Ichthyostega
806db414dd
* Lumiera source code always was copyrighted by individual contributors * there is no entity "Lumiera.org" which holds any copyrights * Lumiera source code is provided under the GPL Version 2+ == Explanations == Lumiera as a whole is distributed under Copyleft, GNU General Public License Version 2 or above. For this to become legally effective, the ''File COPYING in the root directory is sufficient.'' The licensing header in each file is not strictly necessary, yet considered good practice; attaching a licence notice increases the likeliness that this information is retained in case someone extracts individual code files. However, it is not by the presence of some text, that legally binding licensing terms become effective; rather the fact matters that a given piece of code was provably copyrighted and published under a license. Even reformatting the code, renaming some variables or deleting parts of the code will not alter this legal situation, but rather creates a derivative work, which is likewise covered by the GPL! The most relevant information in the file header is the notice regarding the time of the first individual copyright claim. By virtue of this initial copyright, the first author is entitled to choose the terms of licensing. All further modifications are permitted and covered by the License. The specific wording or format of the copyright header is not legally relevant, as long as the intention to publish under the GPL remains clear. The extended wording was based on a recommendation by the FSF. It can be shortened, because the full terms of the license are provided alongside the distribution, in the file COPYING.
156 lines
6.7 KiB
Python
156 lines
6.7 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.CheckLibWithHeader('boost_system','boost/system/error_code.hpp','C++'):
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problems.append('We need the boost::system support library (including binary lib).')
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if not conf.CheckLibWithHeader('boost_filesystem','boost/filesystem.hpp','C++'):
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problems.append('We need the boost::filesystem lib (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 [http://gmerlin.sourceforge.net/gavl.html].')
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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" % 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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