wscript

#!/usr/bin/env python

# Copyright Joyent, Inc. and other Node contributors.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to permit
# persons to whom the Software is furnished to do so, subject to the
# following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
# NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
# DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
# USE OR OTHER DEALINGS IN THE SOFTWARE.

import re
import Options
import sys, os, shutil, glob
import Utils
from Utils import cmd_output
from os.path import join, dirname, abspath, normpath
from logging import fatal

cwd = os.getcwd()
APPNAME="node.js"

# Use the directory that this file is found in to find the tools
# directory where the js2c.py file can be found.
sys.path.append(sys.argv[0] + '/tools');
import js2c

srcdir = '.'
blddir = 'build'
supported_archs = ('arm', 'ia32', 'x64') # 'mips' supported by v8, but not node

jobs=1
if os.environ.has_key('JOBS'):
 jobs = int(os.environ['JOBS'])

def safe_path(path):
 return path.replace("\\", "/")

def canonical_cpu_type(arch):
 m = {'x86': 'ia32', 'i386':'ia32', 'x86_64':'x64', 'amd64':'x64'}
 if arch in m: arch = m[arch]
 if not arch in supported_archs:
 raise Exception("supported architectures are "+', '.join(supported_archs)+\
 " but NOT '" + arch + "'.")
 return arch

def set_options(opt):
 # the gcc module provides a --debug-level option
 opt.tool_options('compiler_cxx')
 opt.tool_options('compiler_cc')
 opt.tool_options('misc')
 opt.add_option( '--libdir'
		, action='store'
		, type='string'
		, default=False
		, help='Install into this libdir [Default: ${PREFIX}/lib]'
		)
 opt.add_option( '--debug'
 , action='store_true'
 , default=False
 , help='Build debug variant [Default: False]'
 , dest='debug'
 )
 opt.add_option( '--profile'
 , action='store_true'
 , default=False
 , help='Enable profiling [Default: False]'
 , dest='profile'
 )
 opt.add_option( '--efence'
 , action='store_true'
 , default=False
 , help='Build with -lefence for debugging [Default: False]'
 , dest='efence'
 )

 opt.add_option( '--without-snapshot'
 , action='store_true'
 , default=False
 , help='Build without snapshotting V8 libraries. You might want to set this for cross-compiling. [Default: False]'
 , dest='without_snapshot'
 )

 opt.add_option( '--without-ssl'
 , action='store_true'
 , default=False
 , help='Build without SSL'
 , dest='without_ssl'
 )


 opt.add_option('--shared-v8'
 , action='store_true'
 , default=False
 , help='Link to a shared V8 DLL instead of static linking'
 , dest='shared_v8'
 )

 opt.add_option( '--shared-v8-includes'
 , action='store'
 , default=False
 , help='Directory containing V8 header files'
 , dest='shared_v8_includes'
 )

 opt.add_option( '--shared-v8-libpath'
 , action='store'
 , default=False
 , help='A directory to search for the shared V8 DLL'
 , dest='shared_v8_libpath'
 )

 opt.add_option( '--shared-v8-libname'
 , action='store'
 , default=False
 , help="Alternative lib name to link to (default: 'v8')"
 , dest='shared_v8_libname'
 )

 opt.add_option( '--openssl-includes'
 , action='store'
 , default=False
 , help='A directory to search for the OpenSSL includes'
 , dest='openssl_includes'
 )

 opt.add_option( '--openssl-libpath'
 , action='store'
 , default=False
 , help="A directory to search for the OpenSSL libraries"
 , dest='openssl_libpath'
 )

 opt.add_option( '--no-ssl2'
 , action='store_true'
 , default=False
 , help="Disable OpenSSL v2"
 , dest='openssl_nov2'
 )

 opt.add_option( '--gdb'
 , action='store_true'
 , default=False
 , help="add gdb support"
 , dest='use_gdbjit'
 )


 opt.add_option('--shared-cares'
 , action='store_true'
 , default=False
 , help='Link to a shared C-Ares DLL instead of static linking'
 , dest='shared_cares'
 )

 opt.add_option( '--shared-cares-includes'
 , action='store'
 , default=False
 , help='Directory containing C-Ares header files'
 , dest='shared_cares_includes'
 )

 opt.add_option( '--shared-cares-libpath'
 , action='store'
 , default=False
 , help='A directory to search for the shared C-Ares DLL'
 , dest='shared_cares_libpath'
 )


 opt.add_option('--shared-libev'
 , action='store_true'
 , default=False
 , help='Link to a shared libev DLL instead of static linking'
 , dest='shared_libev'
 )

 opt.add_option( '--shared-libev-includes'
 , action='store'
 , default=False
 , help='Directory containing libev header files'
 , dest='shared_libev_includes'
 )

 opt.add_option( '--shared-libev-libpath'
 , action='store'
 , default=False
 , help='A directory to search for the shared libev DLL'
 , dest='shared_libev_libpath'
 )

 opt.add_option( '--with-dtrace'
 , action='store_true'
 , default=False
 , help='Build with DTrace (experimental)'
 , dest='dtrace'
 )
 

 opt.add_option( '--product-type'
 , action='store'
 , default='program'
 , help='What kind of product to produce (program, cstaticlib '\
 'or cshlib) [default: %default]'
 , dest='product_type'
 )

 opt.add_option( '--dest-cpu'
 , action='store'
 , default=None
 , help='CPU architecture to build for. Valid values are: '+\
 ', '.join(supported_archs)
 , dest='dest_cpu'
 )




def configure(conf):
 conf.check_tool('compiler_cxx')
 if not conf.env.CXX: conf.fatal('c++ compiler not found')
 conf.check_tool('compiler_cc')
 if not conf.env.CC: conf.fatal('c compiler not found')

 o = Options.options

 if o.libdir:
 conf.env['LIBDIR'] = o.libdir
 else:
 conf.env['LIBDIR'] = conf.env['PREFIX'] + '/lib'

 conf.env["USE_DEBUG"] = o.debug
 # Snapshot building does noet seem to work on cygwin and mingw32
 conf.env["SNAPSHOT_V8"] = not o.without_snapshot and not sys.platform.startswith("win32")
 if sys.platform.startswith("sunos"):
 conf.env["SNAPSHOT_V8"] = False
 conf.env["USE_PROFILING"] = o.profile

 conf.env["USE_SHARED_V8"] = o.shared_v8 or o.shared_v8_includes or o.shared_v8_libpath or o.shared_v8_libname
 conf.env["USE_SHARED_CARES"] = o.shared_cares or o.shared_cares_includes or o.shared_cares_libpath
 conf.env["USE_SHARED_LIBEV"] = o.shared_libev or o.shared_libev_includes or o.shared_libev_libpath

 conf.env["USE_GDBJIT"] = o.use_gdbjit

 conf.check(lib='dl', uselib_store='DL')
 if not sys.platform.startswith("sunos") and not sys.platform.startswith("cygwin") and not sys.platform.startswith("win32"):
 conf.env.append_value("CCFLAGS", "-rdynamic")
 conf.env.append_value("LINKFLAGS_DL", "-rdynamic")

 if sys.platform.startswith("freebsd") or sys.platform.startswith("openbsd"):
 conf.check(lib='kvm', uselib_store='KVM')

 #if Options.options.debug:
 # conf.check(lib='profiler', uselib_store='PROFILER')

 if Options.options.dtrace:
 if not sys.platform.startswith("sunos"):
 conf.fatal('DTrace support only currently available on Solaris')

 conf.find_program('dtrace', var='DTRACE', mandatory=True)
 conf.env["USE_DTRACE"] = True
 conf.env.append_value("CXXFLAGS", "-DHAVE_DTRACE=1")

 if Options.options.efence:
 conf.check(lib='efence', libpath=['/usr/lib', '/usr/local/lib'], uselib_store='EFENCE')

 if sys.platform.startswith("freebsd"):
 if not conf.check(lib="execinfo",
 includes=['/usr/include', '/usr/local/include'],
 libpath=['/usr/lib', '/usr/local/lib'],
 uselib_store="EXECINFO"):
 conf.fatal("Install the libexecinfo port from /usr/ports/devel/libexecinfo.")

 if not Options.options.without_ssl:
 # Don't override explicitly supplied openssl paths with pkg-config results.
 explicit_openssl = o.openssl_includes or o.openssl_libpath

 # Disable ssl v2 methods
 if o.openssl_nov2:
 conf.env.append_value("CPPFLAGS", "-DOPENSSL_NO_SSL2=1")

 if not explicit_openssl and conf.check_cfg(package='openssl',
 args='--cflags --libs',
 uselib_store='OPENSSL'):
 Options.options.use_openssl = conf.env["USE_OPENSSL"] = True
 conf.env.append_value("CPPFLAGS", "-DHAVE_OPENSSL=1")
 else:
 if o.openssl_libpath: 
 openssl_libpath = [o.openssl_libpath]
 elif not sys.platform.startswith('win32'):
 openssl_libpath = ['/usr/lib', '/usr/local/lib', '/opt/local/lib', '/usr/sfw/lib']
 else:
 openssl_libpath = [normpath(join(cwd, '../openssl'))]

 if o.openssl_includes: 
 openssl_includes = [o.openssl_includes]
 elif not sys.platform.startswith('win32'):
 openssl_includes = [];
 else:
 openssl_includes = [normpath(join(cwd, '../openssl/include'))];

 openssl_lib_names = ['ssl', 'crypto']
 if sys.platform.startswith('win32'):
 openssl_lib_names += ['ws2_32', 'gdi32']

 libssl = conf.check_cc(lib=openssl_lib_names,
 header_name='openssl/ssl.h',
 function_name='SSL_library_init',
 includes=openssl_includes,
 libpath=openssl_libpath,
 uselib_store='OPENSSL')

 libcrypto = conf.check_cc(lib='crypto',
 header_name='openssl/crypto.h',
 includes=openssl_includes,
 libpath=openssl_libpath,
 uselib_store='OPENSSL')

 if libcrypto and libssl:
 conf.env["USE_OPENSSL"] = Options.options.use_openssl = True
 conf.env.append_value("CPPFLAGS", "-DHAVE_OPENSSL=1")
 elif sys.platform.startswith('win32'):
 conf.fatal("Could not autodetect OpenSSL support. " +
 "Use the --openssl-libpath and --openssl-includes options to set the search path. " +
 "Use configure --without-ssl to disable this message.")
 else:
 conf.fatal("Could not autodetect OpenSSL support. " +
 "Make sure OpenSSL development packages are installed. " +
 "Use configure --without-ssl to disable this message.")
 else:
 Options.options.use_openssl = conf.env["USE_OPENSSL"] = False

 conf.check(lib='util', libpath=['/usr/lib', '/usr/local/lib'],
 uselib_store='UTIL')

 # normalize DEST_CPU from --dest-cpu, DEST_CPU or built-in value
 if Options.options.dest_cpu and Options.options.dest_cpu:
 conf.env['DEST_CPU'] = canonical_cpu_type(Options.options.dest_cpu)
 elif 'DEST_CPU' in os.environ and os.environ['DEST_CPU']:
 conf.env['DEST_CPU'] = canonical_cpu_type(os.environ['DEST_CPU'])
 elif 'DEST_CPU' in conf.env and conf.env['DEST_CPU']:
 conf.env['DEST_CPU'] = canonical_cpu_type(conf.env['DEST_CPU'])

 conf.check(lib='rt', uselib_store='RT')

 if sys.platform.startswith("sunos"):
 if not conf.check(lib='socket', uselib_store="SOCKET"):
 conf.fatal("Cannot find socket library")
 if not conf.check(lib='nsl', uselib_store="NSL"):
 conf.fatal("Cannot find nsl library")
 if not conf.check(lib='kstat', uselib_store="KSTAT"):
 conf.fatal("Cannot find kstat library")

 conf.sub_config('deps/libeio')

 if conf.env['USE_SHARED_V8']:
 v8_includes = [];
 if o.shared_v8_includes: v8_includes.append(o.shared_v8_includes);

 v8_libpath = [];
 if o.shared_v8_libpath: v8_libpath.append(o.shared_v8_libpath);

 if not o.shared_v8_libname: o.shared_v8_libname = 'v8'

 if not conf.check_cxx(lib=o.shared_v8_libname, header_name='v8.h',
 uselib_store='V8',
 includes=v8_includes,
 libpath=v8_libpath):
 conf.fatal("Cannot find v8")

 if o.debug:
 if not conf.check_cxx(lib=o.shared_v8_libname + '_g', header_name='v8.h',
 uselib_store='V8_G',
 includes=v8_includes,
 libpath=v8_libpath):
 conf.fatal("Cannot find v8_g")

 if sys.platform.startswith("win32"):
 # On win32 CARES is always static, so we can call internal functions like ares_inet_pton et al. 
 # CARES_STATICLIB must be defined or gcc will try to make DLL stub calls
 conf.env.append_value('CPPFLAGS', '-DCARES_STATICLIB=1')
 conf.sub_config('deps/c-ares')
 elif conf.env['USE_SHARED_CARES']:
 cares_includes = [];
 if o.shared_cares_includes: cares_includes.append(o.shared_cares_includes);
 cares_libpath = [];
 if o.shared_cares_libpath: cares_libpath.append(o.shared_cares_libpath);
 if not conf.check_cxx(lib='cares',
 header_name='ares.h',
 uselib_store='CARES',
 includes=cares_includes,
 libpath=cares_libpath):
 conf.fatal("Cannot find c-ares")
 else:
 conf.sub_config('deps/c-ares')


 if conf.env['USE_SHARED_LIBEV']:
 libev_includes = [];
 if o.shared_libev_includes: libev_includes.append(o.shared_libev_includes);
 libev_libpath = [];
 if o.shared_libev_libpath: libev_libpath.append(o.shared_libev_libpath);
 if not conf.check_cxx(lib='ev', header_name='ev.h',
 uselib_store='EV',
 includes=libev_includes,
 libpath=libev_libpath):
 conf.fatal("Cannot find libev")
 else:
 conf.sub_config('deps/libev')



 conf.define("HAVE_CONFIG_H", 1)

 if sys.platform.startswith("sunos"):
 conf.env.append_value ('CCFLAGS', '-threads')
 conf.env.append_value ('CXXFLAGS', '-threads')
 #conf.env.append_value ('LINKFLAGS', ' -threads')
 elif not sys.platform.startswith("cygwin") and not sys.platform.startswith("win32"):
 threadflags='-pthread'
 conf.env.append_value ('CCFLAGS', threadflags)
 conf.env.append_value ('CXXFLAGS', threadflags)
 conf.env.append_value ('LINKFLAGS', threadflags)
 if sys.platform.startswith("darwin"):
 # used by platform_darwin_*.cc
 conf.env.append_value('LINKFLAGS', ['-framework','Carbon'])
 # cross compile for architecture specified by DEST_CPU
 if 'DEST_CPU' in conf.env:
 arch = conf.env['DEST_CPU']
 # map supported_archs to GCC names:
 arch_mappings = {'ia32': 'i386', 'x64': 'x86_64'}
 if arch in arch_mappings:
 arch = arch_mappings[arch]
 flags = ['-arch', arch]
 conf.env.append_value('CCFLAGS', flags)
 conf.env.append_value('CXXFLAGS', flags)
 conf.env.append_value('LINKFLAGS', flags)
 if 'DEST_CPU' in conf.env:
 arch = conf.env['DEST_CPU']
 # TODO: -m32 is only available on 64 bit machines, so check host type
 flags = None
 if arch == 'ia32':
 flags = '-m32'
 if flags:
 conf.env.append_value('CCFLAGS', flags)
 conf.env.append_value('CXXFLAGS', flags)
 conf.env.append_value('LINKFLAGS', flags)

 # Needed for getaddrinfo in libeio
 conf.env.append_value("CPPFLAGS", "-DX_STACKSIZE=%d" % (1024*64))
 # LFS
 conf.env.append_value('CPPFLAGS', '-D_LARGEFILE_SOURCE')
 conf.env.append_value('CPPFLAGS', '-D_FILE_OFFSET_BITS=64')
 conf.env.append_value('CPPFLAGS', '-DEV_MULTIPLICITY=0')

 # Makes select on windows support more than 64 FDs
 if sys.platform.startswith("win32"):
 conf.env.append_value('CPPFLAGS', '-DFD_SETSIZE=1024');

 ## needed for node_file.cc fdatasync
 ## Strangely on OSX 10.6 the g++ doesn't see fdatasync but gcc does?
 code = """
 #include <unistd.h>
 int main(void)
 {
 int fd = 0;
 fdatasync (fd);
 return 0;
 }
 """
 if conf.check_cxx(msg="Checking for fdatasync(2) with c++", fragment=code):
 conf.env.append_value('CPPFLAGS', '-DHAVE_FDATASYNC=1')
 else:
 conf.env.append_value('CPPFLAGS', '-DHAVE_FDATASYNC=0')

 # platform
 conf.env.append_value('CPPFLAGS', '-DPLATFORM="' + conf.env['DEST_OS'] + '"')

 # posix?
 if not sys.platform.startswith('win'):
 conf.env.append_value('CPPFLAGS', '-D__POSIX__=1')

 platform_file = "src/platform_%s.cc" % conf.env['DEST_OS']
 if os.path.exists(join(cwd, platform_file)):
 Options.options.platform_file = True
 conf.env["PLATFORM_FILE"] = platform_file
 else:
 Options.options.platform_file = False
 conf.env["PLATFORM_FILE"] = "src/platform_none.cc"

 if conf.env['USE_PROFILING'] == True:
 conf.env.append_value('CPPFLAGS', '-pg')
 conf.env.append_value('LINKFLAGS', '-pg')

 if sys.platform.startswith("win32"):
 conf.env.append_value('LIB', 'ws2_32')
 conf.env.append_value('LIB', 'winmm')

 conf.env.append_value('CPPFLAGS', '-Wno-unused-parameter');
 conf.env.append_value('CPPFLAGS', '-D_FORTIFY_SOURCE=2');

 # Split off debug variant before adding variant specific defines
 debug_env = conf.env.copy()
 conf.set_env_name('debug', debug_env)

 if (sys.platform.startswith("win32")):
 # Static pthread - crashes
 #conf.env.append_value('LINKFLAGS', '../deps/pthreads-w32/libpthreadGC2.a')
 #debug_env.append_value('LINKFLAGS', '../deps/pthreads-w32/libpthreadGC2d.a')
 # Pthread dll
 conf.env.append_value('LIB', 'pthread.dll')

 # Configure debug variant
 conf.setenv('debug')
 debug_env.set_variant('debug')
 debug_env.append_value('CPPFLAGS', '-DDEBUG')
 debug_compile_flags = ['-g', '-O0', '-Wall', '-Wextra']
 debug_env.append_value('CCFLAGS', debug_compile_flags)
 debug_env.append_value('CXXFLAGS', debug_compile_flags)
 conf.write_config_header("config.h")

 # Configure default variant
 conf.setenv('default')
 default_compile_flags = ['-g', '-O3']
 conf.env.append_value('CCFLAGS', default_compile_flags)
 conf.env.append_value('CXXFLAGS', default_compile_flags)
 conf.write_config_header("config.h")


def v8_cmd(bld, variant):
 scons = join(cwd, 'tools/scons/scons.py')
 deps_src = join(bld.path.abspath(),"deps")
 v8dir_src = join(deps_src,"v8")

 # NOTE: We want to compile V8 to export its symbols. I.E. Do not want
 # -fvisibility=hidden. When using dlopen() it seems that the loaded DSO
 # cannot see symbols in the executable which are hidden, even if the
 # executable is statically linked together...

 # XXX Change this when v8 defaults x86_64 to native builds
 # Possible values are (arm, ia32, x64, mips).
 arch = ""
 if bld.env['DEST_CPU']:
 arch = "arch="+bld.env['DEST_CPU']

 toolchain = "gcc"

 if variant == "default":
 mode = "release"
 else:
 mode = "debug"

 if bld.env["SNAPSHOT_V8"]:
 snapshot = "snapshot=on"
 else:
 snapshot = ""

 cmd_R = sys.executable + ' "%s" -j %d -C "%s" -Y "%s" visibility=default mode=%s %s toolchain=%s library=static %s'

 cmd = cmd_R % ( scons
 , Options.options.jobs
 , safe_path(bld.srcnode.abspath(bld.env_of_name(variant)))
 , safe_path(v8dir_src)
 , mode
 , arch
 , toolchain
 , snapshot
 )

 if bld.env["USE_GDBJIT"]:
 cmd += ' gdbjit=on '

 if sys.platform.startswith("sunos"):
 cmd += ' toolchain=gcc strictaliasing=off'



 return ("echo '%s' && " % cmd) + cmd


def build_v8(bld):
 v8 = bld.new_task_gen(
 source = 'deps/v8/SConstruct '
 + bld.path.ant_glob('v8/include/*')
 + bld.path.ant_glob('v8/src/*'),
 target = bld.env["staticlib_PATTERN"] % "v8",
 rule = v8_cmd(bld, "default"),
 before = "cxx",
 install_path = None)
 v8.uselib = "EXECINFO"
 bld.env["CPPPATH_V8"] = "deps/v8/include"
 t = join(bld.srcnode.abspath(bld.env_of_name("default")), v8.target)
 bld.env_of_name('default').append_value("LINKFLAGS_V8", t)


 ### v8 debug
 if bld.env["USE_DEBUG"]:
 v8_debug = v8.clone("debug")
 v8_debug.rule = v8_cmd(bld, "debug")
 v8_debug.target = bld.env["staticlib_PATTERN"] % "v8_g"
 v8_debug.uselib = "EXECINFO"
 bld.env["CPPPATH_V8_G"] = "deps/v8/include"
 t = join(bld.srcnode.abspath(bld.env_of_name("debug")), v8_debug.target)
 bld.env_of_name('debug').append_value("LINKFLAGS_V8_G", t)

 bld.install_files('${PREFIX}/include/node/', 'deps/v8/include/*.h')


def build(bld):
 ## This snippet is to show full commands as WAF executes
 import Build
 old = Build.BuildContext.exec_command
 def exec_command(self, cmd, **kw):
 if isinstance(cmd, list): print(" ".join(cmd))
 return old(self, cmd, **kw)
 Build.BuildContext.exec_command = exec_command

 Options.options.jobs=jobs
 product_type = Options.options.product_type
 product_type_is_lib = product_type != 'program'

 print "DEST_OS: " + bld.env['DEST_OS']
 print "DEST_CPU: " + bld.env['DEST_CPU']
 print "Parallel Jobs: " + str(Options.options.jobs)
 print "Product type: " + product_type

 bld.add_subdirs('deps/libeio')

 if not bld.env['USE_SHARED_V8']: build_v8(bld)
 if not bld.env['USE_SHARED_LIBEV']: bld.add_subdirs('deps/libev')
 if not bld.env['USE_SHARED_CARES']: bld.add_subdirs('deps/c-ares')


 ### http_parser
 http_parser = bld.new_task_gen("cc")
 http_parser.source = "deps/http_parser/http_parser.c"
 http_parser.includes = "deps/http_parser/"
 http_parser.name = "http_parser"
 http_parser.target = "http_parser"
 http_parser.install_path = None
 if bld.env["USE_DEBUG"]:
 http_parser.clone("debug")
 if product_type_is_lib:
 http_parser.ccflags = '-fPIC'

 ### src/native.cc
 def make_macros(loc, content):
 f = open(loc, 'a')
 f.write(content)
 f.close

 macros_loc_debug = join(
 bld.srcnode.abspath(bld.env_of_name("debug")),
 "macros.py"
 )

 macros_loc_default = join(
 bld.srcnode.abspath(bld.env_of_name("default")),
 "macros.py"
 )

 ### We need to truncate the macros.py file
 f = open(macros_loc_debug, 'w')
 f.close
 f = open(macros_loc_default, 'w')
 f.close

 make_macros(macros_loc_debug, "") # leave debug(x) as is in debug build
 # replace debug(x) with nothing in release build
 make_macros(macros_loc_default, "macro debug(x) = ;\n")
 make_macros(macros_loc_default, "macro assert(x) = ;\n")

 if not bld.env["USE_DTRACE"]:
 probes = [
 'DTRACE_HTTP_CLIENT_REQUEST',
 'DTRACE_HTTP_CLIENT_RESPONSE',
 'DTRACE_HTTP_SERVER_REQUEST',
 'DTRACE_HTTP_SERVER_RESPONSE',
 'DTRACE_NET_SERVER_CONNECTION',
 'DTRACE_NET_STREAM_END',
 'DTRACE_NET_SOCKET_READ',
 'DTRACE_NET_SOCKET_WRITE'
 ]

 for probe in probes:
 make_macros(macros_loc_default, "macro %s(x) = ;\n" % probe)
 make_macros(macros_loc_debug, "macro %s(x) = ;\n" % probe)

 def javascript_in_c(task):
 env = task.env
 source = map(lambda x: x.srcpath(env), task.inputs)
 targets = map(lambda x: x.srcpath(env), task.outputs)
 source.append(macros_loc_default)
 js2c.JS2C(source, targets)

 def javascript_in_c_debug(task):
 env = task.env
 source = map(lambda x: x.srcpath(env), task.inputs)
 targets = map(lambda x: x.srcpath(env), task.outputs)
 source.append(macros_loc_debug)
 js2c.JS2C(source, targets)

 native_cc = bld.new_task_gen(
 source='src/node.js ' + bld.path.ant_glob('lib/*.js'),
 target="src/node_natives.h",
 before="cxx",
 install_path=None
 )

 # Add the rule /after/ cloning the debug
 # This is a work around for an error had in python 2.4.3 (I'll paste the
 # error that was had into the git commit meessage. git-blame to find out
 # where.)
 if bld.env["USE_DEBUG"]:
 native_cc_debug = native_cc.clone("debug")
 native_cc_debug.rule = javascript_in_c_debug

 native_cc.rule = javascript_in_c_debug

 if bld.env["USE_DTRACE"]:
 dtrace = bld.new_task_gen(
 name = "dtrace",
 source = "src/node_provider.d",
 target = "src/node_provider.h",
 rule = "%s -x nolibs -h -o ${TGT} -s ${SRC}" % (bld.env.DTRACE),
 before = "cxx",
 )

 if bld.env["USE_DEBUG"]:
 dtrace_g = dtrace.clone("debug")

 bld.install_files('${LIBDIR}/dtrace', 'src/node.d')

 if sys.platform.startswith("sunos"):
 #
 # The USDT DTrace provider works slightly differently on Solaris than on
 # the Mac; on Solaris, any objects that have USDT DTrace probes must be
 # post-processed with the DTrace command. (This is not true on the
 # Mac, which has first-class linker support for USDT probes.) On
 # Solaris, we must therefore post-process our object files. Waf doesn't
 # seem to really have a notion for this, so we inject a task after
 # compiling and before linking, and then find all of the node object
 # files and shuck them off to dtrace (which will modify them in place
 # as appropriate).
 #
 def dtrace_postprocess(task):
 abspath = bld.srcnode.abspath(bld.env_of_name(task.env.variant()))
 objs = glob.glob(abspath + 'src/*.o')
 source = task.inputs[0].srcpath(task.env)
 target = task.outputs[0].srcpath(task.env)
 cmd = '%s -G -x nolibs -s %s -o %s %s' % (task.env.DTRACE,
 source,
 target,
 ' '.join(objs))
 Utils.exec_command(cmd)

 dtracepost = bld.new_task_gen(
 name = "dtrace-postprocess",
 source = "src/node_provider.d",
 target = "node_provider.o",
 always = True,
 before = "cxx_link",
 after = "cxx",
 rule = dtrace_postprocess
 )

 t = join(bld.srcnode.abspath(bld.env_of_name("default")), dtracepost.target)
 bld.env_of_name('default').append_value('LINKFLAGS', t)

 #
 # Note that for the same (mysterious) issue outlined above with respect
 # to assigning the rule to native_cc/native_cc_debug, we must apply the
 # rule to dtracepost/dtracepost_g only after they have been cloned. We
 # also must put node_provider.o on the link line, but because we
 # (apparently?) lack LINKFLAGS in debug, we (shamelessly) stowaway on
 # LINKFLAGS_V8_G.
 #
 if bld.env["USE_DEBUG"]:
 dtracepost_g = dtracepost.clone("debug")
 dtracepost_g.rule = dtrace_postprocess
 t = join(bld.srcnode.abspath(bld.env_of_name("debug")), dtracepost.target)
 bld.env_of_name("debug").append_value('LINKFLAGS_V8_G', t)


 ### node lib
 node = bld.new_task_gen("cxx", product_type)
 node.name = "node"
 node.target = "node"
 node.uselib = 'RT EV OPENSSL CARES EXECINFO DL KVM SOCKET NSL KSTAT UTIL OPROFILE'
 node.add_objects = 'eio http_parser'
 if product_type_is_lib:
 node.install_path = '${LIBDIR}'
 else:
 node.install_path = '${PREFIX}/bin'
 node.chmod = 0755
 node.source = """
 src/node.cc
 src/node_buffer.cc
 src/node_javascript.cc
 src/node_extensions.cc
 src/node_http_parser.cc
 src/node_net.cc
 src/node_io_watcher.cc
 src/node_constants.cc
 src/node_cares.cc
 src/node_events.cc
 src/node_file.cc
 src/node_signal_watcher.cc
 src/node_stat_watcher.cc
 src/node_timer.cc
 src/node_script.cc
 src/node_os.cc
 src/node_dtrace.cc
 src/node_string.cc
 """

 if sys.platform.startswith("win32"):
 node.source += " src/node_stdio_win32.cc "
 node.source += " src/node_child_process_win32.cc "
 else:
 node.source += " src/node_stdio.cc "
 node.source += " src/node_child_process.cc "

 node.source += bld.env["PLATFORM_FILE"]
 if not product_type_is_lib:
 node.source = 'src/node_main.cc '+node.source

 if bld.env["USE_OPENSSL"]: node.source += " src/node_crypto.cc "

 node.includes = """
 src/
 deps/libeio
 deps/http_parser
 """

 if not bld.env["USE_SHARED_V8"]: node.includes += ' deps/v8/include '

 if not bld.env["USE_SHARED_LIBEV"]:
 node.add_objects += ' ev '
 node.includes += ' deps/libev '

 if not bld.env["USE_SHARED_CARES"]:
 node.add_objects += ' cares '
 node.includes += ' deps/c-ares deps/c-ares/' + bld.env['DEST_OS'] + '-' + bld.env['DEST_CPU']

 if sys.platform.startswith('cygwin'):
 bld.env.append_value('LINKFLAGS', '-Wl,--export-all-symbols')
 bld.env.append_value('LINKFLAGS', '-Wl,--out-implib,default/libnode.dll.a')
 bld.env.append_value('LINKFLAGS', '-Wl,--output-def,default/libnode.def')
 bld.install_files('${LIBDIR}', "build/default/libnode.*")

 def subflags(program):
 x = { 'CCFLAGS' : " ".join(program.env["CCFLAGS"]).replace('"', '\\"')
 , 'CPPFLAGS' : " ".join(program.env["CPPFLAGS"]).replace('"', '\\"')
 , 'LIBFLAGS' : " ".join(program.env["LIBFLAGS"]).replace('"', '\\"')
 , 'PREFIX' : safe_path(program.env["PREFIX"])
 , 'VERSION' : '0.4.10' # FIXME should not be hard-coded, see NODE_VERSION_STRING in src/node_version.
 }
 return x

 # process file.pc.in -> file.pc

 node_conf = bld.new_task_gen('subst', before="cxx")
 node_conf.source = 'src/node_config.h.in'
 node_conf.target = 'src/node_config.h'
 node_conf.dict = subflags(node)
 node_conf.install_path = '${PREFIX}/include/node'

 if bld.env["USE_DEBUG"]:
 node_g = node.clone("debug")
 node_g.target = "node_g"
 node_g.uselib += ' V8_G'

 node_conf_g = node_conf.clone("debug")
 node_conf_g.dict = subflags(node_g)
 node_conf_g.install_path = None

 # After creating the debug clone, append the V8 dep
 node.uselib += ' V8'

 bld.install_files('${PREFIX}/include/node/', """
 config.h
 src/node.h
 src/node_object_wrap.h
 src/node_buffer.h
 src/node_events.h
 src/node_version.h
 """)

 # Only install the man page if it exists.
 # Do 'make doc install' to build and install it.
 if os.path.exists('doc/node.1'):
 bld.install_files('${PREFIX}/share/man/man1/', 'doc/node.1')

 bld.install_files('${PREFIX}/bin/', 'tools/node-waf', chmod=0755)
 bld.install_files('${LIBDIR}/node/wafadmin', 'tools/wafadmin/*.py')
 bld.install_files('${LIBDIR}/node/wafadmin/Tools', 'tools/wafadmin/Tools/*.py')

 # create a pkg-config(1) file
 node_conf = bld.new_task_gen('subst', before="cxx")
 node_conf.source = 'tools/nodejs.pc.in'
 node_conf.target = 'tools/nodejs.pc'
 node_conf.dict = subflags(node)

 bld.install_files('${LIBDIR}/pkgconfig', 'tools/nodejs.pc')

def shutdown():
 Options.options.debug
 # HACK to get binding.node out of build directory.
 # better way to do this?
 if Options.commands['configure']:
 if not Options.options.use_openssl:
 print "WARNING WARNING WARNING"
 print "OpenSSL not found. Will compile Node without crypto support!"

 if not Options.options.platform_file:
 print "WARNING: Platform not fully supported. Using src/platform_none.cc"

 elif not Options.commands['clean']:
 if sys.platform.startswith("win32"):
 if os.path.exists('build/default/node.exe'):
 os.system('cp build/default/node.exe .')
 if os.path.exists('build/debug/node_g.exe'):
 os.system('cp build/debug/node_g.exe .')
 else:
 if os.path.exists('build/default/node') and not os.path.exists('node'):
 os.symlink('build/default/node', 'node')
 if os.path.exists('build/debug/node_g') and not os.path.exists('node_g'):
 os.symlink('build/debug/node_g', 'node_g')
 else:
 if sys.platform.startswith("win32"):
 if os.path.exists('node.exe'): os.unlink('node.exe')
 if os.path.exists('node_g.exe'): os.unlink('node_g.exe')
 else:
 if os.path.exists('node'): os.unlink('node')
 if os.path.exists('node_g'): os.unlink('node_g')