wscript

   1 #!/usr/bin/env python
   2
   3 top = '.'
   4 out = 'bin'
   5
   6 APPNAME='samba'
   7 VERSION=None
   8
   9 import sys, os, tempfile
  10 sys.path.insert(0, top+"/buildtools/wafsamba")
  11 import shutil
  12 import wafsamba, samba_dist, samba_git, samba_version, samba_utils
  13 from waflib import Options, Scripting, Logs, Context, Errors
  14 from waflib.Tools import bison
  15
  16 samba_dist.DIST_DIRS('.')
  17 samba_dist.DIST_BLACKLIST('.gitignore .bzrignore source4/selftest/provisions')
  18
  19 # install in /usr/local/samba by default
  20 default_prefix = Options.default_prefix = '/usr/local/samba'
  21
  22 # This callback optionally takes a list of paths as arguments:
  23 # --with-system_mitkrb5 /path/to/krb5 /another/path
  24 def system_mitkrb5_callback(option, opt, value, parser):
  25     setattr(parser.values, option.dest, True)
  26     value = []
  27     for arg in parser.rargs:
  28         # stop on --foo like options
  29         if arg[:2] == "--" and len(arg) > 2:
  30             break
  31         value.append(arg)
  32     if len(value)>0:
  33         del parser.rargs[:len(value)]
  34         setattr(parser.values, option.dest, value)
  35
  36 def options(opt):
  37     opt.BUILTIN_DEFAULT('NONE')
  38     opt.PRIVATE_EXTENSION_DEFAULT('samba4')
  39     opt.RECURSE('lib/replace')
  40     opt.RECURSE('dynconfig')
  41     opt.RECURSE('packaging')
  42     opt.RECURSE('lib/ldb')
  43     opt.RECURSE('selftest')
  44     opt.RECURSE('source4/dsdb/samdb/ldb_modules')
  45     opt.RECURSE('pidl')
  46     opt.RECURSE('source3')
  47     opt.RECURSE('lib/util')
  48     opt.RECURSE('lib/crypto')
  49     opt.RECURSE('ctdb')
  50
  51 # Optional Libraries
  52 # ------------------
  53 #
  54 # Most of the calls to opt.add_option() use default=True for the --with case
  55 #
  56 # To assist users and distributors to build Samba with the full feature
  57 # set, the build system will abort if our dependent libraries and their
  58 # header files are not found on the target system.  This will mean for
  59 # example, that xattr, acl and ldap headers must be installed for the
  60 # default build to complete.  The configure system will check for these
  61 # headers, and the error message will indicate the option (such as
  62 # --without-acl-support) that can be specified to skip this requirement.
  63 #
  64 # This will assist users and in particular distributors in building fully
  65 # functional packages, while allowing those on systems truly without these
  66 # facilities to continue to build Samba after careful consideration.
  67 #
  68 # It also ensures our container image generation in bootstrap/ is correct
  69 # as otherwise a missing package there would just silently work
  70
  71     opt.samba_add_onoff_option('pthreadpool', with_name="enable", without_name="disable", default=True)
  72
  73     opt.add_option('--with-system-mitkrb5',
  74                    help='build Samba with system MIT Kerberos. ' +
  75                         'You may specify list of paths where Kerberos is installed (e.g. /usr/local /usr/kerberos) to search krb5-config',
  76                    action='callback', callback=system_mitkrb5_callback, dest='with_system_mitkrb5', default=False)
  77
  78     opt.add_option('--with-experimental-mit-ad-dc',
  79                    help='Enable the experimental MIT Kerberos-backed AD DC.  ' +
  80                    'Note that security patches are not issued for this configuration',
  81                    action='store_true',
  82                    dest='with_experimental_mit_ad_dc',
  83                    default=False)
  84
  85     opt.add_option('--with-system-mitkdc',
  86                    help=('Specify the path to the krb5kdc binary from MIT Kerberos'),
  87                    type="string",
  88                    dest='with_system_mitkdc',
  89                    default=None)
  90
  91     opt.add_option('--with-system-heimdalkrb5',
  92                    help=('build Samba with system Heimdal Kerberos. ' +
  93                          'Requires --without-ad-dc' and
  94                          'conflicts with --with-system-mitkrb5'),
  95                    action='store_true',
  96                    dest='with_system_heimdalkrb5',
  97                    default=False)
  98
  99     opt.add_option('--without-ad-dc',
 100                    help='disable AD DC functionality (enables only Samba FS (File Server, Winbind, NMBD) and client utilities.',
 101                    action='store_true', dest='without_ad_dc', default=False)
 102
 103     opt.add_option('--with-pie',
 104                   help=("Build Position Independent Executables " +
 105                         "(default if supported by compiler)"),
 106                   action="store_true", dest='enable_pie')
 107     opt.add_option('--without-pie',
 108                   help=("Disable Position Independent Executable builds"),
 109                   action="store_false", dest='enable_pie')
 110
 111     opt.add_option('--with-relro',
 112                   help=("Build with full RELocation Read-Only (RELRO)" +
 113                         "(default if supported by compiler)"),
 114                   action="store_true", dest='enable_relro')
 115     opt.add_option('--without-relro',
 116                   help=("Disable RELRO builds"),
 117                   action="store_false", dest='enable_relro')
 118
 119     gr = opt.option_group('developer options')
 120
 121     opt.load('python') # options for disabling pyc or pyo compilation
 122     # enable options related to building python extensions
 123
 124     opt.add_option('--with-json',
 125                    action='store_true', dest='with_json',
 126                    help=("Build with JSON support (default=True). This "
 127                          "requires the jansson development headers."))
 128     opt.add_option('--without-json',
 129                    action='store_false', dest='with_json',
 130                    help=("Build without JSON support."))
 131
 132 def configure(conf):
 133     version = samba_version.load_version(env=conf.env)
 134
 135     conf.DEFINE('CONFIG_H_IS_FROM_SAMBA', 1)
 136     conf.DEFINE('_SAMBA_BUILD_', version.MAJOR, add_to_cflags=True)
 137     conf.DEFINE('HAVE_CONFIG_H', 1, add_to_cflags=True)
 138
 139     if Options.options.developer:
 140         conf.ADD_CFLAGS('-DDEVELOPER -DDEBUG_PASSWORD')
 141         conf.env.DEVELOPER = True
 142         # if we are in a git tree without a pre-commit hook, install a
 143         # simple default.
 144         pre_commit_hook = os.path.join(Context.g_module.top, '.git/hooks/pre-commit')
 145         if (os.path.isdir(os.path.dirname(pre_commit_hook)) and
 146             not os.path.exists(pre_commit_hook)):
 147             shutil.copy(os.path.join(Context.g_module.top, 'script/git-hooks/pre-commit-hook'),
 148                         pre_commit_hook)
 149
 150     conf.ADD_EXTRA_INCLUDES('#include/public #source4 #lib #source4/lib #source4/include #include #lib/replace')
 151
 152     conf.env.replace_add_global_pthread = True
 153     conf.RECURSE('lib/replace')
 154
 155     conf.RECURSE('examples/fuse')
 156     conf.RECURSE('examples/winexe')
 157
 158     conf.SAMBA_CHECK_PERL(mandatory=True)
 159     conf.find_program('xsltproc', var='XSLTPROC')
 160
 161     if conf.env.disable_python:
 162         if not (Options.options.without_ad_dc):
 163             raise Errors.WafError('--disable-python requires --without-ad-dc')
 164
 165     conf.SAMBA_CHECK_PYTHON()
 166     conf.SAMBA_CHECK_PYTHON_HEADERS()
 167
 168     if sys.platform == 'darwin' and not conf.env['HAVE_ENVIRON_DECL']:
 169         # Mac OSX needs to have this and it's also needed that the python is compiled with this
 170         # otherwise you face errors about common symbols
 171         if not conf.CHECK_SHLIB_W_PYTHON("Checking if -fno-common is needed"):
 172             conf.ADD_CFLAGS('-fno-common')
 173         if not conf.CHECK_SHLIB_W_PYTHON("Checking if -undefined dynamic_lookup is not need"):
 174             conf.env.append_value('cshlib_LINKFLAGS', ['-undefined', 'dynamic_lookup'])
 175
 176     if sys.platform == 'darwin':
 177         conf.ADD_LDFLAGS('-framework CoreFoundation')
 178
 179     conf.RECURSE('dynconfig')
 180     conf.RECURSE('selftest')
 181
 182     conf.CHECK_CFG(package='zlib', minversion='1.2.3',
 183                    args='--cflags --libs',
 184                    mandatory=True)
 185     conf.CHECK_FUNCS_IN('inflateInit2', 'z')
 186
 187     if conf.CHECK_FOR_THIRD_PARTY():
 188         conf.RECURSE('third_party')
 189     else:
 190
 191         if not conf.CHECK_POPT():
 192             raise Errors.WafError('popt development packages have not been found.\nIf third_party is installed, check that it is in the proper place.')
 193         else:
 194             conf.define('USING_SYSTEM_POPT', 1)
 195
 196         if not conf.CHECK_CMOCKA():
 197             raise Errors.WafError('cmocka development packages has not been found.\nIf third_party is installed, check that it is in the proper place.')
 198         else:
 199             conf.define('USING_SYSTEM_CMOCKA', 1)
 200
 201         if conf.CONFIG_GET('ENABLE_SELFTEST'):
 202             if not conf.CHECK_SOCKET_WRAPPER():
 203                 raise Errors.WafError('socket_wrapper package has not been found.\nIf third_party is installed, check that it is in the proper place.')
 204             else:
 205                 conf.define('USING_SYSTEM_SOCKET_WRAPPER', 1)
 206
 207             if not conf.CHECK_NSS_WRAPPER():
 208                 raise Errors.WafError('nss_wrapper package has not been found.\nIf third_party is installed, check that it is in the proper place.')
 209             else:
 210                 conf.define('USING_SYSTEM_NSS_WRAPPER', 1)
 211
 212             if not conf.CHECK_RESOLV_WRAPPER():
 213                 raise Errors.WafError('resolv_wrapper package has not been found.\nIf third_party is installed, check that it is in the proper place.')
 214             else:
 215                 conf.define('USING_SYSTEM_RESOLV_WRAPPER', 1)
 216
 217             if not conf.CHECK_UID_WRAPPER():
 218                 raise Errors.WafError('uid_wrapper package has not been found.\nIf third_party is installed, check that it is in the proper place.')
 219             else:
 220                 conf.define('USING_SYSTEM_UID_WRAPPER', 1)
 221
 222             if not conf.CHECK_PAM_WRAPPER():
 223                 raise Errors.WafError('pam_wrapper package has not been found.\nIf third_party is installed, check that it is in the proper place.')
 224             else:
 225                 conf.define('USING_SYSTEM_PAM_WRAPPER', 1)
 226
 227     conf.RECURSE('lib/ldb')
 228
 229     if conf.CHECK_LDFLAGS(['-Wl,--wrap=test']):
 230         conf.env['HAVE_LDWRAP'] = True
 231         conf.define('HAVE_LDWRAP', 1)
 232
 233     if not (Options.options.without_ad_dc):
 234         conf.DEFINE('AD_DC_BUILD_IS_ENABLED', 1)
 235
 236     # Check for flex before doing the embedded heimdal checks so we can bail if we don't have it.
 237     Logs.info("Checking for flex")
 238     conf.find_program('flex', var='FLEX')
 239     if conf.env['FLEX']:
 240         conf.CHECK_COMMAND('%s --version' % conf.env.FLEX[0],
 241                            msg='Using flex version',
 242                            define=None,
 243                            on_target=False)
 244     conf.env.FLEXFLAGS = ['-t']
 245
 246     # #line statements in these generated files cause issues for lcov
 247     conf.env.FLEXFLAGS += ["--noline"]
 248
 249     Logs.info("Checking for bison")
 250     bison.configure(conf)
 251     if conf.env['BISON']:
 252         conf.CHECK_COMMAND('%s --version  | head -n1' % conf.env.BISON[0],
 253                            msg='Using bison version',
 254                            define=None,
 255                            on_target=False)
 256
 257     # #line statements in these generated files cause issues for lcov
 258     conf.env.BISONFLAGS += ["--no-line"]
 259
 260     if Options.options.with_system_mitkrb5:
 261         if not Options.options.with_experimental_mit_ad_dc and \
 262            not Options.options.without_ad_dc:
 263             raise Errors.WafError('The MIT Kerberos build of Samba as an AD DC ' +
 264                                   'is experimental. Therefore '
 265                                   '--with-system-mitkrb5 requires either ' +
 266                                   '--with-experimental-mit-ad-dc or ' +
 267                                   '--without-ad-dc')
 268
 269         conf.PROCESS_SEPARATE_RULE('system_mitkrb5')
 270
 271     if not (Options.options.without_ad_dc or Options.options.with_system_mitkrb5):
 272         conf.DEFINE('AD_DC_BUILD_IS_ENABLED', 1)
 273
 274     if Options.options.with_system_heimdalkrb5:
 275         if Options.options.with_system_mitkrb5:
 276             raise Errors.WafError('--with-system-heimdalkrb5 conflicts with ' +
 277                                   '--with-system-mitkrb5')
 278         if not Options.options.without_ad_dc:
 279             raise Errors.WafError('--with-system-heimdalkrb5 requires ' +
 280                                   '--without-ad-dc')
 281         conf.env.SYSTEM_LIBS += ('heimdal', 'asn1', 'com_err', 'roken',
 282                                  'hx509', 'wind', 'gssapi', 'hcrypto',
 283                                  'krb5', 'heimbase', 'asn1_compile',
 284                                  'compile_et', 'kdc', 'hdb', 'heimntlm')
 285         conf.PROCESS_SEPARATE_RULE('system_heimdal')
 286
 287     if not conf.CONFIG_GET('KRB5_VENDOR'):
 288         conf.PROCESS_SEPARATE_RULE('embedded_heimdal')
 289
 290     conf.PROCESS_SEPARATE_RULE('system_gnutls')
 291
 292     conf.RECURSE('source4/dsdb/samdb/ldb_modules')
 293     conf.RECURSE('source4/ntvfs/sysdep')
 294     conf.RECURSE('lib/util')
 295     conf.RECURSE('lib/util/charset')
 296     conf.RECURSE('source4/auth')
 297     conf.RECURSE('nsswitch')
 298     conf.RECURSE('libcli/smbreadline')
 299     conf.RECURSE('lib/crypto')
 300     conf.RECURSE('pidl')
 301     if conf.CONFIG_GET('ENABLE_SELFTEST'):
 302         if not (Options.options.without_ad_dc):
 303             conf.DEFINE('WITH_NTVFS_FILESERVER', 1)
 304         conf.RECURSE('testsuite/unittests')
 305
 306     if Options.options.with_pthreadpool:
 307         if conf.CONFIG_SET('HAVE_PTHREAD'):
 308             conf.DEFINE('WITH_PTHREADPOOL', '1')
 309         else:
 310             Logs.warn("pthreadpool support cannot be enabled when pthread support was not found")
 311             conf.undefine('WITH_PTHREADPOOL')
 312
 313     conf.SET_TARGET_TYPE('jansson', 'EMPTY')
 314
 315     if Options.options.with_json != False:
 316         if conf.CHECK_CFG(package='jansson', args='--cflags --libs',
 317                           msg='Checking for jansson'):
 318             conf.CHECK_FUNCS_IN('json_object', 'jansson')
 319
 320     if not conf.CONFIG_GET('HAVE_JSON_OBJECT'):
 321         if Options.options.with_json != False:
 322             conf.fatal("Jansson JSON support not found. "
 323                        "Try installing libjansson-dev or jansson-devel. "
 324                        "Otherwise, use --without-json to build without "
 325                        "JSON support. "
 326                        "JSON support is required for the JSON "
 327                        "formatted audit log feature, the AD DC, and "
 328                        "the JSON printers of the net utility")
 329         if not Options.options.without_ad_dc:
 330             raise Errors.WafError('--without-json requires --without-ad-dc. '
 331                                  'Jansson JSON library is required for '
 332                                  'building the AD DC')
 333         Logs.info("Building without Jansson JSON log support")
 334
 335     conf.RECURSE('source3')
 336     conf.RECURSE('lib/texpect')
 337     conf.RECURSE('python')
 338     if conf.env.with_ctdb:
 339         conf.RECURSE('ctdb')
 340     conf.RECURSE('lib/socket')
 341     conf.RECURSE('lib/mscat')
 342     conf.RECURSE('packaging')
 343
 344     conf.SAMBA_CHECK_UNDEFINED_SYMBOL_FLAGS()
 345
 346     # gentoo always adds this. We want our normal build to be as
 347     # strict as the strictest OS we support, so adding this here
 348     # allows us to find problems on our development hosts faster.
 349     # It also results in faster load time.
 350
 351     if conf.CHECK_LDFLAGS('-Wl,--as-needed'):
 352         conf.env.append_unique('LINKFLAGS', '-Wl,--as-needed')
 353
 354     if not conf.CHECK_NEED_LC("-lc not needed"):
 355         conf.ADD_LDFLAGS('-lc', testflags=False)
 356
 357     if not conf.CHECK_CODE('#include "tests/summary.c"',
 358                            define='SUMMARY_PASSES',
 359                            addmain=False,
 360                            msg='Checking configure summary'):
 361         raise Errors.WafError('configure summary failed')
 362
 363     if Options.options.enable_pie != False:
 364         if Options.options.enable_pie == True:
 365                 need_pie = True
 366         else:
 367                 # not specified, only build PIEs if supported by compiler
 368                 need_pie = False
 369         if conf.check_cc(cflags='-fPIE', ldflags='-pie', mandatory=need_pie,
 370                          msg="Checking compiler for PIE support"):
 371             conf.env['ENABLE_PIE'] = True
 372
 373     if Options.options.enable_relro != False:
 374         if Options.options.enable_relro == True:
 375             need_relro = True
 376         else:
 377             # not specified, only build RELROs if supported by compiler
 378             need_relro = False
 379         if conf.check_cc(cflags='', ldflags='-Wl,-z,relro,-z,now', mandatory=need_relro,
 380                          msg="Checking compiler for full RELRO support"):
 381             conf.env['ENABLE_RELRO'] = True
 382
 383     #
 384     # FreeBSD is broken. It doesn't include 'extern char **environ'
 385     # in any shared library, but statically inside crt0.o.
 386     #
 387     # If we're running on a FreeBSD with the GNU linker ld we
 388     # can get around this by explicitly telling the linker to
 389     # ignore 'environ' as an unresolved symbol in a shared library.
 390     #
 391     # However, the clang linker ld.lld-XX is broken in that it
 392     # doesn't have that option.
 393     #
 394     # First try to see if have '-Wl,--ignore-unresolved-symbol,environ'
 395     # and just use that if so.
 396     #
 397     # If not, we have to use '-Wl,--allow-shlib-undefined' instead
 398     # and remove all instances of '-Wl,-no-undefined'.
 399
 400     if sys.platform.startswith('freebsd'):
 401         # Do we have Wl,--ignore-unresolved-symbol,environ ?
 402         flag_added = conf.ADD_LDFLAGS('-Wl,--ignore-unresolved-symbol,environ', testflags=True)
 403         if not flag_added:
 404             # No, fall back to -Wl,--allow-shlib-undefined.
 405             conf.ADD_LDFLAGS('-Wl,--allow-shlib-undefined', testflags=True)
 406             # Remove any uses of '-Wl,-no-undefined'
 407             conf.env['EXTRA_LDFLAGS'] = list(filter(('-Wl,-no-undefined').__ne__, conf.env['EXTRA_LDFLAGS']))
 408             # And make sure we don't try and remove it again when 'allow_undefined_symbols=true'
 409             conf.env.undefined_ldflags = []
 410
 411     conf.SAMBA_CONFIG_H('include/config.h')
 412
 413 def etags(ctx):
 414     '''build TAGS file using etags'''
 415     from waflib import Utils
 416     source_root = os.path.dirname(Context.g_module.root_path)
 417     cmd = 'rm -f %s/TAGS && (find %s -name "*.[ch]" | egrep -v \.inst\. | xargs -n 100 etags -a)' % (source_root, source_root)
 418     print("Running: %s" % cmd)
 419     status = os.system(cmd)
 420     if os.WEXITSTATUS(status):
 421         raise Errors.WafError('etags failed')
 422
 423 def ctags(ctx):
 424     "build 'tags' file using ctags"
 425     from waflib import Utils
 426     source_root = os.path.dirname(Context.g_module.root_path)
 427     cmd = 'ctags --python-kinds=-i $(find %s -name "*.[ch]" | grep -v "*_proto\.h" | egrep -v \.inst\.) $(find %s -name "*.py")' % (source_root, source_root)
 428     print("Running: %s" % cmd)
 429     status = os.system(cmd)
 430     if os.WEXITSTATUS(status):
 431         raise Errors.WafError('ctags failed')
 432
 433
 434 # putting this here enabled build in the list
 435 # of commands in --help
 436 def build(bld):
 437     '''build all targets'''
 438     samba_version.load_version(env=bld.env, is_install=bld.is_install)
 439
 440
 441 def pydoctor(ctx):
 442     '''build python apidocs'''
 443     bp = os.path.abspath('bin/python')
 444     mpaths = {}
 445     modules = ['talloc', 'tdb', 'ldb']
 446     for m in modules:
 447         f = os.popen("PYTHONPATH=%s python -c 'import %s; print %s.__file__'" % (bp, m, m), 'r')
 448         try:
 449             mpaths[m] = f.read().strip()
 450         finally:
 451             f.close()
 452     mpaths['main'] = bp
 453     cmd = ('PYTHONPATH=%(main)s pydoctor --introspect-c-modules --project-name=Samba '
 454            '--project-url=http://www.samba.org --make-html --docformat=restructuredtext '
 455            '--add-package bin/python/samba ' + ''.join('--add-module %s ' % n for n in modules))
 456     cmd = cmd % mpaths
 457     print("Running: %s" % cmd)
 458     status = os.system(cmd)
 459     if os.WEXITSTATUS(status):
 460         raise Errors.WafError('pydoctor failed')
 461
 462
 463 def pep8(ctx):
 464     '''run pep8 validator'''
 465     cmd='PYTHONPATH=bin/python pep8 -r bin/python/samba'
 466     print("Running: %s" % cmd)
 467     status = os.system(cmd)
 468     if os.WEXITSTATUS(status):
 469         raise Errors.WafError('pep8 failed')
 470
 471
 472 def wafdocs(ctx):
 473     '''build wafsamba apidocs'''
 474     from samba_utils import recursive_dirlist
 475     os.system('pwd')
 476     list = recursive_dirlist('../buildtools/wafsamba', '.', pattern='*.py')
 477
 478     print(list)
 479     cmd='PYTHONPATH=bin/python pydoctor --project-name=wafsamba --project-url=http://www.samba.org --make-html --docformat=restructuredtext' +\
 480         "".join(' --add-module %s' % f for f in list)
 481     print("Running: %s" % cmd)
 482     status = os.system(cmd)
 483     if os.WEXITSTATUS(status):
 484         raise Errors.WafError('wafdocs failed')
 485
 486
 487 def dist():
 488     '''makes a tarball for distribution'''
 489     sambaversion = samba_version.load_version(env=None)
 490
 491     os.system("make -C ctdb manpages")
 492     samba_dist.DIST_FILES('ctdb/doc:ctdb/doc', extend=True)
 493
 494     os.system("DOC_VERSION='" + sambaversion.STRING + "' " + Context.g_module.top + "/release-scripts/build-manpages-nogit")
 495     samba_dist.DIST_FILES('bin/docs:docs', extend=True)
 496
 497     if sambaversion.IS_SNAPSHOT:
 498         # write .distversion file and add to tar
 499         if not os.path.isdir(Context.g_module.out):
 500             os.makedirs(Context.g_module.out)
 501         distversionf = tempfile.NamedTemporaryFile(mode='w', prefix='.distversion',dir=Context.g_module.out)
 502         for field in sambaversion.vcs_fields:
 503             distveroption = field + '=' + str(sambaversion.vcs_fields[field])
 504             distversionf.write(distveroption + '\n')
 505         distversionf.flush()
 506         samba_dist.DIST_FILES('%s:.distversion' % distversionf.name, extend=True)
 507
 508         samba_dist.dist()
 509         distversionf.close()
 510     else:
 511         samba_dist.dist()
 512
 513
 514 def distcheck():
 515     '''test that distribution tarball builds and installs'''
 516     samba_version.load_version(env=None)
 517
 518 def wildcard_cmd(cmd):
 519     '''called on a unknown command'''
 520     from samba_wildcard import run_named_build_task
 521     run_named_build_task(cmd)
 522
 523 def main():
 524     from samba_wildcard import wildcard_main
 525
 526     wildcard_main(wildcard_cmd)
 527 Scripting.main = main
 528
 529 def reconfigure(ctx):
 530     '''reconfigure if config scripts have changed'''
 531     import samba_utils
 532     samba_utils.reconfigure(ctx)
 533
 534
 535 if os.path.isdir(os.path.join(top, ".git")):
 536     # Check if there are submodules that are checked out but out of date.
 537     for submodule, status in samba_git.read_submodule_status(top):
 538         if status == "out-of-date":
 539             raise Errors.WafError("some submodules are out of date. Please run 'git submodule update'")