# -*- python -*-
-import sys, glob, os.path, datetime, pwd, time, fnmatch, string
-sys.path.append(Dir('#/senfscons').abspath)
-sys.path.append(Dir('#/doclib').abspath)
-import SENFSCons
+import sys, os.path
+import SENFSCons, senfutil
###########################################################################
+# Load utilities and setup libraries and configure build
-# This hack is needed for SCons V 0.96.1 compatibility. In current SCons versions
-# we can just use 'env.AlwaysBuild(env.Alias(target), [], action)'
-def PhonyTarget(env, target, action, sources=[]):
- env.AlwaysBuild(env.Command(target + '.phony', [ 'SConstruct' ] + sources, env.Action(action)))
- env.Alias(target, target + '.phony')
-
-def updateRevision(target, source, env):
- rev = env['ENV']['REVISION'][1:]
- if ':' in rev:
- print
- print "Working copy not clean. Run 'svn update'"
- print
- return 1
- if 'm' in rev and not ARGUMENTS.get('force_deb'):
- print
- print "Working copy contains local changes. Commit first"
- print
- return 1
- if 's' in rev:
- rev = rev[:-1]
- if 'm' in rev:
- rev = rev[:-1]
- url = None
- for line in os.popen("svn info"):
- elts=line.split(':',1)
- if elts[0] == 'URL':
- url = elts[1].strip()
- version = None
- if '/tags/' in url:
- version = url.rsplit('/',1)[-1].split('_',1)[0]
- if version[0] not in string.digits:
- version = None
- if version is None:
- version = '1:0r%s' % rev
- changelog = file('debian/changelog.template').read() % {
- 'version': version,
- 'rev': rev,
- 'user': pwd.getpwuid(os.getuid()).pw_gecos.split(',')[0].strip(),
- 'date': time.strftime("%a, %d %b %Y %H:%M:%S +0000", time.gmtime()) }
- file('debian/changelog','w').write(changelog)
-
-def nonemptyFile(f):
- try: return os.stat(f).st_size > 0
- except OSError: return False
-
-def checkLocalConf(target, source, env):
- if [ True for f in env['LOCAL_CONFIG_FILES'] if nonemptyFile(f) ]:
- print
- print "You have made local modifications to one of the following local configuration"
- print "files:"
- for f in env['LOCAL_CONFIG_FILES']:
- print " ",f
- print
- print "Building a debian package would remove those files."
- print
- print "To continue, remove the offending file(s) and try again. Alternatively,"
- print "build a source package using 'scons debsrc' and may then build debian"
- print "binary packages from this source-package without disrupting your local"
- print "configuration."
- print
- return 1
+env = Environment()
-###########################################################################
-# Load utilities and setup libraries and configure build
+env.Decider('MD5-timestamp')
+env.EnsureSConsVersion(1,2)
-SENFSCons.UseBoost()
-SENFSCons.UseSTLPort()
-env = SENFSCons.MakeEnvironment()
+# Load all the local SCons tools
+senfutil.loadTools(env)
env.Help("""
Additional top-level build targets:
-prepare Create all source files not part of the repository
-all_tests Build and run unit tests for all modules
-all_docs Build documentation for all modules
-all Build everything
-install_all Install SENF into $PREFIX
-deb Build debian source and binary package
-debsrc Build debian source package
-debbin Build debian binary package
-linklint Check links of doxygen documentation with 'linklint'
-fixlinks Fix broken links in doxygen documentation
-valgrind Run all tests under valgrind/memcheck
-""")
+prepare Create all target files not part of the repository
+default Build all default targets (like calling scons with no arguments)
+examples Build all examples
+all_tests Build and run unit tests for all modules
+test_changes Build tests only for files with local changes (queries svn or git)
+all_docs Build documentation for all modules
+all Build everything
+install_all Install SENF into $$PREFIX
+deb Build debian source and binary package
+debsrc Build debian source package
+debbin Build debian binary package
+linklint Check links of doxygen documentation with 'linklint'
+fixlinks Fix broken links in doxygen documentation
+all_valgrinds Run all tests under valgrind/memcheck
+lcov Generate test coverage output in doc/lcov and lcov.info
-if os.environ.get('debian_build'):
- rev = os.popen("dpkg-parsechangelog | awk '/^Version:/{print $2}'").read().strip()
-else:
- rev = 'r' + os.popen("svnversion").read().strip().lower()
+The following additional targets may be called within subdirectories, either
+using '$ scons -u <target>' or '$ scons <directory>/<target>:
-logname = os.environ.get('LOGNAME')
-if not logname:
- logname = pwd.getpwuid(os.getuid()).pw_name
+test Build and run unit test for this module
+doc Build the documentation of this module
+valgrind Run the unit test of this module under valgrind
-def dpkgIgnoredFilesOpts(target, source, env, for_signature):
- return [ '-I%s' % os.path.split(f)[1] for f in env.subst('$DPKG_IGNORED_FILES').split() ]
+When cleaning up using '$ scons -c <target>', some targets are handled specially:
-# Options used to debug inlining:
-#
-# INLINE_OPTS = [ '-finline-limit=20000', '--param','large-function-growth=10000',
-# '--param', 'large-function-insns=10000', '--param','inline-unit-growth=10000',
-# '-fvisibility-inlines-hidden', '-fno-inline-functions', '-Winline' ]
-#
-# BEWARE: You need lots of ram to compile with these settings (approx 1G)
-#
+all Remove everything generated by the build including temporary and
+ backup files
-INLINE_OPTS = [ '-finline-limit=5000' ]
+some Remove all files not needed for building like temporary or backup
+ files. This target is only valid when called as clean target.
-env.Append(
- CPPPATH = [ '#/include' ],
- CXXFLAGS = [ '-Wall', '-Woverloaded-virtual', '-Wno-long-long' ] + INLINE_OPTS,
- LIBS = [ 'rt', '$BOOSTREGEXLIB', '$BOOSTIOSTREAMSLIB', '$BOOSTSIGNALSLIB',
- '$BOOSTFSLIB' ],
- TEST_EXTRA_LIBS = [ ],
- DOXY_XREF_TYPES = [ 'bug', 'fixme', 'todo', 'idea' ],
- DOXY_HTML_XSL = '#/doclib/html-munge.xsl',
- ENV = { 'TODAY' : str(datetime.date.today()),
- 'REVISION' : rev,
- 'LOGNAME' : logname, # needed by the debian build scripts
- 'CONCURRENCY_LEVEL' : env.GetOption('num_jobs') or "1",
- 'SCONS' : 1,
- 'PATH' : os.environ.get('PATH'),
- 'TEXINPUTS' : os.environ.get('TEXINPUTS'),
- },
- LOCAL_CONFIG_FILES = [ 'Doxyfile.local', 'SConfig', 'local_config.hh' ],
- DPKG_IGNORED_FILES = [ '$LOCAL_CONFIG_FILES', '.svn', '_templates' ],
- DPKG_IGNORED_FILES_OPTS = dpkgIgnoredFilesOpts,
- CLEAN_PATTERNS = [ '*~', '#*#', '*.pyc', 'semantic.cache', '.sconsign', '.sconsign.dblite' ],
- BUILDPACKAGE_COMMAND = "dpkg-buildpackage -us -uc -rfakeroot $DPKG_IGNORED_FILES_OPTS",
- TOP_INCLUDES = [ 'Packets', 'PPI', 'Scheduler', 'Socket', 'Utils', 'Console',
- 'config.hh', 'local_config.hh' ],
-)
+You may execute targets on a remote host via ssh (if the directory layout is the
+same) by calling
+
+ $ scons <target>@[<user>@]<host>
-def parseLogOption(value):
- stream, area, level = ( x.strip() for x in value.strip().split('|') )
- if stream : stream = ''.join('(%s)' % x for x in stream.split('::') )
- else : stream = '(_)'
- if area : area = ''.join( '(%s)' % x for x in area.split('::') )
- else : area = '(_)'
- return '(( %s,%s,%s ))' % (stream,area,level)
+Some more elaborate unit tests may be enabled by setting appropritate variables
+in the shell (unix) environment
-def expandLogOption(target, source, env, for_signature):
- return ' '.join( parseLogOption(x) for x in env.subst('$LOGLEVELS').split() )
+SENF_TIMING_CRITICAL_TESTS
+ Enables unit tests which depend on timing measurements. These
+ unit tests should only be run on a single core and an otherwise
+ idle system.
-if env.subst('$LOGLEVELS'):
- env.Append( expandLogOption=expandLogOption )
- env.Append( CPPDEFINES = { 'SENF_LOG_CONF': '$expandLogOption' } )
+SENF_WLAN_TEST_INTERFACE
+ WLAN interface to use for testing. The interface should not be
+ actively in use.
+SENF_ETH_TEST_INTERFACE
+ Ethernet interface to use for testing. The interface should not
+ be actively in use.
+
+Some unit tests will only run when executed to 'root'.
+""")
+
+env.Replace(
+ expandLogOption = senfutil.expandLogOption,
+ CXXFLAGS_ = env.BuildTypeOptions('CXXFLAGS'),
+ CPPDEFINES_ = env.BuildTypeOptions('CPPDEFINES'),
+ LINKFLAGS_ = env.BuildTypeOptions('LINKFLAGS'),
+)
+env.Append(
+ IMPORT_ENV = [ 'PATH', 'HOME', 'SSH_*', 'SENF*', 'CCACHE_*', 'DISTCC_*' ],
+
+ CLEAN_SOME_PATTERNS = [ '*~', '#*#', '*.pyc', 'semantic.cache' ],
+ CLEAN_PATTERNS = [ '.sconsign*', '.sconf_temp' ],
+
+ CPPPATH = [ '#', '$BUILDDIR',
+ '${NEED_BOOST_EXT and "#/boost_ext" or None}' ],
+ LIBPATH = [ '$LOCALLIBDIR' ],
+ LIBS = [ '$EXTRA_LIBS' ],
+ EXTRA_LIBS = [ 'rt' ],
+ TEST_EXTRA_LIBS = [ ],
+ VALGRINDARGS = [ '--num-callers=50' ],
+
+ CPP_INCLUDE_EXTENSIONS = [ '.h', '.hh', '.ih', '.mpp', '.cci', '.ct', '.cti' ],
+ CPP_EXCLUDE_EXTENSIONS = [ '.test.hh' ],
+
+ # INLINE_OPTS_DEBUG are insane. Only useful for inline debugging. Need at least 1G free RAM
+ INLINE_OPTS_DEBUG = [ '-finline-limit=20000', '-fvisibility-inlines-hidden',
+ '-fno-inline-functions', '-Winline'
+ '--param','large-function-growth=10000',
+ '--param', 'large-function-insns=10000',
+ '--param','inline-unit-growth=10000' ],
+ INLINE_OPTS_NORMAL = [ '-finline-limit=5000', '--param', 'inline-unit-growth=60' ],
+ INLINE_OPTS = [ '$INLINE_OPTS_NORMAL' ],
+ CXXFLAGS = [ '-Wall', '-Woverloaded-virtual', '-Wno-long-long', '$INLINE_OPTS',
+ '-pipe', '$CXXFLAGS_', '-fno-strict-aliasing',
+ "${profile and '-pg' or None}" ],
+ CXXFLAGS_final = [ '-O3' ],
+ CXXFLAGS_normal = [ '-O2', '-g' ],
+ CXXFLAGS_debug = [ '-O0', '-g' ],
+
+ CPPDEFINES = [ '$expandLogOption', '$CPPDEFINES_' ],
+ CPPDEFINES_final = [ 'SENF_PPI_NOTRACE', 'BOOST_NO_MT', 'NDEBUG', 'BOOST_DISABLE_ASSERTS' ],
+ CPPDEFINES_normal = [ 'SENF_DEBUG' ],
+ CPPDEFINES_debug = [ '$CPPDEFINES_normal' ],
+
+ LINKFLAGS = [ '-rdynamic', '$LINKFLAGS_', "${profile and '-pg' or None}" ],
+ LINKFLAGS_final = [ ],
+ LINKFLAGS_normal = [ '-Wl,-S' ],
+ LINKFLAGS_debug = [ '-g' ],
+)
env.SetDefault(
- LIBSENF = "senf"
+ PREFIX = '#/dist',
+ LIBINSTALLDIR = '$PREFIX${syslayout and "/lib" or ""}',
+ BININSTALLDIR = '$PREFIX${syslayout and "/bin" or ""}',
+ INCLUDEINSTALLDIR = '$PREFIX${syslayout and "/include" or ""}',
+ CONFINSTALLDIR = '${syslayout and "$LIBINSTALLDIR/senf" or "$PREFIX"}',
+ OBJINSTALLDIR = '$CONFINSTALLDIR',
+ DOCINSTALLDIR = '$PREFIX${syslayout and "/share/doc/senf" or "/manual"}',
+ SCONSINSTALLDIR = '$CONFINSTALLDIR/site_scons',
+
+ BUILDDIR = '${FLAVOR and "#/build/$FLAVOR" or "#"}',
+ LOCALLIBDIR = '$BUILDDIR',
+
+ LIBSENF = "senf",
+ LCOV = "lcov",
+ GENHTML = "genhtml",
+ VALGRIND = "valgrind",
+ SCONSBIN = env.File("#/tools/scons"),
+ SCONSARGS = ([ '-Q', '-j$CONCURRENCY_LEVEL' ] +
+ [ '%s=%s' % (k,v) for k,v in ARGLIST ]),
+ SCONS = "@$SCONSBIN $SCONSARGS",
+ CONCURRENCY_LEVEL = env.GetOption('num_jobs') or 1,
+ TOPDIR = env.Dir('#').abspath,
+ LIBADDSUFFIX = '${FLAVOR and "_$FLAVOR" or ""}',
+ OBJADDSUFFIX = '${LIBADDSUFFIX}',
+ FLAVOR = '',
+
+ PARSEFLAGS = '',
+)
+
+# Set variables from command line
+senfutil.parseArguments(
+ env,
+ BoolVariable('final', 'Build final (optimized) build', False),
+ BoolVariable('debug', 'Link in debug symbols', False),
+ BoolVariable('profile', 'compile and link with the profiling enabled option', False),
+ BoolVariable('syslayout', 'Install in to system layout directories (lib/, include/ etc)', False),
+ BoolVariable('sparse_tests', 'Link tests against object files and not the senf lib', False)
)
+# Add UNIX env vars matching IMPORT_ENV patterns into the execution environment
+senfutil.importProcessEnv(env)
+
+# Handle 'test_changes'
+if 'test_changes' in COMMAND_LINE_TARGETS and not env.has_key('only_tests'):
+ import SparseTestHack
+ env['only_tests'] = " ".join(x.abspath for x in SparseTestHack.findSCMChanges(env))
+
+if env.has_key('only_tests') : env['sparse_tests'] = True
+
Export('env')
+###########################################################################
+# Configure
+
+SConscript('SConfigure')
+
+# Only add this here, after all configure checks have run
+
+env.Append(LIBS = '$LIBSENF$LIBADDSUFFIX',
+ EXTRA_LIBS = [ '$BOOSTREGEXLIB', '$BOOSTIOSTREAMSLIB', '$BOOSTSIGNALSLIB',
+ '$BOOSTFSLIB' ])
+
+###########################################################################
+
# Create Doxyfile.local otherwise doxygen will barf on this non-existent file
# Create it even when cleaning, to silence the doxygen builder warnings
-if not os.path.exists("Doxyfile.local"):
- Execute(Touch("Doxyfile.local"))
+if not os.path.exists("doclib/Doxyfile.local"):
+ Execute(Touch("doclib/Doxyfile.local"))
-# Create local_config.h
-if not env.GetOption('clean') and not os.path.exists("local_config.hh"):
- Execute(Touch("local_config.hh"))
+if not env.GetOption('clean') and not os.path.exists(".prepare-stamp") \
+ and not os.environ.get("SCONS") and COMMAND_LINE_TARGETS != [ 'prepare' ]:
+ env.Execute([ "$SCONS prepare" ])
+
+# Load SConscripts
+
+SConscriptChdir(0)
+SConscript("debian/SConscript")
+SConscriptChdir(1)
+if os.path.exists('SConscript.local') : SConscript('SConscript.local')
+if env['sparse_tests']:
+ import SparseTestHack
+ SparseTestHack.setup(env)
+if env.subst('$BUILDDIR') == '#':
+ SConscript("SConscript")
+else:
+ SConscript("SConscript", variant_dir=env.subst('$BUILDDIR'), src_dir='#', duplicate=False)
+SConscript("Examples/SConscript")
+SConscript("HowTos/SConscript")
+SConscript("doclib/SConscript")
+if env['sparse_tests']:
+ verbose = 'test_changes' in COMMAND_LINE_TARGETS
+ SparseTestHack.build(env, verbose, verbose)
###########################################################################
# Define build targets
-# Before defining any targets, check wether this is the first build in
-# pristine directory tree. If so, call 'scons prepare' so the dependencies
-# created later are correct
+#### install_all, default, all_tests, all
+env.Install('${SCONSINSTALLDIR}', [ 'site_scons/__init__.py',
+ 'site_scons/senfutil.py',
+ 'site_scons/yaptu.py' ])
+env.InstallDir('${SCONSINSTALLDIR}', [ 'site_scons/site_tools', 'site_scons/lib' ],
+ FILTER_SUFFIXES=[ '','.css','.pl','.py','.sh','.sty','.xml','.xsl','.yap' ])
+env.Install('${INCLUDEINSTALLDIR}', 'boost_ext')
+env.Install('${INCLUDEINSTALLDIR}/senf', 'senf/boost_intrusive')
+
+env.Alias('install_all', env.FindInstalledFiles())
+env.Alias('default', DEFAULT_TARGETS)
+env.Alias('all_tests', env.FindAllBoostUnitTests())
+env.Alias('test_changes', 'all_tests')
+env.Alias('all', [ 'default', 'all_tests', 'examples', 'all_docs' ])
+
+#### prepare and -c some
+env.PhonyTarget('prepare', [], [])
+env.PhonyTarget('some', [], [])
+
+#### valgrind
+env.Alias('all_valgrinds')
+if env.get('HAVE_VALGRIND'):
+ for test in env.FindAllBoostUnitTests():
+ stamp = env.Command(test[0].dir.File('.test-valgrind.stamp'),
+ [ test[0].dir.File('.test.bin'), 'tools/valgrind.sup' ],
+ [ """$VALGRIND --tool=memcheck
+ --error-exitcode=1
+ --suppressions=${SOURCES[1]}
+ $VALGRINDARGS
+ ${SOURCES[0]} --result_code=no $BOOSTTESTARGS
+ """.replace("\n"," "),
+ Touch("$TARGET") ])
+ alias = env.Command(test[0].dir.File('valgrind'), stamp, [ env.NopAction() ])
+ env.Alias('all_valgrinds', alias)
+
+### lcov
+env.PhonyTarget('lcov', [], [
+ '$SCONS'
+ ' debug=1'
+ ' BUILDDIR="#/build/lcov"'
+ ' CCFLAGS+="-fprofile-arcs -ftest-coverage"'
+ ' LIBS+="gcov"'
+ ' all_tests',
+ '$LCOV'
+ ' --follow'
+ ' --directory $TOPDIR/build/lcov/senf'
+ ' --capture'
+ ' --output-file /tmp/senf_lcov.info'
+ ' --base-directory $TOPDIR',
+ '$LCOV'
+ ' --output-file lcov.info'
+ ' --remove /tmp/senf_lcov.info "*/include/*" "*/boost/*" "*.test.*"',
+ '$GENHTML'
+ ' --output-directory doc/lcov'
+ ' --title all_tests lcov.info',
+ 'rm /tmp/senf_lcov.info' ])
+senfutil.CleanGlob(env, ['lcov','some','all'], [ '*.gcno', '*.gcda', '*.gcov' ])
+env.Clean(['lcov', 'all'], [ 'lcov.info', env.Dir('doc/lcov'), env.Dir('build/lcov') ])
+
+#### clean
+
+env.Clean('all', ('.prepare-stamp', env.Dir('dist'), env.Dir('build')))
+
+senfutil.CleanGlob(env, 'all', '$CLEAN_PATTERNS')
+senfutil.CleanGlob(env, ['some', 'all'], '$CLEAN_SOME_PATTERNS')
+
+if env.GetOption('clean') and 'all' in BUILD_TARGETS:
+ env.Depends('all', ('lcov', 'all_valgrinds'))
+ # Disable writing to the deleted .sconsign file
+ import SCons.SConsign
+ SCons.SConsign.write = lambda : None
-if not env.GetOption('clean') and not os.path.exists(".prepare-stamp") \
- and not os.environ.get("SCONS") and COMMAND_LINE_TARGETS != [ 'prepare' ]:
- env.Execute([ "scons prepare" ])
-
-env.Clean('all', '.prepare-stamp')
-
-# Not nice, but until we get to fixing the dependency jungle
-# concerning generated sources ...
-scripts = []
-dependencies = []
-
-SConscript(glob.glob("*/SConscript"))
-
-SENFSCons.StandardTargets(env)
-SENFSCons.GlobalTargets(env)
-SENFSCons.Doxygen(env)
-SENFSCons.DoxyXRef(env,
- HTML_HEADER = '#/doclib/doxy-header.html',
- HTML_FOOTER = '#/doclib/doxy-footer.html')
-
-SENFSCons.InstallIncludeFiles(env, [ 'config.hh' ])
-
-# Build combined library 'libsenf'
-libsenf = env.Library(env.subst("$LIBSENF$LIBADDSUFFIX"), env['ALLOBJECTS'])
-env.Default(libsenf)
-env.Clean('all', libsenf)
-env.Alias('default', libsenf)
-
-env.Alias('install_all', env.Install('$LIBINSTALLDIR', libsenf))
-
-if env.GetOption('clean'):
- env.Clean('all', [ os.path.join(path,f)
- for path, subdirs, files in os.walk('.')
- for pattern in env['CLEAN_PATTERNS']
- for f in fnmatch.filter(files,pattern) ])
-
-PhonyTarget(env, 'deb', [
- checkLocalConf,
- updateRevision,
- "$BUILDPACKAGE_COMMAND",
- "fakeroot ./debian/rules debclean"
-])
-
-PhonyTarget(env, 'debsrc', [
- updateRevision,
- "$BUILDPACKAGE_COMMAND -S",
-])
-
-PhonyTarget(env, 'debbin', [
- checkLocalConf,
- updateRevision,
- "$BUILDPACKAGE_COMMAND -b",
- "fakeroot ./debian/rules debclean"
-])
-
-PhonyTarget(env, 'linklint', [
- 'rm -rf linklint',
- 'linklint -doc linklint -limit 99999999 `find -type d -name html -printf "/%P/@ "`',
- '[ ! -r linklint/errorX.html ] || python doclib/linklint_addnames.py <linklint/errorX.html >linklint/errorX.html.new',
- '[ ! -r linklint/errorX.html.new ] || mv linklint/errorX.html.new linklint/errorX.html',
- '[ ! -r linklint/errorAX.html ] || python doclib/linklint_addnames.py <linklint/errorAX.html >linklint/errorAX.html.new',
- '[ ! -r linklint/errorAX.html.new ] || mv linklint/errorAX.html.new linklint/errorAX.html',
- 'echo -e "\\nLokal link check results: linklint/index.html\\nRemote link check results: linklint/urlindex.html\\n"',
-])
-
-PhonyTarget(env, 'fixlinks', [
- 'python doclib/fix-links.py -v -s .svn -s linklint -s debian linklint/errorX.txt linklint/errorAX.txt',
-])
-
-PhonyTarget(env, 'prepare', [])
-
-PhonyTarget(env, 'valgrind', [
- 'find -name .test.bin | while read test; do echo; echo "Running $$test"; echo; valgrind --tool=memcheck --error-exitcode=99 --suppressions=valgrind.sup $$test $BOOSTTESTARGS; [ $$? -ne 99 ] || exit 1; done'
- ], [ 'all_tests' ])
-
-env.Clean('all', env.Dir('linklint'))
-
-env.Clean('all','.prepare-stamp')
if not env.GetOption('clean') and not os.path.exists(".prepare-stamp"):
Execute(Touch(".prepare-stamp"))
+
+### execute targets on remote hosts
+for target in COMMAND_LINE_TARGETS:
+ if '@' in target:
+ realtarget, host = target.split('@',1)
+ cwd=env.GetLaunchDir()
+ home=os.environ['HOME']+'/'
+ if cwd.startswith(home) : cwd = cwd[len(home):]
+ args = [ '$SCONSARGS' ]
+ if env.GetLaunchDir() != os.getcwd():
+ args.append('-u')
+ env.PhonyTarget(target, [], [ "ssh $HOST scons $SCONSARGS -C $DIR $RTARGET" ],
+ HOST=host, RTARGET=realtarget, DIR=cwd, SCONSARGS=args)
+
+env.PhonyTarget('clean', [], [
+ lambda **args: sys.stderr.write(
+ "=================================================================\n"
+ "'clean' is not a valid target, use the '-c' option instead:\n"
+ " $ scons -c all\n"
+ "=================================================================\n") ])