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('ctdb')
  49
  50 # Optional Libraries
  51 # ------------------
  52 #
  53 # Most of the calls to opt.add_option() use default=True for the --with case
  54 #
  55 # To assist users and distributors to build Samba with the full feature
  56 # set, the build system will abort if our dependent libraries and their
  57 # header files are not found on the target system.  This will mean for
  58 # example, that xattr, acl and ldap headers must be installed for the
  59 # default build to complete.  The configure system will check for these
  60 # headers, and the error message will indicate the option (such as
  61 # --without-acl-support) that can be specified to skip this requirement.
  62 #
  63 # This will assist users and in particular distributors in building fully
  64 # functional packages, while allowing those on systems truly without these
  65 # facilities to continue to build Samba after careful consideration.
  66 #
  67 # It also ensures our container image generation in bootstrap/ is correct
  68 # as otherwise a missing package there would just silently work
  69
  70     opt.samba_add_onoff_option('pthreadpool', with_name="enable", without_name="disable", default=True)
  71
  72     opt.add_option('--with-system-mitkrb5',
  73                    help='build Samba with system MIT Kerberos. ' +
  74                         'You may specify list of paths where Kerberos is installed (e.g. /usr/local /usr/kerberos) to search krb5-config',
  75                    action='callback', callback=system_mitkrb5_callback, dest='with_system_mitkrb5', default=False)
  76
  77     opt.add_option('--with-experimental-mit-ad-dc',
  78                    help='Enable the experimental MIT Kerberos-backed AD DC.  ' +
  79                    'Note that security patches are not issued for this configuration',
  80                    action='store_true',
  81                    dest='with_experimental_mit_ad_dc',
  82                    default=False)
  83
  84     opt.add_option('--with-system-mitkdc',
  85                    help=('Specify the path to the krb5kdc binary from MIT Kerberos'),
  86                    type="string",
  87                    dest='with_system_mitkdc',
  88                    default=None)
  89
  90     opt.add_option('--with-system-heimdalkrb5',
  91                    help=('build Samba with system Heimdal Kerberos. ' +
  92                          'Requires --without-ad-dc' and
  93                          'conflicts with --with-system-mitkrb5'),
  94                    action='store_true',
  95                    dest='with_system_heimdalkrb5',
  96                    default=False)
  97
  98     opt.add_option('--without-ad-dc',
  99                    help='disable AD DC functionality (enables only Samba FS (File Server, Winbind, NMBD) and client utilities.',
 100                    action='store_true', dest='without_ad_dc', default=False)
 101
 102     opt.add_option('--with-pie',
 103                   help=("Build Position Independent Executables " +
 104                         "(default if supported by compiler)"),
 105                   action="store_true", dest='enable_pie')
 106     opt.add_option('--without-pie',
 107                   help=("Disable Position Independent Executable builds"),
 108                   action="store_false", dest='enable_pie')
 109
 110     opt.add_option('--with-relro',
 111                   help=("Build with full RELocation Read-Only (RELRO)" +
 112                         "(default if supported by compiler)"),
 113                   action="store_true", dest='enable_relro')
 114     opt.add_option('--without-relro',
 115                   help=("Disable RELRO builds"),
 116                   action="store_false", dest='enable_relro')
 117
 118     opt.add_option('--with-kernel-keyring',
 119                   help=('Enable kernely keyring support for credential storage ' +
 120                         '(default if keyutils libraries are available)'),
 121                   action='store_true', dest='enable_keyring')
 122     opt.add_option('--without-kernel-keyring',
 123                   help=('Disable kernely keyring support for credential storage'),
 124                   action='store_false', dest='enable_keyring')
 125
 126     opt.option_group('developer options')
 127
 128     opt.load('python') # options for disabling pyc or pyo compilation
 129     # enable options related to building python extensions
 130
 131     opt.add_option('--with-json',
 132                    action='store_true', dest='with_json',
 133                    help=("Build with JSON support (default=True). This "
 134                          "requires the jansson development headers."))
 135     opt.add_option('--without-json',
 136                    action='store_false', dest='with_json',
 137                    help=("Build without JSON support."))
 138
 139     opt.samba_add_onoff_option('smb1-server',
 140                                dest='with_smb1server',
 141                                help=("Build smbd with SMB1 support (default=yes)."))
 142
 143 def configure(conf):
 144     version = samba_version.load_version(env=conf.env)
 145
 146     conf.DEFINE('CONFIG_H_IS_FROM_SAMBA', 1)
 147     conf.DEFINE('_SAMBA_BUILD_', version.MAJOR, add_to_cflags=True)
 148     conf.DEFINE('HAVE_CONFIG_H', 1, add_to_cflags=True)
 149
 150     if Options.options.developer:
 151         conf.ADD_CFLAGS('-DDEVELOPER -DDEBUG_PASSWORD')
 152         conf.env.DEVELOPER = True
 153         # if we are in a git tree without a pre-commit hook, install a
 154         # simple default.
 155         # we need git for 'waf dist'
 156         githooksdir = None
 157         conf.find_program('git', var='GIT')
 158         if 'GIT' in conf.env:
 159             githooksdir = conf.CHECK_COMMAND('%s rev-parse --git-path hooks' % conf.env.GIT[0],
 160                                msg='Finding githooks directory',
 161                                define=None,
 162                                on_target=False)
 163         if githooksdir and os.path.isdir(githooksdir):
 164             pre_commit_hook = os.path.join(githooksdir, 'pre-commit')
 165             if not os.path.exists(pre_commit_hook):
 166                 Logs.info("Installing script/git-hooks/pre-commit-hook as %s" %
 167                           pre_commit_hook)
 168                 shutil.copy(os.path.join(Context.g_module.top, 'script/git-hooks/pre-commit-hook'),
 169                             pre_commit_hook)
 170
 171     conf.ADD_EXTRA_INCLUDES('#include/public #source4 #lib #source4/lib #source4/include #include #lib/replace')
 172
 173     conf.env.replace_add_global_pthread = True
 174     conf.RECURSE('lib/replace')
 175
 176     conf.RECURSE('examples/fuse')
 177     conf.RECURSE('examples/winexe')
 178
 179     conf.SAMBA_CHECK_PERL(mandatory=True)
 180     conf.find_program('xsltproc', var='XSLTPROC')
 181
 182     if conf.env.disable_python:
 183         if not (Options.options.without_ad_dc):
 184             raise Errors.WafError('--disable-python requires --without-ad-dc')
 185
 186     conf.SAMBA_CHECK_PYTHON()
 187     conf.SAMBA_CHECK_PYTHON_HEADERS()
 188
 189     if sys.platform == 'darwin' and not conf.env['HAVE_ENVIRON_DECL']:
 190         # Mac OSX needs to have this and it's also needed that the python is compiled with this
 191         # otherwise you face errors about common symbols
 192         if not conf.CHECK_SHLIB_W_PYTHON("Checking if -fno-common is needed"):
 193             conf.ADD_CFLAGS('-fno-common')
 194         if not conf.CHECK_SHLIB_W_PYTHON("Checking if -undefined dynamic_lookup is not need"):
 195             conf.env.append_value('cshlib_LINKFLAGS', ['-undefined', 'dynamic_lookup'])
 196
 197     if sys.platform == 'darwin':
 198         conf.ADD_LDFLAGS('-framework CoreFoundation')
 199
 200     conf.RECURSE('dynconfig')
 201     conf.RECURSE('selftest')
 202
 203     conf.PROCESS_SEPARATE_RULE('system_gnutls')
 204
 205     conf.CHECK_CFG(package='zlib', minversion='1.2.3',
 206                    args='--cflags --libs',
 207                    mandatory=True)
 208     conf.CHECK_FUNCS_IN('inflateInit2', 'z')
 209
 210     if Options.options.enable_keyring is not False:
 211         conf.env['WITH_KERNEL_KEYRING'] = 'auto'
 212         if Options.options.enable_keyring is True:
 213             conf.env['WITH_KERNEL_KEYRING'] = True
 214     else:
 215         conf.env['WITH_KERNEL_KEYRING'] = False
 216
 217     if conf.CHECK_FOR_THIRD_PARTY():
 218         conf.RECURSE('third_party')
 219     else:
 220
 221         if not conf.CHECK_POPT():
 222             raise Errors.WafError('popt development packages have not been found.\nIf third_party is installed, check that it is in the proper place.')
 223         else:
 224             conf.define('USING_SYSTEM_POPT', 1)
 225
 226         if not conf.CHECK_CMOCKA():
 227             raise Errors.WafError('cmocka development packages has not been found.\nIf third_party is installed, check that it is in the proper place.')
 228         else:
 229             conf.define('USING_SYSTEM_CMOCKA', 1)
 230
 231         if conf.CONFIG_GET('ENABLE_SELFTEST'):
 232             if not conf.CHECK_SOCKET_WRAPPER():
 233                 raise Errors.WafError('socket_wrapper package has not been found.\nIf third_party is installed, check that it is in the proper place.')
 234             else:
 235                 conf.define('USING_SYSTEM_SOCKET_WRAPPER', 1)
 236
 237             if not conf.CHECK_NSS_WRAPPER():
 238                 raise Errors.WafError('nss_wrapper package has not been found.\nIf third_party is installed, check that it is in the proper place.')
 239             else:
 240                 conf.define('USING_SYSTEM_NSS_WRAPPER', 1)
 241
 242             if not conf.CHECK_RESOLV_WRAPPER():
 243                 raise Errors.WafError('resolv_wrapper package has not been found.\nIf third_party is installed, check that it is in the proper place.')
 244             else:
 245                 conf.define('USING_SYSTEM_RESOLV_WRAPPER', 1)
 246
 247             if not conf.CHECK_UID_WRAPPER():
 248                 raise Errors.WafError('uid_wrapper package has not been found.\nIf third_party is installed, check that it is in the proper place.')
 249             else:
 250                 conf.define('USING_SYSTEM_UID_WRAPPER', 1)
 251
 252             if not conf.CHECK_PAM_WRAPPER():
 253                 raise Errors.WafError('pam_wrapper package has not been found.\nIf third_party is installed, check that it is in the proper place.')
 254             else:
 255                 conf.define('USING_SYSTEM_PAM_WRAPPER', 1)
 256
 257     conf.RECURSE('lib/ldb')
 258
 259     if conf.CHECK_LDFLAGS(['-Wl,--wrap=test']):
 260         conf.env['HAVE_LDWRAP'] = True
 261         conf.define('HAVE_LDWRAP', 1)
 262
 263     if not (Options.options.without_ad_dc):
 264         conf.DEFINE('AD_DC_BUILD_IS_ENABLED', 1)
 265
 266     # Check for flex before doing the embedded heimdal checks so we can bail if we don't have it.
 267     Logs.info("Checking for flex")
 268     conf.find_program('flex', var='FLEX')
 269     if conf.env['FLEX']:
 270         conf.CHECK_COMMAND('%s --version' % conf.env.FLEX[0],
 271                            msg='Using flex version',
 272                            define=None,
 273                            on_target=False)
 274     conf.env.FLEXFLAGS = ['-t']
 275
 276     # #line statements in these generated files cause issues for lcov
 277     conf.env.FLEXFLAGS += ["--noline"]
 278
 279     Logs.info("Checking for bison")
 280     bison.configure(conf)
 281     if conf.env['BISON']:
 282         conf.CHECK_COMMAND('%s --version  | head -n1' % conf.env.BISON[0],
 283                            msg='Using bison version',
 284                            define=None,
 285                            on_target=False)
 286
 287     # #line statements in these generated files cause issues for lcov
 288     conf.env.BISONFLAGS += ["--no-line"]
 289
 290     if Options.options.with_system_mitkrb5:
 291         if not Options.options.with_experimental_mit_ad_dc and \
 292            not Options.options.without_ad_dc:
 293             raise Errors.WafError('The MIT Kerberos build of Samba as an AD DC ' +
 294                                   'is experimental. Therefore '
 295                                   '--with-system-mitkrb5 requires either ' +
 296                                   '--with-experimental-mit-ad-dc or ' +
 297                                   '--without-ad-dc')
 298
 299         conf.PROCESS_SEPARATE_RULE('system_mitkrb5')
 300
 301     if not (Options.options.without_ad_dc or Options.options.with_system_mitkrb5):
 302         conf.DEFINE('AD_DC_BUILD_IS_ENABLED', 1)
 303
 304     if Options.options.with_system_heimdalkrb5:
 305         if Options.options.with_system_mitkrb5:
 306             raise Errors.WafError('--with-system-heimdalkrb5 conflicts with ' +
 307                                   '--with-system-mitkrb5')
 308         if not Options.options.without_ad_dc:
 309             raise Errors.WafError('--with-system-heimdalkrb5 requires ' +
 310                                   '--without-ad-dc')
 311         conf.env.SYSTEM_LIBS += ('heimdal', 'asn1', 'com_err', 'roken',
 312                                  'hx509', 'wind', 'gssapi', 'hcrypto',
 313                                  'krb5', 'heimbase', 'asn1_compile',
 314                                  'compile_et', 'kdc', 'hdb', 'heimntlm')
 315         conf.PROCESS_SEPARATE_RULE('system_heimdal')
 316
 317     if not conf.CONFIG_GET('KRB5_VENDOR'):
 318         conf.PROCESS_SEPARATE_RULE('embedded_heimdal')
 319
 320     conf.RECURSE('source4/dsdb/samdb/ldb_modules')
 321     conf.RECURSE('source4/ntvfs/sysdep')
 322     conf.RECURSE('lib/util')
 323     conf.RECURSE('lib/util/charset')
 324     conf.RECURSE('source4/auth')
 325     conf.RECURSE('nsswitch')
 326     conf.RECURSE('libcli/smbreadline')
 327     conf.RECURSE('pidl')
 328     if conf.CONFIG_GET('ENABLE_SELFTEST'):
 329         if not (Options.options.without_ad_dc):
 330             conf.DEFINE('WITH_NTVFS_FILESERVER', 1)
 331         conf.RECURSE('testsuite/unittests')
 332
 333     if Options.options.with_pthreadpool:
 334         if conf.CONFIG_SET('HAVE_PTHREAD'):
 335             conf.DEFINE('WITH_PTHREADPOOL', '1')
 336         else:
 337             Logs.warn("pthreadpool support cannot be enabled when pthread support was not found")
 338             conf.undefine('WITH_PTHREADPOOL')
 339
 340     conf.SET_TARGET_TYPE('jansson', 'EMPTY')
 341
 342     if Options.options.with_json is not False:
 343         if conf.CHECK_CFG(package='jansson', args='--cflags --libs',
 344                           msg='Checking for jansson'):
 345             conf.CHECK_FUNCS_IN('json_object', 'jansson')
 346
 347     if not conf.CONFIG_GET('HAVE_JSON_OBJECT'):
 348         if Options.options.with_json is not False:
 349             conf.fatal("Jansson JSON support not found. "
 350                        "Try installing libjansson-dev or jansson-devel. "
 351                        "Otherwise, use --without-json to build without "
 352                        "JSON support. "
 353                        "JSON support is required for the JSON "
 354                        "formatted audit log feature, the AD DC, and "
 355                        "the JSON printers of the net utility")
 356         if not Options.options.without_ad_dc:
 357             raise Errors.WafError('--without-json requires --without-ad-dc. '
 358                                  'Jansson JSON library is required for '
 359                                  'building the AD DC')
 360         Logs.info("Building without Jansson JSON log support")
 361
 362     conf.RECURSE('source3')
 363     conf.RECURSE('lib/texpect')
 364     conf.RECURSE('lib/tsocket')
 365     conf.RECURSE('python')
 366     if conf.env.with_ctdb:
 367         conf.RECURSE('ctdb')
 368     conf.RECURSE('lib/socket')
 369     conf.RECURSE('lib/mscat')
 370     conf.RECURSE('packaging')
 371     conf.RECURSE('lib/krb5_wrap')
 372
 373     conf.SAMBA_CHECK_UNDEFINED_SYMBOL_FLAGS()
 374
 375     # gentoo always adds this. We want our normal build to be as
 376     # strict as the strictest OS we support, so adding this here
 377     # allows us to find problems on our development hosts faster.
 378     # It also results in faster load time.
 379
 380     if (not Options.options.address_sanitizer
 381         and conf.CHECK_LDFLAGS('-Wl,--as-needed')):
 382         conf.env.append_unique('LINKFLAGS', '-Wl,--as-needed')
 383
 384     if not conf.CHECK_NEED_LC("-lc not needed"):
 385         conf.ADD_LDFLAGS('-lc', testflags=False)
 386
 387     if not conf.CHECK_CODE('#include "tests/summary.c"',
 388                            define='SUMMARY_PASSES',
 389                            addmain=False,
 390                            msg='Checking configure summary'):
 391         raise Errors.WafError('configure summary failed')
 392
 393     if Options.options.enable_pie is not False:
 394         if Options.options.enable_pie is True:
 395                 need_pie = True
 396         else:
 397                 # not specified, only build PIEs if supported by compiler
 398                 need_pie = False
 399         if conf.check_cc(cflags='-fPIE', ldflags='-pie', mandatory=need_pie,
 400                          msg="Checking compiler for PIE support"):
 401             conf.env['ENABLE_PIE'] = True
 402
 403     if Options.options.enable_relro is not False:
 404         if Options.options.enable_relro is True:
 405             need_relro = True
 406         else:
 407             # not specified, only build RELROs if supported by compiler
 408             need_relro = False
 409         if conf.check_cc(cflags='', ldflags='-Wl,-z,relro,-z,now', mandatory=need_relro,
 410                          msg="Checking compiler for full RELRO support"):
 411             conf.env['ENABLE_RELRO'] = True
 412
 413     if conf.CONFIG_GET('ENABLE_SELFTEST') and \
 414        Options.options.with_smb1server is False and \
 415        Options.options.without_ad_dc is not True:
 416         conf.fatal('--without-smb1-server cannot be specified with '
 417                    '--enable-selftest/--enable-developer if '
 418                    '--without-ad-dc is NOT set!')
 419
 420     if Options.options.with_smb1server is not False:
 421         conf.DEFINE('WITH_SMB1SERVER', '1')
 422
 423     #
 424     # FreeBSD is broken. It doesn't include 'extern char **environ'
 425     # in any shared library, but statically inside crt0.o.
 426     #
 427     # If we're running on a FreeBSD with the GNU linker ld we
 428     # can get around this by explicitly telling the linker to
 429     # ignore 'environ' as an unresolved symbol in a shared library.
 430     #
 431     # However, the clang linker ld.lld-XX is broken in that it
 432     # doesn't have that option.
 433     #
 434     # First try to see if have '-Wl,--ignore-unresolved-symbol,environ'
 435     # and just use that if so.
 436     #
 437     # If not, we have to use '-Wl,--allow-shlib-undefined' instead
 438     # and remove all instances of '-Wl,-no-undefined'.
 439
 440     if sys.platform.startswith('freebsd'):
 441         # Do we have Wl,--ignore-unresolved-symbol,environ ?
 442         flag_added = conf.ADD_LDFLAGS('-Wl,--ignore-unresolved-symbol,environ', testflags=True)
 443         if not flag_added:
 444             # No, fall back to -Wl,--allow-shlib-undefined.
 445             conf.ADD_LDFLAGS('-Wl,--allow-shlib-undefined', testflags=True)
 446             # Remove any uses of '-Wl,-no-undefined'
 447             conf.env['EXTRA_LDFLAGS'] = list(filter(('-Wl,-no-undefined').__ne__, conf.env['EXTRA_LDFLAGS']))
 448             # And make sure we don't try and remove it again when 'allow_undefined_symbols=true'
 449             conf.env.undefined_ldflags = []
 450
 451     conf.SAMBA_CONFIG_H('include/config.h')
 452
 453 def etags(ctx):
 454     '''build TAGS file using etags'''
 455     source_root = os.path.dirname(Context.g_module.root_path)
 456     cmd = r'rm -f %s/TAGS && (find %s -name "*.[ch]" | egrep -v \.inst\. | xargs -n 100 etags -a)' % (source_root, source_root)
 457     print("Running: %s" % cmd)
 458     status = os.system(cmd)
 459     if os.WEXITSTATUS(status):
 460         raise Errors.WafError('etags failed')
 461
 462 def ctags(ctx):
 463     "build 'tags' file using ctags"
 464     source_root = os.path.dirname(Context.g_module.root_path)
 465     cmd = r'ctags --python-kinds=-i $(find %s -name "*.[ch]" | grep -v "*_proto\.h" | egrep -v \.inst\.) $(find %s -name "*.py")' % (source_root, source_root)
 466     print("Running: %s" % cmd)
 467     status = os.system(cmd)
 468     if os.WEXITSTATUS(status):
 469         raise Errors.WafError('ctags failed')
 470
 471
 472 # putting this here enabled build in the list
 473 # of commands in --help
 474 def build(bld):
 475     '''build all targets'''
 476     samba_version.load_version(env=bld.env, is_install=bld.is_install)
 477
 478
 479 def pep8(ctx):
 480     '''run pep8 validator'''
 481     cmd='PYTHONPATH=bin/python pep8 -r bin/python/samba'
 482     print("Running: %s" % cmd)
 483     status = os.system(cmd)
 484     if os.WEXITSTATUS(status):
 485         raise Errors.WafError('pep8 failed')
 486
 487
 488 def dist():
 489     '''makes a tarball for distribution'''
 490     sambaversion = samba_version.load_version(env=None)
 491
 492     os.system("make -C ctdb manpages")
 493     samba_dist.DIST_FILES('ctdb/doc:ctdb/doc', extend=True)
 494
 495     os.system("DOC_VERSION='" + sambaversion.STRING + "' " + Context.g_module.top + "/release-scripts/build-manpages-nogit")
 496     samba_dist.DIST_FILES('bin/docs:docs', extend=True)
 497
 498     if sambaversion.IS_SNAPSHOT:
 499         # write .distversion file and add to tar
 500         if not os.path.isdir(Context.g_module.out):
 501             os.makedirs(Context.g_module.out)
 502         distversionf = tempfile.NamedTemporaryFile(mode='w', prefix='.distversion',dir=Context.g_module.out)
 503         for field in sambaversion.vcs_fields:
 504             distveroption = field + '=' + str(sambaversion.vcs_fields[field])
 505             distversionf.write(distveroption + '\n')
 506         distversionf.flush()
 507         samba_dist.DIST_FILES('%s:.distversion' % distversionf.name, extend=True)
 508
 509         samba_dist.dist()
 510         distversionf.close()
 511     else:
 512         samba_dist.dist()
 513
 514
 515 def distcheck():
 516     '''test that distribution tarball builds and installs'''
 517     samba_version.load_version(env=None)
 518
 519 def wildcard_cmd(cmd):
 520     '''called on a unknown command'''
 521     from samba_wildcard import run_named_build_task
 522     run_named_build_task(cmd)
 523
 524 def main():
 525     from samba_wildcard import wildcard_main
 526
 527     wildcard_main(wildcard_cmd)
 528 Scripting.main = main
 529
 530 def reconfigure(ctx):
 531     '''reconfigure if config scripts have changed'''
 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'")