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