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# -*- mode: python; -*-
# scons file to build spidermonkey
# experimental
#

import os
import subprocess

AddOption( "--64",
           dest="force64",
           type="string",
           nargs=0,
           action="store",
           help="whether to force 64 bit" )

coreFiles = [ "jsapi.c" ,
              "jsarena.c" ,
              "jsarray.c" ,
              "jsatom.c" ,
              "jsbool.c" ,
              "jscntxt.c" ,
              "jsdate.c" ,
              "jsdbgapi.c" ,
              "jsdhash.c" ,
              "jsdtoa.c" ,
              "jsemit.c" ,
              "jsexn.c" ,
              "jsfun.c" ,
              "jsgc.c" ,
              "jshash.c" ,
              "jsiter.c" ,
              "jsinterp.c" ,
              "jslock.c" ,
              "jslog2.c" ,
              "jslong.c" ,
              "jsmath.c" ,
              "jsnum.c" ,
              "jsobj.c" ,
              "jsopcode.c" ,
              "jsparse.c" ,
              "jsprf.c" ,
              "jsregexp.c" ,
              "jsscan.c" ,
              "jsscope.c" ,
              "jsscript.c" ,
              "jsstr.c" ,
              "jsutil.c" ,
              "jsxdrapi.c" ,
              "jsxml.c" ,
              "prmjtime.c" ]


force64 = GetOption( "force64" ) is not None

msarch = None
if force64:
    msarch = "amd64"


env = Environment( MSVS_ARCH=msarch )
nix = False


def findVersion( root , choices ):
    if not isinstance(root, list):
        root = [root]
    for r in root:
        for c in choices:
            if ( os.path.exists( r + c ) ):
                return r + c
    raise RuntimeError("can't find a version of [" + repr(root) + "] choices: " + repr(choices))


if "win32" == os.sys.platform:

    for pathdir in env['ENV']['PATH'].split(os.pathsep):
if os.path.exists(os.path.join(pathdir, 'cl.exe')):
            print( "found visual studio at " + pathdir )
break
    else:
#use current environment
        print "using current environment (PATH etc.) settings"
        #print os.environ
env['ENV'] = dict(os.environ)
    
    if force64:
        env.Append( CPPDEFINES=["_AMD64_=1"] )
    else:
        env.Append( CPPDEFINES=["_X86_=1"] )

    env.Append( CPPFLAGS= " /nologo /MT /W3 /Gm /EHsc /Zi /Od /Fp " )
    env.Append( CPPDEFINES=[ "_WINDOWS" , "WIN32" , "XP_WIN" ] )
    
    winSDKHome = findVersion( [ "C:/Program Files/Microsoft SDKs/Windows/", "C:/Program Files (x86)/Microsoft SDKs/Windows/" ] ,
                              [ "v6.0" , "v6.0a" , "v6.1", "v7.0A" ] )

    env.Append( CPPPATH=[ winSDKHome + "/Include" ] )
    if force64:
        env.Append( LIBPATH=[ winSDKHome + "/Lib/x64" ] )
    else:
        env.Append( LIBPATH=[ winSDKHome + "/Lib" ] )

elif "darwin" == os.sys.platform:
    nix = True

elif "sunos5" == os.sys.platform:
    nix = True

    env.Append( CPPDEFINES=["SVR4" , "SYSV" , "SOLARIS" , "HAVE_LOCALTIMER_" ] )

    if force64:
        env.Append( CPPDEFINES=[ "HAVE_VA_LIST_AS_ARRAY" ] )

    if os.uname()[1].count( "joyent" ) >= 1:
        print( "JOYENT" )
        env["CC"] = "/opt/gcc/gcc44/bin/gcc"
        env["CXX"] = "/opt/gcc/gcc44/bin/g++"

elif "freebsd7" == os.sys.platform:
    nix = True

elif "linux2" == os.sys.platform:
    nix = True

else:
    print( "unknown platform: " + os.sys.platform )
    Exit(-1)

if nix:
    env.Append( CPPDEFINES=[ "XP_UNIX" ] )
    if force64:
        env.Append( CPPFLAGS=" -m64 " )
        env.Append( LINKFLAGS=" -m64 " )

env.Append( CPPDEFINES=[ "JSFILE" , "EXPORT_JS_API" , "JS_C_STRINGS_ARE_UTF8" ] )

env.StaticLibrary( "js" , coreFiles )

jskwgen = str( env.Program( "jskwgen" , [ "jskwgen.c" ] )[0] )
jscpucfg = str( env.Program( "jscpucfg" , [ "jscpucfg.c" ] )[0] )

def buildAutoFile( target , source , env ):
    outFile = str( target[0] )

    cmd = str( source[0] )
    if nix:
        cmd = "./" + cmd

    output = subprocess.Popen( [ cmd ], stdout=subprocess.PIPE).communicate()[0]
    output = output.replace( '\r' , '\n' )
    out = open( outFile , 'w' )
    out.write( output )
    return None

autoBuilder = Builder(
    action = buildAutoFile ,
    suffix = '.h')

env.Append( BUILDERS={ 'Auto' : autoBuilder } )
env.Auto( "jsautokw.h" , [ jskwgen ] )
env.Auto( "jsautocfg.h" , [ jscpucfg ] )


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