buildtools/wafsamba/samba_utils.py

   1 # a waf tool to add autoconf-like macros to the configure section
   2 # and for SAMBA_ macros for building libraries, binaries etc
   3
   4 import os, sys, re, fnmatch, shlex
   5 from optparse import SUPPRESS_HELP
   6 import Build, Options, Utils, Task, Logs, Configure
   7 from TaskGen import feature, before, after
   8 from Configure import conf, ConfigurationContext
   9 from Logs import debug
  10
  11 # TODO: make this a --option
  12 LIB_PATH="shared"
  13
  14
  15 # sigh, python octal constants are a mess
  16 MODE_644 = int('644', 8)
  17 MODE_755 = int('755', 8)
  18
  19 @conf
  20 def SET_TARGET_TYPE(ctx, target, value):
  21     '''set the target type of a target'''
  22     cache = LOCAL_CACHE(ctx, 'TARGET_TYPE')
  23     if target in cache and cache[target] != 'EMPTY':
  24         Logs.error("ERROR: Target '%s' in directory %s re-defined as %s - was %s" % (target, ctx.curdir, value, cache[target]))
  25         sys.exit(1)
  26     LOCAL_CACHE_SET(ctx, 'TARGET_TYPE', target, value)
  27     debug("task_gen: Target '%s' created of type '%s' in %s" % (target, value, ctx.curdir))
  28     return True
  29
  30
  31 def GET_TARGET_TYPE(ctx, target):
  32     '''get target type from cache'''
  33     cache = LOCAL_CACHE(ctx, 'TARGET_TYPE')
  34     if not target in cache:
  35         return None
  36     return cache[target]
  37
  38
  39 def ADD_LD_LIBRARY_PATH(path):
  40     '''add something to LD_LIBRARY_PATH'''
  41     if 'LD_LIBRARY_PATH' in os.environ:
  42         oldpath = os.environ['LD_LIBRARY_PATH']
  43     else:
  44         oldpath = ''
  45     newpath = oldpath.split(':')
  46     if not path in newpath:
  47         newpath.append(path)
  48         os.environ['LD_LIBRARY_PATH'] = ':'.join(newpath)
  49
  50
  51 def needs_private_lib(bld, target):
  52     '''return True if a target links to a private library'''
  53     for lib in getattr(target, "final_libs", []):
  54         t = bld.get_tgen_by_name(lib)
  55         if t and getattr(t, 'private_library', False):
  56             return True
  57     return False
  58
  59
  60 def install_rpath(target):
  61     '''the rpath value for installation'''
  62     bld = target.bld
  63     bld.env['RPATH'] = []
  64     ret = set()
  65     if bld.env.RPATH_ON_INSTALL:
  66         ret.add(bld.EXPAND_VARIABLES(bld.env.LIBDIR))
  67     if bld.env.RPATH_ON_INSTALL_PRIVATE and needs_private_lib(bld, target):
  68         ret.add(bld.EXPAND_VARIABLES(bld.env.PRIVATELIBDIR))
  69     return list(ret)
  70
  71
  72 def build_rpath(bld):
  73     '''the rpath value for build'''
  74     rpaths = [os.path.normpath('%s/%s' % (bld.env.BUILD_DIRECTORY, d)) for d in ("shared", "shared/private")]
  75     bld.env['RPATH'] = []
  76     if bld.env.RPATH_ON_BUILD:
  77         return rpaths
  78     for rpath in rpaths:
  79         ADD_LD_LIBRARY_PATH(rpath)
  80     return []
  81
  82
  83 @conf
  84 def LOCAL_CACHE(ctx, name):
  85     '''return a named build cache dictionary, used to store
  86        state inside other functions'''
  87     if name in ctx.env:
  88         return ctx.env[name]
  89     ctx.env[name] = {}
  90     return ctx.env[name]
  91
  92
  93 @conf
  94 def LOCAL_CACHE_SET(ctx, cachename, key, value):
  95     '''set a value in a local cache'''
  96     cache = LOCAL_CACHE(ctx, cachename)
  97     cache[key] = value
  98
  99
 100 @conf
 101 def ASSERT(ctx, expression, msg):
 102     '''a build assert call'''
 103     if not expression:
 104         raise Utils.WafError("ERROR: %s\n" % msg)
 105 Build.BuildContext.ASSERT = ASSERT
 106
 107
 108 def SUBDIR(bld, subdir, list):
 109     '''create a list of files by pre-pending each with a subdir name'''
 110     ret = ''
 111     for l in TO_LIST(list):
 112         ret = ret + os.path.normpath(os.path.join(subdir, l)) + ' '
 113     return ret
 114 Build.BuildContext.SUBDIR = SUBDIR
 115
 116
 117 def dict_concat(d1, d2):
 118     '''concatenate two dictionaries d1 += d2'''
 119     for t in d2:
 120         if t not in d1:
 121             d1[t] = d2[t]
 122
 123 def ADD_COMMAND(opt, name, function):
 124     '''add a new top level command to waf'''
 125     Utils.g_module.__dict__[name] = function
 126     opt.name = function
 127 Options.Handler.ADD_COMMAND = ADD_COMMAND
 128
 129
 130 @feature('c', 'cc', 'cshlib', 'cprogram')
 131 @before('apply_core','exec_rule')
 132 def process_depends_on(self):
 133     '''The new depends_on attribute for build rules
 134        allow us to specify a dependency on output from
 135        a source generation rule'''
 136     if getattr(self , 'depends_on', None):
 137         lst = self.to_list(self.depends_on)
 138         for x in lst:
 139             y = self.bld.get_tgen_by_name(x)
 140             self.bld.ASSERT(y is not None, "Failed to find dependency %s of %s" % (x, self.name))
 141             y.post()
 142             if getattr(y, 'more_includes', None):
 143                   self.includes += " " + y.more_includes
 144
 145
 146 os_path_relpath = getattr(os.path, 'relpath', None)
 147 if os_path_relpath is None:
 148     # Python < 2.6 does not have os.path.relpath, provide a replacement
 149     # (imported from Python2.6.5~rc2)
 150     def os_path_relpath(path, start):
 151         """Return a relative version of a path"""
 152         start_list = os.path.abspath(start).split("/")
 153         path_list = os.path.abspath(path).split("/")
 154
 155         # Work out how much of the filepath is shared by start and path.
 156         i = len(os.path.commonprefix([start_list, path_list]))
 157
 158         rel_list = ['..'] * (len(start_list)-i) + path_list[i:]
 159         if not rel_list:
 160             return start
 161         return os.path.join(*rel_list)
 162
 163
 164 def unique_list(seq):
 165     '''return a uniquified list in the same order as the existing list'''
 166     seen = {}
 167     result = []
 168     for item in seq:
 169         if item in seen: continue
 170         seen[item] = True
 171         result.append(item)
 172     return result
 173
 174
 175 def TO_LIST(str, delimiter=None):
 176     '''Split a list, preserving quoted strings and existing lists'''
 177     if str is None:
 178         return []
 179     if isinstance(str, list):
 180         # we need to return a new independent list...
 181         return list(str)
 182     if len(str) == 0:
 183         return []
 184     lst = str.split(delimiter)
 185     # the string may have had quotes in it, now we
 186     # check if we did have quotes, and use the slower shlex
 187     # if we need to
 188     for e in lst:
 189         if e[0] == '"':
 190             return shlex.split(str)
 191     return lst
 192
 193
 194 def subst_vars_error(string, env):
 195     '''substitute vars, throw an error if a variable is not defined'''
 196     lst = re.split('(\$\{\w+\})', string)
 197     out = []
 198     for v in lst:
 199         if re.match('\$\{\w+\}', v):
 200             vname = v[2:-1]
 201             if not vname in env:
 202                 raise KeyError("Failed to find variable %s in %s" % (vname, string))
 203             v = env[vname]
 204         out.append(v)
 205     return ''.join(out)
 206
 207
 208 @conf
 209 def SUBST_ENV_VAR(ctx, varname):
 210     '''Substitute an environment variable for any embedded variables'''
 211     return subst_vars_error(ctx.env[varname], ctx.env)
 212 Build.BuildContext.SUBST_ENV_VAR = SUBST_ENV_VAR
 213
 214
 215 def ENFORCE_GROUP_ORDERING(bld):
 216     '''enforce group ordering for the project. This
 217        makes the group ordering apply only when you specify
 218        a target with --target'''
 219     if Options.options.compile_targets:
 220         @feature('*')
 221         @before('exec_rule', 'apply_core', 'collect')
 222         def force_previous_groups(self):
 223             if getattr(self.bld, 'enforced_group_ordering', False):
 224                 return
 225             self.bld.enforced_group_ordering = True
 226
 227             def group_name(g):
 228                 tm = self.bld.task_manager
 229                 return [x for x in tm.groups_names if id(tm.groups_names[x]) == id(g)][0]
 230
 231             my_id = id(self)
 232             bld = self.bld
 233             stop = None
 234             for g in bld.task_manager.groups:
 235                 for t in g.tasks_gen:
 236                     if id(t) == my_id:
 237                         stop = id(g)
 238                         debug('group: Forcing up to group %s for target %s',
 239                               group_name(g), self.name or self.target)
 240                         break
 241                 if stop is not None:
 242                     break
 243             if stop is None:
 244                 return
 245
 246             for i in xrange(len(bld.task_manager.groups)):
 247                 g = bld.task_manager.groups[i]
 248                 bld.task_manager.current_group = i
 249                 if id(g) == stop:
 250                     break
 251                 debug('group: Forcing group %s', group_name(g))
 252                 for t in g.tasks_gen:
 253                     if not getattr(t, 'forced_groups', False):
 254                         debug('group: Posting %s', t.name or t.target)
 255                         t.forced_groups = True
 256                         t.post()
 257 Build.BuildContext.ENFORCE_GROUP_ORDERING = ENFORCE_GROUP_ORDERING
 258
 259
 260 def recursive_dirlist(dir, relbase, pattern=None):
 261     '''recursive directory list'''
 262     ret = []
 263     for f in os.listdir(dir):
 264         f2 = dir + '/' + f
 265         if os.path.isdir(f2):
 266             ret.extend(recursive_dirlist(f2, relbase))
 267         else:
 268             if pattern and not fnmatch.fnmatch(f, pattern):
 269                 continue
 270             ret.append(os_path_relpath(f2, relbase))
 271     return ret
 272
 273
 274 def mkdir_p(dir):
 275     '''like mkdir -p'''
 276     if not dir:
 277         return
 278     if dir.endswith("/"):
 279         mkdir_p(dir[:-1])
 280         return
 281     if os.path.isdir(dir):
 282         return
 283     mkdir_p(os.path.dirname(dir))
 284     os.mkdir(dir)
 285
 286
 287 def SUBST_VARS_RECURSIVE(string, env):
 288     '''recursively expand variables'''
 289     if string is None:
 290         return string
 291     limit=100
 292     while (string.find('${') != -1 and limit > 0):
 293         string = subst_vars_error(string, env)
 294         limit -= 1
 295     return string
 296
 297
 298 @conf
 299 def EXPAND_VARIABLES(ctx, varstr, vars=None):
 300     '''expand variables from a user supplied dictionary
 301
 302     This is most useful when you pass vars=locals() to expand
 303     all your local variables in strings
 304     '''
 305
 306     if isinstance(varstr, list):
 307         ret = []
 308         for s in varstr:
 309             ret.append(EXPAND_VARIABLES(ctx, s, vars=vars))
 310         return ret
 311
 312     if not isinstance(varstr, str):
 313         return varstr
 314
 315     import Environment
 316     env = Environment.Environment()
 317     ret = varstr
 318     # substitute on user supplied dict if avaiilable
 319     if vars is not None:
 320         for v in vars.keys():
 321             env[v] = vars[v]
 322         ret = SUBST_VARS_RECURSIVE(ret, env)
 323
 324     # if anything left, subst on the environment as well
 325     if ret.find('${') != -1:
 326         ret = SUBST_VARS_RECURSIVE(ret, ctx.env)
 327     # make sure there is nothing left. Also check for the common
 328     # typo of $( instead of ${
 329     if ret.find('${') != -1 or ret.find('$(') != -1:
 330         Logs.error('Failed to substitute all variables in varstr=%s' % ret)
 331         sys.exit(1)
 332     return ret
 333 Build.BuildContext.EXPAND_VARIABLES = EXPAND_VARIABLES
 334
 335
 336 def RUN_COMMAND(cmd,
 337                 env=None,
 338                 shell=False):
 339     '''run a external command, return exit code or signal'''
 340     if env:
 341         cmd = SUBST_VARS_RECURSIVE(cmd, env)
 342
 343     status = os.system(cmd)
 344     if os.WIFEXITED(status):
 345         return os.WEXITSTATUS(status)
 346     if os.WIFSIGNALED(status):
 347         return - os.WTERMSIG(status)
 348     Logs.error("Unknown exit reason %d for command: %s" (status, cmd))
 349     return -1
 350
 351
 352 def RUN_PYTHON_TESTS(testfiles, pythonpath=None, extra_env=None):
 353     env = LOAD_ENVIRONMENT()
 354     if pythonpath is None:
 355         pythonpath = os.path.join(Utils.g_module.blddir, 'python')
 356     result = 0
 357     for interp in env.python_interpreters:
 358         for testfile in testfiles:
 359             cmd = "PYTHONPATH=%s %s %s" % (pythonpath, interp, testfile)
 360             if extra_env:
 361                 for key, value in extra_env.items():
 362                     cmd = "%s=%s %s" % (key, value, cmd)
 363             print('Running Python test with %s: %s' % (interp, testfile))
 364             ret = RUN_COMMAND(cmd)
 365             if ret:
 366                 print('Python test failed: %s' % cmd)
 367                 result = ret
 368     return result
 369
 370
 371 # make sure we have md5. some systems don't have it
 372 try:
 373     from hashlib import md5
 374     # Even if hashlib.md5 exists, it may be unusable.
 375     # Try to use MD5 function. In FIPS mode this will cause an exception
 376     # and we'll get to the replacement code
 377     foo = md5('abcd')
 378 except:
 379     try:
 380         import md5
 381         # repeat the same check here, mere success of import is not enough.
 382         # Try to use MD5 function. In FIPS mode this will cause an exception
 383         foo = md5.md5('abcd')
 384     except:
 385         import Constants
 386         Constants.SIG_NIL = hash('abcd')
 387         class replace_md5(object):
 388             def __init__(self):
 389                 self.val = None
 390             def update(self, val):
 391                 self.val = hash((self.val, val))
 392             def digest(self):
 393                 return str(self.val)
 394             def hexdigest(self):
 395                 return self.digest().encode('hex')
 396         def replace_h_file(filename):
 397             f = open(filename, 'rb')
 398             m = replace_md5()
 399             while (filename):
 400                 filename = f.read(100000)
 401                 m.update(filename)
 402             f.close()
 403             return m.digest()
 404         Utils.md5 = replace_md5
 405         Task.md5 = replace_md5
 406         Utils.h_file = replace_h_file
 407
 408
 409 def LOAD_ENVIRONMENT():
 410     '''load the configuration environment, allowing access to env vars
 411        from new commands'''
 412     import Environment
 413     env = Environment.Environment()
 414     try:
 415         env.load('.lock-wscript')
 416         env.load(env.blddir + '/c4che/default.cache.py')
 417     except:
 418         pass
 419     return env
 420
 421
 422 def IS_NEWER(bld, file1, file2):
 423     '''return True if file1 is newer than file2'''
 424     t1 = os.stat(os.path.join(bld.curdir, file1)).st_mtime
 425     t2 = os.stat(os.path.join(bld.curdir, file2)).st_mtime
 426     return t1 > t2
 427 Build.BuildContext.IS_NEWER = IS_NEWER
 428
 429
 430 @conf
 431 def RECURSE(ctx, directory):
 432     '''recurse into a directory, relative to the curdir or top level'''
 433     try:
 434         visited_dirs = ctx.visited_dirs
 435     except:
 436         visited_dirs = ctx.visited_dirs = set()
 437     d = os.path.join(ctx.curdir, directory)
 438     if os.path.exists(d):
 439         abspath = os.path.abspath(d)
 440     else:
 441         abspath = os.path.abspath(os.path.join(Utils.g_module.srcdir, directory))
 442     ctxclass = ctx.__class__.__name__
 443     key = ctxclass + ':' + abspath
 444     if key in visited_dirs:
 445         # already done it
 446         return
 447     visited_dirs.add(key)
 448     relpath = os_path_relpath(abspath, ctx.curdir)
 449     if ctxclass == 'Handler':
 450         return ctx.sub_options(relpath)
 451     if ctxclass == 'ConfigurationContext':
 452         return ctx.sub_config(relpath)
 453     if ctxclass == 'BuildContext':
 454         return ctx.add_subdirs(relpath)
 455     Logs.error('Unknown RECURSE context class', ctxclass)
 456     raise
 457 Options.Handler.RECURSE = RECURSE
 458 Build.BuildContext.RECURSE = RECURSE
 459
 460
 461 def CHECK_MAKEFLAGS(bld):
 462     '''check for MAKEFLAGS environment variable in case we are being
 463     called from a Makefile try to honor a few make command line flags'''
 464     if not 'WAF_MAKE' in os.environ:
 465         return
 466     makeflags = os.environ.get('MAKEFLAGS')
 467     if makeflags is None:
 468         return
 469     jobs_set = False
 470     jobs = None
 471     # we need to use shlex.split to cope with the escaping of spaces
 472     # in makeflags
 473     for opt in shlex.split(makeflags):
 474         # options can come either as -x or as x
 475         if opt[0:2] == 'V=':
 476             Options.options.verbose = Logs.verbose = int(opt[2:])
 477             if Logs.verbose > 0:
 478                 Logs.zones = ['runner']
 479             if Logs.verbose > 2:
 480                 Logs.zones = ['*']
 481         elif opt[0].isupper() and opt.find('=') != -1:
 482             # this allows us to set waf options on the make command line
 483             # for example, if you do "make FOO=blah", then we set the
 484             # option 'FOO' in Options.options, to blah. If you look in wafsamba/wscript
 485             # you will see that the command line accessible options have their dest=
 486             # set to uppercase, to allow for passing of options from make in this way
 487             # this is also how "make test TESTS=testpattern" works, and
 488             # "make VERBOSE=1" as well as things like "make SYMBOLCHECK=1"
 489             loc = opt.find('=')
 490             setattr(Options.options, opt[0:loc], opt[loc+1:])
 491         elif opt[0] != '-':
 492             for v in opt:
 493                 if re.search(r'j[0-9]*$', v):
 494                     jobs_set = True
 495                     jobs = opt.strip('j')
 496                 elif v == 'k':
 497                     Options.options.keep = True
 498         elif re.search(r'-j[0-9]*$', opt):
 499             jobs_set = True
 500             jobs = opt.strip('-j')
 501         elif opt == '-k':
 502             Options.options.keep = True
 503     if not jobs_set:
 504         # default to one job
 505         Options.options.jobs = 1
 506     elif jobs_set and jobs:
 507         Options.options.jobs = int(jobs)
 508
 509 Build.BuildContext.CHECK_MAKEFLAGS = CHECK_MAKEFLAGS
 510
 511 option_groups = {}
 512
 513 def option_group(opt, name):
 514     '''find or create an option group'''
 515     global option_groups
 516     if name in option_groups:
 517         return option_groups[name]
 518     gr = opt.add_option_group(name)
 519     option_groups[name] = gr
 520     return gr
 521 Options.Handler.option_group = option_group
 522
 523
 524 def save_file(filename, contents, create_dir=False):
 525     '''save data to a file'''
 526     if create_dir:
 527         mkdir_p(os.path.dirname(filename))
 528     try:
 529         f = open(filename, 'w')
 530         f.write(contents)
 531         f.close()
 532     except:
 533         return False
 534     return True
 535
 536
 537 def load_file(filename):
 538     '''return contents of a file'''
 539     try:
 540         f = open(filename, 'r')
 541         r = f.read()
 542         f.close()
 543     except:
 544         return None
 545     return r
 546
 547
 548 def reconfigure(ctx):
 549     '''rerun configure if necessary'''
 550     import Configure, samba_wildcard, Scripting
 551     if not os.path.exists(".lock-wscript"):
 552         raise Utils.WafError('configure has not been run')
 553     bld = samba_wildcard.fake_build_environment()
 554     Configure.autoconfig = True
 555     Scripting.check_configured(bld)
 556
 557
 558 def map_shlib_extension(ctx, name, python=False):
 559     '''map a filename with a shared library extension of .so to the real shlib name'''
 560     if name is None:
 561         return None
 562     if name[-1:].isdigit():
 563         # some libraries have specified versions in the wscript rule
 564         return name
 565     (root1, ext1) = os.path.splitext(name)
 566     if python:
 567         return ctx.env.pyext_PATTERN % root1
 568     else:
 569         (root2, ext2) = os.path.splitext(ctx.env.shlib_PATTERN)
 570     return root1+ext2
 571 Build.BuildContext.map_shlib_extension = map_shlib_extension
 572
 573 def apply_pattern(filename, pattern):
 574     '''apply a filename pattern to a filename that may have a directory component'''
 575     dirname = os.path.dirname(filename)
 576     if not dirname:
 577         return pattern % filename
 578     basename = os.path.basename(filename)
 579     return os.path.join(dirname, pattern % basename)
 580
 581 def make_libname(ctx, name, nolibprefix=False, version=None, python=False):
 582     """make a library filename
 583          Options:
 584               nolibprefix: don't include the lib prefix
 585               version    : add a version number
 586               python     : if we should use python module name conventions"""
 587
 588     if python:
 589         libname = apply_pattern(name, ctx.env.pyext_PATTERN)
 590     else:
 591         libname = apply_pattern(name, ctx.env.shlib_PATTERN)
 592     if nolibprefix and libname[0:3] == 'lib':
 593         libname = libname[3:]
 594     if version:
 595         if version[0] == '.':
 596             version = version[1:]
 597         (root, ext) = os.path.splitext(libname)
 598         if ext == ".dylib":
 599             # special case - version goes before the prefix
 600             libname = "%s.%s%s" % (root, version, ext)
 601         else:
 602             libname = "%s%s.%s" % (root, ext, version)
 603     return libname
 604 Build.BuildContext.make_libname = make_libname
 605
 606
 607 def get_tgt_list(bld):
 608     '''return a list of build objects for samba'''
 609
 610     targets = LOCAL_CACHE(bld, 'TARGET_TYPE')
 611
 612     # build a list of task generators we are interested in
 613     tgt_list = []
 614     for tgt in targets:
 615         type = targets[tgt]
 616         if not type in ['SUBSYSTEM', 'MODULE', 'BINARY', 'LIBRARY', 'ASN1', 'PYTHON']:
 617             continue
 618         t = bld.get_tgen_by_name(tgt)
 619         if t is None:
 620             Logs.error("Target %s of type %s has no task generator" % (tgt, type))
 621             sys.exit(1)
 622         tgt_list.append(t)
 623     return tgt_list
 624
 625 from Constants import WSCRIPT_FILE
 626 def PROCESS_SEPARATE_RULE(self, rule):
 627     ''' cause waf to process additional script based on `rule'.
 628         You should have file named wscript_<stage>_rule in the current directory
 629         where stage is either 'configure' or 'build'
 630     '''
 631     stage = ''
 632     if isinstance(self, Configure.ConfigurationContext):
 633         stage = 'configure'
 634     elif isinstance(self, Build.BuildContext):
 635         stage = 'build'
 636     file_path = os.path.join(self.curdir, WSCRIPT_FILE+'_'+stage+'_'+rule)
 637     txt = load_file(file_path)
 638     if txt:
 639         dc = {'ctx': self}
 640         if getattr(self.__class__, 'pre_recurse', None):
 641             dc = self.pre_recurse(txt, file_path, self.curdir)
 642         exec(compile(txt, file_path, 'exec'), dc)
 643         if getattr(self.__class__, 'post_recurse', None):
 644             dc = self.post_recurse(txt, file_path, self.curdir)
 645
 646 Build.BuildContext.PROCESS_SEPARATE_RULE = PROCESS_SEPARATE_RULE
 647 ConfigurationContext.PROCESS_SEPARATE_RULE = PROCESS_SEPARATE_RULE
 648
 649 def AD_DC_BUILD_IS_ENABLED(self):
 650     if self.CONFIG_SET('AD_DC_BUILD_IS_ENABLED'):
 651         return True
 652     return False
 653
 654 Build.BuildContext.AD_DC_BUILD_IS_ENABLED = AD_DC_BUILD_IS_ENABLED
 655
 656 @feature('cprogram', 'cshlib', 'cstaticlib')
 657 @after('apply_lib_vars')
 658 @before('apply_obj_vars')
 659 def samba_before_apply_obj_vars(self):
 660     """before apply_obj_vars for uselib, this removes the standard paths"""
 661
 662     def is_standard_libpath(env, path):
 663         for _path in env.STANDARD_LIBPATH:
 664             if _path == os.path.normpath(path):
 665                 return True
 666         return False
 667
 668     v = self.env
 669
 670     for i in v['RPATH']:
 671         if is_standard_libpath(v, i):
 672             v['RPATH'].remove(i)
 673
 674     for i in v['LIBPATH']:
 675         if is_standard_libpath(v, i):
 676             v['LIBPATH'].remove(i)
 677
 678 def samba_add_onoff_option(opt, option, help=(), dest=None, default=True,
 679                            with_name="with", without_name="without"):
 680     if default is None:
 681         default_str = "auto"
 682     elif default is True:
 683         default_str = "yes"
 684     elif default is False:
 685         default_str = "no"
 686     else:
 687         default_str = str(default)
 688
 689     if help == ():
 690         help = ("Build with %s support (default=%s)" % (option, default_str))
 691     if dest is None:
 692         dest = "with_%s" % option.replace('-', '_')
 693
 694     with_val = "--%s-%s" % (with_name, option)
 695     without_val = "--%s-%s" % (without_name, option)
 696
 697     opt.add_option(with_val, help=help, action="store_true", dest=dest,
 698                    default=default)
 699     opt.add_option(without_val, help=SUPPRESS_HELP, action="store_false",
 700                    dest=dest)
 701 Options.Handler.samba_add_onoff_option = samba_add_onoff_option