Ichthyostega
d10380d124
note: current SCons development is targetting 2.0, current stable is 1.3, which is included in Squeeze even Debian/Lenny includes 1.0.
104 lines
3.6 KiB
Python
104 lines
3.6 KiB
Python
# -*- python -*-
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##
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## LumieraEnvironment.py - custom SCons Environment
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##
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# Copyright (C) Lumiera.org
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# 2008, Hermann Vosseler <Ichthyostega@web.de>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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#####################################################################
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import SCons
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import SCons.SConf
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from SCons.Environment import Environment
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from Buildhelper import *
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class LumieraEnvironment(Environment):
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""" Custom SCons build environment for Lumiera
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This allows us to carry structured config data without
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using global vars. Idea inspired by Ardour.
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"""
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def __init__(self,*args,**kw):
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Environment.__init__ (self,*args,**kw)
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self.libInfo = {}
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def Configure (self, *args, **kw):
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kw['env'] = self
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return apply(LumieraConfigContext, args, kw)
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def mergeConf (self,other):
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""" extract the library/compiler flags from other Environment.
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Optionally accepts a list or just sting(s) representing keys
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in our own libInfo Dictionary
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"""
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if isinstance(other, list):
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for elm in other:
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self.mergeConf(elm)
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elif isinstance(other, str):
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if other in self.libInfo:
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self.mergeConf(self.libInfo[other])
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else:
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self.Append (LIBS = other.get ('LIBS',[]))
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self.Append (LIBPATH = other.get ('LIBPATH', []))
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self.Append (CPPPATH = other.get('CPPPATH', []))
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self.Append (LINKFLAGS = other.get('LINKFLAGS', []))
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return self
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def addLibInfo (self, libID, minVersion=0, alias=None):
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""" use pkg-config to create an Environment describing the lib.
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Don't add this defs to the current Environment, rather store
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them in the libInfo Dictionary.
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"""
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minVersion = str(minVersion)
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if 0 != os.system('pkg-config --print-errors --exists "%s >= %s"' % (libID,minVersion)):
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print "Problems configuring the Library %s (>= %s)" % (libID,minVersion)
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return False
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self.libInfo[libID] = libInfo = LumieraEnvironment()
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libInfo["ENV"]["PKG_CONFIG_PATH"] = os.environ.get("PKG_CONFIG_PATH")
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libInfo.ParseConfig ('pkg-config --cflags --libs '+ libID )
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if alias:
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self.libInfo[alias] = libInfo
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return libInfo
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# extending the 'Configure' functionality of SCons,
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# especially for library dependency checking
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ConfigBase = SCons.SConf.SConfBase
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class LumieraConfigContext(ConfigBase):
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""" Extends the SCons Configure context with some convenience methods
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"""
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def __init__(self, *args,**kw):
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ConfigBase.__init__(self,*args,**kw)
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def CheckPkgConfig (self, libID, minVersion=0, alias=None):
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print "Checking for library configuration: %s " % libID
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# self.Message(self,"Checking for library configuration: %s " % libID)
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return self.env.addLibInfo (libID, minVersion, alias)
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