Ichthyostega
d31d4295a4
Indeed — this change set is kind of sad.
Because I still admire the design of the GAVL library,
and would love to use it for processing of raw video.
However, up to now, we never got to the point of actually
doing so. For the future, I am not sure if there remains
room to rely on lib-GAVL, since FFmpeg roughly covers
a similar ground (and a lot beyond that). And providing
a plug-in for FFmpeg is unavoidable, practically speaking.
So I still retain the nominal dependency on lib-GAVL
in the Build system (since it is still packaged in Debian).
But it is pointless to rely on this library just for an
external type-def `gavl_time_t`. We owe much to this
inspiration, but it can be expected that we'll wrap
these raw time-values into a dedicated marker type
soon, and we certainly won't be exposing any C-style
interface for time calculations in future, since
we do not want anyone to side-step the Lumiera
time handling framework in favour of working
„just with plain numbers“
NOTE: lib-GAVL hompage has moved to Github:
https://github.com/bplaum/gavl
152 lines
6.3 KiB
Python
152 lines
6.3 KiB
Python
# coding: utf-8
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##
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## Platform.py - SCons build: platform configuration and library detection
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##
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# Copyright (C)
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# 2012, Hermann Vosseler <Ichthyostega@web.de>
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#
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# **Lumiera** is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 2 of the License, or (at your
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# option) any later version. See the file COPYING for further details.
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#####################################################################
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from SCons.Script import Exit
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from Buildhelper import isCleanupOperation, isHelpRequest
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def configure(env):
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""" locate required libraries.
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setup platform specific options.
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Abort build in case of failure.
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"""
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if isCleanupOperation(env) or isHelpRequest():
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return env # skip configure in these cases
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conf = env.Configure()
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# run all configuration checks in the build environment defined thus far
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# Perform checks for prerequisites --------------------------------------------
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problems = []
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if not conf.TryAction('pkg-config --version > $TARGET')[0]:
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problems.append('We need pkg-config for including library configurations, exiting.')
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if not conf.CheckLibWithHeader('m', 'math.h','C'):
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problems.append('Did not find math.h / libm.')
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if not conf.CheckLibWithHeader('dl', 'dlfcn.h', 'C'):
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problems.append('Functions for runtime dynamic loading not available.')
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if not conf.CheckLibWithHeader('pthread', 'pthread.h', 'C'):
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problems.append('Did not find the pthread lib or pthread.h.')
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else:
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conf.env.Append(CPPFLAGS = ' -DHAVE_PTHREAD')
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conf.env.Append(CCFLAGS = ' -pthread')
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if not conf.CheckLib(symbol='clock_gettime', library='rt'): # note librt is usually installed with libc6
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problems.append('We expect the POSIX realtime extensions to be available through librt. ' +
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'Unable to use clock_gettime()')
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if conf.CheckCHeader('execinfo.h'):
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conf.env.Append(CPPFLAGS = ' -DHAVE_EXECINFO_H')
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if conf.CheckCHeader('valgrind/valgrind.h'):
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conf.env.Append(CPPFLAGS = ' -DHAVE_VALGRIND_H')
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else:
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print('Valgrind not found. The use of Valgrind is optional; building without.')
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if not conf.CheckPkgConfig('nobugmt', 201008.1):
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problems.append('Did not find NoBug [http://nobug.pipapo.org/].')
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else:
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conf.env.mergeConf('nobugmt')
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if not conf.CheckCXXHeader('memory'):
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problems.append('We rely on the C++11 smart-pointers.')
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if not conf.CheckCXXHeader('functional'):
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problems.append('We rely on the C++11 functor objects.')
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if not conf.CheckLibWithHeader('stdc++fs', 'filesystem', 'C++'):
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problems.append('We need the C++17 filesystem support.')
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if not conf.CheckCXXHeader('boost/config.hpp'):
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problems.append('We need the C++ boost-libraries.')
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else:
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if not conf.CheckCXXHeader('boost/lexical_cast.hpp'):
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problems.append('We need boost::lexical_cast')
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if not conf.CheckCXXHeader('boost/format.hpp'):
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problems.append('We need boost::format (header).')
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if not conf.CheckLibWithHeader('boost_program_options','boost/program_options.hpp','C++'):
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problems.append('We need boost::program_options (including binary lib for linking).')
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if not conf.CheckPkgConfig('gavl', '1.4'):
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problems.append('Did not find Gmerlin Audio Video Lib [https://github.com/bplaum/gavl].')
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else:
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conf.env.mergeConf('gavl')
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if not conf.CheckPkgConfig('alsa', '1.0.23'):
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problems.append('Support for ALSA sound output is required')
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if not conf.CheckPkgConfig('gtkmm-3.0', '3.10'):
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problems.append('Unable to configure the mm-bindings for GTK-3')
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if not conf.CheckPkgConfig('glibmm-2.4', '2.39'):
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problems.append('Unable to configure the mm-bindings for Glib')
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if not conf.CheckPkgConfig('sigc++-2.0', '2.2.10'):
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problems.append('Need the signal-slot-binding library SigC++2')
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if not conf.CheckPkgConfig('glib-2.0', '2.40'):
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problems.append('Need a suitable Glib version.')
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if not conf.CheckPkgConfig('gthread-2.0', '2.40'):
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problems.append('Need gthread support lib for Glib based thread handling.')
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if not conf.CheckPkgConfig('cairomm-1.0', '1.10'):
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problems.append('Unable to configure Cairo--')
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verGDL = '3.8' # lowered requirements to allow building on Ubuntu/Trusty & Mint (was originally '3.12')
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verGDLmm = '3.7.3'
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urlGDLmm = 'http://ftp.gnome.org/pub/GNOME/sources/gdlmm/'
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urlGDLmmDEB = 'http://lumiera.org/debian/'
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if not conf.CheckPkgConfig('gdl-3.0', verGDL):
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problems.append('GNOME Docking Library not found. We need at least GDL %s '
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'and suitable C++ ("mm")-bindings (GDLmm >=%s)' % (verGDL, verGDLmm))
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if not conf.CheckPkgConfig('gdlmm-3.0', verGDLmm, alias='gdl'):
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problems.append('We need the C++ bindings for GDL by Fabien Parent: GDLmm >=%s '
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'(either from GNOME %s or use the debian package from %s)' %
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(verGDLmm, urlGDLmm, urlGDLmmDEB))
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if not conf.CheckPkgConfig('librsvg-2.0', '2.30'):
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problems.append('Need rsvg Library for rendering icons.')
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if not conf.CheckCHeader(['X11/Xutil.h', 'X11/Xlib.h'],'<>'):
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problems.append('Xlib.h and Xutil.h required. Please install libx11-dev.')
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# NOTE the following dependencies where for the video displayer widget.
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# As of 11/2015 this is broken and disabled. Might be obsolete....
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if not conf.CheckPkgConfig('xv') : problems.append('Need libXv...')
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if not conf.CheckPkgConfig('x11') : problems.append('Need X-lib...') # for the xvdisplayer widget
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if not conf.CheckPkgConfig('xext'): problems.append('Need libXext.')
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# report missing dependencies
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if problems:
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print("*** unable to build due to the following problems:")
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for isue in problems:
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print(" * %s" % isue)
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print()
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print("build aborted.")
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Exit(1)
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print("** Gathered Library Info: %s" % list(conf.env.libInfo.keys()))
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# create new env containing the finished configuration
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return conf.Finish()
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