Annotation of embedaddon/libiconv/srcm4/sys_socket_h.m4, revision 1.1.1.1
1.1 misho 1: # sys_socket_h.m4 serial 22
2: dnl Copyright (C) 2005-2011 Free Software Foundation, Inc.
3: dnl This file is free software; the Free Software Foundation
4: dnl gives unlimited permission to copy and/or distribute it,
5: dnl with or without modifications, as long as this notice is preserved.
6:
7: dnl From Simon Josefsson.
8:
9: AC_DEFUN([gl_HEADER_SYS_SOCKET],
10: [
11: AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS])
12: AC_REQUIRE([AC_CANONICAL_HOST])
13: AC_REQUIRE([AC_C_INLINE])
14:
15: dnl On OSF/1, the functions recv(), send(), recvfrom(), sendto() have
16: dnl old-style declarations (with return type 'int' instead of 'ssize_t')
17: dnl unless _POSIX_PII_SOCKET is defined.
18: case "$host_os" in
19: osf*)
20: AC_DEFINE([_POSIX_PII_SOCKET], [1],
21: [Define to 1 in order to get the POSIX compatible declarations
22: of socket functions.])
23: ;;
24: esac
25:
26: AC_CACHE_CHECK([whether <sys/socket.h> is self-contained],
27: [gl_cv_header_sys_socket_h_selfcontained],
28: [
29: AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/socket.h>]], [[]])],
30: [gl_cv_header_sys_socket_h_selfcontained=yes],
31: [gl_cv_header_sys_socket_h_selfcontained=no])
32: ])
33: if test $gl_cv_header_sys_socket_h_selfcontained = yes; then
34: dnl If the shutdown function exists, <sys/socket.h> should define
35: dnl SHUT_RD, SHUT_WR, SHUT_RDWR.
36: AC_CHECK_FUNCS([shutdown])
37: if test $ac_cv_func_shutdown = yes; then
38: AC_CACHE_CHECK([whether <sys/socket.h> defines the SHUT_* macros],
39: [gl_cv_header_sys_socket_h_shut],
40: [
41: AC_COMPILE_IFELSE(
42: [AC_LANG_PROGRAM([[#include <sys/socket.h>]],
43: [[int a[] = { SHUT_RD, SHUT_WR, SHUT_RDWR };]])],
44: [gl_cv_header_sys_socket_h_shut=yes],
45: [gl_cv_header_sys_socket_h_shut=no])
46: ])
47: if test $gl_cv_header_sys_socket_h_shut = no; then
48: SYS_SOCKET_H='sys/socket.h'
49: fi
50: fi
51: fi
52: # We need to check for ws2tcpip.h now.
53: gl_PREREQ_SYS_H_SOCKET
54: AC_CHECK_TYPES([struct sockaddr_storage, sa_family_t],,,[
55: /* sys/types.h is not needed according to POSIX, but the
56: sys/socket.h in i386-unknown-freebsd4.10 and
57: powerpc-apple-darwin5.5 required it. */
58: #include <sys/types.h>
59: #ifdef HAVE_SYS_SOCKET_H
60: #include <sys/socket.h>
61: #endif
62: #ifdef HAVE_WS2TCPIP_H
63: #include <ws2tcpip.h>
64: #endif
65: ])
66: if test $ac_cv_type_struct_sockaddr_storage = no; then
67: HAVE_STRUCT_SOCKADDR_STORAGE=0
68: fi
69: if test $ac_cv_type_sa_family_t = no; then
70: HAVE_SA_FAMILY_T=0
71: fi
72: if test $ac_cv_type_struct_sockaddr_storage != no; then
73: AC_CHECK_MEMBERS([struct sockaddr_storage.ss_family],
74: [],
75: [HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY=0],
76: [#include <sys/types.h>
77: #ifdef HAVE_SYS_SOCKET_H
78: #include <sys/socket.h>
79: #endif
80: #ifdef HAVE_WS2TCPIP_H
81: #include <ws2tcpip.h>
82: #endif
83: ])
84: fi
85: if test $HAVE_STRUCT_SOCKADDR_STORAGE = 0 || test $HAVE_SA_FAMILY_T = 0 \
86: || test $HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY = 0; then
87: SYS_SOCKET_H='sys/socket.h'
88: fi
89: gl_PREREQ_SYS_H_WINSOCK2
90:
91: dnl Check for declarations of anything we want to poison if the
92: dnl corresponding gnulib module is not in use.
93: gl_WARN_ON_USE_PREPARE([[
94: /* Some systems require prerequisite headers. */
95: #include <sys/types.h>
96: #include <sys/socket.h>
97: ]], [socket connect accept bind getpeername getsockname getsockopt
98: listen recv send recvfrom sendto setsockopt shutdown accept4])
99: ])
100:
101: AC_DEFUN([gl_PREREQ_SYS_H_SOCKET],
102: [
103: dnl Check prerequisites of the <sys/socket.h> replacement.
104: AC_REQUIRE([gl_CHECK_SOCKET_HEADERS])
105: gl_CHECK_NEXT_HEADERS([sys/socket.h])
106: if test $ac_cv_header_sys_socket_h = yes; then
107: HAVE_SYS_SOCKET_H=1
108: HAVE_WS2TCPIP_H=0
109: else
110: HAVE_SYS_SOCKET_H=0
111: if test $ac_cv_header_ws2tcpip_h = yes; then
112: HAVE_WS2TCPIP_H=1
113: else
114: HAVE_WS2TCPIP_H=0
115: fi
116: fi
117: AC_SUBST([HAVE_SYS_SOCKET_H])
118: AC_SUBST([HAVE_WS2TCPIP_H])
119: ])
120:
121: # Common prerequisites of the <sys/socket.h> replacement and of the
122: # <sys/select.h> replacement.
123: # Sets and substitutes HAVE_WINSOCK2_H.
124: AC_DEFUN([gl_PREREQ_SYS_H_WINSOCK2],
125: [
126: m4_ifdef([gl_UNISTD_H_DEFAULTS], [AC_REQUIRE([gl_UNISTD_H_DEFAULTS])])
127: m4_ifdef([gl_SYS_IOCTL_H_DEFAULTS], [AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS])])
128: AC_CHECK_HEADERS_ONCE([sys/socket.h])
129: if test $ac_cv_header_sys_socket_h != yes; then
130: dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make
131: dnl the check for those headers unconditional; yet cygwin reports
132: dnl that the headers are present but cannot be compiled (since on
133: dnl cygwin, all socket information should come from sys/socket.h).
134: AC_CHECK_HEADERS([winsock2.h])
135: fi
136: if test "$ac_cv_header_winsock2_h" = yes; then
137: HAVE_WINSOCK2_H=1
138: UNISTD_H_HAVE_WINSOCK2_H=1
139: SYS_IOCTL_H_HAVE_WINSOCK2_H=1
140: else
141: HAVE_WINSOCK2_H=0
142: fi
143: AC_SUBST([HAVE_WINSOCK2_H])
144: ])
145:
146: AC_DEFUN([gl_SYS_SOCKET_MODULE_INDICATOR],
147: [
148: dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
149: AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS])
150: gl_MODULE_INDICATOR_SET_VARIABLE([$1])
151: dnl Define it also as a C macro, for the benefit of the unit tests.
152: gl_MODULE_INDICATOR_FOR_TESTS([$1])
153: ])
154:
155: AC_DEFUN([gl_SYS_SOCKET_H_DEFAULTS],
156: [
157: GNULIB_SOCKET=0; AC_SUBST([GNULIB_SOCKET])
158: GNULIB_CONNECT=0; AC_SUBST([GNULIB_CONNECT])
159: GNULIB_ACCEPT=0; AC_SUBST([GNULIB_ACCEPT])
160: GNULIB_BIND=0; AC_SUBST([GNULIB_BIND])
161: GNULIB_GETPEERNAME=0; AC_SUBST([GNULIB_GETPEERNAME])
162: GNULIB_GETSOCKNAME=0; AC_SUBST([GNULIB_GETSOCKNAME])
163: GNULIB_GETSOCKOPT=0; AC_SUBST([GNULIB_GETSOCKOPT])
164: GNULIB_LISTEN=0; AC_SUBST([GNULIB_LISTEN])
165: GNULIB_RECV=0; AC_SUBST([GNULIB_RECV])
166: GNULIB_SEND=0; AC_SUBST([GNULIB_SEND])
167: GNULIB_RECVFROM=0; AC_SUBST([GNULIB_RECVFROM])
168: GNULIB_SENDTO=0; AC_SUBST([GNULIB_SENDTO])
169: GNULIB_SETSOCKOPT=0; AC_SUBST([GNULIB_SETSOCKOPT])
170: GNULIB_SHUTDOWN=0; AC_SUBST([GNULIB_SHUTDOWN])
171: GNULIB_ACCEPT4=0; AC_SUBST([GNULIB_ACCEPT4])
172: HAVE_STRUCT_SOCKADDR_STORAGE=1; AC_SUBST([HAVE_STRUCT_SOCKADDR_STORAGE])
173: HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY=1;
174: AC_SUBST([HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY])
175: HAVE_SA_FAMILY_T=1; AC_SUBST([HAVE_SA_FAMILY_T])
176: HAVE_ACCEPT4=1; AC_SUBST([HAVE_ACCEPT4])
177: ])
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