Ichthyostega
c8196ce234
Yes, I know... Programmers absolutely LOVE to sneak-in various nifty toggles via environment. Yet this is an anti-pattern! And, by extension of that verdict, a "build interface" which relies on the implicit convention that some magical variables are set, is **not a proper interface** but a hack. Thus we abandon that bad practice and handle the build in a clean and explicit way. * the DEB-Build in `debian/rules` now invokes SCons explicitly, passing arguments * the Lumiera Build-System is FSH aware and knows the proper installation locations * the setup of the application uses a setup configuration, shipped with the package * there is no need to ''compile-in any configuration'' ** `LUMIERA_PLUGIN_PATH` is obsolete and unused since several years now ** `LUMIERA_CONFIG_PATH` was never used at all ** consequently, we also do not need `PKGLIBDIR` and `PKGDATADIR`
129 lines
4.6 KiB
Python
129 lines
4.6 KiB
Python
# coding: utf-8
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##
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## Setup.py - SCons build: setup, definitions and compiler flags
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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 EnsurePythonVersion, EnsureSConsVersion, Variables, Decider
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from LumieraEnvironment import *
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from Buildhelper import *
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import Options
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#-------------------------------------------------------Configuration
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TARGDIR = 'target'
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VERSION = '0.pre.04~rc.1'
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TOOLDIR = './admin/scons' # SCons plugins
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OPTCACHE = 'optcache'
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CUSTOPTFILE = 'custom-options'
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# these are accessible via env.path.xxxx
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buildExe = '#$TARGDIR'
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buildLib = '#$TARGDIR/modules'
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buildPlug = '#$TARGDIR/modules'
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buildIcon = '#$TARGDIR/gui/icons' # for IconResource() and IconRender()
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buildUIRes = '#$TARGDIR/gui/' # for GuiResource()
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buildConf = '#$TARGDIR/config' # for ConfigData()
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installExe = '#$DESTDIR/lib/lumiera'
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installLib = '#$DESTDIR/lib/lumiera/modules'
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installPlug = '#$DESTDIR/lib/lumiera/modules'
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installIcon = '#$DESTDIR/share/lumiera/icons'
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installUIRes = '#$DESTDIR/share/lumiera/'
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installConf = '#$DESTDIR/lib/lumiera/config'
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#-------------------------------------------------------Configuration
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buildSetup = Record(locals())
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# passed to LumieraEnvironment() -> env.path.xxxx
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def defineBuildEnvironment():
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""" create a custom build environment,
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define the basic compiler and linker flags,
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define locations in source and target tree,
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parse the commandline and pick up options
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"""
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EnsureSConsVersion(2,0)
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EnsurePythonVersion(2,6)
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Decider('MD5-timestamp') # detect changed files by timestamp, then do a MD5
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buildVars = Variables([OPTCACHE, CUSTOPTFILE])
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Options.defineCmdlineVariables(buildVars)
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env = LumieraEnvironment(buildSetup, buildVars)
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env.Replace( CPPPATH =["#src"] # used to find includes, "#" means always absolute to build-root
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, CPPDEFINES=['LUMIERA_VERSION='+VERSION ] # note: it's a list to append further defines
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, CCFLAGS='-Wall -Wextra -Wformat-security'
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, CXXFLAGS='-std=gnu++23 -Wno-enum-compare'
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, CFLAGS='-std=gnu99'
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)
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env.Append(LINKFLAGS='-Wl,--no-undefined') # require every dependency is given on link, in the right order
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env.Append(LINKFLAGS='-Wl,--as-needed') # by default only link against dependencies actually needed to resolve symbols
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handleVerboseMessages(env)
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handleNoBugSwitches(env)
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env.Append(CPPDEFINES = '_GNU_SOURCE')
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appendCppDefine(env,'DEBUG','DEBUG', 'NDEBUG')
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# appendCppDefine(env,'OPENGL','USE_OPENGL')
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appendVal(env,'ARCHFLAGS','CCFLAGS') # for both C and C++
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appendVal(env,'OPTIMIZE', 'CCFLAGS', val=' -O3')
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appendVal(env,'DEBUG', 'CCFLAGS', val=' -ggdb')
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# NOTE: could define optional copile features here....
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Options.prepareOptionsHelp(buildVars,env)
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buildVars.Save(OPTCACHE, env)
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return env
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def appendCppDefine(env,var,cppVar, elseVal=''):
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if env[var]:
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env.Append(CPPDEFINES = env.subst(cppVar) )
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elif elseVal:
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env.Append(CPPDEFINES = env.subst(elseVal))
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def appendVal(env,var,targetVar,val=None):
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if env[var]:
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env.Append( **{targetVar: env.subst(val) or env[var]})
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def handleNoBugSwitches(env):
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""" set the build level for NoBug.
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Release builds imply no DEBUG
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whereas ALPHA and BETA require DEBUG
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"""
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level = env['BUILDLEVEL']
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if level in ['ALPHA', 'BETA']:
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if not env['DEBUG']:
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print('Warning: NoBug ALPHA or BETA builds requires DEBUG=yes, switching DEBUG on!')
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env.Replace( DEBUG = 1 )
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env.Append(CPPDEFINES = 'EBUG_'+level)
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elif level == 'RELEASE':
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env.Replace( DEBUG = 0 )
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def handleVerboseMessages(env):
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""" toggle verbose build output """
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if not env['VERBOSE']:
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# SetOption('silent', True)
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env['CCCOMSTR'] = env['SHCCCOMSTR'] = " Compiling $SOURCE"
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env['CXXCOMSTR'] = env['SHCXXCOMSTR'] = " Compiling++ $SOURCE"
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env['LINKCOMSTR'] = " Linking --> $TARGET"
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env['LDMODULECOMSTR'] = " creating module [ $TARGET ]"
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