import sys, os, re, platform
import SCons.SConf

Import("env", "conf_env")

root = Dir("../..").abspath

# Override SConscript to handle tests
oldSConscript = SConscript
def SConscript(*arguments, **keywords) :
	if not keywords.get("test_only", False) or env["TEST"] :
		return apply(oldSConscript, arguments, keywords)
env.SConscript = SConscript

################################################################################
# Extend the default build environment (not affecting the configure env)
#
# Keeping both environments separated mostly because of SCons Issue 2391,
# although it doesn't hurt to separate them (e.g. not have pretty printed
# strings in config.log)
################################################################################

#if env["PLATFORM"] == "win32" :
#	env["MSVC_BATCH"] = 1

# Pretty output
def colorize(command, target, color) :
	colors = { "red": "31", "green": "32", "yellow": "33", "blue": "34" }
	prefix = ""
	suffix = ""
	if sys.stdout.isatty() and env["PLATFORM"] != "win32":
		prefix = "\033[0;" + colors[color] + ";140m"
		suffix = "\033[0m"
	return "  " + prefix + command + suffix + " " + target

if int(ARGUMENTS.get("V", 0)) == 0 and not ARGUMENTS.get("dump_trace", False) :
	env["CCCOMSTR"] = colorize("CC", "$TARGET", "green")
	env["SHCCCOMSTR"] = colorize("CC", "$TARGET", "green")
	env["CXXCOMSTR"] = colorize("CXX", "$TARGET", "green")
	env["SHCXXCOMSTR"] = colorize("CXX", "$TARGET", "green")
	env["LINKCOMSTR"] = colorize("LINK", "$TARGET", "red")
	env["SHLINKCOMSTR"] = colorize("LINK", "$TARGET", "red")
	env["ARCOMSTR"] = colorize("AR", "$TARGET", "red")
	env["RANLIBCOMSTR"] = colorize("RANLIB", "$TARGET", "red")
	env["PCHCOMSTR"] = colorize("PCH", "$TARGET", "blue")
	env["QT4_RCCCOMSTR"] = colorize("RCC", "$TARGET", "blue")
	env["QT4_UICCOMSTR"] = colorize("UIC", "$TARGET", "blue")
	env["QT4_MOCFROMHCOMSTR"] = colorize("MOC", "$TARGET", "blue")
	env["QT4_MOCFROMCXXCOMSTR"] = colorize("MOC", "$TARGET", "blue")
	env["QT4_LRELEASECOMSTR"] = colorize("LRELEASE", "$TARGET", "blue")
	env["QT4_LUPDATECOMSTR"] = colorize("LUPDATE", "$TARGET", "blue")
	env["GENCOMSTR"] = colorize("GEN", "$TARGET", "blue")
	env["RCCOMSTR"] = colorize("RC", "$TARGET", "blue")
	env["BUNDLECOMSTR"] = colorize("BUNDLE", "$TARGET", "blue")
	env["NIBCOMSTR"] = colorize("NIB", "$TARGET", "blue")
	env["NSISCOMSTR"] = colorize("NSIS", "$TARGET", "blue")
	env["INSTALLSTR"] = colorize("INSTALL", "$TARGET", "blue")
	env["TESTCOMSTR"] = colorize("TEST", "$SOURCE", "yellow")
	env["FOCOMSTR"] = colorize("FO", "$TARGET", "blue")
	env["XSLTCOMSTR"] = colorize("XSLT", "$TARGET", "blue")
	env["XMLLINTCOMSTR"] = colorize("XMLLINT", "$SOURCE", "blue")
	env["DOXYCOMSTR"] = colorize("DOXY", "$SOURCE", "blue")
	#Progress(colorize("DEP", "$TARGET", "red")

def checkObjCHeader(context, header) :
	context.Message("Checking for Objective-C header " + header + " ... ")
	ret = context.TryCompile("#include <Cocoa/Cocoa.h>\n#include <" + header + ">", ".m")
	context.Result(ret)
	return ret

################################################################################
# Platform configuration
################################################################################

if ARGUMENTS.get("force-configure", 0) :
	SCons.SConf.SetCacheMode("force")

def CheckPKG(context, name):
	context.Message( 'Checking for package %s... ' % name )
	ret = context.TryAction('pkg-config --exists \'%s\'' % name)[0]
	context.Result( ret )
	return ret

def CheckVersion(context, library, version, define, header, value) :
	context.Message("Checking " + library + " version (>= " + version + ") ...")
	version = GetVersion(context, define, header)
	ok = version >= value
	context.Result(ok)
	return ok

def GetVersion(context, define, header, extension = ".c") :
	ret = context.TryRun("""
#include <%(header)s>
#include <stdio.h>

int main(int argc, char* argv[]) {
	printf("%%d\\n", %(define)s);
	return 0;
}
""" % { "header" : header, "define": define }, extension)
	if ret[0] :
		return int(ret[1])
	else :
		return -1


conf = Configure(conf_env)

if not conf.CheckCXX() or not conf.CheckCC() :
	print "Error: You need a working compiler"
	Exit(1)

env["HAVE_ZLIB"] = True
zlib_flags = {}
zlib_okay = False
if env.get("zlib_libdir", None) :
	zlib_flags["LIBPATH"] = [env["zlib_libdir"]]
	zlib_okay = True
if env.get("zlib_includedir", None) :
	zlib_flags["CPPPATH"] = [env["zlib_includedir"]]
	zlib_okay = True
if env.get("zlib_libfile", None) :
	zlib_flags["LIBS"] = [File(env["zlib_libfile"])]
	zlib_okay = True
elif zlib_okay :
	zlib_flags["LIBS"] = ["z"]
if (not zlib_okay) and conf.CheckLib("z") :
	zlib_flags["LIBS"] = ["z"]
	zlib_okay = True
if zlib_okay :
	env["ZLIB_FLAGS"] = zlib_flags
elif not env.get("zlib_bundled_enable", True) :
	print "Error: Zlib not found and zlib_bundled_enable is false"
	Exit(1)
else :
	env["ZLIB_BUNDLED"] = True

if conf.CheckLib("resolv") :
	env["PLATFORM_FLAGS"]["LIBS"] = env["PLATFORM_FLAGS"].get("LIBS", []) + ["resolv"]

if env["PLATFORM"] != "win32" :
	if conf.CheckLib("pthread") :
		env["PLATFORM_FLAGS"]["LIBS"] = env["PLATFORM_FLAGS"].get("LIBS", []) + ["pthread"]

if conf.CheckLib("dl") :
	env["PLATFORM_FLAGS"]["LIBS"] = env["PLATFORM_FLAGS"].get("LIBS", []) + ["dl"]

if conf.CheckLib("m") :
	env["PLATFORM_FLAGS"]["LIBS"] = env["PLATFORM_FLAGS"].get("LIBS", []) + ["m"]

if conf.CheckLib("c") :
	env["PLATFORM_FLAGS"]["LIBS"] = env["PLATFORM_FLAGS"].get("LIBS", []) + ["c"]

# Even if you find stdc++ on HP-UX, it is the wrong one for aCC
if env["PLATFORM"] != "hpux" :
	if conf.CheckLib("stdc++", language='CXX') :
		env["PLATFORM_FLAGS"]["LIBS"] = env["PLATFORM_FLAGS"].get("LIBS", []) + ["stdc++"]
conf.Finish()

# Boost
boost_conf_env = conf_env.Clone()
boost_flags = {}
if env.get("boost_libdir", None) :
	boost_flags["LIBPATH"] = [env["boost_libdir"]]
if env.get("boost_includedir", None) :
	if env["PLATFORM"] == "win32" or env["PLATFORM"] == "hpux" or env["PLATFORM"] == "sunos" :
		boost_flags["CPPPATH"] = [env["boost_includedir"]]
	else :
		# Using isystem to avoid getting warnings from a system boost
		# Unfortunately, this also disables dependency tracking
		boost_flags["CPPFLAGS"] = [("-isystem", env["boost_includedir"])]
boost_conf_env.MergeFlags(boost_flags)
conf = Configure(boost_conf_env)
boostLibs = [("signals", None), ("system", "system/system_error.hpp"), ("thread", None), ("regex", None), ("program_options", None), ("filesystem", None), ("serialization", "archive/text_oarchive.hpp"), ("date_time", "date_time/date.hpp")]
allLibsPresent = True
libNames = []
for (lib, header) in boostLibs :
	if header :
		header = "boost/" + header
	else :
		header = "boost/" + lib + ".hpp"
	if not conf.CheckCXXHeader(header) :
		allLibsPresent = False
		break
	if env["PLATFORM"] != "win32" :
		libName = "boost_" + lib
		if not conf.CheckLib(libName, language='CXX') :
			libName += "-mt"
			if not conf.CheckLib(libName, language='CXX') :
				allLibsPresent = False
				break
		libNames.append(libName)
if allLibsPresent :
	env["BOOST_FLAGS"] = boost_flags
	if env["PLATFORM"] != "win32" :
		env["BOOST_FLAGS"].update({"LIBS": libNames})
	if not conf.CheckCXXHeader("boost/uuid/uuid.hpp") :
		# FIXME: Remove this workaround when UUID is available in most distros
		env["BOOST_BUNDLED_UUID_ONLY"] = True
		env["BOOST_FLAGS"]["CPPDEFINES"] = ["BOOST_SIGNALS_NO_DEPRECATION_WARNING"]
elif not env.get("boost_bundled_enable", True) :
	print "Error: Boost not found and boost_bundled_enable is false"
	Exit(1)
else :
	env["BOOST_BUNDLED"] = True
conf.Finish()


# Xss
env["HAVE_XSS"] = 0
if env["PLATFORM"] != "win32" and env["PLATFORM"] != "darwin" :
	xss_flags = {
			"LIBPATH": ["/usr/X11R6/lib"],
			"LIBS": ["Xss"]
		}
	xss_env = conf_env.Clone()
	xss_env.MergeFlags(xss_flags)
	conf = Configure(xss_env)
	if conf.CheckFunc("XScreenSaverQueryExtension") :
		env["HAVE_XSS"] = 1
		env["XSS_FLAGS"] = xss_flags
	conf.Finish()

# GConf
env["HAVE_GCONF"] = 0
if env.get("try_gconf", True) and env["PLATFORM"] != "win32" and env["PLATFORM"] != "darwin" :
	gconf_env = conf_env.Clone()
	conf = Configure(gconf_env, custom_tests = {"CheckPKG": CheckPKG})
	if conf.CheckPKG("gconf-2.0") :
		gconf_bare_env = Environment()
		gconf_bare_env.ParseConfig('pkg-config --cflags gconf-2.0 gobject-2.0 --libs gconf-2.0 gobject-2.0')
		gconf_flags = {
				"LIBS": gconf_bare_env["LIBS"],
				"CCFLAGS": gconf_bare_env["CCFLAGS"],
				"CPPPATH": gconf_bare_env["CPPPATH"],
				"CPPDEFINES": gconf_bare_env.get("CPPDEFINES", []),
			}
		gconf_env.MergeFlags(gconf_flags)
		if conf.CheckCHeader("gconf/gconf-client.h") and conf.CheckLib("gconf-2") :
			env["HAVE_GCONF"] = 1
			env["GCONF_FLAGS"] = {
				"LIBS": gconf_env["LIBS"],
				"CCFLAGS": gconf_env["CCFLAGS"],
				"CPPPATH": gconf_env["CPPPATH"],
				"CPPDEFINES": gconf_env.get("CPPDEFINES", []),
			}
	conf.Finish()

# Sparkle
env["HAVE_SPARKLE"] = 0
if env["PLATFORM"] == "darwin" :
	sparkle_flags = {
			"FRAMEWORKPATH": ["/Library/Frameworks"],
			"FRAMEWORKS": ["Sparkle"]
		}
	sparkle_env = conf_env.Clone()
	sparkle_env.MergeFlags(sparkle_flags)
	conf = Configure(sparkle_env, custom_tests = { "CheckObjCHeader" : checkObjCHeader })
	if conf.CheckObjCHeader("Sparkle/Sparkle.h") :
		env["HAVE_SPARKLE"] = 1
		env["SPARKLE_FLAGS"] = sparkle_flags
		env["SPARKLE_FRAMEWORK"] = "/Library/Frameworks/Sparkle.framework"
	conf.Finish()

# Growl
env["HAVE_GROWL"] = 0
if env["PLATFORM"] == "darwin" :
	growl_flags = {
			"FRAMEWORKPATH": ["/Library/Frameworks"],
			"FRAMEWORKS": ["Growl"]
		}
	growl_env = conf_env.Clone()
	growl_env.MergeFlags(growl_flags)
	conf = Configure(growl_env, custom_tests = { "CheckObjCHeader" : checkObjCHeader })
	if conf.CheckObjCHeader("Growl/Growl.h") :
		env["HAVE_GROWL"] = 1
		env["GROWL_FLAGS"] = growl_flags
		env["GROWL_FRAMEWORK"] = "/Library/Frameworks/Growl.framework"
	conf.Finish()

# Snarl
if env["PLATFORM"] == "win32" :
	env["HAVE_SNARL"] = True

# LibXML
conf = Configure(conf_env, custom_tests = {"CheckVersion": CheckVersion})
if env.get("try_libxml", True) and conf.CheckCHeader("libxml/parser.h") and conf.CheckLib("xml2") :
#and conf.CheckVersion("LibXML", "2.6.23", "LIBXML_VERSION", "libxml/xmlversion.h", 20623) :
	env["HAVE_LIBXML"] = 1
	env["LIBXML_FLAGS"] = { "LIBS": ["xml2"] }
conf.Finish()

if env.get("try_libxml", True) and not env.get("HAVE_LIBXML", 0) :
	libxml_env = conf_env.Clone()
	libxml_env.Append(CPPPATH = ["/usr/include/libxml2"])
	conf = Configure(libxml_env, custom_tests = {"CheckVersion": CheckVersion})
	if conf.CheckCHeader("libxml/parser.h") and conf.CheckLib("xml2") :
#	and conf.CheckVersion("LibXML", "2.6.23", "LIBXML_VERSION", "libxml/xmlversion.h", 20623):
		env["HAVE_LIBXML"] = 1
		libxml_env.Append()
		if os.path.basename(env["CC"]) in ("clang", "gcc"):
			env["LIBXML_FLAGS"] = { "CXXFLAGS": ["-isystem/usr/include/libxml2"], "LIBS": ["xml2"] }
		else:
			env["LIBXML_FLAGS"] = { "CPPPATH": ["/usr/include/libxml2"], "LIBS": ["xml2"] }
	conf.Finish()

# Expat
if env.get("try_expat", True) and not env.get("HAVE_LIBXML",0) :
	expat_conf_env = conf_env.Clone()
	expat_flags = {}
	if env.get("expat_libdir", None) :
		expat_flags["LIBPATH"] = [env["expat_libdir"]]
	if env.get("expat_includedir", None) :
		expat_flags["CPPPATH"] = [env["expat_includedir"]]
	expat_conf_env.MergeFlags(expat_flags)
	conf = Configure(expat_conf_env)
	if conf.CheckCHeader("expat.h") and conf.CheckLib(env["expat_libname"]) :
		env["HAVE_EXPAT"] = 1
		env["EXPAT_FLAGS"] = { "LIBS": [env["expat_libname"]] }
		env["EXPAT_FLAGS"].update(expat_flags)
	conf.Finish()

# Bundled expat
bundledExpat = False
if not env.get("HAVE_EXPAT", 0) and not env.get("HAVE_LIBXML", 0) :
	print "Expat or LibXML not found. Using bundled Expat"
	SConscript("#/3rdParty/Expat/SConscript")
	env["HAVE_EXPAT"] = 1
	env["EXPAT_BUNDLED"] = True

################################################################################
# IDN library
################################################################################

env["NEED_IDN"] = env.get("need_idn", True)

# ICU
icu_env = conf_env.Clone()
use_icu = bool(env["icu"])
icu_prefix = ""
if isinstance(env["icu"], str) :
				icu_prefix = env["icu"]
icu_flags = {}
if icu_prefix :
	icu_flags = { "CPPPATH": [os.path.join(icu_prefix, "include")] }
	icu_flags["LIBPATH"] = [os.path.join(icu_prefix, "lib")]
	icu_env.MergeFlags(icu_flags)

icu_conf = Configure(icu_env)
if use_icu and icu_conf.CheckCHeader("unicode/usprep.h") :
	env["HAVE_ICU"] = 1
	env["ICU_FLAGS"] = icu_flags
	env["ICU_FLAGS"]["LIBS"] = ["icuuc"]
icu_conf.Finish()

# LibIDN
libidn_conf_env = conf_env.Clone()
libidn_flags = {}
if env.get("libidn_libdir", None) :
	libidn_flags["LIBPATH"] = [env["libidn_libdir"]]
if env.get("libidn_includedir", None) :
	libidn_flags["CPPPATH"] = [env["libidn_includedir"]]
libidn_conf_env.MergeFlags(libidn_flags)
conf = Configure(libidn_conf_env)
if env.get("try_libidn", True) and not env.get("HAVE_ICU") and conf.CheckCHeader("idna.h") and conf.CheckLib(env["libidn_libname"]) :
	env["HAVE_LIBIDN"] = 1
	env["LIBIDN_FLAGS"] = { "LIBS": [env["libidn_libname"]] }
	env["LIBIDN_FLAGS"].update(libidn_flags)
conf.Finish()

# Fallback to bundled LibIDN
if not env.get("HAVE_ICU", False) and not env.get("HAVE_LIBIDN", False) :
	if env.get("libidn_bundled_enable", True)  :
		env["HAVE_LIBIDN"] = 1
		env["LIBIDN_BUNDLED"] = 1
	elif env.get("need_idn", True):
		print "Error: ICU and LIBIDN not found, and libidn_bundled_enable is false"
		Exit(1)
	else:
		print "Proceeding without an IDN library because need_idn was false. This will break all internal binaries"

# Unbound
if env["unbound"] :
	env["LDNS_BUNDLED"] = 1
	env["UNBOUND_BUNDLED"] = 1
else :
	env["LDNS_FLAGS"] = {}
	env["UNBOUND_FLAGS"] = {}

# LibMiniUPnPc
if env["experimental_ft"] :
	libminiupnpc_flags = {"CPPPATH": ["/usr/include/miniupnpc/"]}
	libminiupnpc_conf_env = conf_env.Clone()
	if env.get("libminiupnpc_libdir", None) :
		libminiupnpc_flags["LIBPATH"] = [env["libminiupnpc_libdir"]]
	if env.get("libminiupnpc_includedir", None) :
		libminiupnpc_flags["CPPPATH"] = [env["libminiupnpc_includedir"]]
	libminiupnpc_conf_env.MergeFlags(libminiupnpc_flags)
	conf = Configure(libminiupnpc_conf_env)
	if conf.CheckCHeader("miniupnpc.h") and conf.CheckLib(env["libminiupnpc_libname"]) and False :
		# ^ False because APIs aren't stable
		env["HAVE_LIBMINIUPNPC"] = 1
		env["LIBMINIUPNPC_FLAGS"] = { "LIBS": ["miniupnpc"] }
		env["LIBMINIUPNPC_FLAGS"].update(libminiupnpc_flags)
	else :
		env["LIBMINIUPNPC_BUNDLED"] = 1
	conf.Finish()
else :
	env["LIBMINIUPNPC_FLAGS"] = {}

# LibNATPMP
if env["experimental_ft"] :
	libnatpmp_flags = {}
	libnatpmp_conf_env = conf_env.Clone()
	if env.get("libnatpmp_libdir", None) :
		libnatpmp_flags["LIBPATH"] = [env["libnatpmp_libdir"]]
	if env.get("libnatpmp_includedir", None) :
		libnatpmp_flags["CPPPATH"] = [env["libnatpmp_includedir"]]
	libnatpmp_conf_env.MergeFlags(libnatpmp_flags)
	conf = Configure(libnatpmp_conf_env)
	if conf.CheckCHeader("natpmp.h") and conf.CheckLib(env["libnatpmp_libname"]) and False:
		# ^ False because APIs aren't stable
		env["HAVE_LIBNATPMP"] = 1
		env["LIBNATPMP_FLAGS"] = { "LIBS": ["natpmp"] }
		env["LIBNATPMP_FLAGS"].update(libnatpmp_flags)
	else :
		env["LIBNATPMP_BUNDLED"] = 1
	conf.Finish()
else :
	env["LIBNATPMP_FLAGS"] = {}

# SQLite
if env["experimental"] :
	sqlite_conf_env = conf_env.Clone()
	sqlite_flags = {}
	if env.get("sqlite_libdir", None) :
		sqlite_flags["LIBPATH"] = [env["sqlite_libdir"]]
	if env.get("sqlite_includedir", None) :
		sqlite_flags["CPPPATH"] = [env["sqlite_includedir"]]
	sqlite_conf_env.MergeFlags(sqlite_flags)
	conf = Configure(sqlite_conf_env)
	if conf.CheckCHeader("sqlite3.h") and conf.CheckLib(env["sqlite_libname"]) and not env.get("sqlite_force_bundled", False):
		env["HAVE_SQLITE"] = 1
		env["SQLITE_FLAGS"] = { "LIBS": [env["sqlite_libname"]] }
		env["SQLITE_FLAGS"].update(sqlite_flags)
	else :
		env["SQLITE_BUNDLED"] = 1
	conf.Finish()
else :
	env["SQLITE_FLAGS"] = {}


# Lua
lua_conf_env = conf_env.Clone()
lua_flags = {}
if env.get("lua_libdir", None) :
	lua_flags["LIBPATH"] = [env["lua_libdir"]]
if env.get("lua_includedir", None) :
	lua_flags["CPPPATH"] = [env["lua_includedir"]]
lua_conf_env.MergeFlags(lua_flags)
conf = Configure(lua_conf_env)
if not env.get("lua_force_bundled", False) and conf.CheckLibWithHeader(env["lua_libname"], "lua.hpp", "cxx", autoadd = 0) :
	env["HAVE_LUA"] = 1
	env["LUA_FLAGS"] = { "LIBS": [env["lua_libname"]] }
	lua_version = GetVersion(conf, "LUA_VERSION_NUM", "lua.h")
	if lua_version > 0 :
		env["LUA_FLAGS"]["LUA_VERSION"] = str(lua_version // 100) + "." + str(lua_version % 100)
	else :
		print "Warning: Unable to determine Lua version. Not installing Lua libraries."
	env["LUA_FLAGS"].update(lua_flags)
else :
	env["LUA_BUNDLED"] = 1
conf.Finish()

# Readline
editline_conf_env = conf_env.Clone()
editline_flags = {}
if env.get("editline_libdir", None) :
	editline_flags["LIBPATH"] = [env["editline_libdir"]]
if env.get("editline_includedir", None) :
	editline_flags["CPPPATH"] = [env["editline_includedir"]]
editline_conf_env.MergeFlags(editline_flags)
conf = Configure(editline_conf_env)
if conf.CheckLibWithHeader(env["editline_libname"], ["stdio.h", "editline/readline.h"], "c") :
	env["HAVE_EDITLINE"] = 1
	env["EDITLINE_FLAGS"] = { "LIBS": [env["editline_libname"]] }
	env["EDITLINE_FLAGS"].update(editline_flags)
conf.Finish()

# Avahi
avahi_conf_env = conf_env.Clone()
avahi_flags = {}
if env.get("avahi_libdir", None) :
	avahi_flags["LIBPATH"] = [env["avahi_libdir"]]
if env.get("avahi_includedir", None) :
	avahi_flags["CPPPATH"] = [env["avahi_includedir"]]
avahi_conf_env.MergeFlags(avahi_flags)
conf = Configure(avahi_conf_env)
if env.get("try_avahi", True) and conf.CheckCHeader("avahi-client/client.h") and conf.CheckLib("avahi-client") and conf.CheckLib("avahi-common") :
	env["HAVE_AVAHI"] = True
	env["AVAHI_FLAGS"] = { "LIBS": ["avahi-client", "avahi-common"] }
	env["AVAHI_FLAGS"].update(avahi_flags)
conf.Finish()

# Qt
if env["qt"] :
	env["QTDIR"] = env["qt"]

# Check for OS X Secure Transport
if not env.get("openssl_force_bundled", False) and env["PLATFORM"] == "darwin" and env["target"] == "native"  :
	env["HAVE_SECURETRANSPORT"] = True
else :
	env["HAVE_SECURETRANSPORT"] = False

# OpenSSL
openssl_env = conf_env.Clone()
if env.get("openssl_force_bundled", False) or env["target"] in ("iphone-device", "iphone-simulator", "xcode", "android") :
	env["OPENSSL_BUNDLED"] = True
	env["HAVE_OPENSSL"] = True
elif not env["HAVE_SECURETRANSPORT"] :
	use_openssl = bool(env["openssl"])
	openssl_prefix = ""
	if isinstance(env["openssl"], str) :
		openssl_prefix = env["openssl"]
	openssl_flags = {}
	if openssl_prefix :
		openssl_include = env.get("openssl_include", None)
		openssl_libdir = env.get("openssl_libdir", None)
		if openssl_include:
			openssl_flags = {"CPPPATH":[openssl_include]}
		else:
			openssl_flags = { "CPPPATH": [os.path.join(openssl_prefix, "include")] }
		if openssl_libdir:
			openssl_flags["LIBPATH"] = [openssl_libdir]
			env["OPENSSL_DIR"] = openssl_prefix
		elif env["PLATFORM"] == "win32" :
			openssl_flags["LIBPATH"] = [os.path.join(openssl_prefix, "lib", "VC")]
			env["OPENSSL_DIR"] = openssl_prefix
		else :
			openssl_flags["LIBPATH"] = [os.path.join(openssl_prefix, "lib")]
		openssl_env.MergeFlags(openssl_flags)

	openssl_conf = Configure(openssl_env)
	if use_openssl and openssl_conf.CheckCHeader("openssl/ssl.h") :
		env["HAVE_OPENSSL"] = 1
		env["OPENSSL_FLAGS"] = openssl_flags
		openssl_libnames = env.get("openssl_libnames", None)
		if openssl_libnames:
			env["OPENSSL_FLAGS"]["LIBS"] = openssl_libnames.split(',')
		elif env["PLATFORM"] == "win32" :
			env["OPENSSL_FLAGS"]["LIBS"] = ["libeay32MD", "ssleay32MD"]
		else:
			env["OPENSSL_FLAGS"]["LIBS"] = ["ssl", "crypto"]
			if env["PLATFORM"] == "darwin" :
				if platform.mac_ver()[0].startswith("10.5") :
					env["OPENSSL_FLAGS"]["FRAMEWORKS"] = ["Security"]
	else :
		env["OPENSSL_FLAGS"] = {}
		if env["PLATFORM"] == "win32" :
			env["HAVE_SCHANNEL"] = True
			# If we're compiling for Windows and OpenSSL isn't being used, use Schannel
			env.Append(LIBS = ["secur32"])

	openssl_conf.Finish()

#Hunspell
hunspell_env = conf_env.Clone()
hunspell_prefix = isinstance(env.get("hunspell", False), str) and env["hunspell"] or ""
hunspell_flags = {}
if hunspell_prefix :
	hunspell_flags = {"CPPPATH":[os.path.join(hunspell_prefix, "include")], "LIBPATH":[os.path.join(hunspell_prefix, "lib")]}
hunspell_env.MergeFlags(hunspell_flags)

env["HAVE_HUNSPELL"] = 0;
hunspell_conf = Configure(hunspell_env)
if hunspell_conf.CheckCXXHeader("hunspell/hunspell.hxx") and hunspell_conf.CheckLib("hunspell") :
	env["HAVE_HUNSPELL"] = 1
	hunspell_flags["LIBS"] = ["hunspell"]
	env["HUNSPELL_FLAGS"] = hunspell_flags
hunspell_conf.Finish()

# Bonjour
if env["PLATFORM"] == "darwin" and env["target"] == "native" :
	env["HAVE_BONJOUR"] = 1
elif env.get("bonjour", False) :
	bonjour_env = conf_env.Clone()
	bonjour_conf = Configure(bonjour_env)
	bonjour_flags = {}
	if env.get("bonjour") != True :
		bonjour_prefix = env["bonjour"]
		bonjour_flags["CPPPATH"] = [os.path.join(bonjour_prefix, "include")]
		bonjour_flags["LIBPATH"] = [os.path.join(bonjour_prefix, "lib", "win32")]
	bonjour_env.MergeFlags(bonjour_flags)
	if bonjour_conf.CheckCHeader("dns_sd.h") and bonjour_conf.CheckLib("dnssd") :
		env["HAVE_BONJOUR"] = 1
		env["BONJOUR_FLAGS"] = bonjour_flags
		env["BONJOUR_FLAGS"]["LIBS"] = ["dnssd"]
	bonjour_conf.Finish()

# Cocoa & IOKit
if env["PLATFORM"] == "darwin" :
	cocoa_conf = Configure(conf_env)
	if cocoa_conf.CheckCHeader("IOKit/IOKitLib.h") :
		env["HAVE_IOKIT"] = True
	cocoa_conf.Finish()

# Qt
try :
	myenv = env.Clone()
	myenv.Tool("qt4", toolpath = ["#/BuildTools/SCons/Tools"])
	env["HAVE_QT"] = True
except :
	env["HAVE_QT"] = False

################################################################################
# DocBook setup
################################################################################

if env.get("docbook_xml") :
	env["DOCBOOK_XML_DIR"] = env["docbook_xml"]
if env.get("docbook_xsl") :
	env["DOCBOOK_XSL_DIR"] = env["docbook_xsl"]


################################################################################
# Set up git hooks
################################################################################

try:
	if env.Dir("#/.git").exists() :
		if not env.GetOption("clean") and env.get("install_git_hooks", True) :
			env.Install("#/.git/hooks", Glob("#/BuildTools/Git/Hooks/*"))
except TypeError:
	print "You seem to be using Swift in a Git submodule. Not installing hooks."


################################################################################
# Replace #pragma once with proper guards on platforms that require it
################################################################################

if ARGUMENTS.get("replace_pragma_once", False) :
	env.Tool("ReplacePragmaOnce", toolpath = ["#/BuildTools/SCons/Tools"])

	def relpath(path, start) :
		i = len(os.path.commonprefix([path, start]))
		return path[i+1:]

	for actual_root, dirs, files in os.walk(root) :
		if "3rdParty" in actual_root :
			continue
		for file in files :
			if not file.endswith(".h") :
				continue
			include = relpath(os.path.join(actual_root, file), root)
			env.ReplacePragmaOnce("#/include/" + include, "#/" + include)
	env.Append(CPPPATH = ["#/include"])
else :
	env.Append(CPPPATH = [root])


################################################################################
# Project files
################################################################################

if ARGUMENTS.get("dump_trace", False) :
	env.SetOption("no_exec", True)
	env["TEST"] = True
	env["BOOST_BUILD_BCP"] = True
	env.Decider(lambda x, y, z : True)
	SCons.Node.Python.Value.changed_since_last_build = (lambda x, y, z: True)

# Modules
modules = []
if os.path.isdir(Dir("#/3rdParty").abspath) :
	for dir in os.listdir(Dir("#/3rdParty").abspath) :
		full_dir = os.path.join(Dir("#/3rdParty").abspath, dir)
		if not os.path.isdir(full_dir) :
			continue
		sconscript = os.path.join(full_dir, "SConscript")
		if os.path.isfile(sconscript) :
			modules.append("3rdParty/" + dir)
for dir in os.listdir(Dir("#").abspath) :
	full_dir = os.path.join(Dir("#").abspath, dir)
	if not os.path.isdir(full_dir) :
		continue
	sconscript = os.path.join(full_dir, "SConscript")
	if os.path.isfile(sconscript) :
		modules.append(dir)

# QA comes last
modules.remove("QA")
modules.append("QA")

# Flags
env["PROJECTS"] = [m for m in modules if m not in ["Documentation", "QA", "SwifTools"] and not m.startswith("3rdParty")]
for stage in ["flags", "build"] :
	env["SCONS_STAGE"] = stage
	SConscript(dirs = map(lambda x : root + "/" + x, modules))

# SLOCCount
if ARGUMENTS.get("sloccount", False) :
	for project in env["PROJECTS"] :
		env.SLOCCount("#/" + project)


################################################################################
# Print summary
################################################################################

print
print "  Build Configuration"
print "  -------------------"

parsers = []
if env.get("HAVE_LIBXML", 0):
	parsers.append("LibXML")
if env.get("HAVE_EXPAT", 0):
	parsers.append("Expat")
	if env.get("EXPAT_BUNDLED", False) :
		parsers.append("(Bundled)")
print "  Projects: " + ' '.join(env["PROJECTS"])
print ""
print "  XML Parsers: " + ' '.join(parsers)

print "  TLS Support: " + (env.get("HAVE_OPENSSL",0) and "OpenSSL" or env.get("HAVE_SECURETRANSPORT",0) and "Secure Transport" or env.get("HAVE_SCHANNEL", 0) and "Schannel" or "Disabled")
print "  DNSSD Support: " + (env.get("HAVE_BONJOUR") and "Bonjour" or (env.get("HAVE_AVAHI") and "Avahi" or "Disabled"))
print