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https://github.com/cookiengineer/audacity
synced 2026-01-11 23:25:53 +01:00
Move library tree where it belongs
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ra
219
lib-src/portaudio-v19/src/SConscript
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219
lib-src/portaudio-v19/src/SConscript
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import os.path, copy, sys
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def checkSymbol(conf, header, library=None, symbol=None, autoAdd=True, critical=False, pkgName=None):
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""" Check for symbol in library, optionally look only for header.
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@param conf: Configure instance.
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@param header: The header file where the symbol is declared.
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@param library: The library in which the symbol exists, if None it is taken to be the standard C library.
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@param symbol: The symbol to look for, if None only the header will be looked up.
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@param autoAdd: Automatically link with this library if check is positive.
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@param critical: Raise on error?
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@param pkgName: Optional name of pkg-config entry for library, to determine build parameters.
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@return: True/False
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"""
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origEnv = conf.env.Copy() # Copy unmodified environment so we can restore it upon error
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env = conf.env
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if library is None:
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library = "c" # Standard library
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autoAdd = False
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if pkgName is not None:
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origLibs = copy.copy(env.get("LIBS", None))
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try: env.ParseConfig("pkg-config --silence-errors %s --cflags --libs" % pkgName)
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except: pass
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else:
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# I see no other way of checking that the parsing succeeded, if it did add no more linking parameters
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if env.get("LIBS", None) != origLibs:
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autoAdd = False
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try:
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if not conf.CheckCHeader(header, include_quotes="<>"):
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raise ConfigurationError("missing header %s" % header)
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if symbol is not None and not conf.CheckLib(library, symbol, language="C", autoadd=autoAdd):
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raise ConfigurationError("missing symbol %s in library %s" % (symbol, library))
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except ConfigurationError:
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conf.env = origEnv
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if not critical:
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return False
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raise
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return True
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import SCons.Errors
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# Import common variables
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# Could use '#' to refer to top-level SConstruct directory, but looks like env.SConsignFile doesn't interpret this at least :(
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sconsDir = os.path.abspath(os.path.join("build", "scons"))
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try:
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Import("Platform", "Posix", "ConfigurationError", "ApiVer")
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except SCons.Errors.UserError:
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# The common objects must be exported first
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SConscript(os.path.join(sconsDir, "SConscript_common"))
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Import("Platform", "Posix", "ConfigurationError", "ApiVer")
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Import("env")
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# This will be manipulated
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env = env.Copy()
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# We operate with a set of needed libraries and optional libraries, the latter stemming from host API implementations.
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# For libraries of both types we record a set of values that is used to look for the library in question, during
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# configuration. If the corresponding library for a host API implementation isn't found, the implementation is left out.
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neededLibs = []
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optionalImpls = {}
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if Platform in Posix:
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env.Append(CPPPATH=os.path.join("os", "unix"))
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neededLibs += [("pthread", "pthread.h", "pthread_create"), ("m", "math.h", "sin")]
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if env["useALSA"]:
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optionalImpls["ALSA"] = ("asound", "alsa/asoundlib.h", "snd_pcm_open")
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if env["useJACK"]:
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optionalImpls["JACK"] = ("jack", "jack/jack.h", "jack_client_new")
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if env["useOSS"]:
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# TODO: It looks like the prefix for soundcard.h depends on the platform
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optionalImpls["OSS"] = ("oss", "sys/soundcard.h", None)
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if Platform == 'netbsd':
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optionalImpls["OSS"] = ("ossaudio", "sys/soundcard.h", "_oss_ioctl")
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if env["useASIHPI"]:
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optionalImpls["ASIHPI"] = ("hpi", "asihpi/hpi.h", "HPI_SubSysCreate")
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if env["useCOREAUDIO"]:
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optionalImpls["COREAUDIO"] = ("CoreAudio", "CoreAudio/CoreAudio.h", None)
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else:
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raise ConfigurationError("unknown platform %s" % Platform)
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if Platform == "darwin":
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env.Append(LINKFLAGS="-framework CoreFoundation -framework CoreServices -framework CoreAudio -framework AudioToolBox -framework AudioUnit")
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elif Platform == "cygwin":
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env.Append(LIBS=["winmm"])
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elif Platform == "irix":
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neededLibs += [("audio", "dmedia/audio.h", "alOpenPort"), ("dmedia", "dmedia/dmedia.h", "dmGetUST")]
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env.Append(CPPDEFINES=["PA_USE_SGI"])
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def CheckCTypeSize(context, tp):
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""" Check size of C type.
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@param context: A configuration context.
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@param tp: The type to check.
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@return: Size of type, in bytes.
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"""
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context.Message("Checking the size of C type %s..." % tp)
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ret = context.TryRun("""
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#include <stdio.h>
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int main() {
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printf("%%d", sizeof(%s));
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return 0;
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}
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""" % tp, ".c")
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if not ret[0]:
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context.Result(" Couldn't obtain size of type %s!" % tp)
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return None
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assert ret[1]
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sz = int(ret[1])
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context.Result("%d" % sz)
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return sz
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"""
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if sys.byteorder == "little":
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env.Append(CPPDEFINES=["PA_LITTLE_ENDIAN"])
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elif sys.byteorder == "big":
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env.Append(CPPDEFINES=["PA_BIG_ENDIAN"])
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else:
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raise ConfigurationError("unknown byte order: %s" % sys.byteorder)
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"""
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if env["enableDebugOutput"]:
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env.Append(CPPDEFINES=["PA_ENABLE_DEBUG_OUTPUT"])
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# Start configuration
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# Use an absolute path for conf_dir, otherwise it gets created both relative to current directory and build directory
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conf = env.Configure(log_file=os.path.join(sconsDir, "sconf.log"), custom_tests={"CheckCTypeSize": CheckCTypeSize},
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conf_dir=os.path.join(sconsDir, ".sconf_temp"))
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conf.env.Append(CPPDEFINES=["SIZEOF_SHORT=%d" % conf.CheckCTypeSize("short")])
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conf.env.Append(CPPDEFINES=["SIZEOF_INT=%d" % conf.CheckCTypeSize("int")])
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conf.env.Append(CPPDEFINES=["SIZEOF_LONG=%d" % conf.CheckCTypeSize("long")])
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if checkSymbol(conf, "time.h", "rt", "clock_gettime"):
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conf.env.Append(CPPDEFINES=["HAVE_CLOCK_GETTIME"])
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if checkSymbol(conf, "time.h", symbol="nanosleep"):
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conf.env.Append(CPPDEFINES=["HAVE_NANOSLEEP"])
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if conf.CheckCHeader("sys/soundcard.h"):
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conf.env.Append(CPPDEFINES=["HAVE_SYS_SOUNDCARD_H"])
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if conf.CheckCHeader("linux/soundcard.h"):
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conf.env.Append(CPPDEFINES=["HAVE_LINUX_SOUNDCARD_H"])
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if conf.CheckCHeader("machine/soundcard.h"):
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conf.env.Append(CPPDEFINES=["HAVE_MACHINE_SOUNDCARD_H"])
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# Look for needed libraries and link with them
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for lib, hdr, sym in neededLibs:
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checkSymbol(conf, hdr, lib, sym, critical=True)
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# Look for host API libraries, if a library isn't found disable corresponding host API implementation.
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for name, val in optionalImpls.items():
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lib, hdr, sym = val
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if checkSymbol(conf, hdr, lib, sym, critical=False, pkgName=name.lower()):
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conf.env.Append(CPPDEFINES=["PA_USE_%s=1" % name.upper()])
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else:
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del optionalImpls[name]
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# Configuration finished
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env = conf.Finish()
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# PA infrastructure
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CommonSources = [os.path.join("common", f) for f in "pa_allocation.c pa_converters.c pa_cpuload.c pa_dither.c pa_front.c \
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pa_process.c pa_skeleton.c pa_stream.c pa_trace.c pa_debugprint.c pa_ringbuffer.c".split()]
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# Host APIs implementations
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ImplSources = []
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if Platform in Posix:
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ImplSources += [os.path.join("os", "unix", f) for f in "pa_unix_hostapis.c pa_unix_util.c".split()]
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if "ALSA" in optionalImpls:
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ImplSources.append(os.path.join("hostapi", "alsa", "pa_linux_alsa.c"))
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if "JACK" in optionalImpls:
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ImplSources.append(os.path.join("hostapi", "jack", "pa_jack.c"))
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if "OSS" in optionalImpls:
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ImplSources.append(os.path.join("hostapi", "oss", "pa_unix_oss.c"))
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if "ASIHPI" in optionalImpls:
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ImplSources.append(os.path.join("hostapi", "asihpi", "pa_linux_asihpi.c"))
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if "COREAUDIO" in optionalImpls:
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ImplSources.append([os.path.join("hostapi", "coreaudio", f) for f in """
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pa_mac_core.c pa_mac_core_blocking.c pa_mac_core_utilities.c
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""".split()])
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sources = CommonSources + ImplSources
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sharedLibEnv = env.Copy()
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if Platform in Posix:
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# Add soname to library, this is so a reference is made to the versioned library in programs linking against libportaudio.so
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if Platform != 'darwin':
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sharedLibEnv.AppendUnique(SHLINKFLAGS="-Wl,-soname=libportaudio.so.%d" % int(ApiVer.split(".")[0]))
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sharedLib = sharedLibEnv.SharedLibrary(target="portaudio", source=sources)
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staticLib = env.StaticLibrary(target="portaudio", source=sources)
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if Platform in Posix:
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prefix = env["prefix"]
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includeDir = os.path.join(prefix, "include")
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libDir = os.path.join(prefix, "lib")
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testNames = ["patest_sine", "paqa_devs", "paqa_errs", "patest1", "patest_buffer", "patest_callbackstop", "patest_clip", \
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"patest_dither", "patest_hang", "patest_in_overflow", "patest_latency", "patest_leftright", "patest_longsine", \
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"patest_many", "patest_maxsines", "patest_multi_sine", "patest_out_underflow", "patest_pink", "patest_prime", \
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"patest_read_record", "patest_record", "patest_ringmix", "patest_saw", "patest_sine8", "patest_sine", \
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"patest_sine_time", "patest_start_stop", "patest_stop", "patest_sync", "patest_toomanysines", \
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"patest_underflow", "patest_wire", "patest_write_sine", "pa_devs", "pa_fuzz", "pa_minlat", \
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"patest_sine_channelmaps",]
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# The test directory ("bin") should be in the top-level PA directory
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tests = [env.Program(target=os.path.join("#", "bin", name), source=[os.path.join("#", "test", name + ".c"),
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staticLib]) for name in testNames]
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# Detect host APIs
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hostApis = []
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for cppdef in env["CPPDEFINES"]:
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if cppdef.startswith("PA_USE_"):
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hostApis.append(cppdef[7:-2])
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Return("sources", "sharedLib", "staticLib", "tests", "env", "hostApis")
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