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8912421c LC |
1 | # sys_socket_h.m4 serial 13 |
2 | dnl Copyright (C) 2005-2009 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_C_INLINE]) | |
13 | ||
14 | AC_CACHE_CHECK([whether <sys/socket.h> is self-contained], | |
15 | [gl_cv_header_sys_socket_h_selfcontained], | |
16 | [ | |
17 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/socket.h>]], [[]])], | |
18 | [gl_cv_header_sys_socket_h_selfcontained=yes], | |
19 | [gl_cv_header_sys_socket_h_selfcontained=no]) | |
20 | ]) | |
21 | if test $gl_cv_header_sys_socket_h_selfcontained = yes; then | |
22 | SYS_SOCKET_H='' | |
23 | dnl If the shutdown function exists, <sys/socket.h> should define | |
24 | dnl SHUT_RD, SHUT_WR, SHUT_RDWR. | |
25 | AC_CHECK_FUNCS([shutdown]) | |
26 | if test $ac_cv_func_shutdown = yes; then | |
27 | AC_CACHE_CHECK([whether <sys/socket.h> defines the SHUT_* macros], | |
28 | [gl_cv_header_sys_socket_h_shut], | |
29 | [ | |
30 | AC_COMPILE_IFELSE( | |
31 | [AC_LANG_PROGRAM([[#include <sys/socket.h>]], | |
32 | [[int a[] = { SHUT_RD, SHUT_WR, SHUT_RDWR };]])], | |
33 | [gl_cv_header_sys_socket_h_shut=yes], | |
34 | [gl_cv_header_sys_socket_h_shut=no]) | |
35 | ]) | |
36 | if test $gl_cv_header_sys_socket_h_shut = no; then | |
37 | SYS_SOCKET_H='sys/socket.h' | |
38 | fi | |
39 | fi | |
40 | else | |
41 | SYS_SOCKET_H='sys/socket.h' | |
42 | fi | |
43 | # We need to check for ws2tcpip.h now. | |
44 | gl_PREREQ_SYS_H_SOCKET | |
45 | AC_CHECK_TYPES([struct sockaddr_storage, sa_family_t],,,[ | |
46 | /* sys/types.h is not needed according to POSIX, but the | |
47 | sys/socket.h in i386-unknown-freebsd4.10 and | |
48 | powerpc-apple-darwin5.5 required it. */ | |
49 | #include <sys/types.h> | |
50 | #ifdef HAVE_SYS_SOCKET_H | |
51 | #include <sys/socket.h> | |
52 | #endif | |
53 | #ifdef HAVE_WS2TCPIP_H | |
54 | #include <ws2tcpip.h> | |
55 | #endif | |
56 | ]) | |
57 | if test $ac_cv_type_struct_sockaddr_storage = no; then | |
58 | HAVE_STRUCT_SOCKADDR_STORAGE=0 | |
59 | SYS_SOCKET_H='sys/socket.h' | |
60 | fi | |
61 | if test $ac_cv_type_sa_family_t = no; then | |
62 | HAVE_SA_FAMILY_T=0 | |
63 | SYS_SOCKET_H='sys/socket.h' | |
64 | fi | |
65 | if test -n "$SYS_SOCKET_H"; then | |
66 | gl_PREREQ_SYS_H_WINSOCK2 | |
67 | fi | |
68 | AC_SUBST([SYS_SOCKET_H]) | |
69 | ]) | |
70 | ||
71 | AC_DEFUN([gl_PREREQ_SYS_H_SOCKET], | |
72 | [ | |
73 | dnl Check prerequisites of the <sys/socket.h> replacement. | |
74 | gl_CHECK_NEXT_HEADERS([sys/socket.h]) | |
75 | if test $ac_cv_header_sys_socket_h = yes; then | |
76 | HAVE_SYS_SOCKET_H=1 | |
77 | HAVE_WS2TCPIP_H=0 | |
78 | else | |
79 | HAVE_SYS_SOCKET_H=0 | |
80 | dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make | |
81 | dnl the check for those headers unconditional; yet cygwin reports | |
82 | dnl that the headers are present but cannot be compiled (since on | |
83 | dnl cygwin, all socket information should come from sys/socket.h). | |
84 | AC_CHECK_HEADERS([ws2tcpip.h]) | |
85 | if test $ac_cv_header_ws2tcpip_h = yes; then | |
86 | HAVE_WS2TCPIP_H=1 | |
87 | else | |
88 | HAVE_WS2TCPIP_H=0 | |
89 | fi | |
90 | fi | |
91 | AC_SUBST([HAVE_SYS_SOCKET_H]) | |
92 | AC_SUBST([HAVE_WS2TCPIP_H]) | |
93 | ]) | |
94 | ||
95 | # Common prerequisites of the <sys/socket.h> replacement and of the | |
96 | # <sys/select.h> replacement. | |
97 | # Sets and substitutes HAVE_WINSOCK2_H. | |
98 | AC_DEFUN([gl_PREREQ_SYS_H_WINSOCK2], | |
99 | [ | |
100 | m4_ifdef([gl_UNISTD_H_DEFAULTS], [AC_REQUIRE([gl_UNISTD_H_DEFAULTS])]) | |
101 | m4_ifdef([gl_SYS_IOCTL_H_DEFAULTS], [AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS])]) | |
102 | AC_CHECK_HEADERS_ONCE([sys/socket.h]) | |
103 | if test $ac_cv_header_sys_socket_h != yes; then | |
104 | dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make | |
105 | dnl the check for those headers unconditional; yet cygwin reports | |
106 | dnl that the headers are present but cannot be compiled (since on | |
107 | dnl cygwin, all socket information should come from sys/socket.h). | |
108 | AC_CHECK_HEADERS([winsock2.h]) | |
109 | fi | |
110 | if test "$ac_cv_header_winsock2_h" = yes; then | |
111 | HAVE_WINSOCK2_H=1 | |
112 | UNISTD_H_HAVE_WINSOCK2_H=1 | |
113 | SYS_IOCTL_H_HAVE_WINSOCK2_H=1 | |
114 | else | |
115 | HAVE_WINSOCK2_H=0 | |
116 | fi | |
117 | AC_SUBST([HAVE_WINSOCK2_H]) | |
118 | ]) | |
119 | ||
120 | AC_DEFUN([gl_SYS_SOCKET_MODULE_INDICATOR], | |
121 | [ | |
122 | dnl Use AC_REQUIRE here, so that the default settings are expanded once only. | |
123 | AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS]) | |
124 | GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1 | |
125 | ]) | |
126 | ||
127 | AC_DEFUN([gl_SYS_SOCKET_H_DEFAULTS], | |
128 | [ | |
129 | GNULIB_SOCKET=0; AC_SUBST([GNULIB_SOCKET]) | |
130 | GNULIB_CONNECT=0; AC_SUBST([GNULIB_CONNECT]) | |
131 | GNULIB_ACCEPT=0; AC_SUBST([GNULIB_ACCEPT]) | |
132 | GNULIB_BIND=0; AC_SUBST([GNULIB_BIND]) | |
133 | GNULIB_GETPEERNAME=0; AC_SUBST([GNULIB_GETPEERNAME]) | |
134 | GNULIB_GETSOCKNAME=0; AC_SUBST([GNULIB_GETSOCKNAME]) | |
135 | GNULIB_GETSOCKOPT=0; AC_SUBST([GNULIB_GETSOCKOPT]) | |
136 | GNULIB_LISTEN=0; AC_SUBST([GNULIB_LISTEN]) | |
137 | GNULIB_RECV=0; AC_SUBST([GNULIB_RECV]) | |
138 | GNULIB_SEND=0; AC_SUBST([GNULIB_SEND]) | |
139 | GNULIB_RECVFROM=0; AC_SUBST([GNULIB_RECVFROM]) | |
140 | GNULIB_SENDTO=0; AC_SUBST([GNULIB_SENDTO]) | |
141 | GNULIB_SETSOCKOPT=0; AC_SUBST([GNULIB_SETSOCKOPT]) | |
142 | GNULIB_SHUTDOWN=0; AC_SUBST([GNULIB_SHUTDOWN]) | |
143 | GNULIB_ACCEPT4=0; AC_SUBST([GNULIB_ACCEPT4]) | |
144 | HAVE_STRUCT_SOCKADDR_STORAGE=1; AC_SUBST([HAVE_STRUCT_SOCKADDR_STORAGE]) | |
145 | HAVE_SA_FAMILY_T=1; AC_SUBST([HAVE_SA_FAMILY_T]) | |
146 | HAVE_ACCEPT4=1; AC_SUBST([HAVE_ACCEPT4]) | |
147 | ]) |