1dnl Wget-specific Autoconf macros. 2dnl Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 3dnl 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. 4 5dnl This program is free software; you can redistribute it and/or modify 6dnl it under the terms of the GNU General Public License as published by 7dnl the Free Software Foundation; either version 3 of the License, or 8dnl (at your option) any later version. 9 10dnl This program is distributed in the hope that it will be useful, 11dnl but WITHOUT ANY WARRANTY; without even the implied warranty of 12dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13dnl GNU General Public License for more details. 14 15dnl You should have received a copy of the GNU General Public License 16dnl along with this program. If not, see <http://www.gnu.org/licenses/>. 17 18dnl Additional permission under GNU GPL version 3 section 7 19 20dnl If you modify this program, or any covered work, by linking or 21dnl combining it with the OpenSSL project's OpenSSL library (or a 22dnl modified version of that library), containing parts covered by the 23dnl terms of the OpenSSL or SSLeay licenses, the Free Software Foundation 24dnl grants you additional permission to convey the resulting work. 25dnl Corresponding Source for a non-source form of such a combination 26dnl shall include the source code for the parts of OpenSSL used as well 27dnl as that of the covered work. 28 29dnl 30dnl Check for `struct utimbuf'. 31dnl 32 33AC_DEFUN([WGET_STRUCT_UTIMBUF], [ 34 AC_CHECK_TYPES([struct utimbuf], [], [], [ 35#include <stdio.h> 36#if HAVE_SYS_TYPES_H 37# include <sys/types.h> 38#endif 39#if HAVE_UTIME_H 40# include <utime.h> 41#endif 42 ]) 43]) 44 45 46dnl Check for socklen_t. The third argument of accept, getsockname, 47dnl etc. is int * on some systems, but size_t * on others. POSIX 48dnl finally standardized on socklen_t, but older systems don't have 49dnl it. If socklen_t exists, we use it, else if accept() accepts 50dnl size_t *, we use that, else we use int. 51 52AC_DEFUN([WGET_SOCKLEN_T], [ 53 AC_MSG_CHECKING(for socklen_t) 54 AC_COMPILE_IFELSE([ 55#include <sys/types.h> 56#include <sys/socket.h> 57socklen_t x; 58 ], [AC_MSG_RESULT(socklen_t)], [ 59 AC_COMPILE_IFELSE([ 60#include <sys/types.h> 61#include <sys/socket.h> 62int accept (int, struct sockaddr *, size_t *); 63 ], [ 64 AC_MSG_RESULT(size_t) 65 AC_DEFINE([socklen_t], [size_t], 66 [Define to int or size_t on systems without socklen_t.]) 67 ], [ 68 AC_MSG_RESULT(int) 69 AC_DEFINE([socklen_t], [int], 70 [Define to int or size_t on systems without socklen_t.]) 71 ]) 72 ]) 73]) 74 75dnl Check whether fnmatch.h can be included. This doesn't use 76dnl AC_FUNC_FNMATCH because Wget is already careful to only use 77dnl fnmatch on certain OS'es. However, fnmatch.h is sometimes broken 78dnl even on those because Apache installs its own fnmatch.h to 79dnl /usr/local/include (!), which GCC uses before /usr/include. 80 81AC_DEFUN([WGET_FNMATCH], [ 82 AC_MSG_CHECKING([for working fnmatch.h]) 83 AC_COMPILE_IFELSE([#include <fnmatch.h> 84 ], [ 85 AC_MSG_RESULT(yes) 86 AC_DEFINE([HAVE_WORKING_FNMATCH_H], 1, 87 [Define if fnmatch.h can be included.]) 88 ], [ 89 AC_MSG_RESULT(no) 90 ]) 91]) 92 93dnl Check for nanosleep. For nanosleep to work on Solaris, we must 94dnl link with -lrt (recently) or with -lposix4 (older releases). 95 96AC_DEFUN([WGET_NANOSLEEP], [ 97 AC_CHECK_FUNCS(nanosleep, [], [ 98 AC_CHECK_LIB(rt, nanosleep, [ 99 AC_DEFINE([HAVE_NANOSLEEP], 1, 100 [Define if you have the nanosleep function.]) 101 LIBS="-lrt $LIBS" 102 ], [ 103 AC_CHECK_LIB(posix4, nanosleep, [ 104 AC_DEFINE([HAVE_NANOSLEEP], 1, 105 [Define if you have the nanosleep function.]) 106 LIBS="-lposix4 $LIBS" 107 ]) 108 ]) 109 ]) 110]) 111 112AC_DEFUN([WGET_POSIX_CLOCK], [ 113 AC_CHECK_FUNCS(clock_gettime, [], [ 114 AC_CHECK_LIB(rt, clock_gettime) 115 ]) 116]) 117 118dnl Check whether we need to link with -lnsl and -lsocket, as is the 119dnl case on e.g. Solaris. 120 121AC_DEFUN([WGET_NSL_SOCKET], [ 122 dnl On Solaris, -lnsl is needed to use gethostbyname. But checking 123 dnl for gethostbyname is not enough because on "NCR MP-RAS 3.0" 124 dnl gethostbyname is in libc, but -lnsl is still needed to use 125 dnl -lsocket, as well as for functions such as inet_ntoa. We look 126 dnl for such known offenders and if one of them is not found, we 127 dnl check if -lnsl is needed. 128 wget_check_in_nsl=NONE 129 AC_CHECK_FUNCS(gethostbyname, [], [ 130 wget_check_in_nsl=gethostbyname 131 ]) 132 AC_CHECK_FUNCS(inet_ntoa, [], [ 133 wget_check_in_nsl=inet_ntoa 134 ]) 135 if test $wget_check_in_nsl != NONE; then 136 AC_CHECK_LIB(nsl, $wget_check_in_nsl) 137 fi 138 AC_CHECK_LIB(socket, socket) 139]) 140 141 142dnl ************************************************************ 143dnl START OF IPv6 AUTOCONFIGURATION SUPPORT MACROS 144dnl ************************************************************ 145 146AC_DEFUN([TYPE_STRUCT_SOCKADDR_IN6],[ 147 wget_have_sockaddr_in6= 148 AC_CHECK_TYPES([struct sockaddr_in6],[ 149 wget_have_sockaddr_in6=yes 150 ],[ 151 wget_have_sockaddr_in6=no 152 ],[ 153#include <sys/types.h> 154#include <sys/socket.h> 155#include <netinet/in.h> 156 ]) 157 158 if test "X$wget_have_sockaddr_in6" = "Xyes"; then : 159 $1 160 else : 161 $2 162 fi 163]) 164 165 166AC_DEFUN([MEMBER_SIN6_SCOPE_ID],[ 167 AC_REQUIRE([TYPE_STRUCT_SOCKADDR_IN6]) 168 169 wget_member_sin6_scope_id= 170 if test "X$wget_have_sockaddr_in6" = "Xyes"; then 171 AC_CHECK_MEMBER([struct sockaddr_in6.sin6_scope_id],[ 172 wget_member_sin6_scope_id=yes 173 ],[ 174 wget_member_sin6_scope_id=no 175 ],[ 176#include <sys/types.h> 177#include <sys/socket.h> 178#include <netinet/in.h> 179 ]) 180 fi 181 182 if test "X$wget_member_sin6_scope_id" = "Xyes"; then 183 AC_DEFINE([HAVE_SOCKADDR_IN6_SCOPE_ID], 1, 184 [Define if struct sockaddr_in6 has the sin6_scope_id member]) 185 $1 186 else : 187 $2 188 fi 189]) 190 191 192AC_DEFUN([PROTO_INET6],[ 193 AC_CACHE_CHECK([for INET6 protocol support], [wget_cv_proto_inet6],[ 194 AC_TRY_CPP([ 195#include <sys/types.h> 196#include <sys/socket.h> 197 198#ifndef PF_INET6 199#error Missing PF_INET6 200#endif 201#ifndef AF_INET6 202#error Mlssing AF_INET6 203#endif 204 ],[ 205 wget_cv_proto_inet6=yes 206 ],[ 207 wget_cv_proto_inet6=no 208 ]) 209 ]) 210 211 if test "X$wget_cv_proto_inet6" = "Xyes"; then : 212 $1 213 else : 214 $2 215 fi 216]) 217 218 219AC_DEFUN([WGET_STRUCT_SOCKADDR_STORAGE],[ 220 AC_CHECK_TYPES([struct sockaddr_storage],[], [], [ 221#include <sys/types.h> 222#include <sys/socket.h> 223 ]) 224]) 225 226dnl ************************************************************ 227dnl END OF IPv6 AUTOCONFIGURATION SUPPORT MACROS 228dnl ************************************************************ 229 230dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR, 231dnl TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]]) 232AC_DEFUN([AM_PATH_PROG_WITH_TEST], 233[# Extract the first word of "$2", so it can be a program name with args. 234set dummy $2; ac_word=[$]2 235AC_MSG_CHECKING([for $ac_word]) 236AC_CACHE_VAL(ac_cv_path_$1, 237[case "[$]$1" in 238 /*) 239 ac_cv_path_$1="[$]$1" # Let the user override the test with a path. 240 ;; 241 *) 242 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:" 243 for ac_dir in ifelse([$5], , $PATH, [$5]); do 244 test -z "$ac_dir" && ac_dir=. 245 if test -f $ac_dir/$ac_word; then 246 if [$3]; then 247 ac_cv_path_$1="$ac_dir/$ac_word" 248 break 249 fi 250 fi 251 done 252 IFS="$ac_save_ifs" 253dnl If no 4th arg is given, leave the cache variable unset, 254dnl so AC_PATH_PROGS will keep looking. 255ifelse([$4], , , [ test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4" 256])dnl 257 ;; 258esac])dnl 259$1="$ac_cv_path_$1" 260if test -n "[$]$1"; then 261 AC_MSG_RESULT([$]$1) 262else 263 AC_MSG_RESULT(no) 264fi 265AC_SUBST($1)dnl 266]) 267 268