summaryrefslogtreecommitdiffstats
path: root/gl/m4/sys_socket_h.m4
diff options
context:
space:
mode:
Diffstat (limited to 'gl/m4/sys_socket_h.m4')
-rw-r--r--gl/m4/sys_socket_h.m490
1 files changed, 78 insertions, 12 deletions
diff --git a/gl/m4/sys_socket_h.m4 b/gl/m4/sys_socket_h.m4
index d9659c2d..85a0ace8 100644
--- a/gl/m4/sys_socket_h.m4
+++ b/gl/m4/sys_socket_h.m4
@@ -1,5 +1,5 @@
1# sys_socket_h.m4 serial 4 1# sys_socket_h.m4 serial 12
2dnl Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc. 2dnl Copyright (C) 2005-2008 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation 3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it, 4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved. 5dnl with or without modifications, as long as this notice is preserved.
@@ -8,22 +8,43 @@ dnl From Simon Josefsson.
8 8
9AC_DEFUN([gl_HEADER_SYS_SOCKET], 9AC_DEFUN([gl_HEADER_SYS_SOCKET],
10[ 10[
11 AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS])
12 AC_REQUIRE([AC_C_INLINE])
13
11 AC_CACHE_CHECK([whether <sys/socket.h> is self-contained], 14 AC_CACHE_CHECK([whether <sys/socket.h> is self-contained],
12 [gl_cv_header_sys_socket_h_selfcontained], 15 [gl_cv_header_sys_socket_h_selfcontained],
13 [ 16 [
14 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <sys/socket.h>], [])], 17 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/socket.h>]], [[]])],
15 [gl_cv_header_sys_socket_h_selfcontained=yes], 18 [gl_cv_header_sys_socket_h_selfcontained=yes],
16 [gl_cv_header_sys_socket_h_selfcontained=no]) 19 [gl_cv_header_sys_socket_h_selfcontained=no])
17 ]) 20 ])
18 if test $gl_cv_header_sys_socket_h_selfcontained = yes; then 21 if test $gl_cv_header_sys_socket_h_selfcontained = yes; then
19 SYS_SOCKET_H='' 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 $gl_cv_header_sys_socket_h_shut = no; then
37 SYS_SOCKET_H='sys/socket.h'
38 fi
39 fi
20 else 40 else
21 SYS_SOCKET_H='sys/socket.h' 41 SYS_SOCKET_H='sys/socket.h'
22 42 fi
43 if test -n "$SYS_SOCKET_H"; then
44 dnl Check prerequisites of the <sys/socket.h> replacement.
23 gl_CHECK_NEXT_HEADERS([sys/socket.h]) 45 gl_CHECK_NEXT_HEADERS([sys/socket.h])
24 if test $ac_cv_header_sys_socket_h = yes; then 46 if test $ac_cv_header_sys_socket_h = yes; then
25 HAVE_SYS_SOCKET_H=1 47 HAVE_SYS_SOCKET_H=1
26 HAVE_WINSOCK2_H=0
27 HAVE_WS2TCPIP_H=0 48 HAVE_WS2TCPIP_H=0
28 else 49 else
29 HAVE_SYS_SOCKET_H=0 50 HAVE_SYS_SOCKET_H=0
@@ -31,21 +52,66 @@ AC_DEFUN([gl_HEADER_SYS_SOCKET],
31 dnl the check for those headers unconditional; yet cygwin reports 52 dnl the check for those headers unconditional; yet cygwin reports
32 dnl that the headers are present but cannot be compiled (since on 53 dnl that the headers are present but cannot be compiled (since on
33 dnl cygwin, all socket information should come from sys/socket.h). 54 dnl cygwin, all socket information should come from sys/socket.h).
34 AC_CHECK_HEADERS([winsock2.h ws2tcpip.h]) 55 AC_CHECK_HEADERS([ws2tcpip.h])
35 if test $ac_cv_header_winsock2_h = yes; then
36 HAVE_WINSOCK2_H=1
37 else
38 HAVE_WINSOCK2_H=0
39 fi
40 if test $ac_cv_header_ws2tcpip_h = yes; then 56 if test $ac_cv_header_ws2tcpip_h = yes; then
41 HAVE_WS2TCPIP_H=1 57 HAVE_WS2TCPIP_H=1
42 else 58 else
43 HAVE_WS2TCPIP_H=0 59 HAVE_WS2TCPIP_H=0
44 fi 60 fi
45 fi 61 fi
62 gl_PREREQ_SYS_H_WINSOCK2
46 AC_SUBST([HAVE_SYS_SOCKET_H]) 63 AC_SUBST([HAVE_SYS_SOCKET_H])
47 AC_SUBST([HAVE_WINSOCK2_H])
48 AC_SUBST([HAVE_WS2TCPIP_H]) 64 AC_SUBST([HAVE_WS2TCPIP_H])
49 fi 65 fi
50 AC_SUBST([SYS_SOCKET_H]) 66 AC_SUBST([SYS_SOCKET_H])
51]) 67])
68
69# Common prerequisites of of the <sys/socket.h> replacement and of the
70# <sys/select.h> replacement.
71# Sets and substitutes HAVE_WINSOCK2_H.
72AC_DEFUN([gl_PREREQ_SYS_H_WINSOCK2],
73[
74 m4_ifdef([gl_UNISTD_H_DEFAULTS], [AC_REQUIRE([gl_UNISTD_H_DEFAULTS])])
75 m4_ifdef([gl_SYS_IOCTL_H_DEFAULTS], [AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS])])
76 AC_CHECK_HEADERS_ONCE([sys/socket.h])
77 if test $ac_cv_header_sys_socket_h != yes; then
78 dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make
79 dnl the check for those headers unconditional; yet cygwin reports
80 dnl that the headers are present but cannot be compiled (since on
81 dnl cygwin, all socket information should come from sys/socket.h).
82 AC_CHECK_HEADERS([winsock2.h])
83 fi
84 if test "$ac_cv_header_winsock2_h" = yes; then
85 HAVE_WINSOCK2_H=1
86 UNISTD_H_HAVE_WINSOCK2_H=1
87 SYS_IOCTL_H_HAVE_WINSOCK2_H=1
88 else
89 HAVE_WINSOCK2_H=0
90 fi
91 AC_SUBST([HAVE_WINSOCK2_H])
92])
93
94AC_DEFUN([gl_SYS_SOCKET_MODULE_INDICATOR],
95[
96 dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
97 AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS])
98 GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
99])
100
101AC_DEFUN([gl_SYS_SOCKET_H_DEFAULTS],
102[
103 GNULIB_SOCKET=0; AC_SUBST([GNULIB_SOCKET])
104 GNULIB_CONNECT=0; AC_SUBST([GNULIB_CONNECT])
105 GNULIB_ACCEPT=0; AC_SUBST([GNULIB_ACCEPT])
106 GNULIB_BIND=0; AC_SUBST([GNULIB_BIND])
107 GNULIB_GETPEERNAME=0; AC_SUBST([GNULIB_GETPEERNAME])
108 GNULIB_GETSOCKNAME=0; AC_SUBST([GNULIB_GETSOCKNAME])
109 GNULIB_GETSOCKOPT=0; AC_SUBST([GNULIB_GETSOCKOPT])
110 GNULIB_LISTEN=0; AC_SUBST([GNULIB_LISTEN])
111 GNULIB_RECV=0; AC_SUBST([GNULIB_RECV])
112 GNULIB_SEND=0; AC_SUBST([GNULIB_SEND])
113 GNULIB_RECVFROM=0; AC_SUBST([GNULIB_RECVFROM])
114 GNULIB_SENDTO=0; AC_SUBST([GNULIB_SENDTO])
115 GNULIB_SETSOCKOPT=0; AC_SUBST([GNULIB_SETSOCKOPT])
116 GNULIB_SHUTDOWN=0; AC_SUBST([GNULIB_SHUTDOWN])
117])