cannam@89: import sys, os.path
cannam@89: 
cannam@89: def rsplit(toSplit, sub, max=-1):
cannam@89:     """ str.rsplit seems to have been introduced in 2.4 :( """
cannam@89:     l = []
cannam@89:     i = 0
cannam@89:     while i != max:
cannam@89:         try: idx = toSplit.rindex(sub)
cannam@89:         except ValueError: break
cannam@89: 
cannam@89:         toSplit, splitOff = toSplit[:idx], toSplit[idx + len(sub):]
cannam@89:         l.insert(0, splitOff)
cannam@89:         i += 1
cannam@89: 
cannam@89:     l.insert(0, toSplit)
cannam@89:     return l
cannam@89: 
cannam@89: sconsDir = os.path.join("build", "scons")
cannam@89: SConscript(os.path.join(sconsDir, "SConscript_common"))
cannam@89: Import("Platform", "Posix", "ApiVer")
cannam@89: 
cannam@89: # SConscript_opts exports PortAudio options
cannam@89: optsDict = SConscript(os.path.join(sconsDir, "SConscript_opts"))
cannam@89: optionsCache = os.path.join(sconsDir, "options.cache")   # Save options between runs in this cache
cannam@89: options = Options(optionsCache, args=ARGUMENTS)
cannam@89: for k in ("Installation Dirs", "Build Targets", "Host APIs", "Build Parameters", "Bindings"):
cannam@89:     options.AddOptions(*optsDict[k])
cannam@89: # Propagate options into environment
cannam@89: env = Environment(options=options)
cannam@89: # Save options for next run
cannam@89: options.Save(optionsCache, env)
cannam@89: # Generate help text for options
cannam@89: env.Help(options.GenerateHelpText(env))
cannam@89: 
cannam@89: buildDir = os.path.join("#", sconsDir, env["PLATFORM"])
cannam@89: 
cannam@89: # Determine parameters to build tools
cannam@89: if Platform in Posix:
cannam@89:     threadCFlags = ''
cannam@89:     if Platform != 'darwin':
cannam@89:         threadCFlags = "-pthread "
cannam@89:     baseLinkFlags = threadCFlags
cannam@89:     baseCxxFlags = baseCFlags = "-Wall -pedantic -pipe " + threadCFlags
cannam@89:     debugCxxFlags = debugCFlags = "-g"
cannam@89:     optCxxFlags = optCFlags  = "-O2"
cannam@89: env.Append(CCFLAGS = baseCFlags)
cannam@89: env.Append(CXXFLAGS = baseCxxFlags)
cannam@89: env.Append(LINKFLAGS = baseLinkFlags)
cannam@89: if env["enableDebug"]:
cannam@89:     env.AppendUnique(CCFLAGS=debugCFlags.split())
cannam@89:     env.AppendUnique(CXXFLAGS=debugCxxFlags.split())
cannam@89: if env["enableOptimize"]:
cannam@89:     env.AppendUnique(CCFLAGS=optCFlags.split())
cannam@89:     env.AppendUnique(CXXFLAGS=optCxxFlags.split())
cannam@89: if not env["enableAsserts"]:
cannam@89:     env.AppendUnique(CPPDEFINES=["-DNDEBUG"])
cannam@89: if env["customCFlags"]:
cannam@89:     env.Append(CCFLAGS=Split(env["customCFlags"]))
cannam@89: if env["customCxxFlags"]:
cannam@89:     env.Append(CXXFLAGS=Split(env["customCxxFlags"]))
cannam@89: if env["customLinkFlags"]:
cannam@89:     env.Append(LINKFLAGS=Split(env["customLinkFlags"]))
cannam@89: 
cannam@89: env.Append(CPPPATH=[os.path.join("#", "include"), "common"])
cannam@89: 
cannam@89: # Store all signatures in one file, otherwise .sconsign files will get installed along with our own files
cannam@89: env.SConsignFile(os.path.join(sconsDir, ".sconsign"))
cannam@89: 
cannam@89: env.SConscriptChdir(False)
cannam@89: sources, sharedLib, staticLib, tests, portEnv, hostApis = env.SConscript(os.path.join("src", "SConscript"),
cannam@89:         build_dir=buildDir, duplicate=False, exports=["env"])
cannam@89: 
cannam@89: if Platform in Posix:
cannam@89:     prefix = env["prefix"]
cannam@89:     includeDir = os.path.join(prefix, "include")
cannam@89:     libDir = os.path.join(prefix, "lib")
cannam@89:     env.Alias("install", includeDir)
cannam@89:     env.Alias("install", libDir)
cannam@89: 
cannam@89:     # pkg-config
cannam@89: 
cannam@89:     def installPkgconfig(env, target, source):
cannam@89:         tgt = str(target[0])
cannam@89:         src = str(source[0])
cannam@89:         f = open(src)
cannam@89:         try: txt = f.read()
cannam@89:         finally: f.close()
cannam@89:         txt = txt.replace("@prefix@", prefix)
cannam@89:         txt = txt.replace("@exec_prefix@", prefix)
cannam@89:         txt = txt.replace("@libdir@", libDir)
cannam@89:         txt = txt.replace("@includedir@", includeDir)
cannam@89:         txt = txt.replace("@LIBS@", " ".join(["-l%s" % l for l in portEnv["LIBS"]]))
cannam@89:         txt = txt.replace("@THREAD_CFLAGS@", threadCFlags)
cannam@89: 
cannam@89:         f = open(tgt, "w")
cannam@89:         try: f.write(txt)
cannam@89:         finally: f.close()
cannam@89: 
cannam@89:     pkgconfigTgt = "portaudio-%d.0.pc" % int(ApiVer.split(".", 1)[0])
cannam@89:     env.Command(os.path.join(libDir, "pkgconfig", pkgconfigTgt),
cannam@89:         os.path.join("#", pkgconfigTgt + ".in"), installPkgconfig)
cannam@89: 
cannam@89: # Default to None, since if the user disables all targets and no Default is set, all targets
cannam@89: # are built by default
cannam@89: env.Default(None)
cannam@89: if env["enableTests"]:
cannam@89:     env.Default(tests)
cannam@89: if env["enableShared"]:
cannam@89:     env.Default(sharedLib)
cannam@89: 
cannam@89:     if Platform in Posix:
cannam@89:         def symlink(env, target, source):
cannam@89:             trgt = str(target[0])
cannam@89:             src = str(source[0])
cannam@89: 
cannam@89:             if os.path.islink(trgt) or os.path.exists(trgt):
cannam@89:                 os.remove(trgt)
cannam@89:             os.symlink(os.path.basename(src), trgt)
cannam@89: 
cannam@89:         major, minor, micro = [int(c) for c in ApiVer.split(".")]
cannam@89:         
cannam@89:         soFile = "%s.%s" % (os.path.basename(str(sharedLib[0])), ApiVer)
cannam@89:         env.InstallAs(target=os.path.join(libDir, soFile), source=sharedLib)
cannam@89:         # Install symlinks
cannam@89:         symTrgt = os.path.join(libDir, soFile)
cannam@89:         env.Command(os.path.join(libDir, "libportaudio.so.%d.%d" % (major, minor)),
cannam@89:             symTrgt, symlink)
cannam@89:         symTrgt = rsplit(symTrgt, ".", 1)[0]
cannam@89:         env.Command(os.path.join(libDir, "libportaudio.so.%d" % major), symTrgt, symlink)
cannam@89:         symTrgt = rsplit(symTrgt, ".", 1)[0]
cannam@89:         env.Command(os.path.join(libDir, "libportaudio.so"), symTrgt, symlink)
cannam@89: 
cannam@89: if env["enableStatic"]:
cannam@89:     env.Default(staticLib)
cannam@89:     env.Install(libDir, staticLib)
cannam@89: 
cannam@89: env.Install(includeDir, os.path.join("include", "portaudio.h"))
cannam@89: 
cannam@89: 
cannam@89: if env["enableCxx"]:
cannam@89:     env.SConscriptChdir(True)
cannam@89:     cxxEnv = env.Copy()
cannam@89:     sharedLibs, staticLibs, headers = env.SConscript(os.path.join("bindings", "cpp", "SConscript"),
cannam@89:             exports={"env": cxxEnv, "buildDir": buildDir}, build_dir=os.path.join(buildDir, "portaudiocpp"), duplicate=False)
cannam@89:     if env["enableStatic"]:
cannam@89:         env.Default(staticLibs)
cannam@89:         env.Install(libDir, staticLibs)
cannam@89:     if env["enableShared"]:
cannam@89:         env.Default(sharedLibs)
cannam@89:         env.Install(libDir, sharedLibs)
cannam@89:     env.Install(os.path.join(includeDir, "portaudiocpp"), headers)
cannam@89: 
cannam@89: # Generate portaudio_config.h header with compile-time definitions of which PA
cannam@89: # back-ends are available, and which includes back-end extension headers
cannam@89: 
cannam@89: # Host-specific headers
cannam@89: hostApiHeaders = {"ALSA": "pa_linux_alsa.h",
cannam@89:                     "ASIO": "pa_asio.h",
cannam@89:                     "COREAUDIO": "pa_mac_core.h",
cannam@89:                     "JACK": "pa_jack.h",
cannam@89:                     "WMME": "pa_winwmme.h",
cannam@89:                     }
cannam@89: 
cannam@89: def buildConfigH(target, source, env):
cannam@89:     """builder for portaudio_config.h"""
cannam@89:     global hostApiHeaders, hostApis
cannam@89:     out = ""
cannam@89:     for hostApi in hostApis:
cannam@89:         out += "#define PA_HAVE_%s\n" % hostApi
cannam@89: 
cannam@89:         hostApiSpecificHeader = hostApiHeaders.get(hostApi, None)
cannam@89:         if hostApiSpecificHeader:
cannam@89:             out += "#include \"%s\"\n" % hostApiSpecificHeader
cannam@89: 
cannam@89:         out += "\n"
cannam@89:     # Strip the last newline
cannam@89:     if out and out[-1] == "\n":
cannam@89:         out = out[:-1]
cannam@89: 
cannam@89:     f = file(str(target[0]), 'w')
cannam@89:     try: f.write(out)
cannam@89:     finally: f.close()
cannam@89:     return 0
cannam@89: 
cannam@89: # Define the builder for the config header
cannam@89: env.Append(BUILDERS={"portaudioConfig": env.Builder(
cannam@89:             action=Action(buildConfigH), target_factory=env.fs.File)})
cannam@89: 
cannam@89: confH = env.portaudioConfig(File("portaudio_config.h", "include"),
cannam@89:         File("portaudio.h", "include"))
cannam@89: env.Default(confH)
cannam@89: env.Install(os.path.join(includeDir, "portaudio"), confH)
cannam@89: 
cannam@89: for api in hostApis:
cannam@89:     if api in hostApiHeaders:
cannam@89:         env.Install(os.path.join(includeDir, "portaudio"),
cannam@89:                 File(hostApiHeaders[api], "include"))