import sys, os, re, platform, hashlib sys.path.append(Dir("#/BuildTools/SCons").abspath) ################################################################################ # 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/C++/ObjC compiler flags") vars.Add('cxxflags', "Extra C++ compiler flags") vars.Add('link', "Linker") vars.Add('linkflags', "Extra linker flags") vars.Add('ar', "Archiver (ar or lib)") if os.name == "nt": vars.Add('mt', "manifest tool") vars.Add(BoolVariable("ccache", "Use CCache", "no")) 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", "yes")) vars.Add(BoolVariable("assertions", "Compile with assertions", "yes")) 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", "android"])) vars.Add('android_toolchain', "Path to Android toolchain") vars.Add('android_sdk_bin', "Path to Android SDK's tools directory") vars.Add(BoolVariable("swift_mobile", "Build mobile Swift", "no")) vars.Add(BoolVariable("swiften_dll", "Build Swiften as dynamically linked library", "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")) vars.Add(BoolVariable("mac106", "Link against the 10.6 frameworks", "no")) if os.name == "nt" : vars.Add(PathVariable("vcredist", "MSVC redistributable dir", None, PathVariable.PathAccept)) if os.name == "nt" : vars.Add(PathVariable("wix_bindir", "Path to WiX binaries", "", PathVariable.PathAccept)) if os.name == "nt" : vars.Add(PackageVariable("bonjour", "Bonjour SDK location", "yes")) vars.Add(PackageVariable("openssl", "OpenSSL location", "yes")) vars.Add("openssl_libnames", "Comma-separated openssl library names to override defaults", None) vars.Add(BoolVariable("openssl_force_bundled", "Force use of the bundled OpenSSL", "no")) vars.Add("openssl_include", "Location of OpenSSL include files (if not under (openssl)/include)", None) vars.Add("openssl_libdir", "Location of OpenSSL library files (if not under (openssl)/lib)", None) vars.Add(PackageVariable("hunspell", "Hunspell location", False)) vars.Add(PathVariable("boost_includedir", "Boost headers location", None, PathVariable.PathAccept)) vars.Add(PathVariable("boost_libdir", "Boost library location", None, PathVariable.PathAccept)) vars.Add(BoolVariable("boost_bundled_enable", "Allow use of bundled Boost as last resort", "true")) vars.Add(PathVariable("zlib_includedir", "Zlib headers location", None, PathVariable.PathAccept)) vars.Add(PathVariable("zlib_libdir", "Zlib library location", None, PathVariable.PathAccept)) vars.Add(PathVariable("zlib_libfile", "Zlib library file (full path to file)", None, PathVariable.PathAccept)) vars.Add(BoolVariable("zlib_bundled_enable", "Allow use of bundled Zlib as last resort", "true")) vars.Add(BoolVariable("try_gconf", "Try configuring for GConf?", "true")) vars.Add(BoolVariable("try_libxml", "Try configuring for libXML?", "true")) vars.Add(BoolVariable("try_expat", "Try configuring for expat?", "true")) 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", os.name == "nt" and "libexpat" or "expat") vars.Add(PackageVariable("icu", "ICU library location", "no")) vars.Add(BoolVariable("libidn_bundled_enable", "Allow use of bundled LibIDN", "true")) vars.Add(BoolVariable("try_libidn", "Try configuring for LibIDN?", "true")) 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", os.name == "nt" and "libidn" or "idn") vars.Add(BoolVariable("need_idn", "Whether an IDN library is required. Without this, most internal binaries will fail", "true")) vars.Add(PathVariable("libminiupnpc_includedir", "LibMiniUPNPC headers location", None, PathVariable.PathAccept)) vars.Add(PathVariable("libminiupnpc_libdir", "LibMiniUPNPC library location", None, PathVariable.PathAccept)) vars.Add("libminiupnpc_libname", "LibMiniUPNPC library name", os.name == "nt" and "libminiupnpc" or "miniupnpc") vars.Add(PathVariable("libnatpmp_includedir", "LibNATPMP headers location", None, PathVariable.PathAccept)) vars.Add(PathVariable("libnatpmp_libdir", "LibNATPMP library location", None, PathVariable.PathAccept)) vars.Add("libnatpmp_libname", "LibNATPMP library name", os.name == "nt" and "libnatpmp" or "natpmp") vars.Add(PathVariable("sqlite_includedir", "SQLite headers location", None, PathVariable.PathAccept)) vars.Add(PathVariable("sqlite_libdir", "SQLite library location", None, PathVariable.PathAccept)) vars.Add("sqlite_libname", "SQLite library name", os.name == "nt" and "libsqlite3" or "sqlite3") vars.Add("sqlite_force_bundled", "Force use of the bundled SQLite", None) vars.Add(PathVariable("lua_includedir", "Lua headers location", None, PathVariable.PathAccept)) vars.Add(PathVariable("lua_libdir", "Lua library location", None, PathVariable.PathAccept)) vars.Add("lua_libname", "Lua library name", os.name == "nt" and "liblua" or "lua") vars.Add("lua_force_bundled", "Force use of the bundled Lua", None) vars.Add(PathVariable("editline_includedir", "Readline headers location", None, PathVariable.PathAccept)) vars.Add(PathVariable("editline_libdir", "Readline library location", None, PathVariable.PathAccept)) vars.Add("editline_libname", "Readline library name", os.name == "nt" and "libedit" or "edit") vars.Add(BoolVariable("try_avahi", "Try configuring for avahi?", "true")) 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(BoolVariable("qt5", "Compile in Qt5 mode", "no")) # TODO: auto-detect this vars.Add(PathVariable("docbook_xml", "DocBook XML", None, PathVariable.PathAccept)) vars.Add(PathVariable("docbook_xsl", "DocBook XSL", None, PathVariable.PathAccept)) vars.Add(BoolVariable("build_examples", "Build example programs", "yes")) vars.Add(BoolVariable("enable_variants", "Build in a separate dir under build/, depending on compile flags", "no")) vars.Add(BoolVariable("experimental_ft", "Build experimental file transfer", "yes")) vars.Add(BoolVariable("experimental", "Build experimental features", "no")) vars.Add(BoolVariable("set_iterator_debug_level", "Set _ITERATOR_DEBUG_LEVEL=0", "yes")) vars.Add(BoolVariable("unbound", "Build bundled ldns and unbound. Use them for DNS lookup.", "no")) vars.Add(BoolVariable("install_git_hooks", "Install git hooks", "true")) ################################################################################ # Set up default build & configure environment ################################################################################ env_ENV = { 'PATH' : os.environ['PATH'], 'LD_LIBRARY_PATH' : os.environ.get("LD_LIBRARY_PATH", ""), 'TERM' : os.environ.get("TERM", ""), } if "MSVC_VERSION" in ARGUMENTS : env = Environment(ENV = env_ENV, variables = vars, MSVC_VERSION = ARGUMENTS["MSVC_VERSION"], platform = ARGUMENTS.get("PLATFORM", None)) else : env = Environment(ENV = env_ENV, variables = vars, platform = ARGUMENTS.get("PLATFORM", None)) Help(vars.GenerateHelpText(env)) # Workaround for missing Visual Studio 2012 support in SCons # Requires scons to be run from a VS2012 console if env.get("MSVC_VERSION", "").startswith("11.0") : env["ENV"]["LIB"] = os.environ["LIB"] env["ENV"]["INCLUDE"] = os.environ["INCLUDE"] # Default environment variables env["PLATFORM_FLAGS"] = { "LIBPATH": [], "LIBS": [], "FRAMEWORKS": [], } # 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"]) # Max out the number of jobs if env["max_jobs"] : try : import multiprocessing SetOption("num_jobs", multiprocessing.cpu_count()) except NotImplementedError : pass except ImportError : pass # Set speed options env.Decider("MD5-timestamp") env.SetOption("max_drift", 1) env.SetOption("implicit_cache", True) # Set the default compiler to CLang on OS X, and set the necessary flags if env["PLATFORM"] == "darwin" and env["target"] == "native" : if "cc" not in env : env["CC"] = "clang" if platform.machine() == "x86_64" : env["CCFLAGS"] = ["-arch", "x86_64"] if "cxx" not in env : env["CXX"] = "clang++" # Compiling Qt5 in C++0x mode includes headers that we don't have if not env["qt5"] : env["CXXFLAGS"] = ["-std=c++11"] if "link" not in env : env["LINK"] = "clang" if platform.machine() == "x86_64" : env.Append(LINKFLAGS = ["-arch", "x86_64"]) # Check whether we are running inside scan-build, and override compiler if so if "CCC_ANALYZER_HTML" in os.environ : for key, value in os.environ.items() : if key.startswith("CCC_") or key.startswith("CLANG") : env["ENV"][key] = value env["CC"] = os.environ["CC"] env["CXX"] = os.environ["CXX"] # Override the compiler with custom variables set at config time if "cc" in env : env["CC"] = env["cc"] if "cxx" in env : env["CXX"] = env["cxx"] if "ar" in env : env["AR"] = env["ar"] if "link" in env : env["SHLINK"] = env["link"] env["LINK"] = env["link"] for flags_type in ["ccflags", "cxxflags", "linkflags"] : if flags_type in env : if isinstance(env[flags_type], str) : # FIXME: Make the splitting more robust env[flags_type.upper()] = env[flags_type].split(" ") else : env[flags_type.upper()] = env[flags_type] # 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"]) else : env.Append(CCFLAGS = ["-O2"]) if env["target"] == "xcode" and os.environ["CONFIGURATION"] == "Release" : env.Append(CCFLAGS = ["-Os"]) if env["debug"] : if env["PLATFORM"] == "win32" : env.Append(CCFLAGS = ["/Zi"]) env.Append(LINKFLAGS = ["/DEBUG"]) if env["set_iterator_debug_level"] : env.Append(CPPDEFINES = ["_ITERATOR_DEBUG_LEVEL=0"]) if env["optimize"] : env.Append(LINKFLAGS = ["/OPT:NOREF"]) env.Append(CCFLAGS = ["/MD"]) else : env.Append(CCFLAGS = ["/MDd"]) 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"]) # Link against other versions of the OS X SDKs. # FIXME: This method does not work anymore, we need to set deployment targets. 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"]) if env.get("mac106", 0) : assert(env["PLATFORM"] == "darwin") env.Append(CCFLAGS = [ "-isysroot", "/Developer/SDKs/MacOSX10.6.sdk", "-arch", "i386"]) env.Append(LINKFLAGS = [ "-mmacosx-version-min=10.6", "-isysroot", "/Developer/SDKs/MacOSX10.6.sdk", "-arch", "i386"]) if not env["assertions"] : env.Append(CPPDEFINES = ["NDEBUG"]) # disable file-transfer support on iOS if env["target"] in ["iphone-device", "iphone-simulator", "xcode"] : env["experimental_ft"] = False if env["experimental_ft"] : env.Append(CPPDEFINES = ["SWIFT_EXPERIMENTAL_FT"]) if env["experimental"] : env.Append(CPPDEFINES = ["SWIFT_EXPERIMENTAL_HISTORY", "SWIFT_EXPERIMENTAL_WB"]) # 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" : env.Append(CXXFLAGS = ["/wd4068"]) elif env["PLATFORM"] == "hpux" : # HP-UX gives a flood of minor warnings if this is enabled #env.Append(CXXFLAGS = ["+w"]) pass elif env["PLATFORM"] == "sunos" : #env.Append(CXXFLAGS = ["-z verbose"]) pass else : if "clang" in env["CXX"] : env.Append(CXXFLAGS = [ "-Weverything", "-Wno-unknown-warning-option", # To stay compatible between CLang versions "-Wno-unknown-pragmas", # To stay compatible between CLang versions "-Wno-weak-vtables", # Virtually none of our elements have outlined methods. This also seems to affect classes in .cpp files, which in turn affects all our tests, which may need fixing in CLang "-Wno-shadow", # Also warns for shadowing on constructor arguments, which we do a lot "-Wno-documentation", # We don't care about documentation warnings "-Wno-exit-time-destructors", # Used a lot in e.g. CPPUnit "-Wno-c++98-compat-pedantic", # We do different things that violate this, but they could be fixed "-Wno-global-constructors", # We depend on this for e.g. string constants "-Wno-disabled-macro-expansion", # Caused due to system headers "-Wno-c++11-extensions", # We use C++11; turn this off when we use -std=c++11 "-Wno-long-long", # We use long long "-Wno-padded", "-Wno-missing-variable-declarations", # Getting rid of CPPUnit warnings "-Wno-direct-ivar-access", # Obj-C code warning ]) else : env.Append(CXXFLAGS = ["-Wextra", "-Wall", "-Wnon-virtual-dtor", "-Wundef", "-Wold-style-cast", "-Wno-long-long", "-Woverloaded-virtual", "-Wfloat-equal", "-Wredundant-decls", "-Wno-unknown-pragmas"]) gccVersion = env.get("CCVERSION", "0.0.0").split(".") if gccVersion >= ["4", "5", "0"] and not "clang" in env["CC"] : env.Append(CXXFLAGS = ["-Wlogical-op"]) if not env.get("allow_warnings", False) : env.Append(CXXFLAGS = ["-Werror"]) 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", "iphlpapi", "ws2_32", "wsock32", "Advapi32"]) env.Append(CCFLAGS = ["/EHsc", "/nologo", "/Zm256"]) env.Append(LINKFLAGS = ["/INCREMENTAL:no", "/NOLOGO"]) if int(env["MSVS_VERSION"].split(".")[0]) < 10 : mt = env.get('mt') if not mt: mt = 'mt.exe' env["LINKCOM"] = [env["LINKCOM"], '%s -nologo -manifest ${TARGET}.manifest -outputresource:$TARGET;1' % mt] env["SHLINKCOM"] = [env["SHLINKCOM"], '%s -nologo -manifest ${TARGET}.manifest -outputresource:$TARGET;2' % mt] if env["PLATFORM"] == "darwin" and not env["target"] in ["iphone-device", "iphone-simulator", "xcode", "android"] : env["PLATFORM_FLAGS"]["FRAMEWORKS"] += ["IOKit", "AppKit", "SystemConfiguration", "Security", "SecurityInterface"] # Required by boost headers on HP-UX if env["PLATFORM"] == "hpux" : env.Append(CXXFLAGS = ["+hpxstd98", "-mt", "-AA"]) # FIXME: Need -AA for linking C++ but not C #env.Append(LINKFLAGS = ["-AA"]) # 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", "SLUIFT_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(" ")], []) env["IPHONEOS_DEPLOYMENT_TARGET"] = os.environ["IPHONEOS_DEPLOYMENT_TARGET"] # Use absolute path sources so Xcode can highlight compilation errors in swiften env['CXXCOM'] = '$CXX -o $TARGET -c $CXXFLAGS $CCFLAGS $_CCCOMCOM ${SOURCES.abspath}' else : # Hard code values env["XCODE_PLATFORM_DEVELOPER_BIN_DIR"] = "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin" if target == "iphone-device": env["XCODE_ARCH_FLAGS"] = ["-arch", "armv6", "-arch", "armv7"] sdkPart = "iPhoneOS" else : env["XCODE_ARCH_FLAGS"] = ["-arch", "i386"] sdkPart = "iPhoneSimulator" sdkVer = "6.0" env["XCODE_SDKROOT"] = "/Applications/Xcode.app/Contents/Developer/Platforms/" + sdkPart + ".platform/Developer/SDKs/" + sdkPart + sdkVer + ".sdk" env["IPHONEOS_DEPLOYMENT_TARGET"] = "4.1" # Set the build flags env["CC"] = os.environ["DEVELOPER_BIN_DIR"] + "/gcc" env["CXX"] = os.environ["DEVELOPER_BIN_DIR"] + "/g++" env["OBJCCFLAGS"] = ["-fobjc-abi-version=2", "-fobjc-legacy-dispatch"] env["LD"] = env["CC"] env.Append(CCFLAGS = env["XCODE_ARCH_FLAGS"] + ["-fvisibility=hidden", "-miphoneos-version-min=" + env["IPHONEOS_DEPLOYMENT_TARGET"]]) env.Append(LINKFLAGS = "-miphoneos-version-min=" + env["IPHONEOS_DEPLOYMENT_TARGET"]) if os.environ.get("GCC_THUMB_SUPPORT", False) : env.Append(CCFLAGS = ["-mthumb"]) env.Append(LINKFLAGS = env["XCODE_ARCH_FLAGS"]) env.Append(CPPFLAGS = ["-isysroot", "$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"]) ################################################################################ # Android ################################################################################ if target in ["android"] : env["ENV"]["PATH"] = env["android_toolchain"] + "/bin:" + env["ENV"]["PATH"] env["CC"] = "arm-linux-androideabi-gcc" env["CXX"] = "arm-linux-androideabi-g++" env["AR"] = "arm-linux-androideabi-ar" env["RANLIB"] = "arm-linux-androideabi-ranlib" env.Append(CPPDEFINES = ["ANDROID"]) env.Append(CPPDEFINES = ["_REENTRANT", "_GLIBCXX__PTHREADS"]) # CCache 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] if env.get("CC", "") != "" : env["CC"] = "ccache " + env["CC"] else : env["CC"] = "ccache gcc" if env.get("CXX", "") != "" : env["CXX"] = "ccache " + env["CXX"] else : env["CC"] = "ccache g++" conf_env = env.Clone() Export("env") Export("conf_env") variant = "" if env["enable_variants"] : fingerprint = ",".join([flag for flag in env["CXXFLAGS"] + env["CCFLAGS"] if not flag.startswith("-W") and not flag.startswith("-fvisibility")]) variant = "build/" + fingerprint if not os.path.exists(Dir("#/build").abspath) : os.mkdir(Dir("#/build").abspath) if os.path.exists(Dir("#/build/current").abspath) : os.unlink(Dir("#/build/current").abspath) os.symlink(os.path.basename(variant), Dir("#/build/current").abspath) Return("variant")