socket_wrapper: Be strict when checking __attribute__ features
[samba.git] / third_party / socket_wrapper / wscript
1 #!/usr/bin/env python
2
3 import os
4
5 VERSION="1.1.9"
6
7 def configure(conf):
8     if conf.CHECK_SOCKET_WRAPPER():
9         conf.DEFINE('USING_SYSTEM_SOCKET_WRAPPER', 1)
10         libsocket_wrapper_so_path = 'libsocket_wrapper.so'
11     else:
12         # check HAVE_GCC_THREAD_LOCAL_STORAGE
13         conf.CHECK_CODE('''
14             __thread int tls;
15
16             int main(void) {
17                 return 0;
18             }
19             ''',
20             'HAVE_GCC_THREAD_LOCAL_STORAGE',
21             addmain=False,
22             msg='Checking for thread local storage')
23
24         # check HAVE_DESTRUCTOR_ATTRIBUTE
25         conf.CHECK_CODE('''
26             void test_destructor_attribute(void) __attribute__ ((destructor));
27
28             void test_destructor_attribute(void)
29             {
30                 return;
31             }
32
33             int main(void) {
34                 return 0;
35             }
36             ''',
37             'HAVE_DESTRUCTOR_ATTRIBUTE',
38             addmain=False,
39             strict=True,
40             msg='Checking for library destructor support')
41
42         # check HAVE_FUNCTION_ATTRIBUTE_FORMAT
43         conf.CHECK_CODE('''
44             void log_fn(const char *format, ...) __attribute__ ((format (printf, 1, 2)));
45
46             int main(void) {
47                 return 0;
48             }
49             ''',
50             'HAVE_FUNCTION_ATTRIBUTE_FORMAT',
51             addmain=False,
52             strict=True,
53             msg='Checking for printf format validation support')
54
55         conf.CHECK_HEADERS('sys/signalfd.h')
56         conf.CHECK_HEADERS('sys/eventfd.h')
57         conf.CHECK_HEADERS('sys/timerfd.h')
58         conf.CHECK_HEADERS('gnu/lib-names.h')
59         conf.CHECK_HEADERS('rpc/rpc.h')
60
61         conf.CHECK_STRUCTURE_MEMBER('struct msghdr',
62                                     'msg_control',
63                                     headers='sys/types.h sys/socket.h',
64                                     define='HAVE_STRUCT_MSGHDR_MSG_CONTROL')
65
66         conf.CHECK_STRUCTURE_MEMBER('struct in_pktinfo',
67                                     'ipi_addr',
68                                     headers='sys/types.h sys/socket.h netinet/in.h',
69                                     define='HAVE_STRUCT_IN_PKTINFO')
70
71         conf.CHECK_STRUCTURE_MEMBER('struct in6_pktinfo',
72                                     'ipi6_addr',
73                                     headers='sys/types.h sys/socket.h netinet/in.h',
74                                     define='HAVE_STRUCT_IN6_PKTINFO')
75
76         conf.CHECK_FUNCS('getaddrinfo')
77         conf.CHECK_FUNCS('signalfd eventfd timerfd_create')
78         conf.CHECK_FUNCS('bindresvport')
79         conf.CHECK_FUNCS('pledge')
80         conf.CHECK_FUNCS('accept4')
81
82         conf.CHECK_FUNCS_IN('bind',
83                             'socket',
84                             checklibc=True,
85                             headers='sys/types.h sys/socket.h')
86
87         conf.CHECK_C_PROTOTYPE('accept',
88                                'int accept(int s, struct sockaddr *addr, Psocklen_t addrlen)',
89                                define='HAVE_ACCEPT_PSOCKLEN_T', headers='sys/types.h sys/socket.h')
90
91         conf.CHECK_C_PROTOTYPE('ioctl',
92                                'int ioctl(int s, int r, ...)',
93                                define='HAVE_IOCTL_INT', headers='unistd.h sys/ioctl.h')
94
95         if conf.CONFIG_SET("HAVE_EVENTFD"):
96             conf.CHECK_C_PROTOTYPE('eventfd',
97                                    'int eventfd(unsigned int count, int flags)',
98                                    define='HAVE_EVENTFD_UNSIGNED_INT', headers='sys/eventfd.h')
99
100         # Create full path to socket_wrapper
101         blddir = os.path.realpath(conf.blddir)
102         libsocket_wrapper_so_path = blddir + '/default/third_party/socket_wrapper/libsocket-wrapper.so'
103
104     conf.DEFINE('LIBSOCKET_WRAPPER_SO_PATH', libsocket_wrapper_so_path)
105     conf.DEFINE('SOCKET_WRAPPER', 1)
106
107 def build(bld):
108     if not bld.CONFIG_SET("USING_SYSTEM_SOCKET_WRAPPER"):
109         # We need to do it this way or the library wont work.
110         # Using private_library=True will add symbol version which
111         # breaks preloading!
112         bld.SAMBA_LIBRARY('socket_wrapper',
113                           source='socket_wrapper.c',
114                           deps='dl pthread tirpc',
115                           install=False,
116                           realname='libsocket-wrapper.so')