Commit | Line | Data |
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f4c79b3c | 1 | # sys_socket_h.m4 serial 16 |
61cd9dc9 | 2 | dnl Copyright (C) 2005-2010 Free Software Foundation, Inc. |
8912421c LC |
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 | |
8912421c LC |
22 | dnl If the shutdown function exists, <sys/socket.h> should define |
23 | dnl SHUT_RD, SHUT_WR, SHUT_RDWR. | |
24 | AC_CHECK_FUNCS([shutdown]) | |
25 | if test $ac_cv_func_shutdown = yes; then | |
26 | AC_CACHE_CHECK([whether <sys/socket.h> defines the SHUT_* macros], | |
27 | [gl_cv_header_sys_socket_h_shut], | |
28 | [ | |
29 | AC_COMPILE_IFELSE( | |
30 | [AC_LANG_PROGRAM([[#include <sys/socket.h>]], | |
31 | [[int a[] = { SHUT_RD, SHUT_WR, SHUT_RDWR };]])], | |
32 | [gl_cv_header_sys_socket_h_shut=yes], | |
33 | [gl_cv_header_sys_socket_h_shut=no]) | |
34 | ]) | |
35 | if test $gl_cv_header_sys_socket_h_shut = no; then | |
36 | SYS_SOCKET_H='sys/socket.h' | |
37 | fi | |
38 | fi | |
8912421c LC |
39 | fi |
40 | # We need to check for ws2tcpip.h now. | |
41 | gl_PREREQ_SYS_H_SOCKET | |
42 | AC_CHECK_TYPES([struct sockaddr_storage, sa_family_t],,,[ | |
43 | /* sys/types.h is not needed according to POSIX, but the | |
44 | sys/socket.h in i386-unknown-freebsd4.10 and | |
45 | powerpc-apple-darwin5.5 required it. */ | |
46 | #include <sys/types.h> | |
47 | #ifdef HAVE_SYS_SOCKET_H | |
48 | #include <sys/socket.h> | |
49 | #endif | |
50 | #ifdef HAVE_WS2TCPIP_H | |
51 | #include <ws2tcpip.h> | |
52 | #endif | |
53 | ]) | |
54 | if test $ac_cv_type_struct_sockaddr_storage = no; then | |
55 | HAVE_STRUCT_SOCKADDR_STORAGE=0 | |
8912421c LC |
56 | fi |
57 | if test $ac_cv_type_sa_family_t = no; then | |
58 | HAVE_SA_FAMILY_T=0 | |
8912421c | 59 | fi |
f4c79b3c | 60 | gl_PREREQ_SYS_H_WINSOCK2 |
61cd9dc9 LC |
61 | |
62 | dnl Check for declarations of anything we want to poison if the | |
63 | dnl corresponding gnulib module is not in use. | |
64 | gl_WARN_ON_USE_PREPARE([[ | |
65 | /* Some systems require prerequisite headers. */ | |
66 | #include <sys/types.h> | |
67 | #if !defined __GLIBC__ && HAVE_SYS_TIME_H | |
68 | # include <sys/time.h> | |
69 | #endif | |
70 | #include <sys/select.h> | |
71 | ]], [socket connect accept bind getpeername getsockname getsockopt | |
72 | listen recv send recvfrom sendto setsockopt shutdown accept4]) | |
8912421c LC |
73 | ]) |
74 | ||
75 | AC_DEFUN([gl_PREREQ_SYS_H_SOCKET], | |
76 | [ | |
77 | dnl Check prerequisites of the <sys/socket.h> replacement. | |
78 | gl_CHECK_NEXT_HEADERS([sys/socket.h]) | |
79 | if test $ac_cv_header_sys_socket_h = yes; then | |
80 | HAVE_SYS_SOCKET_H=1 | |
81 | HAVE_WS2TCPIP_H=0 | |
82 | else | |
83 | HAVE_SYS_SOCKET_H=0 | |
84 | dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make | |
85 | dnl the check for those headers unconditional; yet cygwin reports | |
86 | dnl that the headers are present but cannot be compiled (since on | |
87 | dnl cygwin, all socket information should come from sys/socket.h). | |
88 | AC_CHECK_HEADERS([ws2tcpip.h]) | |
89 | if test $ac_cv_header_ws2tcpip_h = yes; then | |
90 | HAVE_WS2TCPIP_H=1 | |
91 | else | |
92 | HAVE_WS2TCPIP_H=0 | |
93 | fi | |
94 | fi | |
95 | AC_SUBST([HAVE_SYS_SOCKET_H]) | |
96 | AC_SUBST([HAVE_WS2TCPIP_H]) | |
97 | ]) | |
98 | ||
99 | # Common prerequisites of the <sys/socket.h> replacement and of the | |
100 | # <sys/select.h> replacement. | |
101 | # Sets and substitutes HAVE_WINSOCK2_H. | |
102 | AC_DEFUN([gl_PREREQ_SYS_H_WINSOCK2], | |
103 | [ | |
104 | m4_ifdef([gl_UNISTD_H_DEFAULTS], [AC_REQUIRE([gl_UNISTD_H_DEFAULTS])]) | |
105 | m4_ifdef([gl_SYS_IOCTL_H_DEFAULTS], [AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS])]) | |
106 | AC_CHECK_HEADERS_ONCE([sys/socket.h]) | |
107 | if test $ac_cv_header_sys_socket_h != yes; then | |
108 | dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make | |
109 | dnl the check for those headers unconditional; yet cygwin reports | |
110 | dnl that the headers are present but cannot be compiled (since on | |
111 | dnl cygwin, all socket information should come from sys/socket.h). | |
112 | AC_CHECK_HEADERS([winsock2.h]) | |
113 | fi | |
114 | if test "$ac_cv_header_winsock2_h" = yes; then | |
115 | HAVE_WINSOCK2_H=1 | |
116 | UNISTD_H_HAVE_WINSOCK2_H=1 | |
117 | SYS_IOCTL_H_HAVE_WINSOCK2_H=1 | |
118 | else | |
119 | HAVE_WINSOCK2_H=0 | |
120 | fi | |
121 | AC_SUBST([HAVE_WINSOCK2_H]) | |
122 | ]) | |
123 | ||
124 | AC_DEFUN([gl_SYS_SOCKET_MODULE_INDICATOR], | |
125 | [ | |
126 | dnl Use AC_REQUIRE here, so that the default settings are expanded once only. | |
127 | AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS]) | |
128 | GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1 | |
f4c79b3c LC |
129 | dnl Define it also as a C macro, for the benefit of the unit tests. |
130 | gl_MODULE_INDICATOR([$1]) | |
8912421c LC |
131 | ]) |
132 | ||
133 | AC_DEFUN([gl_SYS_SOCKET_H_DEFAULTS], | |
134 | [ | |
135 | GNULIB_SOCKET=0; AC_SUBST([GNULIB_SOCKET]) | |
136 | GNULIB_CONNECT=0; AC_SUBST([GNULIB_CONNECT]) | |
137 | GNULIB_ACCEPT=0; AC_SUBST([GNULIB_ACCEPT]) | |
138 | GNULIB_BIND=0; AC_SUBST([GNULIB_BIND]) | |
139 | GNULIB_GETPEERNAME=0; AC_SUBST([GNULIB_GETPEERNAME]) | |
140 | GNULIB_GETSOCKNAME=0; AC_SUBST([GNULIB_GETSOCKNAME]) | |
141 | GNULIB_GETSOCKOPT=0; AC_SUBST([GNULIB_GETSOCKOPT]) | |
142 | GNULIB_LISTEN=0; AC_SUBST([GNULIB_LISTEN]) | |
143 | GNULIB_RECV=0; AC_SUBST([GNULIB_RECV]) | |
144 | GNULIB_SEND=0; AC_SUBST([GNULIB_SEND]) | |
145 | GNULIB_RECVFROM=0; AC_SUBST([GNULIB_RECVFROM]) | |
146 | GNULIB_SENDTO=0; AC_SUBST([GNULIB_SENDTO]) | |
147 | GNULIB_SETSOCKOPT=0; AC_SUBST([GNULIB_SETSOCKOPT]) | |
148 | GNULIB_SHUTDOWN=0; AC_SUBST([GNULIB_SHUTDOWN]) | |
149 | GNULIB_ACCEPT4=0; AC_SUBST([GNULIB_ACCEPT4]) | |
150 | HAVE_STRUCT_SOCKADDR_STORAGE=1; AC_SUBST([HAVE_STRUCT_SOCKADDR_STORAGE]) | |
151 | HAVE_SA_FAMILY_T=1; AC_SUBST([HAVE_SA_FAMILY_T]) | |
152 | HAVE_ACCEPT4=1; AC_SUBST([HAVE_ACCEPT4]) | |
153 | ]) |