3 # this is a base set of waf rules that everything else pulls in first
6 from waflib import Configure, Logs, Options, Utils, Context, Errors
8 from samba_utils import os_path_relpath
9 from optparse import SUPPRESS_HELP
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'
20 def default_value(option, default=''):
21 if option in Options.options.__dict__:
22 return Options.options.__dict__[option]
26 opt.load('compiler_cc')
30 gr = opt.option_group('library handling options')
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='')
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. Can be 'NONE' or 'ALL' [auto]"),
38 action="store", dest='PRIVATE_LIBS', default='')
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)
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)
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)
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='')
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)
75 opt.add_option('--with-modulesdir',
76 help=("modules directory [PREFIX/modules]"),
77 action="store", dest='MODULESDIR', default='${PREFIX}/modules')
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)
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)
91 gr = opt.option_group('developer options')
94 help='enable configure cacheing',
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 opt.add_option('--enable-coverage',
106 help=("enable options necessary for code coverage "
107 "reporting on selftest (default=no)"),
108 action="store_true", dest='enable_coverage', default=False)
109 def picky_developer_callback(option, opt_str, value, parser):
110 parser.values.developer = True
111 parser.values.picky_developer = True
112 gr.add_option('--picky-developer',
113 help=("Treat all warnings as errors (enable -Werror)"),
114 action="callback", callback=picky_developer_callback,
115 dest='picky_developer', default=False)
116 gr.add_option('--fatal-errors',
117 help=("Stop compilation on first error (enable -Wfatal-errors)"),
118 action="store_true", dest='fatal_errors', default=False)
119 gr.add_option('--enable-gccdeps',
120 help=("Enable use of gcc -MD dependency module"),
121 action="store_true", dest='enable_gccdeps', default=True)
122 gr.add_option('--pedantic',
123 help=("Enable even more compiler warnings"),
124 action='store_true', dest='pedantic', default=False)
125 gr.add_option('--git-local-changes',
126 help=("mark version with + if local git changes"),
127 action='store_true', dest='GIT_LOCAL_CHANGES', default=False)
128 gr.add_option('--address-sanitizer',
129 help=("Enable address sanitizer compile and linker flags"),
130 action="store_true", dest='address_sanitizer', default=False)
131 gr.add_option('--undefined-sanitizer',
132 help=("Enable undefined behaviour sanitizer compile and linker flags"),
134 dest='undefined_sanitizer',
137 gr.add_option('--abi-check',
138 help=("Check ABI signatures for libraries"),
139 action='store_true', dest='ABI_CHECK', default=False)
140 gr.add_option('--abi-check-disable',
141 help=("Disable ABI checking (used with --enable-developer)"),
142 action='store_true', dest='ABI_CHECK_DISABLE', default=False)
143 gr.add_option('--abi-update',
144 help=("Update ABI signature files for libraries"),
145 action='store_true', dest='ABI_UPDATE', default=False)
147 gr.add_option('--show-deps',
148 help=("Show dependency tree for the given target"),
149 dest='SHOWDEPS', default='')
151 gr.add_option('--symbol-check',
152 help=("check symbols in object files against project rules"),
153 action='store_true', dest='SYMBOLCHECK', default=False)
155 gr.add_option('--dup-symbol-check',
156 help=("check for duplicate symbols in object files and system libs (must be configured with --enable-developer)"),
157 action='store_true', dest='DUP_SYMBOLCHECK', default=False)
159 gr.add_option('--why-needed',
160 help=("TARGET:DEPENDENCY check why TARGET needs DEPENDENCY"),
161 action='store', type='str', dest='WHYNEEDED', default=None)
163 gr.add_option('--show-duplicates',
164 help=("Show objects which are included in multiple binaries or libraries"),
165 action='store_true', dest='SHOW_DUPLICATES', default=False)
167 gr = opt.add_option_group('cross compilation options')
169 gr.add_option('--cross-compile',
170 help=("configure for cross-compilation"),
171 action='store_true', dest='CROSS_COMPILE', default=False)
172 gr.add_option('--cross-execute',
173 help=("command prefix to use for cross-execution in configure"),
174 action='store', dest='CROSS_EXECUTE', default='')
175 gr.add_option('--cross-answers',
176 help=("answers to cross-compilation configuration (auto modified)"),
177 action='store', dest='CROSS_ANSWERS', default='')
178 gr.add_option('--hostcc',
179 help=("set host compiler when cross compiling"),
180 action='store', dest='HOSTCC', default=False)
182 # we use SUPPRESS_HELP for these, as they are ignored, and are there only
183 # to allow existing RPM spec files to work
184 opt.add_option('--build',
186 action='store', dest='AUTOCONF_BUILD', default='')
187 opt.add_option('--host',
189 action='store', dest='AUTOCONF_HOST', default='')
190 opt.add_option('--target',
192 action='store', dest='AUTOCONF_TARGET', default='')
193 opt.add_option('--program-prefix',
195 action='store', dest='AUTOCONF_PROGRAM_PREFIX', default='')
196 opt.add_option('--disable-dependency-tracking',
198 action='store_true', dest='AUTOCONF_DISABLE_DEPENDENCY_TRACKING', default=False)
199 opt.add_option('--disable-silent-rules',
201 action='store_true', dest='AUTOCONF_DISABLE_SILENT_RULES', default=False)
203 gr = opt.option_group('dist options')
204 gr.add_option('--sign-release',
205 help='sign the release tarball created by waf dist',
206 action='store_true', dest='SIGN_RELEASE')
207 gr.add_option('--tag',
208 help='tag release in git at the same time',
209 type='string', action='store', dest='TAG_RELEASE')
211 opt.add_option('--disable-python',
212 help='do not generate python modules',
213 action='store_true', dest='disable_python', default=False)
219 conf.env.srcdir = conf.srcnode.abspath()
221 conf.define('SRCDIR', conf.env['srcdir'])
223 conf.SETUP_CONFIGURE_CACHE(Options.options.enable_configure_cache)
225 # load our local waf extensions
226 conf.load('gnu_dirs')
227 conf.load('wafsamba')
231 conf.load('compiler_c')
233 conf.CHECK_STANDARD_LIBPATH()
235 # we need git for 'waf dist'
236 conf.find_program('git', var='GIT')
238 # older gcc versions (< 4.4) does not work with gccdeps, so we have to see if the .d file is generated
239 if Options.options.enable_gccdeps:
240 # stale file removal - the configuration may pick up the old .pyc file
241 p = os.path.join(conf.env.srcdir, 'buildtools/wafsamba/gccdeps.pyc')
242 if os.path.exists(p):
246 # make the install paths available in environment
247 conf.env.LIBDIR = Options.options.LIBDIR or '${PREFIX}/lib'
248 conf.env.BINDIR = Options.options.BINDIR or '${PREFIX}/bin'
249 conf.env.SBINDIR = Options.options.SBINDIR or '${PREFIX}/sbin'
250 conf.env.MODULESDIR = Options.options.MODULESDIR
251 conf.env.PRIVATELIBDIR = Options.options.PRIVATELIBDIR
252 conf.env.BUNDLED_LIBS = Options.options.BUNDLED_LIBS.split(',')
253 conf.env.SYSTEM_LIBS = ()
254 conf.env.PRIVATE_LIBS = Options.options.PRIVATE_LIBS.split(',')
255 conf.env.BUILTIN_LIBRARIES = Options.options.BUILTIN_LIBRARIES.split(',')
256 conf.env.NONSHARED_BINARIES = Options.options.NONSHARED_BINARIES.split(',')
258 conf.env.PRIVATE_EXTENSION = Options.options.PRIVATE_EXTENSION
259 conf.env.PRIVATE_EXTENSION_EXCEPTION = Options.options.PRIVATE_EXTENSION_EXCEPTION.split(',')
261 conf.env.CROSS_COMPILE = Options.options.CROSS_COMPILE
262 conf.env.CROSS_EXECUTE = Options.options.CROSS_EXECUTE
263 conf.env.CROSS_ANSWERS = Options.options.CROSS_ANSWERS
264 conf.env.HOSTCC = Options.options.HOSTCC
266 conf.env.AUTOCONF_BUILD = Options.options.AUTOCONF_BUILD
267 conf.env.AUTOCONF_HOST = Options.options.AUTOCONF_HOST
268 conf.env.AUTOCONF_PROGRAM_PREFIX = Options.options.AUTOCONF_PROGRAM_PREFIX
270 conf.env.disable_python = Options.options.disable_python
272 if (conf.env.AUTOCONF_HOST and
273 conf.env.AUTOCONF_BUILD and
274 conf.env.AUTOCONF_BUILD != conf.env.AUTOCONF_HOST):
275 Logs.error('ERROR: Mismatch between --build and --host. Please use --cross-compile instead')
277 if conf.env.AUTOCONF_PROGRAM_PREFIX:
278 Logs.error('ERROR: --program-prefix not supported')
281 # enable ABI checking for developers
282 conf.env.ABI_CHECK = Options.options.ABI_CHECK or Options.options.developer
283 if Options.options.ABI_CHECK_DISABLE:
284 conf.env.ABI_CHECK = False
286 conf.find_program('gdb', mandatory=True)
288 conf.env.ABI_CHECK = False
290 conf.env.enable_coverage = Options.options.enable_coverage
291 if conf.env.enable_coverage:
292 conf.ADD_LDFLAGS('-lgcov', testflags=True)
293 conf.ADD_CFLAGS('--coverage', testflags=True)
294 # disable abi check for coverage, otherwise ld will fail
295 conf.env.ABI_CHECK = False
297 conf.env.GIT_LOCAL_CHANGES = Options.options.GIT_LOCAL_CHANGES
301 # see if we can compile and run a simple C program
302 conf.CHECK_CODE('printf("hello world")',
303 define='HAVE_SIMPLE_C_PROG',
307 msg='Checking simple C program')
309 # Try to find the right extra flags for -Werror behaviour
310 for f in ["-Werror", # GCC
311 "-errwarn=%all", # Sun Studio
312 "-qhalt=w", # IBM xlc
315 if conf.CHECK_CFLAGS([f]):
316 if not 'WERROR_CFLAGS' in conf.env:
317 conf.env['WERROR_CFLAGS'] = []
318 conf.env['WERROR_CFLAGS'].extend([f])
321 # check which compiler/linker flags are needed for rpath support
322 if conf.CHECK_LDFLAGS(['-Wl,-rpath,.']):
323 conf.env['RPATH_ST'] = '-Wl,-rpath,%s'
324 elif conf.CHECK_LDFLAGS(['-Wl,-R,.']):
325 conf.env['RPATH_ST'] = '-Wl,-R,%s'
328 if conf.CHECK_LIBRARY_SUPPORT(rpath=True):
330 conf.env.RPATH_ON_BUILD = not Options.options.disable_rpath_build
331 conf.env.RPATH_ON_INSTALL = (conf.env.RPATH_ON_BUILD and
332 not Options.options.disable_rpath_install)
333 if not conf.env.PRIVATELIBDIR:
334 conf.env.PRIVATELIBDIR = '%s/%s' % (conf.env.LIBDIR, Context.g_module.APPNAME)
335 conf.env.RPATH_ON_INSTALL_PRIVATE = (
336 not Options.options.disable_rpath_private_install)
338 support_rpath = False
339 conf.env.RPATH_ON_INSTALL = False
340 conf.env.RPATH_ON_BUILD = False
341 conf.env.RPATH_ON_INSTALL_PRIVATE = False
342 if not conf.env.PRIVATELIBDIR:
343 # rpath is not possible so there is no sense in having a
344 # private library directory by default.
345 # the user can of course always override it.
346 conf.env.PRIVATELIBDIR = conf.env.LIBDIR
348 if (not Options.options.disable_symbol_versions and
349 conf.CHECK_LIBRARY_SUPPORT(rpath=support_rpath,
351 msg='-Wl,--version-script support')):
352 conf.env.HAVE_LD_VERSION_SCRIPT = True
354 conf.env.HAVE_LD_VERSION_SCRIPT = False
356 if conf.CHECK_CFLAGS(['-fvisibility=hidden']):
357 conf.env.VISIBILITY_CFLAGS = '-fvisibility=hidden'
358 conf.CHECK_CODE('''int main(void) { return 0; }
359 __attribute__((visibility("default"))) void vis_foo2(void) {}\n''',
360 cflags=conf.env.VISIBILITY_CFLAGS,
362 define='HAVE_VISIBILITY_ATTR', addmain=False)
364 # check HAVE_CONSTRUCTOR_ATTRIBUTE
366 void test_constructor_attribute(void) __attribute__ ((constructor));
368 void test_constructor_attribute(void)
377 'HAVE_CONSTRUCTOR_ATTRIBUTE',
380 msg='Checking for library constructor support')
382 # check HAVE_DESTRUCTOR_ATTRIBUTE
384 void test_destructor_attribute(void) __attribute__ ((destructor));
386 void test_destructor_attribute(void)
395 'HAVE_DESTRUCTOR_ATTRIBUTE',
398 msg='Checking for library destructor support')
401 void test_attribute(void) __attribute__ (());
403 void test_attribute(void)
412 'HAVE___ATTRIBUTE__',
415 msg='Checking for __attribute__')
417 if sys.platform.startswith('aix'):
418 conf.DEFINE('_ALL_SOURCE', 1, add_to_cflags=True)
419 # Might not be needed if ALL_SOURCE is defined
420 # conf.DEFINE('_XOPEN_SOURCE', 600, add_to_cflags=True)
422 # we should use the PIC options in waf instead
423 # Some compilo didn't support -fPIC but just print a warning
424 if conf.env['COMPILER_CC'] == "suncc":
425 conf.ADD_CFLAGS('-KPIC', testflags=True)
426 # we really want define here as we need to have this
427 # define even during the tests otherwise detection of
429 conf.DEFINE('_STDC_C99', 1, add_to_cflags=True)
430 conf.DEFINE('_XPG6', 1, add_to_cflags=True)
432 conf.ADD_CFLAGS('-fPIC', testflags=True)
434 # On Solaris 8 with suncc (at least) the flags for the linker to define the name of the
435 # library are not always working (if the command line is very very long and with a lot
438 if conf.env['COMPILER_CC'] == "suncc":
439 save = conf.env['SONAME_ST']
440 conf.env['SONAME_ST'] = '-Wl,-h,%s'
441 if not conf.CHECK_SHLIB_INTRASINC_NAME_FLAGS("Checking if flags %s are ok" % conf.env['SONAME_ST']):
442 conf.env['SONAME_ST'] = save
446 # check for pkgconfig
447 conf.CHECK_CFG(atleast_pkgconfig_version='0.0.0')
449 conf.DEFINE('_GNU_SOURCE', 1, add_to_cflags=True)
450 conf.DEFINE('_XOPEN_SOURCE_EXTENDED', 1, add_to_cflags=True)
453 # Needs to be defined before std*.h and string*.h are included
454 # As Python.h already brings string.h we need it in CFLAGS.
455 # See memset_s() details here:
456 # https://en.cppreference.com/w/c/string/byte/memset
458 if conf.CHECK_CFLAGS(['-D__STDC_WANT_LIB_EXT1__=1']):
459 conf.ADD_CFLAGS('-D__STDC_WANT_LIB_EXT1__=1')
461 # on Tru64 certain features are only available with _OSF_SOURCE set to 1
462 # and _XOPEN_SOURCE set to 600
463 if conf.env['SYSTEM_UNAME_SYSNAME'] == 'OSF1':
464 conf.DEFINE('_OSF_SOURCE', 1, add_to_cflags=True)
465 conf.DEFINE('_XOPEN_SOURCE', 600, add_to_cflags=True)
467 # SCM_RIGHTS is only avail if _XOPEN_SOURCE iѕ defined on IRIX
468 if conf.env['SYSTEM_UNAME_SYSNAME'] == 'IRIX':
469 conf.DEFINE('_XOPEN_SOURCE', 600, add_to_cflags=True)
470 conf.DEFINE('_BSD_TYPES', 1, add_to_cflags=True)
472 # Try to find the right extra flags for C99 initialisers
473 for f in ["", "-AC99", "-qlanglvl=extc99", "-qlanglvl=stdc99", "-c99"]:
474 if conf.CHECK_CFLAGS([f], '''
475 struct foo {int x;char y;};
476 struct foo bar = { .y = 'X', .x = 1 };
482 # get the base headers we'll use for the rest of the tests
483 conf.CHECK_HEADERS('stdio.h sys/types.h sys/stat.h stdlib.h stddef.h memory.h string.h',
485 conf.CHECK_HEADERS('strings.h inttypes.h stdint.h unistd.h minix/config.h', add_headers=True)
486 conf.CHECK_HEADERS('ctype.h', add_headers=True)
488 if sys.platform != 'darwin':
489 conf.CHECK_HEADERS('standards.h', add_headers=True)
491 conf.CHECK_HEADERS('stdbool.h stdint.h stdarg.h vararg.h', add_headers=True)
492 conf.CHECK_HEADERS('limits.h assert.h')
494 # see if we need special largefile flags
495 if not conf.CHECK_LARGEFILE():
496 raise Errors.WafError('Samba requires large file support support, but not available on this platform: sizeof(off_t) < 8')
498 if conf.env.HAVE_STDDEF_H and conf.env.HAVE_STDLIB_H:
499 conf.DEFINE('STDC_HEADERS', 1)
501 conf.CHECK_HEADERS('sys/time.h time.h', together=True)
503 if conf.env.HAVE_SYS_TIME_H and conf.env.HAVE_TIME_H:
504 conf.DEFINE('TIME_WITH_SYS_TIME', 1)
506 # cope with different extensions for libraries
507 (root, ext) = os.path.splitext(conf.env.cshlib_PATTERN)
509 conf.define('SHLIBEXT', ext[1:], quote=True)
511 conf.define('SHLIBEXT', "so", quote=True)
513 # First try a header check for cross-compile friendlyness
514 conf.CHECK_CODE(code = """#ifdef __BYTE_ORDER
515 #define B __BYTE_ORDER
516 #elif defined(BYTE_ORDER)
520 #ifdef __LITTLE_ENDIAN
521 #define LITTLE __LITTLE_ENDIAN
522 #elif defined(LITTLE_ENDIAN)
523 #define LITTLE LITTLE_ENDIAN
526 #if !defined(LITTLE) || !defined(B) || LITTLE != B
527 #error Not little endian.
529 int main(void) { return 0; }\n""",
531 headers="endian.h sys/endian.h",
532 define="HAVE_LITTLE_ENDIAN")
533 conf.CHECK_CODE(code = """#ifdef __BYTE_ORDER
534 #define B __BYTE_ORDER
535 #elif defined(BYTE_ORDER)
540 #define BIG __BIG_ENDIAN
541 #elif defined(BIG_ENDIAN)
542 #define BIG BIG_ENDIAN
545 #if !defined(BIG) || !defined(B) || BIG != B
546 #error Not big endian.
548 int main(void) { return 0; }\n""",
550 headers="endian.h sys/endian.h",
551 define="HAVE_BIG_ENDIAN")
553 if not conf.CONFIG_SET("HAVE_BIG_ENDIAN") and not conf.CONFIG_SET("HAVE_LITTLE_ENDIAN"):
554 # That didn't work! Do runtime test.
555 conf.CHECK_CODE("""union { int i; char c[sizeof(int)]; } u;
557 return u.c[0] == 0x04 && u.c[1] == 0x03 && u.c[2] == 0x02 && u.c[3] == 0x01 ? 0 : 1;""",
558 addmain=True, execute=True,
559 define='HAVE_LITTLE_ENDIAN',
560 msg="Checking for HAVE_LITTLE_ENDIAN - runtime")
561 conf.CHECK_CODE("""union { int i; char c[sizeof(int)]; } u;
563 return u.c[0] == 0x01 && u.c[1] == 0x02 && u.c[2] == 0x03 && u.c[3] == 0x04 ? 0 : 1;""",
564 addmain=True, execute=True,
565 define='HAVE_BIG_ENDIAN',
566 msg="Checking for HAVE_BIG_ENDIAN - runtime")
568 # Extra sanity check.
569 if conf.CONFIG_SET("HAVE_BIG_ENDIAN") == conf.CONFIG_SET("HAVE_LITTLE_ENDIAN"):
570 Logs.error("Failed endian determination. The PDP-11 is back?")
573 if conf.CONFIG_SET("HAVE_BIG_ENDIAN"):
574 conf.DEFINE('WORDS_BIGENDIAN', 1)
576 # check if signal() takes a void function
577 if conf.CHECK_CODE('return *(signal (0, 0)) (0) == 1',
578 define='RETSIGTYPE_INT',
581 msg='Checking if signal handlers return int'):
582 conf.DEFINE('RETSIGTYPE', 'int')
584 conf.DEFINE('RETSIGTYPE', 'void')
586 conf.CHECK_VARIABLE('__FUNCTION__', define='HAVE_FUNCTION_MACRO')
588 conf.CHECK_CODE('va_list ap1,ap2; va_copy(ap1,ap2)',
589 define="HAVE_VA_COPY",
590 msg="Checking for va_copy")
593 #define eprintf(...) fprintf(stderr, __VA_ARGS__)
594 eprintf("bla", "bar")
595 ''', define='HAVE__VA_ARGS__MACRO')
597 conf.SAMBA_BUILD_ENV()
601 # give a more useful message if the source directory has moved
602 curdir = bld.path.abspath()
603 srcdir = bld.srcnode.abspath()
604 relpath = os_path_relpath(curdir, srcdir)
605 if relpath.find('../') != -1:
606 Logs.error('bld.path %s is not a child of %s' % (curdir, srcdir))
607 raise Errors.WafError('''The top source directory has moved. Please run distclean and reconfigure''')
609 bld.SETUP_BUILD_GROUPS()
610 bld.ENFORCE_GROUP_ORDERING()
611 bld.CHECK_PROJECT_RULES()