buildtools/wafsamba/wscript

   1 #!/usr/bin/env python
   2
   3 # this is a base set of waf rules that everything else pulls in first
   4
   5 import os, sys
   6 from waflib import Configure, Logs, Options, Utils, Context, Errors
   7 import wafsamba
   8 from samba_utils import symlink
   9 from optparse import SUPPRESS_HELP
  10
  11 # this forces configure to be re-run if any of the configure
  12 # sections of the build scripts change. We have to check
  13 # for this in sys.argv as options have not yet been parsed when
  14 # we need to set this. This is off by default until some issues
  15 # are resolved related to WAFCACHE. It will need a lot of testing
  16 # before it is enabled by default.
  17 if '--enable-auto-reconfigure' in sys.argv:
  18     Configure.autoconfig = 'clobber'
  19
  20 def default_value(option, default=''):
  21     if option in Options.options.__dict__:
  22         return Options.options.__dict__[option]
  23     return default
  24
  25 def options(opt):
  26     opt.load('compiler_cc')
  27
  28     opt.load('gnu_dirs')
  29
  30     gr = opt.option_group('library handling options')
  31
  32     gr.add_option('--bundled-libraries',
  33                    help=("comma separated list of bundled libraries. May include !LIBNAME to disable bundling a library. Can be 'NONE' or 'ALL' [auto]"),
  34                    action="store", dest='BUNDLED_LIBS', default='')
  35
  36     gr.add_option('--private-libraries',
  37                    help=("comma separated list of normally public libraries to build instead as private libraries. May include !LIBNAME to disable making a library private in order to limit the effect of 'ALL'"),
  38                    action="store", dest='PRIVATE_LIBS', default='')
  39
  40     extension_default = default_value('PRIVATE_EXTENSION_DEFAULT')
  41     gr.add_option('--private-library-extension',
  42                    help=("name extension for private libraries [%s]" % extension_default),
  43                    action="store", dest='PRIVATE_EXTENSION', default=extension_default)
  44
  45     extension_exception = default_value('PRIVATE_EXTENSION_EXCEPTION')
  46     gr.add_option('--private-extension-exception',
  47                    help=("comma separated list of libraries to not apply extension to [%s]" % extension_exception),
  48                    action="store", dest='PRIVATE_EXTENSION_EXCEPTION', default=extension_exception)
  49
  50     builtin_default = default_value('BUILTIN_LIBRARIES_DEFAULT')
  51     gr.add_option('--builtin-libraries',
  52                    help=("command separated list of libraries to build directly into binaries [%s]" % builtin_default),
  53                    action="store", dest='BUILTIN_LIBRARIES', default=builtin_default)
  54
  55     gr.add_option('--minimum-library-version',
  56                    help=("list of minimum system library versions (LIBNAME1:version,LIBNAME2:version)"),
  57                    action="store", dest='MINIMUM_LIBRARY_VERSION', default='')
  58
  59     gr.add_option('--disable-rpath',
  60                    help=("Disable use of rpath for build binaries"),
  61                    action="store_true", dest='disable_rpath_build', default=False)
  62     gr.add_option('--disable-rpath-install',
  63                    help=("Disable use of rpath for library path in installed files"),
  64                    action="store_true", dest='disable_rpath_install', default=False)
  65     gr.add_option('--disable-rpath-private-install',
  66                    help=("Disable use of rpath for private library path in installed files"),
  67                    action="store_true", dest='disable_rpath_private_install', default=False)
  68     gr.add_option('--nonshared-binary',
  69                    help=("Disable use of shared libs for the listed binaries"),
  70                    action="store", dest='NONSHARED_BINARIES', default='')
  71     gr.add_option('--disable-symbol-versions',
  72                    help=("Disable use of the --version-script linker option"),
  73                    action="store_true", dest='disable_symbol_versions', default=False)
  74
  75     opt.add_option('--with-modulesdir',
  76                    help=("modules directory [PREFIX/modules]"),
  77                    action="store", dest='MODULESDIR', default='${PREFIX}/modules')
  78
  79     opt.add_option('--with-privatelibdir',
  80                    help=("private library directory [PREFIX/lib/%s]" % Context.g_module.APPNAME),
  81                    action="store", dest='PRIVATELIBDIR', default=None)
  82
  83     opt.add_option('--with-libiconv',
  84                    help='additional directory to search for libiconv',
  85                    action='store', dest='iconv_open', default='/usr/local',
  86                    match = ['Checking for library iconv', 'Checking for iconv_open', 'Checking for header iconv.h'])
  87     opt.add_option('--without-gettext',
  88                    help=("Disable use of gettext"),
  89                    action="store_true", dest='disable_gettext', default=False)
  90
  91     gr = opt.option_group('developer options')
  92
  93     gr.add_option('-C',
  94                    help='enable configure caching',
  95                    action='store_true', dest='enable_configure_cache')
  96     gr.add_option('--enable-auto-reconfigure',
  97                    help='enable automatic reconfigure on build',
  98                    action='store_true', dest='enable_auto_reconfigure')
  99     gr.add_option('--enable-debug',
 100                    help=("Turn on debugging symbols"),
 101                    action="store_true", dest='debug', default=False)
 102     gr.add_option('--enable-developer',
 103                    help=("Turn on developer warnings and debugging"),
 104                    action="store_true", dest='developer', default=False)
 105     gr.add_option('--pidl-developer',
 106                    help=("annotate PIDL-generated code for developers"),
 107                    action="store_true", dest='pidl_developer', default=False)
 108     gr.add_option('--disable-warnings-as-errors',
 109                    help=("Do not treat all warnings as errors (disable -Werror)"),
 110                    action="store_true", dest='disable_warnings_as_errors', default=False)
 111     opt.add_option('--enable-coverage',
 112                    help=("enable options necessary for code coverage "
 113                          "reporting on selftest (default=no)"),
 114                    action="store_true", dest='enable_coverage', default=False)
 115     gr.add_option('--fatal-errors',
 116                    help=("Stop compilation on first error (enable -Wfatal-errors)"),
 117                    action="store_true", dest='fatal_errors', default=False)
 118     gr.add_option('--enable-gccdeps',
 119                    help=("Enable use of gcc -MD dependency module"),
 120                    action="store_true", dest='enable_gccdeps', default=True)
 121     gr.add_option('--pedantic',
 122                    help=("Enable even more compiler warnings"),
 123                    action='store_true', dest='pedantic', default=False)
 124     gr.add_option('--git-local-changes',
 125                    help=("mark version with + if local git changes"),
 126                    action='store_true', dest='GIT_LOCAL_CHANGES', default=False)
 127     gr.add_option('--address-sanitizer',
 128                    help=("Enable address sanitizer compile and linker flags"),
 129                    action="store_true", dest='address_sanitizer', default=False)
 130     gr.add_option('--undefined-sanitizer',
 131         help=("Enable undefined behaviour sanitizer compile and linker flags"),
 132         action="store_true",
 133         dest='undefined_sanitizer',
 134         default=False)
 135     gr.add_option('--enable-libfuzzer',
 136                   help=("Build fuzzing binaries (use ADDITIONAL_CFLAGS to specify compiler options for libFuzzer or use CC=honggfuzz/hfuzz-cc)"),
 137                   action="store_true", dest='enable_libfuzzer', default=False)
 138     gr.add_option('--enable-afl-fuzzer',
 139                   help=("Build fuzzing binaries AFL-style (typically use with CC=afl-gcc)"),
 140                   action="store_true", dest='enable_afl_fuzzer', default=False)
 141
 142     # Fuzz targets may need additional LDFLAGS that we can't use on
 143     # internal binaries like asn1_compile
 144
 145     gr.add_option('--fuzz-target-ldflags',
 146                   help=("Linker flags to be used when building fuzz targets"),
 147                   action="store", dest='FUZZ_TARGET_LDFLAGS', default='')
 148
 149     gr.add_option('--abi-check',
 150                    help=("Check ABI signatures for libraries"),
 151                    action='store_true', dest='ABI_CHECK', default=False)
 152     gr.add_option('--abi-check-disable',
 153                    help=("Disable ABI checking (used with --enable-developer)"),
 154                    action='store_true', dest='ABI_CHECK_DISABLE', default=False)
 155     gr.add_option('--abi-update',
 156                    help=("Update ABI signature files for libraries"),
 157                    action='store_true', dest='ABI_UPDATE', default=False)
 158
 159     gr.add_option('--show-deps',
 160                    help=("Show dependency tree for the given target"),
 161                    dest='SHOWDEPS', default='')
 162
 163     gr.add_option('--symbol-check',
 164                   help=("check symbols in object files against project rules"),
 165                   action='store_true', dest='SYMBOLCHECK', default=False)
 166
 167     gr.add_option('--dup-symbol-check',
 168                   help=("check for duplicate symbols in object files and system libs (must be configured with --enable-developer)"),
 169                   action='store_true', dest='DUP_SYMBOLCHECK', default=False)
 170
 171     gr.add_option('--why-needed',
 172                   help=("TARGET:DEPENDENCY check why TARGET needs DEPENDENCY"),
 173                   action='store', type='str', dest='WHYNEEDED', default=None)
 174
 175     gr.add_option('--show-duplicates',
 176                   help=("Show objects which are included in multiple binaries or libraries"),
 177                   action='store_true', dest='SHOW_DUPLICATES', default=False)
 178
 179     gr = opt.add_option_group('cross compilation options')
 180
 181     gr.add_option('--cross-compile',
 182                    help=("configure for cross-compilation"),
 183                    action='store_true', dest='CROSS_COMPILE', default=False)
 184     gr.add_option('--cross-execute',
 185                    help=("command prefix to use for cross-execution in configure"),
 186                    action='store', dest='CROSS_EXECUTE', default='')
 187     gr.add_option('--cross-answers',
 188                    help=("answers to cross-compilation configuration (auto modified)"),
 189                    action='store', dest='CROSS_ANSWERS', default='')
 190     gr.add_option('--hostcc',
 191                    help=("set host compiler when cross compiling"),
 192                    action='store', dest='HOSTCC', default=False)
 193
 194     # we use SUPPRESS_HELP for these, as they are ignored, and are there only
 195     # to allow existing RPM spec files to work
 196     opt.add_option('--build',
 197                    help=SUPPRESS_HELP,
 198                    action='store', dest='AUTOCONF_BUILD', default='')
 199     opt.add_option('--host',
 200                    help=SUPPRESS_HELP,
 201                    action='store', dest='AUTOCONF_HOST', default='')
 202     opt.add_option('--target',
 203                    help=SUPPRESS_HELP,
 204                    action='store', dest='AUTOCONF_TARGET', default='')
 205     opt.add_option('--program-prefix',
 206                    help=SUPPRESS_HELP,
 207                    action='store', dest='AUTOCONF_PROGRAM_PREFIX', default='')
 208     opt.add_option('--disable-dependency-tracking',
 209                    help=SUPPRESS_HELP,
 210                    action='store_true', dest='AUTOCONF_DISABLE_DEPENDENCY_TRACKING', default=False)
 211     opt.add_option('--disable-silent-rules',
 212                    help=SUPPRESS_HELP,
 213                    action='store_true', dest='AUTOCONF_DISABLE_SILENT_RULES', default=False)
 214
 215     gr = opt.option_group('dist options')
 216     gr.add_option('--sign-release',
 217                    help='sign the release tarball created by waf dist',
 218                    action='store_true', dest='SIGN_RELEASE')
 219     gr.add_option('--tag',
 220                    help='tag release in git at the same time',
 221                    type='string', action='store', dest='TAG_RELEASE')
 222
 223     opt.add_option('--disable-python',
 224                     help='do not generate python modules',
 225                     action='store_true', dest='disable_python', default=False)
 226
 227
 228 @Utils.run_once
 229 def configure(conf):
 230     conf.env.hlist = []
 231     conf.env.srcdir = conf.srcnode.abspath()
 232
 233     conf.define('SRCDIR', conf.env['srcdir'])
 234
 235     conf.SETUP_CONFIGURE_CACHE(Options.options.enable_configure_cache)
 236
 237     # load our local waf extensions
 238     conf.load('gnu_dirs')
 239     conf.load('wafsamba')
 240
 241     conf.CHECK_CC_ENV()
 242
 243     conf.load('compiler_c')
 244
 245     conf.CHECK_STANDARD_LIBPATH()
 246
 247     # we need git for 'waf dist'
 248     conf.find_program('git', var='GIT')
 249
 250     # older gcc versions (< 4.4) does not work with gccdeps, so we have to see if the .d file is generated
 251     if Options.options.enable_gccdeps:
 252         # stale file removal - the configuration may pick up the old .pyc file
 253         p = os.path.join(conf.env.srcdir, 'buildtools/wafsamba/gccdeps.pyc')
 254         if os.path.exists(p):
 255             os.remove(p)
 256         conf.load('gccdeps')
 257
 258     # make the install paths available in environment
 259     conf.env.LIBDIR = Options.options.LIBDIR or '${PREFIX}/lib'
 260     conf.env.BINDIR = Options.options.BINDIR or '${PREFIX}/bin'
 261     conf.env.SBINDIR = Options.options.SBINDIR or '${PREFIX}/sbin'
 262     conf.env.MODULESDIR = Options.options.MODULESDIR
 263     conf.env.PRIVATELIBDIR = Options.options.PRIVATELIBDIR
 264     conf.env.BUNDLED_LIBS = Options.options.BUNDLED_LIBS.split(',')
 265     conf.env.SYSTEM_LIBS = ()
 266     conf.env.PRIVATE_LIBS = Options.options.PRIVATE_LIBS.split(',')
 267     conf.env.BUILTIN_LIBRARIES = Options.options.BUILTIN_LIBRARIES.split(',')
 268     conf.env.NONSHARED_BINARIES = Options.options.NONSHARED_BINARIES.split(',')
 269
 270     conf.env.PRIVATE_EXTENSION = Options.options.PRIVATE_EXTENSION
 271     conf.env.PRIVATE_EXTENSION_EXCEPTION = Options.options.PRIVATE_EXTENSION_EXCEPTION.split(',')
 272     conf.env.PRIVATE_VERSION = "%s_%s_%s" % (Context.g_module.APPNAME,
 273         Context.g_module.VERSION, conf.env.PRIVATE_EXTENSION)
 274
 275     conf.env.CROSS_COMPILE = Options.options.CROSS_COMPILE
 276     conf.env.CROSS_EXECUTE = Options.options.CROSS_EXECUTE
 277     conf.env.CROSS_ANSWERS = Options.options.CROSS_ANSWERS
 278     conf.env.HOSTCC        = Options.options.HOSTCC
 279
 280     conf.env.AUTOCONF_BUILD = Options.options.AUTOCONF_BUILD
 281     conf.env.AUTOCONF_HOST  = Options.options.AUTOCONF_HOST
 282     conf.env.AUTOCONF_PROGRAM_PREFIX = Options.options.AUTOCONF_PROGRAM_PREFIX
 283
 284     conf.env.disable_python = Options.options.disable_python
 285
 286     if (conf.env.AUTOCONF_HOST and
 287         conf.env.AUTOCONF_BUILD and
 288         conf.env.AUTOCONF_BUILD != conf.env.AUTOCONF_HOST):
 289         Logs.error('ERROR: Mismatch between --build and --host. Please use --cross-compile instead')
 290         sys.exit(1)
 291     if conf.env.AUTOCONF_PROGRAM_PREFIX:
 292         Logs.error('ERROR: --program-prefix not supported')
 293         sys.exit(1)
 294
 295     # enable ABI checking for developers
 296     conf.env.ABI_CHECK = Options.options.ABI_CHECK or Options.options.developer
 297     if Options.options.ABI_CHECK_DISABLE:
 298         conf.env.ABI_CHECK = False
 299     try:
 300         conf.find_program('gdb', mandatory=True)
 301     except:
 302         conf.env.ABI_CHECK = False
 303
 304     conf.env.enable_coverage = Options.options.enable_coverage
 305     if conf.env.enable_coverage:
 306         conf.ADD_LDFLAGS('-lgcov', testflags=True)
 307         conf.ADD_CFLAGS('--coverage', testflags=True)
 308         # disable abi check for coverage, otherwise ld will fail
 309         conf.env.ABI_CHECK = False
 310
 311     conf.env.GIT_LOCAL_CHANGES = Options.options.GIT_LOCAL_CHANGES
 312
 313     conf.CHECK_UNAME()
 314
 315     # see if we can compile and run a simple C program
 316     conf.CHECK_CODE('printf("hello world")',
 317                     define='HAVE_SIMPLE_C_PROG',
 318                     mandatory=True,
 319                     execute=True,
 320                     headers='stdio.h',
 321                     msg='Checking simple C program')
 322
 323     # Try to find the right extra flags for -Werror behaviour
 324     for f in ["-Werror",       # GCC
 325               "-errwarn=%all", # Sun Studio
 326               "-qhalt=w",     # IBM xlc
 327               "-w2",           # Tru64
 328              ]:
 329         if conf.CHECK_CFLAGS([f]):
 330             if not 'WERROR_CFLAGS' in conf.env:
 331                 conf.env['WERROR_CFLAGS'] = []
 332             conf.env['WERROR_CFLAGS'].extend([f])
 333             break
 334
 335     # check which compiler/linker flags are needed for rpath support
 336     if conf.CHECK_LDFLAGS(['-Wl,-rpath,.']):
 337         conf.env['RPATH_ST'] = '-Wl,-rpath,%s'
 338     elif conf.CHECK_LDFLAGS(['-Wl,-R,.']):
 339         conf.env['RPATH_ST'] = '-Wl,-R,%s'
 340
 341     # check for rpath
 342     if conf.CHECK_LIBRARY_SUPPORT(rpath=True):
 343         support_rpath = True
 344         conf.env.RPATH_ON_BUILD   = not Options.options.disable_rpath_build
 345         conf.env.RPATH_ON_INSTALL = (conf.env.RPATH_ON_BUILD and
 346                                      not Options.options.disable_rpath_install)
 347         if not conf.env.PRIVATELIBDIR:
 348             conf.env.PRIVATELIBDIR = '%s/%s' % (conf.env.LIBDIR, Context.g_module.APPNAME)
 349         conf.env.RPATH_ON_INSTALL_PRIVATE = (
 350             not Options.options.disable_rpath_private_install)
 351     else:
 352         support_rpath = False
 353         conf.env.RPATH_ON_INSTALL = False
 354         conf.env.RPATH_ON_BUILD   = False
 355         conf.env.RPATH_ON_INSTALL_PRIVATE = False
 356         if not conf.env.PRIVATELIBDIR:
 357             # rpath is not possible so there is no sense in having a
 358             # private library directory by default.
 359             # the user can of course always override it.
 360             conf.env.PRIVATELIBDIR = conf.env.LIBDIR
 361
 362     if (not Options.options.disable_symbol_versions and
 363         conf.CHECK_LIBRARY_SUPPORT(rpath=support_rpath,
 364                                    version_script=True,
 365                                    msg='-Wl,--version-script support')):
 366         conf.env.HAVE_LD_VERSION_SCRIPT = True
 367     else:
 368         conf.env.HAVE_LD_VERSION_SCRIPT = False
 369
 370     if conf.CHECK_CFLAGS(['-fvisibility=hidden']):
 371         conf.env.VISIBILITY_CFLAGS = '-fvisibility=hidden'
 372         conf.CHECK_CODE('''int main(void) { return 0; }
 373                            __attribute__((visibility("default"))) void vis_foo2(void) {}\n''',
 374                         cflags=conf.env.VISIBILITY_CFLAGS,
 375                         strict=True,
 376                         define='HAVE_VISIBILITY_ATTR', addmain=False)
 377
 378     # check HAVE_CONSTRUCTOR_ATTRIBUTE
 379     conf.CHECK_CODE('''
 380             void test_constructor_attribute(void) __attribute__ ((constructor));
 381
 382             void test_constructor_attribute(void)
 383             {
 384                 return;
 385             }
 386
 387             int main(void) {
 388                 return 0;
 389             }
 390             ''',
 391             'HAVE_CONSTRUCTOR_ATTRIBUTE',
 392             addmain=False,
 393             strict=True,
 394             msg='Checking for library constructor support')
 395
 396     # check HAVE_PRAGMA_INIT alternatively
 397     if not conf.env.HAVE_CONSTRUCTOR_ATTRIBUTE:
 398             conf.CHECK_CODE('''
 399                 #pragma init (test_init)
 400
 401                 void test_init(void)
 402                 {
 403                     return;
 404                 }
 405
 406                 int main(void) {
 407                     return 0;
 408                 }
 409                 ''',
 410                 'HAVE_PRAGMA_INIT',
 411                 addmain=False,
 412                 strict=True,
 413                 msg='Checking for pragma init support')
 414
 415     # check HAVE_DESTRUCTOR_ATTRIBUTE
 416     conf.CHECK_CODE('''
 417             void test_destructor_attribute(void) __attribute__ ((destructor));
 418
 419             void test_destructor_attribute(void)
 420             {
 421                 return;
 422             }
 423
 424             int main(void) {
 425                 return 0;
 426             }
 427             ''',
 428             'HAVE_DESTRUCTOR_ATTRIBUTE',
 429             addmain=False,
 430             strict=True,
 431             msg='Checking for library destructor support')
 432
 433     # check HAVE_PRAGMA_FINI alternatively
 434     if not conf.env.HAVE_DESTRUCTOR_ATTRIBUTE:
 435             conf.CHECK_CODE('''
 436                 #pragma fini (test_fini)
 437
 438                 void test_fini(void)
 439                 {
 440                     return;
 441                 }
 442
 443                 int main(void) {
 444                     return 0;
 445                 }
 446                 ''',
 447                 'HAVE_PRAGMA_FINI',
 448                 addmain=False,
 449                 strict=True,
 450                 msg='Checking for pragma fini support')
 451
 452     conf.CHECK_CODE('''
 453             void test_attribute(void) __attribute__ (());
 454
 455             void test_attribute(void)
 456             {
 457                 return;
 458             }
 459
 460             int main(void) {
 461                 return 0;
 462             }
 463             ''',
 464             'HAVE___ATTRIBUTE__',
 465             addmain=False,
 466             strict=True,
 467             msg='Checking for __attribute__')
 468
 469     # Solaris by defauls uses draft versions of some functions unless you set _POSIX_PTHREAD_SEMANTICS
 470     if sys.platform.startswith('sunos'):
 471         conf.DEFINE('_POSIX_PTHREAD_SEMANTICS', 1)
 472
 473     if sys.platform.startswith('aix'):
 474         conf.DEFINE('_ALL_SOURCE', 1, add_to_cflags=True)
 475         # Might not be needed if ALL_SOURCE is defined
 476         # conf.DEFINE('_XOPEN_SOURCE', 600, add_to_cflags=True)
 477
 478     # we should use the PIC options in waf instead
 479     # Some compilo didn't support -fPIC but just print a warning
 480     if conf.env['COMPILER_CC'] == "suncc":
 481         conf.ADD_CFLAGS('-KPIC', testflags=True)
 482         # we really want define here as we need to have this
 483         # define even during the tests otherwise detection of
 484         # boolean is broken
 485         conf.DEFINE('_STDC_C99', 1, add_to_cflags=True)
 486         conf.DEFINE('_XPG6', 1, add_to_cflags=True)
 487     else:
 488         conf.ADD_CFLAGS('-fPIC', testflags=True)
 489
 490     # On Solaris 8 with suncc (at least) the flags for the linker to define the name of the
 491     # library are not always working (if the command line is very very long and with a lot
 492     # files)
 493
 494     if conf.env['COMPILER_CC'] == "suncc":
 495         save = conf.env['SONAME_ST']
 496         conf.env['SONAME_ST'] = '-Wl,-h,%s'
 497         if not conf.CHECK_SHLIB_INTRASINC_NAME_FLAGS("Checking if flags %s are ok" % conf.env['SONAME_ST']):
 498             conf.env['SONAME_ST'] = save
 499
 500     conf.CHECK_INLINE()
 501
 502     # check for pkgconfig
 503     conf.CHECK_CFG(atleast_pkgconfig_version='0.0.0')
 504
 505     conf.DEFINE('_GNU_SOURCE', 1, add_to_cflags=True)
 506     conf.DEFINE('_XOPEN_SOURCE_EXTENDED', 1, add_to_cflags=True)
 507
 508     #
 509     # Needs to be defined before std*.h and string*.h are included
 510     # As Python.h already brings string.h we need it in CFLAGS.
 511     # See memset_s() details here:
 512     # https://en.cppreference.com/w/c/string/byte/memset
 513     #
 514     if conf.CHECK_CFLAGS(['-D__STDC_WANT_LIB_EXT1__=1']):
 515         conf.ADD_CFLAGS('-D__STDC_WANT_LIB_EXT1__=1')
 516
 517     # on Tru64 certain features are only available with _OSF_SOURCE set to 1
 518     # and _XOPEN_SOURCE set to 600
 519     if conf.env['SYSTEM_UNAME_SYSNAME'] == 'OSF1':
 520         conf.DEFINE('_OSF_SOURCE', 1, add_to_cflags=True)
 521         conf.DEFINE('_XOPEN_SOURCE', 600, add_to_cflags=True)
 522
 523     # SCM_RIGHTS is only avail if _XOPEN_SOURCE iѕ defined on IRIX
 524     if conf.env['SYSTEM_UNAME_SYSNAME'] == 'IRIX':
 525         conf.DEFINE('_XOPEN_SOURCE', 600, add_to_cflags=True)
 526         conf.DEFINE('_BSD_TYPES', 1, add_to_cflags=True)
 527
 528     # Try to find the right extra flags for C99 initialisers
 529     for f in ["", "-AC99", "-qlanglvl=extc99", "-qlanglvl=stdc99", "-c99"]:
 530         if conf.CHECK_CFLAGS([f], '''
 531 struct foo {int x;char y;};
 532 struct foo bar = { .y = 'X', .x = 1 };
 533 '''):
 534             if f != "":
 535                 conf.ADD_CFLAGS(f)
 536             break
 537
 538     # get the base headers we'll use for the rest of the tests
 539     conf.CHECK_HEADERS('stdio.h sys/types.h sys/stat.h stdlib.h stddef.h memory.h string.h',
 540                        add_headers=True)
 541     conf.CHECK_HEADERS('strings.h inttypes.h stdint.h unistd.h minix/config.h', add_headers=True)
 542     conf.CHECK_HEADERS('ctype.h', add_headers=True)
 543
 544     if sys.platform == 'darwin':
 545         conf.DEFINE('_DARWIN_C_SOURCE', 1, add_to_cflags=True)
 546         conf.DEFINE('_DARWIN_UNLIMITED_GETGROUPS', 1, add_to_cflags=True)
 547     else:
 548         conf.CHECK_HEADERS('standards.h', add_headers=True)
 549
 550     conf.CHECK_HEADERS('stdbool.h stdint.h stdarg.h vararg.h', add_headers=True)
 551     conf.CHECK_HEADERS('limits.h assert.h')
 552
 553     # see if we need special largefile flags
 554     if not conf.CHECK_LARGEFILE():
 555         raise Errors.WafError('Samba requires large file support support, but not available on this platform: sizeof(off_t) < 8')
 556
 557     if conf.env.HAVE_STDDEF_H and conf.env.HAVE_STDLIB_H:
 558         conf.DEFINE('STDC_HEADERS', 1)
 559
 560     conf.CHECK_HEADERS('sys/time.h time.h', together=True)
 561
 562     if conf.env.HAVE_SYS_TIME_H and conf.env.HAVE_TIME_H:
 563         conf.DEFINE('TIME_WITH_SYS_TIME', 1)
 564
 565     # cope with different extensions for libraries
 566     (root, ext) = os.path.splitext(conf.env.cshlib_PATTERN)
 567     if ext[0] == '.':
 568         conf.define('SHLIBEXT', ext[1:], quote=True)
 569     else:
 570         conf.define('SHLIBEXT', "so", quote=True)
 571
 572     # First try a header check for cross-compile friendlyness
 573     conf.CHECK_CODE(code = """#ifdef __BYTE_ORDER
 574                         #define B __BYTE_ORDER
 575                         #elif defined(BYTE_ORDER)
 576                         #define B BYTE_ORDER
 577                         #endif
 578
 579                         #ifdef __LITTLE_ENDIAN
 580                         #define LITTLE __LITTLE_ENDIAN
 581                         #elif defined(LITTLE_ENDIAN)
 582                         #define LITTLE LITTLE_ENDIAN
 583                         #endif
 584
 585                         #if !defined(LITTLE) || !defined(B) || LITTLE != B
 586                         #error Not little endian.
 587                         #endif
 588                         int main(void) { return 0; }\n""",
 589                             addmain=False,
 590                             headers="endian.h sys/endian.h",
 591                             define="HAVE_LITTLE_ENDIAN")
 592     conf.CHECK_CODE(code = """#ifdef __BYTE_ORDER
 593                         #define B __BYTE_ORDER
 594                         #elif defined(BYTE_ORDER)
 595                         #define B BYTE_ORDER
 596                         #endif
 597
 598                         #ifdef __BIG_ENDIAN
 599                         #define BIG __BIG_ENDIAN
 600                         #elif defined(BIG_ENDIAN)
 601                         #define BIG BIG_ENDIAN
 602                         #endif
 603
 604                         #if !defined(BIG) || !defined(B) || BIG != B
 605                         #error Not big endian.
 606                         #endif
 607                         int main(void) { return 0; }\n""",
 608                             addmain=False,
 609                             headers="endian.h sys/endian.h",
 610                             define="HAVE_BIG_ENDIAN")
 611
 612     if not conf.CONFIG_SET("HAVE_BIG_ENDIAN") and not conf.CONFIG_SET("HAVE_LITTLE_ENDIAN"):
 613         # That didn't work!  Do runtime test.
 614         conf.CHECK_CODE("""union { int i; char c[sizeof(int)]; } u;
 615             u.i = 0x01020304;
 616             return u.c[0] == 0x04 && u.c[1] == 0x03 && u.c[2] == 0x02 && u.c[3] == 0x01 ? 0 : 1;""",
 617                           addmain=True, execute=True,
 618                           define='HAVE_LITTLE_ENDIAN',
 619                           msg="Checking for HAVE_LITTLE_ENDIAN - runtime")
 620         conf.CHECK_CODE("""union { int i; char c[sizeof(int)]; } u;
 621             u.i = 0x01020304;
 622             return u.c[0] == 0x01 && u.c[1] == 0x02 && u.c[2] == 0x03 && u.c[3] == 0x04 ? 0 : 1;""",
 623                           addmain=True, execute=True,
 624                           define='HAVE_BIG_ENDIAN',
 625                           msg="Checking for HAVE_BIG_ENDIAN - runtime")
 626
 627     # Extra sanity check.
 628     if conf.CONFIG_SET("HAVE_BIG_ENDIAN") == conf.CONFIG_SET("HAVE_LITTLE_ENDIAN"):
 629         Logs.error("Failed endian determination.  The PDP-11 is back?")
 630         sys.exit(1)
 631     else:
 632         if conf.CONFIG_SET("HAVE_BIG_ENDIAN"):
 633             conf.DEFINE('WORDS_BIGENDIAN', 1)
 634
 635     # check if signal() takes a void function
 636     if conf.CHECK_CODE('return *(signal (0, 0)) (0) == 1',
 637                        define='RETSIGTYPE_INT',
 638                        execute=False,
 639                        headers='signal.h',
 640                        msg='Checking if signal handlers return int'):
 641         conf.DEFINE('RETSIGTYPE', 'int')
 642     else:
 643         conf.DEFINE('RETSIGTYPE', 'void')
 644
 645     conf.CHECK_VARIABLE('__FUNCTION__', define='HAVE_FUNCTION_MACRO')
 646
 647     conf.CHECK_CODE('va_list ap1,ap2; va_copy(ap1,ap2)',
 648                     define="HAVE_VA_COPY",
 649                     msg="Checking for va_copy")
 650
 651     conf.CHECK_CODE('''
 652                     #define eprintf(...) fprintf(stderr, __VA_ARGS__)
 653                     eprintf("bla", "bar")
 654                     ''', define='HAVE__VA_ARGS__MACRO')
 655
 656     conf.env.enable_fuzzing = False
 657
 658     conf.env.enable_libfuzzer = Options.options.enable_libfuzzer
 659     conf.env.enable_afl_fuzzer = Options.options.enable_afl_fuzzer
 660     if conf.env.enable_libfuzzer or conf.env.enable_afl_fuzzer:
 661         conf.env.enable_fuzzing = True
 662         conf.DEFINE('FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION', 1)
 663         conf.env.FUZZ_TARGET_LDFLAGS = Options.options.FUZZ_TARGET_LDFLAGS
 664
 665     # Create a symlink of the compile db for clangd
 666     symlink(os.path.join(conf.bldnode.abspath(), 'default/compile_commands.json'),
 667             os.path.join(conf.srcnode.abspath(), 'compile_commands.json'),
 668             force=True)
 669
 670     conf.SAMBA_BUILD_ENV()
 671
 672
 673 def build(bld):
 674     # give a more useful message if the source directory has moved
 675     curdir = bld.path.abspath()
 676     srcdir = bld.srcnode.abspath()
 677     relpath = os.path.relpath(curdir, srcdir)
 678     if relpath.find('../') != -1:
 679         Logs.error('bld.path %s is not a child of %s' % (curdir, srcdir))
 680         raise Errors.WafError('''The top source directory has moved. Please run distclean and reconfigure''')
 681
 682     bld.SETUP_BUILD_GROUPS()
 683     bld.ENFORCE_GROUP_ORDERING()
 684     bld.CHECK_PROJECT_RULES()