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a80614fe30
This prevents --private-libraries=ALL from creating unuseable wrapper libraries, as they can't work with symbol versioning. BUG: https://bugzilla.samba.org/show_bug.cgi?id=15545 Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Björn Jacke <bjacke@samba.org> Reviewed-by: Ralph Boehme <slow@samba.org>
96 lines
4.1 KiB
Python
96 lines
4.1 KiB
Python
#!/usr/bin/env python
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import os
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from waflib import Logs
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VERSION="1.1.8"
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def configure(conf):
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if conf.CHECK_RESOLV_WRAPPER():
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conf.DEFINE('USING_SYSTEM_RESOLV_WRAPPER', 1)
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libresolv_wrapper_so_path = 'libresolv_wrapper.so'
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else:
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if conf.CONFIG_SET("HAVE___THREAD"):
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conf.DEFINE("HAVE_GCC_THREAD_LOCAL_STORAGE", 1)
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# check HAVE_ATTRIBUTE_PRINTF_FORMAT
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conf.CHECK_CODE('''
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void log_fn(const char *format, ...) __attribute__ ((format (printf, 1, 2)));
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int main(void) {
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return 0;
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}
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''',
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'HAVE_ATTRIBUTE_PRINTF_FORMAT',
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addmain=False,
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strict=True,
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msg='Checking for printf format validation support')
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conf.CHECK_HEADERS('resolv.h')
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conf.CHECK_STRUCTURE_MEMBER('struct __res_state',
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'_u._ext.nsaddrs',
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headers='sys/socket.h netinet/in.h resolv.h',
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define='HAVE_RES_STATE_U_EXT_NSADDRS')
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conf.CHECK_STRUCTURE_MEMBER('union res_sockaddr_union',
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'sin',
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headers='sys/socket.h netinet/in.h resolv.h',
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define='HAVE_RES_SOCKADDR_UNION_SIN')
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conf.CHECK_STRUCTURE_MEMBER('union res_sockaddr_union',
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'sin6',
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headers='sys/socket.h netinet/in.h resolv.h',
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define='HAVE_RES_SOCKADDR_UNION_SIN6')
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conf.CHECK_FUNCS_IN('res_ninit', 'resolv')
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if conf.CONFIG_SET('HAVE_RES_NINIT'):
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conf.DEFINE('HAVE_RES_NINIT_IN_LIBRESOLV', 1)
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conf.CHECK_FUNCS_IN('res_nclose', 'resolv')
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if conf.CONFIG_SET('HAVE_RES_NCLOSE'):
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conf.DEFINE('HAVE_RES_NCLOSE_IN_LIBRESOLV', 1)
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# If we find res_nquery in libc, we can't do resolv.conf redirect
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conf.CHECK_FUNCS('res_nquery __res_nquery')
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if (conf.CONFIG_SET('HAVE_RES_NQUERY')
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or conf.CONFIG_SET('HAVE___RES_NQUERY')):
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Logs.warn("Detection for resolv_wrapper: "
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"Only dns faking will be available")
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else:
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if conf.CHECK_FUNCS('res_nquery', lib='resolv'):
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conf.DEFINE('HAVE_RESOLV_CONF_SUPPORT', 1)
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if conf.CHECK_FUNCS('__res_nquery', lib='resolv'):
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conf.DEFINE('HAVE_RESOLV_CONF_SUPPORT', 1)
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conf.CHECK_FUNCS_IN('res_init __res_init', 'resolv', checklibc=True)
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conf.CHECK_FUNCS_IN('res_ninit __res_ninit', 'resolv', checklibc=True)
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conf.CHECK_FUNCS_IN('res_close __res_close', 'resolv', checklibc=True)
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conf.CHECK_FUNCS_IN('res_nclose __res_nclose', 'resolv', checklibc=True)
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conf.CHECK_FUNCS_IN('res_query __res_query', 'resolv', checklibc=True)
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conf.CHECK_FUNCS_IN('res_nquery __res_nquery', 'resolv', checklibc=True)
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conf.CHECK_FUNCS_IN('res_search __res_search', 'resolv', checklibc=True)
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conf.CHECK_FUNCS_IN('res_nsearch __res_nsearch', 'resolv', checklibc=True)
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conf.CHECK_DECLS('ns_name_compress', headers='sys/types.h arpa/nameser.h')
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if (conf.CONFIG_SET("HAVE_DECL_NS_NAME_COMPRESS")):
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conf.DEFINE("HAVE_NS_NAME_COMPRESS", 1)
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# Create full path to resolv_wrapper
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blddir = os.path.realpath(conf.bldnode.abspath())
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libresolv_wrapper_so_path = blddir + '/default/third_party/resolv_wrapper/libresolv-wrapper.so'
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conf.DEFINE('LIBRESOLV_WRAPPER_SO_PATH', libresolv_wrapper_so_path)
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conf.DEFINE('RESOLV_WRAPPER', 1)
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def build(bld):
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if bld.CONFIG_SET("HAVE_RESOLV_H") and not bld.CONFIG_SET("USING_SYSTEM_RESOLV_WRAPPER"):
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# We need to do it this way or the library wont work.
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# We need force_unversioned=True as symbol versioning
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# breaks preloading!
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bld.SAMBA_LIBRARY('resolv_wrapper',
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source='resolv_wrapper.c',
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deps='dl resolv',
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install=False,
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force_unversioned=True,
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realname='libresolv-wrapper.so')
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