1dnl Wget-specific Autoconf macros.
2dnl Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
3dnl 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
4dnl Foundation, Inc.
5
6dnl This program is free software; you can redistribute it and/or modify
7dnl it under the terms of the GNU General Public License as published by
8dnl the Free Software Foundation; either version 3 of the License, or
9dnl (at your option) any later version.
10
11dnl This program is distributed in the hope that it will be useful,
12dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
13dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14dnl GNU General Public License for more details.
15
16dnl You should have received a copy of the GNU General Public License
17dnl along with this program.  If not, see <http://www.gnu.org/licenses/>.
18
19dnl Additional permission under GNU GPL version 3 section 7
20
21dnl If you modify this program, or any covered work, by linking or
22dnl combining it with the OpenSSL project's OpenSSL library (or a
23dnl modified version of that library), containing parts covered by the
24dnl terms of the OpenSSL or SSLeay licenses, the Free Software Foundation
25dnl grants you additional permission to convey the resulting work.
26dnl Corresponding Source for a non-source form of such a combination
27dnl shall include the source code for the parts of OpenSSL used as well
28dnl as that of the covered work.
29
30dnl
31dnl Check for `struct utimbuf'.
32dnl
33
34AC_DEFUN([WGET_STRUCT_UTIMBUF], [
35  AC_CHECK_TYPES([struct utimbuf], [], [], [
36#include <stdio.h>
37#if HAVE_SYS_TYPES_H
38# include <sys/types.h>
39#endif
40#if HAVE_UTIME_H
41# include <utime.h>
42#endif
43  ])
44])
45
46dnl Check whether fnmatch.h can be included.  This doesn't use
47dnl AC_FUNC_FNMATCH because Wget is already careful to only use
48dnl fnmatch on certain OS'es.  However, fnmatch.h is sometimes broken
49dnl even on those because Apache installs its own fnmatch.h to
50dnl /usr/local/include (!), which GCC uses before /usr/include.
51
52AC_DEFUN([WGET_FNMATCH], [
53  AC_MSG_CHECKING([for working fnmatch.h])
54  AC_COMPILE_IFELSE([AC_LANG_SOURCE([#include <fnmatch.h>
55                    ])], [
56    AC_MSG_RESULT(yes)
57    AC_DEFINE([HAVE_WORKING_FNMATCH_H], 1,
58              [Define if fnmatch.h can be included.])
59  ], [
60    AC_MSG_RESULT(no)
61  ])
62])
63
64dnl Check for nanosleep.  For nanosleep to work on Solaris, we must
65dnl link with -lrt (recently) or with -lposix4 (older releases).
66
67AC_DEFUN([WGET_NANOSLEEP], [
68  AC_CHECK_FUNCS(nanosleep, [], [
69    AC_CHECK_LIB(rt, nanosleep, [
70      AC_DEFINE([HAVE_NANOSLEEP], 1,
71                [Define if you have the nanosleep function.])
72      LIBS="-lrt $LIBS"
73    ], [
74      AC_CHECK_LIB(posix4, nanosleep, [
75	AC_DEFINE([HAVE_NANOSLEEP], 1,
76		  [Define if you have the nanosleep function.])
77	LIBS="-lposix4 $LIBS"
78      ])
79    ])
80  ])
81])
82
83AC_DEFUN([WGET_POSIX_CLOCK], [
84  AC_CHECK_FUNCS(clock_gettime, [], [
85    AC_CHECK_LIB(rt, clock_gettime)
86  ])
87])
88
89dnl Check whether we need to link with -lnsl and -lsocket, as is the
90dnl case on e.g. Solaris.
91
92AC_DEFUN([WGET_NSL_SOCKET], [
93  dnl On Solaris, -lnsl is needed to use gethostbyname.  But checking
94  dnl for gethostbyname is not enough because on "NCR MP-RAS 3.0"
95  dnl gethostbyname is in libc, but -lnsl is still needed to use
96  dnl -lsocket, as well as for functions such as inet_ntoa.  We look
97  dnl for such known offenders and if one of them is not found, we
98  dnl check if -lnsl is needed.
99  wget_check_in_nsl=NONE
100  AC_CHECK_FUNCS(gethostbyname, [], [
101    wget_check_in_nsl=gethostbyname
102  ])
103  AC_CHECK_FUNCS(inet_ntoa, [], [
104    wget_check_in_nsl=inet_ntoa
105  ])
106  if test $wget_check_in_nsl != NONE; then
107    AC_CHECK_LIB(nsl, $wget_check_in_nsl)
108  fi
109  AC_CHECK_LIB(socket, socket)
110])
111
112
113dnl ************************************************************
114dnl START OF IPv6 AUTOCONFIGURATION SUPPORT MACROS
115dnl ************************************************************
116
117AC_DEFUN([TYPE_STRUCT_SOCKADDR_IN6],[
118  wget_have_sockaddr_in6=
119  AC_CHECK_TYPES([struct sockaddr_in6],[
120    wget_have_sockaddr_in6=yes
121  ],[
122    wget_have_sockaddr_in6=no
123  ],[
124#include <sys/types.h>
125#ifdef HAVE_SYS_SOCKET_H
126#include <sys/socket.h>
127#endif
128#ifdef HAVE_NETINET_IN_H
129#include <netinet/in.h>
130#endif
131#ifdef HAVE_WINSOCK2_H
132#include <winsock2.h>
133#endif
134#ifdef HAVE_WS2TCPIP_H
135#include <ws2tcpip.h>
136#endif
137  ])
138
139  if test "X$wget_have_sockaddr_in6" = "Xyes"; then :
140    $1
141  else :
142    $2
143  fi
144])
145
146
147AC_DEFUN([MEMBER_SIN6_SCOPE_ID],[
148  AC_REQUIRE([TYPE_STRUCT_SOCKADDR_IN6])
149
150  wget_member_sin6_scope_id=
151  if test "X$wget_have_sockaddr_in6" = "Xyes"; then
152    AC_CHECK_MEMBER([struct sockaddr_in6.sin6_scope_id],[
153      wget_member_sin6_scope_id=yes
154    ],[
155      wget_member_sin6_scope_id=no
156    ],[
157#include <sys/types.h>
158#ifdef HAVE_SYS_SOCKET_H
159#include <sys/socket.h>
160#endif
161#ifdef HAVE_NETINET_IN_H
162#include <netinet/in.h>
163#endif
164#ifdef HAVE_WINSOCK2_H
165#include <winsock2.h>
166#endif
167#ifdef HAVE_WS2TCPIP_H
168#include <ws2tcpip.h>
169#endif
170    ])
171  fi
172
173  if test "X$wget_member_sin6_scope_id" = "Xyes"; then
174    AC_DEFINE([HAVE_SOCKADDR_IN6_SCOPE_ID], 1,
175      [Define if struct sockaddr_in6 has the sin6_scope_id member])
176    $1
177  else :
178    $2
179  fi
180])
181
182
183AC_DEFUN([PROTO_INET6],[
184  AC_CACHE_CHECK([for INET6 protocol support], [wget_cv_proto_inet6],[
185    AC_TRY_CPP([
186#include <sys/types.h>
187#ifdef HAVE_SYS_SOCKET_H
188#include <sys/socket.h>
189#endif
190#ifdef HAVE_NETINET_IN_H
191#include <netinet/in.h>
192#endif
193#ifdef HAVE_WINSOCK2_H
194#include <winsock2.h>
195#endif
196#ifdef HAVE_WS2TCPIP_H
197#include <ws2tcpip.h>
198#endif
199#ifndef PF_INET6
200#error Missing PF_INET6
201#endif
202#ifndef AF_INET6
203#error Missing AF_INET6
204#endif
205    ],[
206      wget_cv_proto_inet6=yes
207    ],[
208      wget_cv_proto_inet6=no
209    ])
210  ])
211
212  if test "X$wget_cv_proto_inet6" = "Xyes"; then :
213    $1
214  else :
215    $2
216  fi
217])
218
219
220AC_DEFUN([WGET_STRUCT_SOCKADDR_STORAGE],[
221  AC_CHECK_TYPES([struct sockaddr_storage],[], [], [
222#include <sys/types.h>
223#ifdef HAVE_SYS_SOCKET_H
224#include <sys/socket.h>
225#endif
226#ifdef HAVE_WINSOCK2_H
227#include <winsock2.h>
228#endif
229])
230])
231
232dnl ************************************************************
233dnl END OF IPv6 AUTOCONFIGURATION SUPPORT MACROS
234dnl ************************************************************
235
236dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR,
237dnl   TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]])
238AC_DEFUN([AM_PATH_PROG_WITH_TEST],
239[# Extract the first word of "$2", so it can be a program name with args.
240set dummy $2; ac_word=[$]2
241AC_MSG_CHECKING([for $ac_word])
242AC_CACHE_VAL(ac_cv_path_$1,
243[case "[$]$1" in
244  /*)
245  ac_cv_path_$1="[$]$1" # Let the user override the test with a path.
246  ;;
247  *)
248  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
249  for ac_dir in ifelse([$5], , $PATH, [$5]); do
250    test -z "$ac_dir" && ac_dir=.
251    if test -f $ac_dir/$ac_word; then
252      if [$3]; then
253	ac_cv_path_$1="$ac_dir/$ac_word"
254	break
255      fi
256    fi
257  done
258  IFS="$ac_save_ifs"
259dnl If no 4th arg is given, leave the cache variable unset,
260dnl so AC_PATH_PROGS will keep looking.
261ifelse([$4], , , [  test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4"
262])dnl
263  ;;
264esac])dnl
265$1="$ac_cv_path_$1"
266if test -n "[$]$1"; then
267  AC_MSG_RESULT([$]$1)
268else
269  AC_MSG_RESULT(no)
270fi
271AC_SUBST($1)dnl
272])
273
274