import sys, os, re, platform
sys.path.append(Dir("BuildTools/SCons").abspath)
import SCons.SConf

################################################################################
# Build variables
################################################################################

vars = Variables(os.path.join(Dir("#").abspath, "config.py"))
vars.Add('cc', "C compiler")
vars.Add('cxx', "C++ compiler")
vars.Add('ccflags', "Extra C(++) compiler flags")
vars.Add('link', "Linker")
vars.Add('linkflags', "Extra linker flags")
vars.Add(BoolVariable("ccache", "Use CCache", "no"))
vars.Add(BoolVariable("distcc", "Use DistCC", "no"))
vars.Add('distcc_hosts', "DistCC hosts (overrides DISTCC_HOSTS)")
vars.Add(EnumVariable("test", "Compile and run tests", "none", ["none", "all", "unit", "system"]))
vars.Add(BoolVariable("optimize", "Compile with optimizations turned on", "no"))
vars.Add(BoolVariable("debug", "Compile with debug information", "yes"))
vars.Add(BoolVariable("allow_warnings", "Allow compilation warnings during compilation", "no"))
vars.Add(BoolVariable("max_jobs", "Build with maximum number of parallel jobs", "no"))
vars.Add(EnumVariable("target", "Choose a target platform for compilation", "native", ["native", "iphone-simulator", "iphone-device", "xcode"]))
vars.Add(BoolVariable("swift_mobile", "Build mobile Swift", "no"))
if os.name != "nt" :
	vars.Add(BoolVariable("coverage", "Compile with coverage information", "no"))
if os.name == "posix" :
	vars.Add(BoolVariable("valgrind", "Run tests with valgrind", "no"))
if os.name == "mac" or (os.name == "posix" and os.uname()[0] == "Darwin"):
	vars.Add(BoolVariable("universal", "Create universal binaries", "no"))
	vars.Add(BoolVariable("mac105", "Link against the 10.5 frameworks", "no"))
if os.name == "nt" :
	vars.Add(PathVariable("vcredist", "MSVC redistributable dir", "", PathVariable.PathAccept))
if os.name == "nt" :
	vars.Add(PackageVariable("bonjour", "Bonjour SDK location", "yes"))
vars.Add(PackageVariable("openssl", "OpenSSL location", "yes"))
vars.Add(PathVariable("boost_includedir", "Boost headers location", None, PathVariable.PathAccept))
vars.Add(PathVariable("boost_libdir", "Boost library location", None, PathVariable.PathAccept))
vars.Add(PathVariable("expat_includedir", "Expat headers location", None, PathVariable.PathAccept))
vars.Add(PathVariable("expat_libdir", "Expat library location", None, PathVariable.PathAccept))
vars.Add("expat_libname", "Expat library name", "libexpat" if os.name == "nt" else "expat")
vars.Add(PathVariable("libidn_includedir", "LibIDN headers location", None, PathVariable.PathAccept))
vars.Add(PathVariable("libidn_libdir", "LibIDN library location", None, PathVariable.PathAccept))
vars.Add("libidn_libname", "LibIDN library name", "libidn" if os.name == "nt" else "idn")
vars.Add(PathVariable("avahi_includedir", "Avahi headers location", None, PathVariable.PathAccept))
vars.Add(PathVariable("avahi_libdir", "Avahi library location", None, PathVariable.PathAccept))
vars.Add(PathVariable("qt", "Qt location", "", PathVariable.PathAccept))
vars.Add(PathVariable("docbook_xml", "DocBook XML", None, PathVariable.PathAccept))
vars.Add(PathVariable("docbook_xsl", "DocBook XSL", None, PathVariable.PathAccept))

################################################################################
# Set up default build & configure environment
################################################################################

env = Environment(CPPPATH = ["#"], ENV = {
		'PATH' : os.environ['PATH'], 
		'LD_LIBRARY_PATH' : os.environ.get("LD_LIBRARY_PATH", ""),
	}, variables = vars)

Help(vars.GenerateHelpText(env))

# Default environment variables
env["PLATFORM_FLAGS"] = {}

# Default custom tools
env.Tool("Test", toolpath = ["#/BuildTools/SCons/Tools"])
env.Tool("WriteVal", toolpath = ["#/BuildTools/SCons/Tools"])
env.Tool("BuildVersion", toolpath = ["#/BuildTools/SCons/Tools"])
env.Tool("Flags", toolpath = ["#/BuildTools/SCons/Tools"])
if env["PLATFORM"] == "darwin" :
	env.Tool("Nib", toolpath = ["#/BuildTools/SCons/Tools"])
	env.Tool("AppBundle", toolpath = ["#/BuildTools/SCons/Tools"])
if env["PLATFORM"] == "win32" :
	env.Tool("WindowsBundle", toolpath = ["#/BuildTools/SCons/Tools"])
	#So we don't need to escalate with UAC
	if "TMP" in os.environ.keys() :
		env['ENV']['TMP'] = os.environ['TMP'] 
env.Tool("SLOCCount", toolpath = ["#/BuildTools/SCons/Tools"])

# 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)
  
# Max out the number of jobs
if env["max_jobs"] :
	try :
		import multiprocessing
		SetOption("num_jobs", multiprocessing.cpu_count())
	except NotImplementedError :
		pass

# Default compiler flags
if env.get("distcc", False) :
	env["ENV"]["HOME"] = os.environ["HOME"]
	env["ENV"]["DISTCC_HOSTS"] = os.environ.get("DISTCC_HOSTS", "")
	if "distcc_hosts" in env :
		env["ENV"]["DISTCC_HOSTS"] = env["distcc_hosts"]
	env["CC"] = "distcc gcc"
	env["CXX"] = "distcc g++"
if env.get("ccache", False) :
	env["ENV"]["HOME"] = os.environ["HOME"]
	for var in os.environ :
		if var.startswith("CCACHE_") :
			env["ENV"][var] = os.environ[var]
	env["CC"] = "ccache gcc"
	env["CXX"] = "ccache g++"
if "cc" in env :
	env["CC"] = env["cc"]
if "cxx" in env :
	env["CXX"] = env["cxx"]
ccflags = env.get("ccflags", [])
if isinstance(ccflags, str) :
	# FIXME: Make the splitting more robust
	env["CCFLAGS"] = ccflags.split(" ")
else :
	env["CCFLAGS"] = ccflags
if "link" in env :
	env["SHLINK"] = env["link"]
	env["LINK"] = env["link"]
env["LINKFLAGS"] = env.get("linkflags", [])
# This isn't a real flag (yet) AFAIK. Be sure to append it to the CXXFLAGS
# where you need it
env["OBJCCFLAGS"] = []
if env["optimize"] :
	if env["PLATFORM"] == "win32" :
		env.Append(CCFLAGS = ["/O2", "/GL"])
		env.Append(LINKFLAGS = ["/INCREMENTAL:NO", "/LTCG"])
	else :
		env.Append(CCFLAGS = ["-O2"])

if env["debug"] :
	if env["PLATFORM"] == "win32" :
		env.Append(CCFLAGS = ["/Zi", "/MDd"])
		env.Append(LINKFLAGS = ["/DEBUG"])
	else :
		env.Append(CCFLAGS = ["-g"])
elif env["PLATFORM"] == "win32" :
	env.Append(CCFLAGS = ["/MD"])

if env.get("universal", 0) :
	assert(env["PLATFORM"] == "darwin")
	env.Append(CCFLAGS = [
			"-isysroot", "/Developer/SDKs/MacOSX10.4u.sdk", 
			"-arch", "i386", 
			"-arch", "ppc"])
	env.Append(LINKFLAGS = [
			"-mmacosx-version-min=10.4", 
			"-isysroot", "/Developer/SDKs/MacOSX10.4u.sdk", 
			"-arch", "i386", 
			"-arch", "ppc"])

if env.get("mac105", 0) :
	assert(env["PLATFORM"] == "darwin")
	env.Append(CCFLAGS = [
			"-isysroot", "/Developer/SDKs/MacOSX10.5.sdk", 
			"-arch", "i386"])
	env.Append(LINKFLAGS = [
			"-mmacosx-version-min=10.5", 
			"-isysroot", "/Developer/SDKs/MacOSX10.5.sdk", 
			"-arch", "i386"])
	env.Append(FRAMEWORKS = ["Security"])

# If we build shared libs on AMD64, we need -fPIC.
# This should have no performance impact om AMD64
if env["PLATFORM"] == "posix" and platform.machine() == "x86_64" :
	env.Append(CCFLAGS = ["-fPIC"])

# Warnings
if env["PLATFORM"] == "win32" :
	# TODO: Find the ideal set of warnings
	#env.Append(CCFLAGS = ["/Wall"])
	pass
else :
	env.Append(CXXFLAGS = ["-Wextra", "-Wall", "-Wnon-virtual-dtor", "-Wundef", "-Wold-style-cast", "-Wno-long-long", "-Woverloaded-virtual", "-Wfloat-equal", "-Wredundant-decls"])
	if not env.get("allow_warnings", False) :
		env.Append(CXXFLAGS = ["-Werror"])
	gccVersion = env["CCVERSION"].split(".")
	if gccVersion >= ["4", "5", "0"] :
		env.Append(CXXFLAGS = ["-Wlogical-op"])
	if "clang" in env["CC"] :
		env.Append(CXXFLAGS = ["-W#warnings", "-W-Wc++0x-compat", "-Wc++0x-compat", "-Waddress-of-temporary", "-Wambiguous-member-template", "-Warray-bounds", "-Watomic-properties", "-Wbind-to-temporary-copy", "-Wbuiltin-macro-redefined", "-Wc++-compat", "-Wc++0x-extensions", "-Wcomments", "-Wconditional-uninitialized", "-Wconstant-logical-operand", "-Wdeclaration-after-statement", "-Wdeprecated", "-Wdeprecated-implementations", "-Wdeprecated-writable-strings", "-Wduplicate-method-arg", "-Wempty-body", "-Wendif-labels", "-Wenum-compare", "-Wformat=2", "-Wfour-char-constants", "-Wgnu", "-Wincomplete-implementation", "-Winvalid-noreturn", "-Winvalid-offsetof", "-Winvalid-token-paste", "-Wlocal-type-template-args", "-Wmethod-signatures", "-Wmicrosoft", "-Wmissing-declarations", "-Wnon-pod-varargs", "-Wnonfragile-abi2", "-Wnull-dereference", "-Wout-of-line-declaration", "-Woverlength-strings", "-Wpacked", "-Wpointer-arith", "-Wpointer-sign", "-Wprotocol", "-Wreadonly-setter-attrs", "-Wselector", "-Wshift-overflow", "-Wshift-sign-overflow", "-Wstrict-selector-match", "-Wsuper-class-method-mismatch", "-Wtautological-compare", "-Wtypedef-redefinition", "-Wundeclared-selector", "-Wunknown-attributes", "-Wunknown-warning-option", "-Wunnamed-type-template-args", "-Wunused-exception-parameter", "-Wunused-member-function", "-Wused-but-marked-unused", "-Wvariadic-macros"])
# To enable: 
# "-Wheader-hygiene"
#	"-Wnon-gcc",
# "-Wweak-vtables",
# "-Wlarge-by-value-copy",

if env.get("coverage", 0) :
	assert(env["PLATFORM"] != "win32")
	env.Append(CCFLAGS = ["-fprofile-arcs", "-ftest-coverage"])
	env.Append(LINKFLAGS = ["-fprofile-arcs", "-ftest-coverage"])

if env["PLATFORM"] == "win32" :
	env.Append(LIBS = ["user32", "crypt32", "dnsapi", "ws2_32", "wsock32", "Advapi32"])
	env.Append(CCFLAGS = ["/EHsc", "/nologo"])
	# FIXME: We should find a decent solution for MSVS 10
	if int(env["MSVS_VERSION"].split(".")[0]) < 10 :
		env["LINKCOM"] = [env["LINKCOM"], 'mt.exe -nologo -manifest ${TARGET}.manifest -outputresource:$TARGET;1']
		env["SHLINKCOM"] = [env["SHLINKCOM"], 'mt.exe -nologo -manifest ${TARGET}.manifest -outputresource:$TARGET;2']

if env["PLATFORM"] == "darwin" and not env["target"] in ["iphone-device", "iphone-simulator", "xcode"] :
	env.Append(FRAMEWORKS = ["IOKit", "AppKit", "SystemConfiguration"])

# Testing
env["TEST_TYPE"] = env["test"]
if "check" in ARGUMENTS :
	env["TEST_TYPE"] = "unit"
env["checker_report"] = ARGUMENTS.get("checker_report", False)
env["TEST"] = (env["TEST_TYPE"] != "none") or env.GetOption("clean")
if env.get("valgrind", 0) :
	env["TEST_RUNNER"] = "valgrind --suppressions=QA/valgrind.supp -q --leak-check=full --track-origins=yes "
env["TEST_IGNORE_RESULT"] = "ignore_test_result" in ARGUMENTS
env["TEST_CREATE_LIBRARIES"] = "create_test_libraries" in ARGUMENTS

# Packaging
env["DIST"] = "dist" in ARGUMENTS or env.GetOption("clean")
for path in ["SWIFT_INSTALLDIR", "SWIFTEN_INSTALLDIR"] :
	if ARGUMENTS.get(path, "") :
		if os.path.isabs(ARGUMENTS[path]) :
			env[path] = Dir(ARGUMENTS[path]).abspath
		else :
			env[path] = Dir("#/" + ARGUMENTS[path]).abspath

################################################################################
# XCode / iPhone / ...
################################################################################

target = env["target"]
if target in ["iphone-device", "iphone-simulator", "xcode"] :
	# Extract/initialize all the information we need
	if target == "xcode" :
		# Get the information from the XCode environment
		env["XCODE_PLATFORM_DEVELOPER_BIN_DIR"] = os.environ["PLATFORM_DEVELOPER_BIN_DIR"]
		env["XCODE_SDKROOT"] = os.environ["SDKROOT"]
		env["XCODE_ARCH_FLAGS"] = sum([["-arch", arch] for arch in os.environ["ARCHS"].split(" ")], [])
	else :
		# Hard code values
		env["XCODE_PLATFORM_DEVELOPER_BIN_DIR"] = "/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin"
		if target == "iphone-device":
			env["XCODE_ARCH_FLAGS"] = ["-arch", "armv6"]
			sdkPart = "iPhoneOS"
		else :
			env["XCODE_ARCH_FLAGS"] = ["-arch", "i386"]
			sdkPart = "iPhoneSimulator"
		sdkVer = "4.0"
		env["XCODE_SDKROOT"] = "/Developer/Platforms/" + sdkPart + ".platform/Developer/SDKs/" + sdkPart + sdkVer + ".sdk"

	# Set the build flags
	env["CC"] = "$XCODE_PLATFORM_DEVELOPER_BIN_DIR/gcc"
	env["CXX"] = "$XCODE_PLATFORM_DEVELOPER_BIN_DIR/g++"
	env["OBJCCFLAGS"] = ["-fobjc-abi-version=2", "-fobjc-legacy-dispatch"]
	env["LD"] = env["CC"]
	env.Append(CCFLAGS = env["XCODE_ARCH_FLAGS"])
	env.Append(LINKFLAGS = env["XCODE_ARCH_FLAGS"])
	env.Append(CPPFLAGS = ["-isysroot", "$XCODE_SDKROOT"])
	env.Append(FRAMEWORKS = ["CoreFoundation", "Foundation", "UIKit", "CoreGraphics"])
	env.Append(LINKFLAGS = env["XCODE_ARCH_FLAGS"] + ["-isysroot", "$XCODE_SDKROOT", "-L\"$XCODE_SDKROOT/usr/lib\"", "-F\"$XCODE_SDKROOT/System/Library/Frameworks\"", "-F\"$XCODE_SDKROOT/System/Library/PrivateFrameworks\""])
	# Bit of a hack, because BOOST doesn't know the endianness for ARM
	env.Append(CPPDEFINES = ["_LITTLE_ENDIAN"]) 

conf_env = env.Clone()

Export("env")
Export("conf_env")


################################################################################
# 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:
	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["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

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
if conf.CheckLib("z") :
	env["ZLIB_FLAGS"] = {"LIBS": ["z"]}
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"]

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

conf.Finish()

# Boost
boost_conf_env = conf_env.Clone()
boost_flags = {}
boost_flags["CPPDEFINES"] = [("BOOST_FILESYSTEM_VERSION", "2")]
if env.get("boost_libdir", None) :
	boost_flags["LIBPATH"] = [env["boost_libdir"]]
if env.get("boost_includedir", None) :
	if env["PLATFORM"] == "win32" :
		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), ("thread", None), ("regex", None), ("program_options", None), ("filesystem", None), ("system", "system/system_error.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) :
			libName += "-mt"
			if not conf.CheckLib(libName) :
				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
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": ["X11", "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["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 --libs gconf-2.0')
		gconf_flags = {
				"LIBS": gconf_bare_env["LIBS"],
				"CCFLAGS": gconf_bare_env["CCFLAGS"],
				"CPPPATH": gconf_bare_env["CPPPATH"],
				"CPPDEFINES": gconf_bare_env["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["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)
if conf.CheckCHeader("libxml/parser.h") and conf.CheckLib("xml2") :
	env["HAVE_LIBXML"] = 1
	env["LIBXML_FLAGS"] = { "LIBS": ["xml2"] }
conf.Finish()

if not env.get("HAVE_LIBXML", 0) :
	libxml_env = conf_env.Clone()
	libxml_env.Append(CPPPATH = ["/usr/include/libxml2"])
	conf = Configure(libxml_env)
	if conf.CheckCHeader("libxml/parser.h") and conf.CheckLib("xml2") :
		env["HAVE_LIBXML"] = 1
		env["LIBXML_FLAGS"] = { "CPPPATH": ["/usr/include/libxml2"], "LIBS": ["xml2"] }
	conf.Finish()

# Expat
if 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

# 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 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)
else :
	env["LIBIDN_BUNDLED"] = 1
conf.Finish()

# Lua
env["LUA_BUNDLED"] = 1

# Readline
conf = Configure(conf_env)
if conf.CheckCHeader(["stdio.h", "readline/readline.h"]) and conf.CheckLib("readline") :
	env["HAVE_READLINE"] = True
	env["READLINE_FLAGS"] = { "LIBS": ["readline"] }
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 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"]

# OpenSSL
openssl_env = conf_env.Clone()
use_openssl = bool(env["openssl"])
openssl_prefix = env["openssl"] if isinstance(env["openssl"], str) else ""
openssl_flags = {}
if openssl_prefix :
	openssl_flags = { "CPPPATH": [os.path.join(openssl_prefix, "include")] }
	if 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
	if env["PLATFORM"] == "win32" : 
		env["OPENSSL_FLAGS"]["LIBS"] = ["libeay32MD", "ssleay32MD"]
	else:
		env["OPENSSL_FLAGS"]["LIBS"] = ["ssl", "crypto"]
elif target in ("iphone-device", "iphone-simulator", "xcode") :
	env["OPENSSL_BUNDLED"] = True
	env["HAVE_OPENSSL"] = True
else :
	env["OPENSSL_FLAGS"] = ""

openssl_conf.Finish()

# Bonjour
if env["PLATFORM"] == "darwin" :
	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
################################################################################

if env.Dir("#/.git").exists() :
	if not env.GetOption("clean") :
		env.Install("#/.git/hooks", Glob("#/BuildTools/Git/Hooks/*"))

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

# Build tools
env.SConscript(dirs = ["#/BuildTools/CLang"])

# Modules
modules = []
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)

# 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", "test"] :
	env["SCONS_STAGE"] = stage
	SConscript(dirs = map(lambda x : "#/" + 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: " + ("OpenSSL" if env.get("HAVE_OPENSSL",0) else "Disabled")
print "  DNSSD Support: " + ("Bonjour" if env.get("HAVE_BONJOUR") else ("Avahi" if env.get("HAVE_AVAHI") else "Disabled"))
print