libffado/SConstruct

   1 # -*- coding: utf-8 -*-
   2 #
   3 # Copyright (C) 2007, 2008, 2010 Arnold Krille
   4 # Copyright (C) 2007, 2008 Pieter Palmers
   5 # Copyright (C) 2008, 2012 Jonathan Woithe
   6 #
   7 # This file is part of FFADO
   8 # FFADO = Free Firewire (pro-)audio drivers for linux
   9 #
  10 # FFADO is based upon FreeBoB.
  11 #
  12 # This program is free software: you can redistribute it and/or modify
  13 # it under the terms of the GNU General Public License as published by
  14 # the Free Software Foundation, either version 2 of the License, or
  15 # (at your option) version 3 of the License.
  16 #
  17 # This program is distributed in the hope that it will be useful,
  18 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 # GNU General Public License for more details.
  21 #
  22 # You should have received a copy of the GNU General Public License
  23 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  24 #
  25
  26 FFADO_API_VERSION = "9"
  27 FFADO_VERSION="2.1.9999"
  28
  29 from subprocess import Popen, PIPE
  30 import os
  31 import re
  32 from string import Template
  33 import imp
  34 import distutils.sysconfig
  35
  36 if not os.path.isdir( "cache" ):
  37         os.makedirs( "cache" )
  38
  39 opts = Variables( "cache/options.cache" )
  40
  41 opts.AddVariables(
  42     BoolVariable( "DEBUG", """\
  43 Toggle debug-build. DEBUG means \"-g -Wall\" and more, otherwise we will use
  44   \"-O2\" to optimize.""", True ),
  45     BoolVariable( "PROFILE", "Build with symbols and other profiling info", False ),
  46     PathVariable( "PREFIX", "The prefix where ffado will be installed to.", "/usr/local", PathVariable.PathAccept ),
  47     PathVariable( "BINDIR", "Overwrite the directory where apps are installed to.", "$PREFIX/bin", PathVariable.PathAccept ),
  48     PathVariable( "LIBDIR", "Overwrite the directory where libs are installed to.", "$PREFIX/lib", PathVariable.PathAccept ),
  49     PathVariable( "INCLUDEDIR", "Overwrite the directory where headers are installed to.", "$PREFIX/include", PathVariable.PathAccept ),
  50     PathVariable( "SHAREDIR", "Overwrite the directory where misc shared files are installed to.", "$PREFIX/share/libffado", PathVariable.PathAccept ),
  51     PathVariable( "MANDIR", "Overwrite the directory where manpages are installed", "$PREFIX/man", PathVariable.PathAccept ),
  52     PathVariable( "PYPKGDIR", "The directory where the python modules get installed.",
  53         distutils.sysconfig.get_python_lib( prefix="$PREFIX" ), PathVariable.PathAccept ),
  54     PathVariable( "UDEVDIR", "Overwrite the directory where udev rules are installed to.", "/lib/udev/rules.d/", PathVariable.PathAccept ),
  55     BoolVariable( "ENABLE_BEBOB", "Enable/Disable support for the BeBoB platform.", True ),
  56     BoolVariable( "ENABLE_FIREWORKS", "Enable/Disable support for the ECHO Audio FireWorks platform.", True ),
  57     BoolVariable( "ENABLE_OXFORD", "Enable/Disable support for the Oxford Semiconductor FW platform.", True ),
  58     BoolVariable( "ENABLE_MOTU", "Enable/Disable support for the MOTU platform.", True ),
  59     BoolVariable( "ENABLE_DICE", "Enable/Disable support for the TCAT DICE platform.", True ),
  60     BoolVariable( "ENABLE_METRIC_HALO", "Enable/Disable support for the Metric Halo platform.", False ),
  61     BoolVariable( "ENABLE_RME", "Enable/Disable support for the RME platform.", True ),
  62     BoolVariable( "ENABLE_DIGIDESIGN", "Enable/Disable support for Digidesign interfaces.", False ),
  63     BoolVariable( "ENABLE_BOUNCE", "Enable/Disable the BOUNCE device.", False ),
  64     BoolVariable( "ENABLE_GENERICAVC", """\
  65 Enable/Disable the the generic avc part (mainly used by apple).
  66   Note that disabling this option might be overwritten by other devices needing
  67   this code.""", False ),
  68     BoolVariable( "ENABLE_ALL", "Enable/Disable support for all devices.", False ),
  69     BoolVariable( "SERIALIZE_USE_EXPAT", "Use libexpat for XML serialization.", False ),
  70     BoolVariable( "BUILD_TESTS", """\
  71 Build the tests in their directory. As some contain quite some functionality,
  72   this is on by default.
  73   If you just want to use ffado with jack without the tools, you can disable this.\
  74 """, True ),
  75     BoolVariable( "BUILD_STATIC_TOOLS", "Build a statically linked version of the FFADO tools.", False ),
  76     EnumVariable('DIST_TARGET', 'Build target for cross compiling packagers', 'auto', allowed_values=('auto', 'i386', 'i686', 'x86_64', 'powerpc', 'powerpc64', 'none' ), ignorecase=2),
  77     BoolVariable( "ENABLE_OPTIMIZATIONS", "Enable optimizations and the use of processor specific extentions (MMX/SSE/...).", False ),
  78     BoolVariable( "PEDANTIC", "Enable -Werror and more pedantic options during compile.", False ),
  79     ( "COMPILE_FLAGS", "Add additional flags to the environment.\nOnly meant for distributors and gentoo-users who want to over-optimize their built.\n Using this is not supported by the ffado-devs!" ),
  80     EnumVariable( "ENABLE_SETBUFFERSIZE_API_VER", "Report API version at runtime which includes support for dynamic buffer resizing (requires recent jack).", 'auto', allowed_values=('auto', 'true', 'false', 'force'), ignorecase=2),
  81
  82     )
  83
  84 ## Load the builders in config
  85 buildenv=os.environ
  86
  87 env = Environment( tools=['default','scanreplace','pyuic','pyuic4','dbus','doxygen','pkgconfig'], toolpath=['admin'], ENV = buildenv, options=opts )
  88
  89 if env.has_key('COMPILE_FLAGS') and len(env['COMPILE_FLAGS']) > 0:
  90     print '''
  91  * Usage of additional flags is not supported by the ffado-devs.
  92  * Use at own risk!
  93  *
  94  * Currentl value is '%s'
  95  ''' % env['COMPILE_FLAGS']
  96     env.MergeFlags(env['COMPILE_FLAGS'])
  97
  98 Help( """
  99 For building ffado you can set different options as listed below. You have to
 100 specify them only once, scons will save the last value you used and re-use
 101 that.
 102 To really undo your settings and return to the factory defaults, remove the
 103 "cache"-folder and the file ".sconsign.dblite" from this directory.
 104 For example with: "rm -Rf .sconsign.dblite cache"
 105
 106 Note that this is a development version! Don't complain if its not working!
 107 See www.ffado.org for stable releases.
 108 """ )
 109 Help( opts.GenerateHelpText( env ) )
 110
 111 # make sure the necessary dirs exist
 112 if not os.path.isdir( "cache" ):
 113         os.makedirs( "cache" )
 114 if not os.path.isdir( 'cache/objects' ):
 115     os.makedirs( 'cache/objects' )
 116
 117 CacheDir( 'cache/objects' )
 118
 119 opts.Save( 'cache/options.cache', env )
 120
 121 def ConfigGuess( context ):
 122     context.Message( "Trying to find the system triple: " )
 123     ret = os.popen( "/bin/sh admin/config.guess" ).read()[:-1]
 124     context.Result( ret )
 125     return ret
 126
 127 def CheckForApp( context, app ):
 128     context.Message( "Checking whether '" + app + "' executes " )
 129     ret = context.TryAction( app )
 130     context.Result( ret[0] )
 131     return ret[0]
 132
 133 def CheckForPyModule( context, module ):
 134     context.Message( "Checking for the python module '" + module + "' " )
 135     ret = context.TryAction( "python $SOURCE", "import %s" % module, ".py" )
 136     context.Result( ret[0] )
 137     return ret[0]
 138
 139 def CompilerCheck( context ):
 140     context.Message( "Checking for a working C-compiler " )
 141     ret = context.TryRun( """
 142 #include <stdio.h>
 143
 144 int main() {
 145     printf( "Hello World!" );
 146     return 0;
 147 }""", '.c' )[0]
 148     context.Result( ret )
 149     if ret == 0:
 150         return False;
 151     context.Message( "Checking for a working C++-compiler " )
 152     ret = context.TryRun( """
 153 #include <iostream>
 154
 155 int main() {
 156     std::cout << "Hello World!" << std::endl;
 157     return 0;
 158 }""", ".cpp" )[0]
 159     context.Result( ret )
 160     return ret
 161
 162 def CheckPKG(context, name):
 163     context.Message( 'Checking for %s... ' % name )
 164     ret = context.TryAction('pkg-config --exists \'%s\'' % name)[0]
 165     context.Result( ret )
 166     return ret
 167
 168 tests = {
 169     "ConfigGuess" : ConfigGuess,
 170     "CheckForApp" : CheckForApp,
 171     "CheckForPyModule": CheckForPyModule,
 172     "CompilerCheck" : CompilerCheck,
 173     "CheckPKG" : CheckPKG,
 174 }
 175 tests.update( env['PKGCONFIG_TESTS'] )
 176 tests.update( env['PYUIC_TESTS'] )
 177 tests.update( env['PYUIC4_TESTS'] )
 178
 179 conf = Configure( env,
 180     custom_tests = tests,
 181     conf_dir = "cache/",
 182     log_file = 'cache/config.log' )
 183
 184 version_re = re.compile(r'^(\d+)\.(\d+)\.(\d+)')
 185
 186 def VersionInt(vers):
 187     match = version_re.match(vers)
 188     if not match:
 189         return -1
 190     (maj, min, patch) = match.group(1, 2, 3)
 191     # For now allow "min" to run up to 65535.  "maj" and "patch" are
 192     # restricted to 0-255.
 193     return (int(maj) << 24) | (int(min) << 8) | int(patch)
 194
 195 def CheckJackdVer():
 196     print 'Checking jackd version...',
 197     ret = Popen("which jackd >/dev/null 2>&1 && jackd --version | tail -n 1 | cut -d ' ' -f 3", shell=True, stdout=PIPE).stdout.read()[:-1]
 198     if (ret == ""):
 199         print "not installed"
 200         return -1
 201     else:
 202         print ret
 203     return VersionInt(ret)
 204
 205 if env['SERIALIZE_USE_EXPAT']:
 206     env['SERIALIZE_USE_EXPAT']=1
 207 else:
 208     env['SERIALIZE_USE_EXPAT']=0
 209
 210 if env['ENABLE_BOUNCE'] or env['ENABLE_ALL']:
 211     env['REQUIRE_LIBAVC']=1
 212 else:
 213     env['REQUIRE_LIBAVC']=0
 214
 215 if not env.GetOption('clean'):
 216     #
 217     # Check for working gcc and g++ compilers and their environment.
 218     #
 219     if not conf.CompilerCheck():
 220         print "\nIt seems as if your system isn't even able to compile any C-/C++-programs. Probably you don't have gcc and g++ installed. Compiling a package from source without a working compiler is very hard to do, please install the needed packages.\nHint: on *ubuntu you need both gcc- and g++-packages installed, easiest solution is to install build-essential which depends on gcc and g++."
 221         Exit( 1 )
 222
 223     # Check for pkg-config before using pkg-config to check for other dependencies.
 224     if not conf.CheckForPKGConfig():
 225         print "\nThe program 'pkg-config' could not be found.\nEither you have to install the corresponding package first or make sure that PATH points to the right directions."
 226         Exit( 1 )
 227
 228     #
 229     # The following checks are for headers and libs and packages we need.
 230     #
 231     allpresent = 1;
 232     # for cache-serialization.
 233     if env['SERIALIZE_USE_EXPAT']:
 234         allpresent &= conf.CheckHeader( "expat.h" )
 235         allpresent &= conf.CheckLib( 'expat', 'XML_ExpatVersion', '#include <expat.h>' )
 236
 237     pkgs = {
 238         'libraw1394' : '2.0.5',
 239         'libiec61883' : '1.1.0',
 240         'libconfig++' : '0'
 241         }
 242
 243     if env['REQUIRE_LIBAVC']:
 244         pkgs['libavc1394'] = '0.5.3'
 245
 246     if not env['SERIALIZE_USE_EXPAT']:
 247         pkgs['libxml++-2.6'] = '2.13.0'
 248
 249     # Provide a way for users to compile newer libffado which will work
 250     # against older jack installations which will not accept the new API
 251     # version reported at runtime.
 252     jackd_ver = CheckJackdVer()
 253     if (jackd_ver != -1):
 254         # If jackd is available, use the version number reported by it.  This
 255         # means users don't have to have jack development files present on
 256         # their system for this to work.
 257         have_jack = (jackd_ver >= VersionInt('0.0.0'))
 258         good_jack1 = (jackd_ver < VersionInt('1.9.0')) and (jackd_ver >= VersionInt('0.122.0'))
 259         good_jack2 = (jackd_ver >= VersionInt('1.9.9'))
 260     else:
 261         # Jackd is not runnable.  Attempt to identify a version from
 262         # pkgconfig on the off-chance jack details are available from there.
 263         print "Will retry jack detection using pkg-config"
 264         have_jack = conf.CheckPKG('jack >= 0.0.0')
 265         good_jack1 = conf.CheckPKG('jack < 1.9.0') and conf.CheckPKG('jack >= 0.122.0')
 266         good_jack2 = conf.CheckPKG('jack >= 1.9.9')
 267     if env['ENABLE_SETBUFFERSIZE_API_VER'] == 'auto':
 268         if not(have_jack):
 269             print """
 270 No Jack Audio Connection Kit (JACK) installed: assuming a FFADO
 271 setbuffersize-compatible version will be used.
 272 """
 273         elif not(good_jack1 or good_jack2):
 274             FFADO_API_VERSION="8"
 275             print """
 276 Installed Jack Audio Connection Kit (JACK) jack does not support FFADO
 277 setbuffersize API: will report earlier API version at runtime.  Consider
 278 upgrading to jack1 >=0.122.0 or jack2 >=1.9.9 at some point, and then
 279 recompile ffado to gain access to this added feature.
 280 """
 281         else:
 282             print "Installed Jack Audio Connection Kit (JACK) supports FFADO setbuffersize API"
 283     elif env['ENABLE_SETBUFFERSIZE_API_VER'] == 'true':
 284         if (have_jack and not(good_jack1) and not(good_jack2)):
 285             print """
 286 SetBufferSize API version is enabled but no suitable version of Jack Audio
 287 Connection Kit (JACK) has been found.  The resulting FFADO would cause your
 288 jackd to abort with "incompatible FFADO version".  Please upgrade to
 289 jack1 >=0.122.0 or jack2 >=1.9.9, or set ENABLE_SETBUFFERSIZE_API_VER to "auto"
 290 or "false".
 291 """
 292             # Although it's not strictly an error, in almost every case that
 293             # this occurs the user will want to know about it and fix the
 294             # problem, so we exit so they're guaranteed of seeing the above
 295             # message.
 296             Exit( 1 )
 297         else:
 298             print "Will report SetBufferSize API version at runtime"
 299     elif env['ENABLE_SETBUFFERSIZE_API_VER'] == 'force':
 300         print "Will report SetBufferSize API version at runtime"
 301     else:
 302         FFADO_API_VERSION="8"
 303         print "Will not report SetBufferSize API version at runtime"
 304
 305     for pkg in pkgs:
 306         name2 = pkg.replace("+","").replace(".","").replace("-","").upper()
 307         env['%s_FLAGS' % name2] = conf.GetPKGFlags( pkg, pkgs[pkg] )
 308         #print '%s_FLAGS' % name2
 309         if env['%s_FLAGS'%name2] == 0:
 310             allpresent &= 0
 311
 312     if not allpresent:
 313         print """
 314 (At least) One of the dependencies is missing. I can't go on without it, please
 315 install the needed packages for each of the lines saying "no".
 316 (Remember to also install the *-devel packages!)
 317
 318 And remember to remove the cache with "rm -Rf .sconsign.dblite cache" so the
 319 results above get rechecked.
 320 """
 321         Exit( 1 )
 322
 323     # Check for C99 lrint() and lrintf() functions used to convert from
 324     # float to integer more efficiently via float_cast.h.  If not
 325     # present the standard slower methods will be used instead.  This
 326     # might not be the best way of testing for these but it's the only
 327     # way which seems to work properly.  CheckFunc() fails due to
 328     # argument count problems.
 329     if env.has_key( 'CFLAGS' ):
 330         oldcf = env['CFLAGS']
 331     else:
 332         oldcf = ""
 333     oldcf = env.Append(CFLAGS = '-std=c99')
 334     if conf.CheckLibWithHeader( "m", "math.h", "c", "lrint(3.2);" ):
 335         HAVE_LRINT = 1
 336     else:
 337         HAVE_LRINT = 0
 338     if conf.CheckLibWithHeader( "m", "math.h", "c", "lrintf(3.2);" ):
 339         HAVE_LRINTF = 1
 340     else:
 341         HAVE_LRINTF = 0
 342     env['HAVE_LRINT'] = HAVE_LRINT;
 343     env['HAVE_LRINTF'] = HAVE_LRINTF;
 344     env.Replace(CFLAGS=oldcf)
 345
 346 #
 347 # Optional checks follow:
 348 #
 349
 350 # PyQT checks
 351 build_mixer = False
 352 if conf.CheckForApp( 'which pyuic4' ) and conf.CheckForPyModule( 'dbus' ) and conf.CheckForPyModule( 'PyQt4' ) and conf.CheckForPyModule( 'dbus.mainloop.qt' ):
 353     env['PYUIC4'] = True
 354     build_mixer = True
 355
 356 if conf.CheckForApp( 'xdg-desktop-menu --help' ):
 357     env['XDG_TOOLS'] = True
 358 else:
 359     print """
 360 I couldn't find the program 'xdg-desktop-menu'. Together with xdg-icon-resource
 361 this is needed to add the fancy entry to your menu. But if the mixer will be
 362 installed, you can start it by executing "ffado-mixer".
 363 """
 364
 365 if not build_mixer and not env.GetOption('clean'):
 366     print """
 367 I couldn't find all the prerequisites ('pyuic4' and the python-modules 'dbus'
 368 and 'PyQt4', the packages could be named like dbus-python and PyQt) to build the
 369 mixer.
 370 Therefor the qt4 mixer will not get installed.
 371 """
 372
 373 #
 374 # Optional pkg-config
 375 #
 376 pkgs = {
 377     'alsa': '0',
 378     'dbus-1': '1.0',
 379     'dbus-c++-1' : '0',
 380     }
 381 for pkg in pkgs:
 382     name2 = pkg.replace("+","").replace(".","").replace("-","").upper()
 383     env['%s_FLAGS' % name2] = conf.GetPKGFlags( pkg, pkgs[pkg] )
 384
 385 if not env['DBUS1_FLAGS'] or not env['DBUSC1_FLAGS'] or not conf.CheckForApp('which dbusxx-xml2cpp'):
 386     env['DBUS1_FLAGS'] = ""
 387     env['DBUSC1_FLAGS'] = ""
 388     print """
 389 One of the dbus-headers, the dbus-c++-headers and/or the application
 390 'dbusxx-xml2cpp' where not found. The dbus-server for ffado will therefore not
 391 be built.
 392 """
 393 else:
 394     # Get the directory where dbus stores the service-files
 395     env['dbus_service_dir'] = conf.GetPKGVariable( 'dbus-1', 'session_bus_services_dir' ).strip()
 396     # this is required to indicate that the DBUS version we use has support
 397     # for platform dependent threading init functions
 398     # this is true for DBUS >= 0.96 or so. Since we require >= 1.0 it is
 399     # always true
 400     env['DBUS1_FLAGS'] += " -DDBUS_HAS_THREADS_INIT_DEFAULT"
 401
 402
 403 config_guess = conf.ConfigGuess()
 404
 405 env = conf.Finish()
 406
 407 if env['DEBUG']:
 408     print "Doing a DEBUG build"
 409     env.MergeFlags( "-DDEBUG -Wall -g" )
 410 else:
 411     env.MergeFlags( "-O2 -DNDEBUG" )
 412
 413 if env['PROFILE']:
 414     print "Doing a PROFILE build"
 415     env.MergeFlags( "-Wall -g" )
 416
 417 if env['PEDANTIC']:
 418     env.MergeFlags( "-Werror" )
 419
 420
 421 if env['ENABLE_ALL']:
 422     env['ENABLE_BEBOB'] = True
 423     env['ENABLE_FIREWORKS'] = True
 424     env['ENABLE_OXFORD'] = True
 425     env['ENABLE_MOTU'] = True
 426     env['ENABLE_DICE'] = True
 427     env['ENABLE_METRIC_HALO'] = True
 428     env['ENABLE_RME'] = True
 429     env['ENABLE_DIGIDESIGN'] = True
 430     env['ENABLE_BOUNCE'] = True
 431
 432
 433 env['BUILD_STATIC_LIB'] = False
 434 if env['BUILD_STATIC_TOOLS']:
 435     print "Building static versions of the tools..."
 436     env['BUILD_STATIC_LIB'] = True
 437
 438 env['build_base']="#/"
 439
 440 #
 441 # Get the DESTDIR (if wanted) from the commandline
 442 #
 443 env.destdir = ARGUMENTS.get( 'DESTDIR', "" )
 444
 445 #
 446 # Uppercase variables are for usage in code, lowercase versions for usage in
 447 # scons-files for installing.
 448 #
 449 env['BINDIR'] = Template( env['BINDIR'] ).safe_substitute( env )
 450 env['LIBDIR'] = Template( env['LIBDIR'] ).safe_substitute( env )
 451 env['INCLUDEDIR'] = Template( env['INCLUDEDIR'] ).safe_substitute( env )
 452 env['SHAREDIR'] = Template( env['SHAREDIR'] ).safe_substitute( env )
 453 env['UDEVDIR'] = Template( env['UDEVDIR'] ).safe_substitute( env )
 454 env['prefix'] = Template( env.destdir + env['PREFIX'] ).safe_substitute( env )
 455 env['bindir'] = Template( env.destdir + env['BINDIR'] ).safe_substitute( env )
 456 env['libdir'] = Template( env.destdir + env['LIBDIR'] ).safe_substitute( env )
 457 env['includedir'] = Template( env.destdir + env['INCLUDEDIR'] ).safe_substitute( env )
 458 env['sharedir'] = Template( env.destdir + env['SHAREDIR'] ).safe_substitute( env )
 459 env['mandir'] = Template( env.destdir + env['MANDIR'] ).safe_substitute( env )
 460 env['pypkgdir'] = Template( env.destdir + env['PYPKGDIR'] ).safe_substitute( env )
 461 env['udevdir'] = Template( env.destdir + env['UDEVDIR'] ).safe_substitute( env )
 462 env['PYPKGDIR'] = Template( env['PYPKGDIR'] ).safe_substitute( env )
 463
 464 env.Command( target=env['sharedir'], source="", action=Mkdir( env['sharedir'] ) )
 465
 466 env.Alias( "install", env['libdir'] )
 467 env.Alias( "install", env['includedir'] )
 468 env.Alias( "install", env['sharedir'] )
 469 env.Alias( "install", env['bindir'] )
 470 env.Alias( "install", env['mandir'] )
 471 if build_mixer:
 472     env.Alias( "install", env['pypkgdir'] )
 473
 474 #
 475 # shamelessly copied from the Ardour scons file
 476 #
 477
 478 opt_flags = []
 479 env['USE_SSE'] = 0
 480
 481 # guess at the platform, used to define compiler flags
 482
 483 config_cpu = 0
 484 config_arch = 1
 485 config_kernel = 2
 486 config_os = 3
 487 config = config_guess.split ("-")
 488
 489 needs_fPIC = False
 490
 491 # Autodetect
 492 if env['DIST_TARGET'] == 'auto':
 493     if re.search ("x86_64", config[config_cpu]) != None:
 494         env['DIST_TARGET'] = 'x86_64'
 495     elif re.search("i[0-5]86", config[config_cpu]) != None:
 496         env['DIST_TARGET'] = 'i386'
 497     elif re.search("i686", config[config_cpu]) != None:
 498         env['DIST_TARGET'] = 'i686'
 499     elif re.search("powerpc64", config[config_cpu]) != None:
 500         env['DIST_TARGET'] = 'powerpc64'
 501     elif re.search("powerpc", config[config_cpu]) != None:
 502         env['DIST_TARGET'] = 'powerpc'
 503     else:
 504         env['DIST_TARGET'] = config[config_cpu]
 505     print "Detected DIST_TARGET = " + env['DIST_TARGET']
 506
 507 if ((re.search ("i[0-9]86", config[config_cpu]) != None) or (re.search ("x86_64", config[config_cpu]) != None) or (re.search ("powerpc", config[config_cpu]) != None)):
 508
 509     build_host_supports_sse = 0
 510     build_host_supports_sse2 = 0
 511     build_host_supports_sse3 = 0
 512
 513     if config[config_kernel] == 'linux' :
 514
 515         if (env['DIST_TARGET'] == 'i686') or (env['DIST_TARGET'] == 'x86_64'):
 516
 517             flag_line = os.popen ("cat /proc/cpuinfo | grep '^flags'").read()[:-1]
 518             x86_flags = flag_line.split (": ")[1:][0].split ()
 519
 520             if "mmx" in x86_flags:
 521                 opt_flags.append ("-mmmx")
 522             if "sse" in x86_flags:
 523                 build_host_supports_sse = 1
 524             if "sse2" in x86_flags:
 525                 build_host_supports_sse2 = 1
 526             #if "sse3" in x86_flags:
 527                 #build_host_supports_sse3 = 1
 528             if "3dnow" in x86_flags:
 529                 opt_flags.append ("-m3dnow")
 530
 531             if config[config_cpu] == "i586":
 532                 opt_flags.append ("-march=i586")
 533             elif config[config_cpu] == "i686":
 534                 opt_flags.append ("-march=i686")
 535
 536         elif (env['DIST_TARGET'] == 'powerpc') or (env['DIST_TARGET'] == 'powerpc64'):
 537
 538             cpu_line = os.popen ("cat /proc/cpuinfo | grep '^cpu'").read()[:-1]
 539
 540             ppc_type = cpu_line.split (": ")[1]
 541             if re.search ("altivec", ppc_type) != None:
 542                 opt_flags.append ("-maltivec")
 543                 opt_flags.append ("-mabi=altivec")
 544
 545             ppc_type = ppc_type.split (", ")[0]
 546             if re.match ("74[0145][0578]A?", ppc_type) != None:
 547                 opt_flags.append ("-mcpu=7400")
 548                 opt_flags.append ("-mtune=7400")
 549             elif re.match ("750", ppc_type) != None:
 550                 opt_flags.append ("-mcpu=750")
 551                 opt_flags.append ("-mtune=750")
 552             elif re.match ("PPC970", ppc_type) != None:
 553                 opt_flags.append ("-mcpu=970")
 554                 opt_flags.append ("-mtune=970")
 555             elif re.match ("Cell Broadband Engine", ppc_type) != None:
 556                 opt_flags.append ("-mcpu=cell")
 557                 opt_flags.append ("-mtune=cell")
 558
 559     if ((env['DIST_TARGET'] == 'i686') or (env['DIST_TARGET'] == 'x86_64')) \
 560        and build_host_supports_sse and env['ENABLE_OPTIMIZATIONS']:
 561         opt_flags.extend (["-msse", "-mfpmath=sse"])
 562         env['USE_SSE'] = 1
 563
 564     if ((env['DIST_TARGET'] == 'i686') or (env['DIST_TARGET'] == 'x86_64')) \
 565        and build_host_supports_sse2 and env['ENABLE_OPTIMIZATIONS']:
 566         opt_flags.extend (["-msse2"])
 567         env['USE_SSE2'] = 1
 568
 569     #if ((env['DIST_TARGET'] == 'i686') or (env['DIST_TARGET'] == 'x86_64')) \
 570        #and build_host_supports_sse2 and env['ENABLE_OPTIMIZATIONS']:
 571         #opt_flags.extend (["-msse3"])
 572         #env['USE_SSE3'] = 1
 573
 574     # build for 64-bit userland?
 575     if env['DIST_TARGET'] == "powerpc64":
 576         print "Doing a 64-bit PowerPC build"
 577         machineflags = { 'CXXFLAGS' : ['-m64'] }
 578         env.MergeFlags( machineflags )
 579     elif env['DIST_TARGET'] == "x86_64":
 580         print "Doing a 64-bit x86 build"
 581         machineflags = { 'CXXFLAGS' : ['-m64'] }
 582         env.MergeFlags( machineflags )
 583         needs_fPIC = True
 584     else:
 585         print "Doing a 32-bit build"
 586         machineflags = { 'CXXFLAGS' : ['-m32'] }
 587         env.MergeFlags( machineflags )
 588
 589 if needs_fPIC or ( env.has_key('COMPILE_FLAGS') and '-fPIC' in env['COMPILE_FLAGS'] ):
 590     env.MergeFlags( "-fPIC" )
 591
 592 # end of processor-specific section
 593 if env['ENABLE_OPTIMIZATIONS']:
 594     opt_flags.extend (["-fomit-frame-pointer","-ffast-math","-funroll-loops"])
 595     env.MergeFlags( opt_flags )
 596     print "Doing an optimized build..."
 597
 598 env['REVISION'] = os.popen('svnversion .').read()[:-1]
 599 # This may be as simple as '89' or as complex as '4123:4184M'.
 600 # We'll just use the last bit.
 601 env['REVISION'] = env['REVISION'].split(':')[-1]
 602
 603 # try to circumvent localized versions
 604 if len(env['REVISION']) >= 5 and env['REVISION'][0:6] == 'export':
 605     env['REVISION'] = ''
 606
 607 # avoid the 1.999.41- type of version for exported versions
 608 if env['REVISION'] != '':
 609         env['REVISIONSTRING'] = '-' + env['REVISION']
 610 else:
 611         env['REVISIONSTRING'] = ''
 612
 613 env['FFADO_API_VERSION'] = FFADO_API_VERSION
 614
 615 env['PACKAGE'] = "libffado"
 616 env['VERSION'] = FFADO_VERSION
 617 env['LIBVERSION'] = "1.0.0"
 618
 619 env['CONFIGDIR'] = "~/.ffado"
 620 env['CACHEDIR'] = "~/.ffado"
 621
 622 env['USER_CONFIG_FILE'] = env['CONFIGDIR'] + "/configuration"
 623 env['SYSTEM_CONFIG_FILE'] = env['SHAREDIR'] + "/configuration"
 624
 625 env['REGISTRATION_URL'] = "http://ffado.org/deviceregistration/register.php?action=register"
 626
 627 #
 628 # To have the top_srcdir as the doxygen-script is used from auto*
 629 #
 630 env['top_srcdir'] = env.Dir( "." ).abspath
 631
 632 #
 633 # Start building
 634 #
 635 env.ScanReplace( "config.h.in" )
 636 env.ScanReplace( "config_debug.h.in" )
 637 env.ScanReplace( "version.h.in" )
 638
 639 # ensure that the config.h is updated
 640 env.Depends( "config.h", "SConstruct" )
 641 env.Depends( "config.h", 'cache/options.cache' )
 642
 643 # update version.h whenever the version or SVN revision changes
 644 env.Depends( "version.h", env.Value(env['REVISION']))
 645 env.Depends( "version.h", env.Value(env['VERSION']))
 646
 647 env.Depends( "libffado.pc", "SConstruct" )
 648 pkgconfig = env.ScanReplace( "libffado.pc.in" )
 649 env.Install( env['libdir'] + '/pkgconfig', pkgconfig )
 650
 651 env.Install( env['sharedir'], 'configuration' )
 652
 653 subdirs=['src','libffado','support','doc']
 654 if env['BUILD_TESTS']:
 655     subdirs.append('tests')
 656
 657 env.SConscript( dirs=subdirs, exports="env" )
 658
 659 if 'debian' in COMMAND_LINE_TARGETS:
 660     env.SConscript("deb/SConscript", exports="env")
 661
 662 # By default only src is built but all is cleaned
 663 if not env.GetOption('clean'):
 664     Default( 'src' )
 665     Default( 'support' )
 666     if env['BUILD_TESTS']:
 667         Default( 'tests' )
 668
 669 #
 670 # Deal with the DESTDIR vs. xdg-tools conflict (which is basicely that the
 671 # xdg-tools can't deal with DESTDIR, so the packagers have to deal with this
 672 # their own :-/
 673 #
 674 if len(env.destdir) > 0:
 675     if not len( ARGUMENTS.get( "WILL_DEAL_WITH_XDG_MYSELF", "" ) ) > 0:
 676         print """
 677 WARNING!
 678 You are using the (packagers) option DESTDIR to install this package to a
 679 different place than the real prefix. As the xdg-tools can't cope with
 680 that, the .desktop-files are not installed by this build, you have to
 681 deal with them your own.
 682 (And you have to look into the SConstruct to learn how to disable this
 683 message.)
 684 """
 685 else:
 686
 687     def CleanAction( action ):
 688         if env.GetOption( "clean" ):
 689             env.Execute( action )
 690
 691     if env.has_key( 'XDG_TOOLS' ) and env.has_key( 'PYUIC4' ):
 692         if not env.GetOption("clean"):
 693             action = "install"
 694         else:
 695             action = "uninstall"
 696         mixerdesktopaction = env.Action( "-xdg-desktop-menu %s support/xdg/ffado.org-ffadomixer.desktop" % action )
 697         mixericonaction = env.Action( "-xdg-icon-resource %s --size 64 --novendor --context apps support/xdg/hi64-apps-ffado.png ffado" % action )
 698         env.Command( "__xdgstuff1", None, mixerdesktopaction )
 699         env.Command( "__xdgstuff2", None, mixericonaction )
 700         env.Alias( "install", ["__xdgstuff1", "__xdgstuff2" ] )
 701         CleanAction( mixerdesktopaction )
 702         CleanAction( mixericonaction )
 703
 704 #
 705 # Create a tags-file for easier emacs/vim-source-browsing
 706 #  I don't know if the dependency is right...
 707 #
 708 findcommand = "find . \( -path \"*.h\" -o -path \"*.cpp\" -o -path \"*.c\" \) \! -path \"*.svn*\" \! -path \"./doc*\" \! -path \"./cache*\""
 709 env.Command( "tags", "", findcommand + " |xargs ctags" )
 710 env.Command( "TAGS", "", findcommand + " |xargs etags" )
 711 env.AlwaysBuild( "tags", "TAGS" )
 712 if 'NoCache' in dir(env):
 713     env.NoCache( "tags", "TAGS" )
 714
 715 # Another convinience target
 716 if env.GetOption( "clean" ):
 717     env.Execute( "rm cache/objects -Rf" )
 718
 719 #
 720 # vim: ts=4 sw=4 et