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annotate m4/getaddrinfo.m4 @ 17480:f40b3156a43e

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selinux-at: omit unnecessary include * lib/selinux-at.c: Don't include dosname.h; not needed, since this source file doesn't use its macros, and subsidiary files that use the macros already include it.
author Paul Eggert <eggert@cs.ucla.edu>
date Fri, 23 Aug 2013 13:53:46 -0700
parents e542fd46ad6f
children 344018b6e5d7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
17189
83a5829d7fe2 getaddrinfo: no 'static inline'
Paul Eggert <eggert@cs.ucla.edu>
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diff changeset
1 # getaddrinfo.m4 serial 30
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Eric Blake <eblake@redhat.com>
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2 dnl Copyright (C) 2004-2013 Free Software Foundation, Inc.
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3 dnl This file is free software; the Free Software Foundation
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4 dnl gives unlimited permission to copy and/or distribute it,
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5 dnl with or without modifications, as long as this notice is preserved.
5408
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6
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7 AC_DEFUN([gl_GETADDRINFO],
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8 [
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9 AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H
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10 AC_REQUIRE([gl_HEADER_NETDB])dnl for HAVE_NETDB_H
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11 AC_MSG_NOTICE([checking how to do getaddrinfo, freeaddrinfo and getnameinfo])
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12 GETADDRINFO_LIB=
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13 gai_saved_LIBS="$LIBS"
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14
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15 dnl Where is getaddrinfo()?
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16 dnl - On Solaris, it is in libsocket.
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17 dnl - On Haiku, it is in libnetwork.
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18 dnl - On BeOS, it is in libnet.
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19 dnl - On native Windows, it is in ws2_32.dll.
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20 dnl - Otherwise it is in libc.
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21 AC_SEARCH_LIBS([getaddrinfo], [socket network net],
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22 [if test "$ac_cv_search_getaddrinfo" != "none required"; then
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23 GETADDRINFO_LIB="$ac_cv_search_getaddrinfo"
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24 fi])
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25 LIBS="$gai_saved_LIBS $GETADDRINFO_LIB"
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26
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27 HAVE_GETADDRINFO=1
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28 AC_CACHE_CHECK([for getaddrinfo], [gl_cv_func_getaddrinfo], [
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29 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
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30 #include <sys/types.h>
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31 #ifdef HAVE_SYS_SOCKET_H
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32 #include <sys/socket.h>
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33 #endif
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34 #ifdef HAVE_NETDB_H
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35 #include <netdb.h>
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36 #endif
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37 #include <stddef.h>
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38 ]], [[getaddrinfo("", "", NULL, NULL);]])],
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39 [gl_cv_func_getaddrinfo=yes],
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40 [gl_cv_func_getaddrinfo=no])])
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41 if test $gl_cv_func_getaddrinfo = no; then
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42 AC_CACHE_CHECK([for getaddrinfo in ws2tcpip.h and -lws2_32],
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43 gl_cv_w32_getaddrinfo, [
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44 gl_cv_w32_getaddrinfo=no
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45 am_save_LIBS="$LIBS"
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46 LIBS="$LIBS -lws2_32"
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47 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
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48 #ifdef HAVE_WS2TCPIP_H
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49 #include <ws2tcpip.h>
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50 #endif
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51 #include <stddef.h>
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52 ]], [[getaddrinfo(NULL, NULL, NULL, NULL);]])], [gl_cv_w32_getaddrinfo=yes])
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53 LIBS="$am_save_LIBS"
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54 ])
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55 if test "$gl_cv_w32_getaddrinfo" = "yes"; then
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56 GETADDRINFO_LIB="-lws2_32"
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57 LIBS="$gai_saved_LIBS $GETADDRINFO_LIB"
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58 else
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59 HAVE_GETADDRINFO=0
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60 fi
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61 fi
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62
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63 # We can't use AC_REPLACE_FUNCS here because gai_strerror may be an
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64 # inline function declared in ws2tcpip.h, so we need to get that
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65 # header included somehow.
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66 AC_CHECK_DECLS([gai_strerror], [], [], [[
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67 #include <sys/types.h>
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68 #ifdef HAVE_SYS_SOCKET_H
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69 #include <sys/socket.h>
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70 #endif
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71 #ifdef HAVE_NETDB_H
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72 #include <netdb.h>
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73 #endif
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74 #ifdef HAVE_WS2TCPIP_H
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75 #include <ws2tcpip.h>
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76 #endif
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77 #include <stddef.h>
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78 ]])
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79 if test $ac_cv_have_decl_gai_strerror = yes; then
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80 AC_CHECK_DECLS([gai_strerrorA], [], [], [[
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81 #include <sys/types.h>
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82 #ifdef HAVE_SYS_SOCKET_H
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83 #include <sys/socket.h>
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84 #endif
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85 #ifdef HAVE_NETDB_H
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86 #include <netdb.h>
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87 #endif
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88 #ifdef HAVE_WS2TCPIP_H
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89 #include <ws2tcpip.h>
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90 #endif
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91 #include <stddef.h>
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92 ]])
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93 dnl check for correct signature
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94 AC_CACHE_CHECK([for gai_strerror with POSIX signature],
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95 [gl_cv_func_gai_strerror_posix_signature], [
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96 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
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97 #include <sys/types.h>
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98 #ifdef HAVE_SYS_SOCKET_H
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99 #include <sys/socket.h>
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100 #endif
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101 #ifdef HAVE_NETDB_H
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102 #include <netdb.h>
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103 #endif
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104 #ifdef HAVE_WS2TCPIP_H
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105 #include <ws2tcpip.h>
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106 #endif
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107 #include <stddef.h>
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108 extern
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109 #ifdef __cplusplus
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110 "C"
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111 #endif
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112 const char *gai_strerror(int);]])],
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113 [gl_cv_func_gai_strerror_posix_signature=yes],
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114 [gl_cv_func_gai_strerror_posix_signature=no])])
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115 if test $gl_cv_func_gai_strerror_posix_signature = no; then
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116 REPLACE_GAI_STRERROR=1
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117 fi
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118 fi
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119
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120 LIBS="$gai_saved_LIBS"
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121
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122 gl_PREREQ_GETADDRINFO
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123
46c9755d1dd9 Module getaddrinfo requires linking with $(GETADDRINFO_LIB).
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124 AC_SUBST([GETADDRINFO_LIB])
5408
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parents:
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125 ])
02eeb2ef41ed Add getaddrinfo.
Simon Josefsson <simon@josefsson.org>
parents:
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126
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127 # Prerequisites of lib/netdb.in.h and lib/getaddrinfo.c.
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parents:
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128 AC_DEFUN([gl_PREREQ_GETADDRINFO], [
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129 AC_REQUIRE([gl_NETDB_H_DEFAULTS])
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Simon Josefsson <simon@josefsson.org>
parents: 7100
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130 AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H
10820
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131 AC_REQUIRE([gl_HOSTENT]) dnl for HOSTENT_LIB
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Bruno Haible <bruno@clisp.org>
parents: 10815
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132 AC_REQUIRE([gl_SERVENT]) dnl for SERVENT_LIB
13062
fcd6c0f53dc8 Rename gl_INET_NTOP.
Bruno Haible <bruno@clisp.org>
parents: 12559
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133 AC_REQUIRE([gl_FUNC_INET_NTOP]) dnl for INET_NTOP_LIB
7100
1401e9cfcacd Remove the 'restrict' module, and modify everybody to use AC_C_RESTRICT
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parents: 6875
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134 AC_REQUIRE([AC_C_RESTRICT])
5408
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Simon Josefsson <simon@josefsson.org>
parents:
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135 AC_REQUIRE([gl_SOCKET_FAMILIES])
6646
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Simon Josefsson <simon@josefsson.org>
parents: 6619
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136 AC_REQUIRE([gl_HEADER_SYS_SOCKET])
9209
5a0294ce5372 Track CVS Autoconf on AC_USE_SYSTEM_EXTENSIONS.
Eric Blake <ebb9@byu.net>
parents: 9015
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137 AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
10638
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Paolo Bonzini <bonzini@gnu.org>
parents: 9347
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138
28050ad34088 Fix getaddrinfo emulation for systems with struct sockaddr.sa_len.
Paolo Bonzini <bonzini@gnu.org>
parents: 9347
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139 dnl Including sys/socket.h is wrong for Windows, but Windows does not
28050ad34088 Fix getaddrinfo emulation for systems with struct sockaddr.sa_len.
Paolo Bonzini <bonzini@gnu.org>
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140 dnl have sa_len so the result is correct anyway.
14566
010e36829b08 getaddrinfo: Fix test for sa_len member.
Mats Erik Andersson <mats.andersson@gisladisker.se>
parents: 14079
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141 AC_CHECK_MEMBERS([struct sockaddr.sa_len], , , [
010e36829b08 getaddrinfo: Fix test for sa_len member.
Mats Erik Andersson <mats.andersson@gisladisker.se>
parents: 14079
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142 #include <sys/types.h>
010e36829b08 getaddrinfo: Fix test for sa_len member.
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parents: 14079
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143 #include <sys/socket.h>
010e36829b08 getaddrinfo: Fix test for sa_len member.
Mats Erik Andersson <mats.andersson@gisladisker.se>
parents: 14079
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144 ])
10638
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Paolo Bonzini <bonzini@gnu.org>
parents: 9347
diff changeset
145
11007
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Jim Meyering <meyering@redhat.com>
parents: 10963
diff changeset
146 AC_CHECK_HEADERS_ONCE([netinet/in.h])
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147
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148 AC_CHECK_DECLS([getaddrinfo, freeaddrinfo, getnameinfo],,,[[
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parents: 6319
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149 /* sys/types.h is not needed according to POSIX, but the
2b9ecd9439d4 2005-10-01 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents: 6319
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150 sys/socket.h in i386-unknown-freebsd4.10 and
2b9ecd9439d4 2005-10-01 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents: 6319
diff changeset
151 powerpc-apple-darwin5.5 required it. */
6340
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parents: 6339
diff changeset
152 #include <sys/types.h>
6619
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Simon Josefsson <simon@josefsson.org>
parents: 6340
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153 #ifdef HAVE_SYS_SOCKET_H
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parents: 6339
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154 #include <sys/socket.h>
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155 #endif
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Simon Josefsson <simon@josefsson.org>
parents: 6340
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156 #ifdef HAVE_NETDB_H
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parents: 6339
diff changeset
157 #include <netdb.h>
6619
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158 #endif
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Simon Josefsson <simon@josefsson.org>
parents: 6340
diff changeset
159 #ifdef HAVE_WS2TCPIP_H
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parents: 6340
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160 #include <ws2tcpip.h>
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Simon Josefsson <simon@josefsson.org>
parents: 6340
diff changeset
161 #endif
15618
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Bruno Haible <bruno@clisp.org>
parents: 15516
diff changeset
162 ]])
10786
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163 if test $ac_cv_have_decl_getaddrinfo = no; then
532bb85195db Use substituted macros instead of C preprocessor macros.
Bruno Haible <bruno@clisp.org>
parents: 10680
diff changeset
164 HAVE_DECL_GETADDRINFO=0
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parents: 10680
diff changeset
165 fi
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parents: 10680
diff changeset
166 if test $ac_cv_have_decl_freeaddrinfo = no; then
532bb85195db Use substituted macros instead of C preprocessor macros.
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parents: 10680
diff changeset
167 HAVE_DECL_FREEADDRINFO=0
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parents: 10680
diff changeset
168 fi
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parents: 10680
diff changeset
169 if test $ac_cv_have_decl_gai_strerror = no; then
532bb85195db Use substituted macros instead of C preprocessor macros.
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parents: 10680
diff changeset
170 HAVE_DECL_GAI_STRERROR=0
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parents: 10680
diff changeset
171 fi
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Bruno Haible <bruno@clisp.org>
parents: 10680
diff changeset
172 if test $ac_cv_have_decl_getnameinfo = no; then
532bb85195db Use substituted macros instead of C preprocessor macros.
Bruno Haible <bruno@clisp.org>
parents: 10680
diff changeset
173 HAVE_DECL_GETNAMEINFO=0
532bb85195db Use substituted macros instead of C preprocessor macros.
Bruno Haible <bruno@clisp.org>
parents: 10680
diff changeset
174 fi
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Bruno Haible <bruno@clisp.org>
parents: 10680
diff changeset
175
6319
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parents: 6316
diff changeset
176 AC_CHECK_TYPES([struct addrinfo],,,[
6340
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Paul Eggert <eggert@cs.ucla.edu>
parents: 6339
diff changeset
177 #include <sys/types.h>
6619
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Simon Josefsson <simon@josefsson.org>
parents: 6340
diff changeset
178 #ifdef HAVE_SYS_SOCKET_H
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Paul Eggert <eggert@cs.ucla.edu>
parents: 6339
diff changeset
179 #include <sys/socket.h>
6619
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parents: 6340
diff changeset
180 #endif
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Simon Josefsson <simon@josefsson.org>
parents: 6340
diff changeset
181 #ifdef HAVE_NETDB_H
6340
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Paul Eggert <eggert@cs.ucla.edu>
parents: 6339
diff changeset
182 #include <netdb.h>
6619
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Simon Josefsson <simon@josefsson.org>
parents: 6340
diff changeset
183 #endif
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Simon Josefsson <simon@josefsson.org>
parents: 6340
diff changeset
184 #ifdef HAVE_WS2TCPIP_H
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Simon Josefsson <simon@josefsson.org>
parents: 6340
diff changeset
185 #include <ws2tcpip.h>
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Simon Josefsson <simon@josefsson.org>
parents: 6340
diff changeset
186 #endif
6319
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Simon Josefsson <simon@josefsson.org>
parents: 6316
diff changeset
187 ])
10786
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Bruno Haible <bruno@clisp.org>
parents: 10680
diff changeset
188 if test $ac_cv_type_struct_addrinfo = no; then
532bb85195db Use substituted macros instead of C preprocessor macros.
Bruno Haible <bruno@clisp.org>
parents: 10680
diff changeset
189 HAVE_STRUCT_ADDRINFO=0
532bb85195db Use substituted macros instead of C preprocessor macros.
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parents: 10680
diff changeset
190 fi
10963
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parents: 10820
diff changeset
191
46c9755d1dd9 Module getaddrinfo requires linking with $(GETADDRINFO_LIB).
Bruno Haible <bruno@clisp.org>
parents: 10820
diff changeset
192 dnl Append $HOSTENT_LIB to GETADDRINFO_LIB, avoiding gratuitous duplicates.
46c9755d1dd9 Module getaddrinfo requires linking with $(GETADDRINFO_LIB).
Bruno Haible <bruno@clisp.org>
parents: 10820
diff changeset
193 case " $GETADDRINFO_LIB " in
46c9755d1dd9 Module getaddrinfo requires linking with $(GETADDRINFO_LIB).
Bruno Haible <bruno@clisp.org>
parents: 10820
diff changeset
194 *" $HOSTENT_LIB "*) ;;
46c9755d1dd9 Module getaddrinfo requires linking with $(GETADDRINFO_LIB).
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parents: 10820
diff changeset
195 *) GETADDRINFO_LIB="$GETADDRINFO_LIB $HOSTENT_LIB" ;;
46c9755d1dd9 Module getaddrinfo requires linking with $(GETADDRINFO_LIB).
Bruno Haible <bruno@clisp.org>
parents: 10820
diff changeset
196 esac
46c9755d1dd9 Module getaddrinfo requires linking with $(GETADDRINFO_LIB).
Bruno Haible <bruno@clisp.org>
parents: 10820
diff changeset
197
46c9755d1dd9 Module getaddrinfo requires linking with $(GETADDRINFO_LIB).
Bruno Haible <bruno@clisp.org>
parents: 10820
diff changeset
198 dnl Append $SERVENT_LIB to GETADDRINFO_LIB, avoiding gratuitous duplicates.
46c9755d1dd9 Module getaddrinfo requires linking with $(GETADDRINFO_LIB).
Bruno Haible <bruno@clisp.org>
parents: 10820
diff changeset
199 case " $GETADDRINFO_LIB " in
46c9755d1dd9 Module getaddrinfo requires linking with $(GETADDRINFO_LIB).
Bruno Haible <bruno@clisp.org>
parents: 10820
diff changeset
200 *" $SERVENT_LIB "*) ;;
46c9755d1dd9 Module getaddrinfo requires linking with $(GETADDRINFO_LIB).
Bruno Haible <bruno@clisp.org>
parents: 10820
diff changeset
201 *) GETADDRINFO_LIB="$GETADDRINFO_LIB $SERVENT_LIB" ;;
46c9755d1dd9 Module getaddrinfo requires linking with $(GETADDRINFO_LIB).
Bruno Haible <bruno@clisp.org>
parents: 10820
diff changeset
202 esac
12248
1bc8eb7d006a getaddrinfo: Simplify Link: directive.
Simon Josefsson <simon@josefsson.org>
parents: 11987
diff changeset
203
1bc8eb7d006a getaddrinfo: Simplify Link: directive.
Simon Josefsson <simon@josefsson.org>
parents: 11987
diff changeset
204 dnl Append $INET_NTOP_LIB to GETADDRINFO_LIB, avoiding gratuitous duplicates.
1bc8eb7d006a getaddrinfo: Simplify Link: directive.
Simon Josefsson <simon@josefsson.org>
parents: 11987
diff changeset
205 case " $GETADDRINFO_LIB " in
1bc8eb7d006a getaddrinfo: Simplify Link: directive.
Simon Josefsson <simon@josefsson.org>
parents: 11987
diff changeset
206 *" $INET_NTOP_LIB "*) ;;
1bc8eb7d006a getaddrinfo: Simplify Link: directive.
Simon Josefsson <simon@josefsson.org>
parents: 11987
diff changeset
207 *) GETADDRINFO_LIB="$GETADDRINFO_LIB $INET_NTOP_LIB" ;;
1bc8eb7d006a getaddrinfo: Simplify Link: directive.
Simon Josefsson <simon@josefsson.org>
parents: 11987
diff changeset
208 esac
6319
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Simon Josefsson <simon@josefsson.org>
parents: 6316
diff changeset
209 ])