;
                flags msvc.archive .LD  $(cond) : $(command[$(i)])$(linker) /lib /NOLOGO  ;
                flags msvc.compile .IDL $(cond) : $(command[$(i)])$(idl-compiler) ;
                flags msvc.compile .MC  $(cond) : $(command[$(i)])$(mc-compiler) ;

                if ! [ os.name ] in NT
                {
                    flags msvc.link .MT $(cond) : $(command[$(i)])$(manifest-tool) -nologo ;
                }
                else
                {
                    flags msvc.link .MT $(cond) : $(manifest-tool) -nologo ;
                }
            }
        }
        # Set version-specific flags
        configure-version-specific msvc : $(version) : $(condition) ;
    }
}


# Supported CPU types
cpu-type-g5 = i586 pentium pentium-mmx ;
cpu-type-g6 = 
    i686 pentiumpro pentium2 pentium3 pentium3m pentium-m k6 k6-2 k6-3 
    winchip-c6 winchip2 c3 c3-2 ;

cpu-type-em64t = prescott nocona ;
cpu-type-amd64 = k8 opteron athlon64 athlon-fx ;

cpu-type-g7 = 
    pentium4 pentium4m athlon athlon-tbird athlon-4 athlon-xp athlon-mp 
    $(cpu-type-em64t) $(cpu-type-amd64) ;

cpu-type-itanium = itanium itanium1 merced ;
cpu-type-itanium2 = itanium2 mckinley ;

# Sets up flag definitions that are dependent on the version ot
# compiler. 
# - 'version' is the version of compiler in N.M format.
# - 'condition' is the property set to be used as condition for flag
# - 'toolset' is the toolset for which flag settings are to be defined
#   This makes the rule reusable for other msvc-option-compatible compilers.
rule configure-version-specific ( toolset : version : condition )
{
    toolset.push-checking-for-flags-module unchecked ;
    # Starting with versions 7.0, the msvc compiler have the /Zc:forScope
    # and /Zc:wchar_t options that improve C++ standard conformance, but
    # those options are off by default.
    # If we're sure that msvc version is at 7.*, add those options explicitly.
    # We can be sure either if user specified version 7.* explicitly,
    # or if the installation path contain 7.* (this is checked above).
    if ! [ MATCH ^(6\\.) : $(version) ]
    {
        flags $(toolset).compile CFLAGS $(condition) : /Zc:forScope /Zc:wchar_t ;
        flags $(toolset).compile.c++ C++FLAGS $(condition) : /wd4675 ;
        # disable the function is deprecated warning
        # Some version of msvc have a bug, that cause deprecation
        # warning to be emitted even with /W0
        flags $(toolset).compile CFLAGS $(condition)/<warnings>off : /wd4996 ; 
        # 64-bit compatibility warning
        flags $(toolset).compile CFLAGS $(condition)/<warnings>all : /Wp64 ; 
    }
    
    #
    # Processor-specific optimization
    #

    if [ MATCH ^([67]) : $(version) ]
    {
        # 8.0 deprecates some of the options
        flags $(toolset).compile CFLAGS $(condition)/<optimization>speed $(condition)/<optimization>space : /Ogiy /Gs ;
        flags $(toolset).compile CFLAGS $(condition)/<optimization>speed : /Ot ;
        flags $(toolset).compile CFLAGS $(condition)/<optimization>space : /Os ;

        flags $(toolset).compile CFLAGS $(condition)/$(cpu-arch-i386)/<instruction-set> : /GB ;
        flags $(toolset).compile CFLAGS $(condition)/$(cpu-arch-i386)/<instruction-set>i386 : /G3 ;
        flags $(toolset).compile CFLAGS $(condition)/$(cpu-arch-i386)/<instruction-set>i486 : /G4 ;
        flags $(toolset).compile CFLAGS $(condition)/$(cpu-arch-i386)/<instruction-set>$(cpu-type-g5) : /G5 ;
        flags $(toolset).compile CFLAGS $(condition)/$(cpu-arch-i386)/<instruction-set>$(cpu-type-g6) : /G6 ;
        flags $(toolset).compile CFLAGS $(condition)/$(cpu-arch-i386)/<instruction-set>$(cpu-type-g7) : /G7 ;
        
        # Improve floating-point accuracy. Otherwise, some of C++ Boost's
        # "math" tests will fail.
        flags $(toolset).compile CFLAGS $(condition) : /Op ;

        # 7.1 and below have single-threaded static RTL
        flags $(toolset).compile CFLAGS $(condition)/<runtime-debugging>off/<runtime-link>static/<threading>single : /ML ;
        flags $(toolset).compile CFLAGS $(condition)/<runtime-debugging>on/<runtime-link>static/<threading>single : /MLd ;
    }
    else
    {
        # 8.0 adds some more options
        flags $(toolset).compile CFLAGS $(condition)/$(cpu-arch-amd64)/<instruction-set> : /favor:blend ;
        flags $(toolset).compile CFLAGS $(condition)/$(cpu-arch-amd64)/<instruction-set>$(cpu-type-em64t) : /favor:EM64T ;
        flags $(toolset).compile CFLAGS $(condition)/$(cpu-arch-amd64)/<instruction-set>$(cpu-type-amd64) : /favor:AMD64 ;

        # 8.0 only has multi-threaded static RTL
        flags $(toolset).compile CFLAGS $(condition)/<runtime-debugging>off/<runtime-link>static/<threading>single : /MT ;
        flags $(toolset).compile CFLAGS $(condition)/<runtime-debugging>on/<runtime-link>static/<threading>single : /MTd ;
    }
    toolset.pop-checking-for-flags-module ;
}


# Returns the default installation path for the given version. 
local rule default-path ( version )
{
    # Use auto-detected path if possible 
    local path = [ get-values <command> : 
        [ $(.versions).get $(version) : options ] ] ;

    if $(path)
    {
        path = $(path:D) ;
    }
    else
    {
        # Check environment
        if $(.version-$(version)-env)
        {
            local vc-path = [ os.environ $(.version-$(version)-env) ] ;
            if $(vc-path)
            {
                vc-path = [ path.make $(vc-path) ] ;
                vc-path = [ path.join $(vc-path) $(.version-$(version)-envpath) ] ;
                vc-path = [ path.native $(vc-path) ] ;

                path = $(vc-path) ;
            }
        }

        # Check default path
        if ! $(path) && $(.version-$(version)-path)
        {
            path = [ path.native [ path.join $(.ProgramFiles) $(.version-$(version)-path) ] ] ;
        }
    }

    return $(path) ;
}

# Returns either the default installation path (if 'version' is not empty) or list of all 
# known default paths (if no version is given)
rule default-paths ( version ? )
{
    local possible-paths ;
    
    if $(version)
    {
        possible-paths += [ default-path $(version) ] ;
    }
    else
    {
        for local i in $(.known-versions)
        {
            possible-paths += [ default-path $(i) ] ;
        }
    }

    return $(possible-paths) ;
}


# Declare generators

# is it possible to combine these?
# make the generators non-composing, so that they don't convert each source
# into separate rsp file.
generators.register-linker msvc.link : OBJ SEARCHED_LIB STATIC_LIB IMPORT_LIB : EXE : <toolset>msvc ;
generators.register-linker msvc.link.dll : OBJ SEARCHED_LIB STATIC_LIB IMPORT_LIB : SHARED_LIB IMPORT_LIB : <toolset>msvc ;
  
generators.register-archiver msvc.archive : OBJ : STATIC_LIB : <toolset>msvc ;
generators.register-c-compiler msvc.compile.c++ : CPP : OBJ : <toolset>msvc ;
generators.register-c-compiler msvc.compile.c : C : OBJ : <toolset>msvc ;

# Using 'register-c-compiler' adds the build directory to INCLUDES
generators.register-c-compiler msvc.compile.rc : RC : OBJ(%_res) : <toolset>msvc ;
generators.override msvc.compile.rc : rc.compile.resource ;
generators.register-standard msvc.compile.asm : ASM : OBJ : <toolset>msvc ;

generators.register-c-compiler msvc.compile.idl : IDL : MSTYPELIB H C(%_i) C(%_proxy) C(%_dlldata) : <toolset>msvc ;
generators.override msvc.compile.idl : midl.compile.idl ;

generators.register-standard msvc.compile.mc : MC : H RC : <toolset>msvc ;
generators.override msvc.compile.mc : mc.compile ;

generators.register [ new pch-generator msvc.compile.pch : PCHEADER : OBJ PCH : <toolset>msvc ] ;

#
# Declare flags and action for compilation
#
feature.feature debug-store : object database : propagated ;

flags msvc.compile CFLAGS <optimization>speed : /O2 ;
flags msvc.compile CFLAGS <optimization>space : /O1 ;

flags msvc.compile CFLAGS $(cpu-arch-ia64)/<instruction-set>$(cpu-type-itanium) : /G1 ;
flags msvc.compile CFLAGS $(cpu-arch-ia64)/<instruction-set>$(cpu-type-itanium2) : /G2 ;

flags msvc.compile CFLAGS <debug-symbols>on/<debug-store>object : /Z7 ;
flags msvc.compile CFLAGS <debug-symbols>on/<debug-store>database : /Zi ;
flags msvc.compile CFLAGS <optimization>off : /Od ;
flags msvc.compile CFLAGS <inlining>off : /Ob0 ;
flags msvc.compile CFLAGS <inlining>on : /Ob1 ;
flags msvc.compile CFLAGS <inlining>full : /Ob2 ;

flags msvc.compile CFLAGS <warnings>on : /W3 ;
flags msvc.compile CFLAGS <warnings>off : /W0 ;
flags msvc.compile CFLAGS <warnings>all : /W4 ;
flags msvc.compile CFLAGS <warnings-as-errors>on : /WX ;

flags msvc.compile C++FLAGS  <exception-handling>on/<asynch-exceptions>off/<extern-c-nothrow>off : /EHs ;
flags msvc.compile C++FLAGS  <exception-handling>on/<asynch-exceptions>off/<extern-c-nothrow>on : /EHsc ;
flags msvc.compile C++FLAGS  <exception-handling>on/<asynch-exceptions>on/<extern-c-nothrow>off : /EHa ;
flags msvc.compile C++FLAGS  <exception-handling>on/<asynch-exceptions>on/<extern-c-nothrow>on : /EHac ;

flags msvc.compile CFLAGS <rtti>on : /GR ;
flags msvc.compile CFLAGS <runtime-debugging>off/<runtime-link>shared : /MD ;
flags msvc.compile CFLAGS <runtime-debugging>on/<runtime-link>shared : /MDd ;

flags msvc.compile CFLAGS <runtime-debugging>off/<runtime-link>static/<threading>multi : /MT ;
flags msvc.compile CFLAGS <runtime-debugging>on/<runtime-link>static/<threading>multi : /MTd ;

flags msvc.compile.c OPTIONS <cflags> : ;
flags msvc.compile.c++ OPTIONS <cxxflags> : ;

flags msvc.compile PDB_CFLAG <debug-symbols>on/<debug-store>database : /Fd ;  # not used yet

flags msvc.compile DEFINES <define> ;
flags msvc.compile UNDEFS <undef> ;
flags msvc.compile INCLUDES <include> ;

flags msvc.compile PCH_SOURCE <pch-source> ;
flags msvc.compile PCH_HEADER <pch>on : <pch-header> ;
flags msvc.compile PCH_FILE <pch>on : <pch-file> ;

rule get-rspline ( target : lang-opt )
{
    CC_RSPLINE on $(target) = [ on $(target) return $(lang-opt) -U$(UNDEFS) $(CFLAGS) $(C++FLAGS) $(OPTIONS) -c $(nl)-D$(DEFINES) $(nl)\"-I$(INCLUDES)\" ] ;
}

rule compile-c-c++ ( targets + : sources * )
{
    DEPENDS $(<[1]) : [ on $(<[1]) return $(PCH_HEADER) ] ;
    DEPENDS $(<[1]) : [ on $(<[1]) return $(PCH_FILE) ] ;
}

actions compile-c-c++
{
    $(.CC) @"@($(<[1]:W).rsp:E="$(>[1]:W)" -Fo"$(<[1]:W)" -Yu"$(>[3]:D=)" -Fp"$(>[2]:W)" $(CC_RSPLINE))"
}

rule compile.c ( targets + : sources * : properties * )
{
    C++FLAGS on $(targets[1]) = ;
    get-rspline $(targets) : -TC ;
    compile-c-c++ $(<) : $(>) [ on $(<) return $(PCH_FILE) ] [ on $(<) return $(PCH_HEADER) ] ;
}

rule compile.c++ ( targets + : sources * : properties * )
{
    get-rspline $(targets[1]) : -TP ;
    compile-c-c++ $(<) : $(>) [ on $(<) return $(PCH_FILE) ] [ on $(<) return $(PCH_HEADER) ] ;
}

actions compile-pch
{
    $(.CC) @"@($(<[1]:W).rsp:E="$(>[2]:W)" -Fo"$(<[1]:W)" -Yc"$(>[1]:D=)" -Yl"__bjam_pch_symbol_$(>[1]:D=)" -Fp"$(<[2]:W)" $(CC_RSPLINE))"
}

rule compile.pch ( targets + : sources * : properties * )
{
    DEPENDS $(<) : [ on $(<) return $(PCH_SOURCE) ] ;
    get-rspline $(targets[1]) : -TP ;
    compile-pch $(targets) : $(sources) [ on $(<) return $(PCH_SOURCE) ] ;
}

actions compile.rc
{
    $(.RC) -l 0x409 -U$(UNDEFS) -D$(DEFINES) -I"$(INCLUDES)" -fo "$(<:W)" "$(>:W)"
}

# See midl.jam for details
TOUCH_FILE = [ common.file-touch-command ] ;

actions compile.idl
{
    $(.IDL) /nologo @"@($(<[1]:W).rsp:E=$(nl)"$(>:W)" $(nl)-D$(DEFINES) $(nl)"-I$(INCLUDES)" $(nl)-U$(UNDEFS) $(nl)$(MIDLFLAGS) $(nl)/tlb "$(<[1]:W)" $(nl)/h "$(<[2]:W)" $(nl)/iid "$(<[3]:W)" $(nl)/proxy "$(<[4]:W)" $(nl)/dlldata "$(<[5]:W)")"
    $(TOUCH_FILE) "$(<[4]:W)"  
    $(TOUCH_FILE) "$(<[5]:W)"  
}

# Declare flags and action for the assembler

flags msvc.compile.asm USER_ASMFLAGS <asmflags> : ;

#
# for the assembler the following options are turned on by default:
#
# -coff  generate COFF format object file (compatible with cl.exe output)
# -Zp4   align structures to 4 bytes
# -Cp    preserve case of user identifiers
# -Cx    preserve case in publics, externs

actions compile.asm
{
    $(.ASM) -nologo -c -coff -Zp4 -Cp -Cx $(USER_ASMFLAGS) -Fo "$(<:W)" "$(>:W)"
}

# Declare flags and action for linking
flags msvc.link PDB_LINKFLAG <debug-symbols>on/<debug-store>database : /PDB: ; # not used yet
flags msvc.link LINKFLAGS <debug-symbols>on : /DEBUG ;
flags msvc.link DEF_FILE <def-file> ;
# The linker disables the default optimizations when using /DEBUG. Whe have
# to enable them manually for release builds with debug symbols.
flags msvc LINKFLAGS <debug-symbols>on/<runtime-debugging>off : /OPT:REF,ICF ;

flags msvc LINKFLAGS <user-interface>console : /subsystem:console ;
flags msvc LINKFLAGS <user-interface>gui : /subsystem:windows ;
flags msvc LINKFLAGS <user-interface>wince : /subsystem:windowsce ;
flags msvc LINKFLAGS <user-interface>native : /subsystem:native ;
flags msvc LINKFLAGS <user-interface>auto : /subsystem:posix ;

flags msvc.link OPTIONS <linkflags> ;
flags msvc.link LINKPATH <library-path> ;


flags msvc.link FINDLIBS_ST <find-static-library> ;
flags msvc.link FINDLIBS_SA <find-shared-library> ;
flags msvc.link LIBRARY_OPTION <toolset>msvc : "" : unchecked ;
flags msvc.link LIBRARIES_MENTIONED_BY_FILE : <library-file> ;

flags msvc.archive AROPTIONS <archiveflags> ;


rule link.dll ( targets + : sources * : properties * )
{
    DEPENDS $(<) : [ on $(<) return $(DEF_FILE) ] ;
}

# Declare action for creating static libraries
# If library exists, remove it before adding files. See
# http://article.gmane.org/gmane.comp.lib.boost.build/4241    
# for rationale.
if [ os.name ] in NT
{    
    # The 'DEL' command would issue a message to stdout
    # if the file does not exist, so need a check.
    actions archive
    {  
        if exist "$(<[1])" DEL "$(<[1])"  
        $(.LD) $(AROPTIONS) /out:"$(<[1])" @"@($(<[1]:W).rsp:E=$(nl)"$(>)" $(nl)$(LIBRARIES_MENTIONED_BY_FILE) $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_ST:S=.lib)" $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_SA:S=.lib)")"
    }
}
else
{
    actions archive
    {  
        $(RM) "$(<[1])"
        $(.LD) $(AROPTIONS) /out:"$(<[1])" @"@($(<[1]:W).rsp:E=$(nl)"$(>)" $(nl)$(LIBRARIES_MENTIONED_BY_FILE) $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_ST:S=.lib)" $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_SA:S=.lib)")"
    }
}
        
# incremental linking a DLL causes no end of problems: if the
# actual exports don't change, the import .lib file is never
# updated. Therefore, the .lib is always out-of-date and gets
# rebuilt every time. I'm not sure that incremental linking is
# such a great idea in general, but in this case I'm sure we
# don't want it.

# Windows Manifests is a new way to specify dependencies 
# on managed DotNet assemblies and Windows native DLLs. The 
# manifests are embedded as resourses and are useful in 
# any PE targets (both DLL and EXE)

if [ os.name ] in NT
{
    actions link bind DEF_FILE
    {
        $(.LD) $(LINKFLAGS) /out:"$(<[1]:W)" /LIBPATH:"$(LINKPATH:W)" $(OPTIONS) @"@($(<[1]:W).rsp:E=$(nl)"$(>)" $(nl)$(LIBRARIES_MENTIONED_BY_FILE) $(nl)$(LIBRARIES) $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_ST:S=.lib)" $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_SA:S=.lib)")"
        if exist "$(<[1]).manifest" (
            $(.MT) -manifest "$(<[1]).manifest" "-outputresource:$(<[1]);1"
        )
    }

    actions link.dll bind DEF_FILE
    {
        $(.LD) /DLL $(LINKFLAGS) /out:"$(<[1]:W)" /IMPLIB:"$(<[2]:W)" /LIBPATH:"$(LINKPATH:W)" /def:$(DEF_FILE) $(OPTIONS) @"@($(<[1]:W).rsp:E=$(nl)"$(>)" $(nl)$(LIBRARIES_MENTIONED_BY_FILE) $(nl)$(LIBRARIES) $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_ST:S=.lib)" $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_SA:S=.lib)")"
        if exist "$(<[1]).manifest" (
            $(.MT) -manifest "$(<[1]).manifest" "-outputresource:$(<[1]);2"
        )
    }
}
else
{
    actions link bind DEF_FILE
    {
        $(.LD) $(LINKFLAGS) /out:"$(<[1]:W)" /LIBPATH:"$(LINKPATH:W)" $(OPTIONS) @"@($(<[1]:W).rsp:E=$(nl)"$(>)" $(nl)$(LIBRARIES_MENTIONED_BY_FILE) $(nl)$(LIBRARIES) $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_ST:S=.lib)" $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_SA:S=.lib)")"
        if test -e "$(<[1]).manifest"; then
            $(.MT) -manifest "$(<[1]:W).manifest" "-outputresource:$(<[1]:W);1"
        fi
    }

    actions link.dll bind DEF_FILE
    {
        $(.LD) /DLL $(LINKFLAGS) /out:"$(<[1]:W)" /IMPLIB:"$(<[2]:W)" /LIBPATH:"$(LINKPATH:W)" /def:$(DEF_FILE) $(OPTIONS) @"@($(<[1]:W).rsp:E=$(nl)"$(>)" $(nl)$(LIBRARIES_MENTIONED_BY_FILE) $(nl)$(LIBRARIES) $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_ST:S=.lib)" $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_SA:S=.lib)")"
        if test -e "$(<[1]).manifest"; then
            $(.MT) -manifest "$(<[1]:W).manifest" "-outputresource:$(<[1]:W);2"
        fi
    }
}


actions compile.mc
{
    $(.MC) $(MCFLAGS) -h "$(<[1]:DW)" -r "$(<[2]:DW)" "$(>:W)"
}


#
# Autodetection code
#     detects versions listed as '.known-versions' using registry, environment 
#     and checking default paths. Supports both native Windows and Cygwin.
#

.ProgramFiles = [ path.make [ common.get-program-files-dir ] ] ;

.known-versions = 8.0 8.0express 7.1 7.1toolkit 7.0 6.0 ;

# Version aliases
.version-alias-6 = 6.0 ;
.version-alias-7 = 7.0 ;
.version-alias-8 = 8.0 ;
 
# Name of the registry key that contains Visual C++ installation path
#   (relative to "HKEY_LOCAL_MACHINE\SOFTWARE\\Microsoft"
.version-6.0-reg = "VisualStudio\\6.0\\Setup\\Microsoft Visual C++" ;
.version-7.0-reg = "VisualStudio\\7.0\\Setup\\VC" ;
.version-7.1-reg = "VisualStudio\\7.1\\Setup\\VC" ;
.version-8.0-reg = "VisualStudio\\8.0\\Setup\\VC" ;
.version-8.0express-reg = "VCExpress\\8.0\\Setup\\VC" ;

# Visual C++ Toolkit 2003 do not store its installation path in the registry.
# The environment variable 'VCToolkitInstallDir' and the default installation 
# path will be checked instead.
.version-7.1toolkit-path    = "Microsoft Visual C++ Toolkit 2003" "bin" ;
.version-7.1toolkit-env     = VCToolkitInstallDir ;

# Path to the folder containing "cl.exe" relative to the value of the corresponding 
# environment variable
.version-7.1toolkit-envpath = "bin" ;


# Validates given path, registers found configuration and prints debug information 
# about it.
local rule register-configuration ( version : path ? )
{
    if $(path)
    {
        local command = [ GLOB $(path) : cl.exe ] ;

        if $(command)
        {
            if $(.debug-configuration)
            {
                ECHO "notice: msvc-$(version) detected, command: '$(command)'" ;
            }

            $(.versions).register $(version) ;
            $(.versions).set $(version) : options : <command>$(command) ;
        }
    }
}

if [ os.name ] in NT CYGWIN
{
    # Get installation paths from the registry

    for local i in $(.known-versions)
    {
        if $(.version-$(i)-reg)
        {
            local vc-path = [ W32_GETREG
                "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\"$(.version-$(i)-reg)
                : "ProductDir" ] ;
            
            if $(vc-path)
            {
                vc-path = [ path.native [ path.join [ path.make-NT $(vc-path) ] "bin" ] ] ;
                register-configuration $(i) : $(vc-path) ;
            }
        }
    }
}


# Check environment and default installation paths

for local i in $(.known-versions)
{
    if ! $(i) in [ $(.versions).all ]
    {
        register-configuration $(i) : [ default-path $(i) ] ;
    }
}