1 dnl Template file for GNU Autoconf
2 dnl Copyright (C) 1995, 1996, 1997, 2001 Free Software Foundation, Inc.
4 dnl This program is free software; you can redistribute it and/or modify
5 dnl it under the terms of the GNU General Public License as published by
6 dnl the Free Software Foundation; either version 2 of the License, or
7 dnl (at your option) any later version.
9 dnl This program is distributed in the hope that it will be useful,
10 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
11 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 dnl GNU General Public License for more details.
14 dnl You should have received a copy of the GNU General Public License
15 dnl along with this program; if not, write to the Free Software
16 dnl Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 dnl In addition, as a special exception, the Free Software Foundation
19 dnl gives permission to link the code of its release of Wget with the
20 dnl OpenSSL project's "OpenSSL" library (or with modified versions of it
21 dnl that use the same license as the "OpenSSL" library), and distribute
22 dnl the linked executables. You must obey the GNU General Public License
23 dnl in all respects for all of the code used other than "OpenSSL". If you
24 dnl modify this file, you may extend this exception to your version of the
25 dnl file, but you are not obligated to do so. If you do not wish to do
26 dnl so, delete this exception statement from your version.
29 dnl Process this file with autoconf to produce a configure script.
32 AC_INIT(src/version.c)
34 AC_CONFIG_HEADER(src/config.h)
37 dnl What version of Wget are we building?
39 VERSION=`sed -e 's/^.*"\(.*\)";$/\1/' ${srcdir}/src/version.c`
40 echo "configuring for GNU Wget $VERSION"
46 dnl Get cannonical host
49 AC_DEFINE_UNQUOTED(OS_TYPE, "$host_os")
55 [ --with-socks use the socks library],
56 [AC_DEFINE(HAVE_SOCKS)])
59 [[ --with-ssl[=SSL-ROOT] link with SSL support [default=auto]
60 --without-ssl disable SSL autodetection]])
63 [ --disable-opie disable support for opie or s/key FTP login],
64 USE_OPIE=$enableval, USE_OPIE=yes)
65 test x"${USE_OPIE}" = xyes && AC_DEFINE(USE_OPIE)
68 [ --disable-digest disable support for HTTP digest authorization],
69 USE_DIGEST=$enableval, USE_DIGEST=yes)
70 test x"${USE_DIGEST}" = xyes && AC_DEFINE(USE_DIGEST)
73 [ --disable-debug disable support for debugging output],
74 ENABLE_DEBUG=$enableval, ENABLE_DEBUG=yes)
75 test x"${ENABLE_DEBUG}" = xyes && AC_DEFINE(ENABLE_DEBUG)
79 case "${USE_OPIE}${USE_DIGEST}" in
83 if test x"$USE_OPIE" = xyes; then
89 dnl Whether make sets $(MAKE)...
94 dnl Find a good install
102 dnl We want these before the checks, so the checks can modify their values.
103 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
104 test -z "$CC" && cc_specified=yes
109 dnl if the user hasn't specified CFLAGS, then
110 dnl if compiler is gcc, then use -O2 and some warning flags
111 dnl else use os-specific flags or -O
113 if test -n "$auto_cflags"; then
114 if test -n "$GCC"; then
115 CFLAGS="$CFLAGS -O2 -Wall -Wno-implicit"
118 *hpux*) CFLAGS="$CFLAGS +O3" ;;
119 *ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;;
120 *) CFLAGS="$CFLAGS -O" ;;
131 dnl Configure our included libtool and make sure it's regenerated when needed
134 AC_SUBST(LIBTOOL_DEPS)
137 dnl In case of {cyg,gnu}win32. Should be a _target_ test.
138 dnl Might also be erelevant for DJGPP.
141 *win32) exeext='.exe';;
147 dnl Check if we can handle prototypes.
152 dnl Checks for typedefs, structures, and compiler characteristics.
160 # Check size of long.
161 AC_CHECK_SIZEOF(long)
162 AC_CHECK_SIZEOF(long long)
165 dnl Checks for headers
167 AC_CHECK_HEADERS(string.h stdarg.h unistd.h sys/time.h utime.h sys/utime.h pwd.h)
168 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h sys/utsname.h)
169 AC_CHECK_HEADERS(signal.h setjmp.h)
173 dnl Return type of signal-handlers
178 dnl Call several of Wget's macros.
184 dnl Checks for library functions.
188 AC_CHECK_FUNCS(strdup strstr strcasecmp strncasecmp strpbrk memmove)
189 AC_CHECK_FUNCS(gettimeofday mktime strptime strerror snprintf vsnprintf)
190 AC_CHECK_FUNCS(select sigblock sigsetjmp signal symlink access isatty)
191 AC_CHECK_FUNCS(uname gethostname usleep)
194 dnl Check if we need to compile in getopt.c.
196 AC_CHECK_FUNC(getopt_long, [], [
197 GETOPT_OBJ='getopt$o'
202 dnl Checks for libraries.
205 dnl On Solaris, -lnsl is needed to use gethostbyname. On "NCR MP-RAS
206 dnl 3.0", however, gethostbyname is in libc, but -lnsl is still needed
207 dnl to use -lsocket, as well as for functions such as inet_ntoa. We
208 dnl look for such known offenders and if one of them is not found, we
209 dnl check if -lnsl is needed.
211 wget_check_in_nsl=NONE
212 AC_CHECK_FUNCS(gethostbyname, [], [
213 wget_check_in_nsl=gethostbyname
215 AC_CHECK_FUNCS(inet_ntoa, [], [
216 wget_check_in_nsl=inet_ntoa
218 if test $wget_check_in_nsl != NONE; then
219 AC_CHECK_LIB(nsl, $wget_check_in_nsl)
222 AC_CHECK_LIB(socket, socket)
224 dnl #### This appears to be deficient with later versions of SOCKS.
225 if test "x${with_socks}" = xyes
227 AC_CHECK_LIB(resolv, main)
228 AC_CHECK_LIB(socks, Rconnect)
231 dnl $with_ssl can be one of:
232 dnl - empty string or "auto", meaning autodetect SSL and use it if found.
233 dnl - "yes", meaning link with SSL or bail out.
234 dnl - "no", meaning don't link with SSL.
235 dnl - anything else, meaning use that as the SSL root, and bail out
238 if test x"$with_ssl" = x; then
239 dnl Canonicalize unspecified with-ssl setting to "auto". This
240 dnl implements the "auto-detect by default" feature. If you want to
241 dnl change this to "ignore SSL by default", change "auto" to "no".
245 dnl Detection of OpenSSL is much hairier than the detection of other
246 dnl libraries because OpenSSL can be compiled as a third-party
247 dnl library, which means it will not be found without additional
248 dnl linker magic. It would be really nice to rework this check into
249 dnl an AC_DEFUN so that we can reuse it for other third-party
252 if test x"$with_ssl" != x"no"; then
255 if test x"$with_ssl" = x"yes"; then
259 if test x"$with_ssl" = x"yes" || test x"$with_ssl" = x"auto"; then
260 dnl OpenSSL's root was not specified, so we have to guess. First
261 dnl try the system default location, then "/usr/local/ssl" (where
262 dnl OpenSSL installs by default), then "/usr/local" (traditional
263 dnl choice for installation root), then "/opt".
264 ssl_all_roots="system-default /usr/local/ssl /usr/local /opt"
266 dnl Root has been specified by the user.
267 ssl_all_roots=$with_ssl
273 wget_save_LDFLAGS=$LDFLAGS
274 wget_save_CPPFLAGS=$CPPFLAGS
276 dnl Use libtool for OpenSSL tests so we can specify "-R<rpath>"
277 dnl without having to know how the linker handles it.
278 CC="$SHELL ./libtool $CC"
280 dnl Unfortunately, as of this writing (OpenSSL 0.9.6), the libcrypto
281 dnl shared library doesn't record its dependency on libdl, so we
282 dnl need to check for it ourselves so we won't fail to link due to a
283 dnl lack of -ldl. Most OSes use dlopen(), but HP-UX uses
285 AC_CHECK_LIB(dl,dlopen)
286 AC_CHECK_LIB(dl,shl_load)
290 dnl Now try to find SSL libraries in each of the likely SSL roots.
291 for ssl_root in $ssl_all_roots
293 if test x"$ssl_root" = x"system-default"; then
294 dnl Try the default include and library locations.
297 dnl Try this specific root.
298 SSL_INCLUDES=-I$ssl_root/include
299 dnl It's OK to use -R directly because libtool will
300 dnl interpret it for us.
301 LDFLAGS="-L$ssl_root/lib -R$ssl_root/lib $wget_save_LDFLAGS"
304 AC_MSG_RESULT([Looking for SSL libraries in $ssl_root])
306 dnl Check whether the compiler can find the include files. On
307 dnl some systems Gcc finds libraries in /usr/local/lib, but fails
308 dnl to find the includes in /usr/local/include.
310 ssl_found_includes=no
311 CPPFLAGS="$SSL_INCLUDES $wget_save_CPPFLAGS"
313 AC_MSG_CHECKING([for includes])
315 AC_TRY_CPP([#include <openssl/ssl.h>
316 #include <openssl/rsa.h>
318 AC_MSG_RESULT(found); ssl_found_includes=yes,
319 AC_MSG_RESULT([not found])
322 if test x"$ssl_found_includes" = xno; then
328 dnl Make sure that the checks don't run afoul of the cache. It
329 dnl would be nicer to temporarily turn off the cache, but
330 dnl apparently Autoconf doesn't allow that.
332 unset ac_cv_lib_crypto_RSA_new
333 unset ac_cv_lib_ssl_SSL_new
335 dnl These checks need to be in this order, or you'll get a link
336 dnl failure if you use a static libcrypto.a and libssl.a rather
337 dnl than shared libraries.
339 AC_CHECK_LIB(crypto, RSA_new, , ssl_link_failure=yes)
340 AC_CHECK_LIB(ssl, SSL_new, , ssl_link_failure=yes)
342 if test x"$ssl_link_failure" = xyes; then
343 dnl One or both libs failed to link.
347 dnl The libraries link. But we still need to check if the program
348 dnl linked with those libraries under these settings with run. On
349 dnl some systems (Solaris), Gcc adds -L/usr/local/lib to the
350 dnl linking line, but fails to add -R/usr/local/lib, thus creating
351 dnl executables that link, but fail to run.
353 dnl If we are cross-compiling, just assume that working linkage
354 dnl implies working executable.
358 AC_MSG_CHECKING([whether SSL libs are resolved at runtime])
365 AC_MSG_RESULT(no); ssl_run_failure=yes,
369 if test x"$ssl_run_failure" = xno; then
375 if test x"$ssl_success" = xyes; then
376 dnl AC_MSG_RESULT doesn't look right here, but I'm not sure what
378 AC_MSG_RESULT([Compiling in support for SSL in $ssl_root])
380 AC_SUBST(SSL_INCLUDES)
381 SSL_OBJ='gen_sslfunc$o'
384 LDFLAGS=$wget_save_LDFLAGS
387 dnl If linking with SSL was forced rather than auto-detected, then
388 dnl bail out if SSL failed.
389 if test x"$wget_force_ssl" = x"yes"; then
391 echo "ERROR: Failed to find OpenSSL libraries."
396 dnl Restore the compiler setting.
399 dnl Restore the CPPFLAGS. Do this regardless of whether linking
400 dnl with SSL succeeded -- SSL includes will be handled using
402 CPPFLAGS=$wget_save_CPPFLAGS
406 dnl Find an md5 implementation.
409 if test x"$wget_need_md5" = xyes
415 dnl Check for the system MD5 library on Solaris. We don't check for
416 dnl something simple like "MD5Update" because there are a number of
417 dnl MD5 implementations that use that name. md5_calc is, hopefully,
418 dnl specific to the Solaris MD5 library.
419 if test x"$found_md5" = xno; then
420 AC_CHECK_LIB(md5, md5_calc, [
421 AC_DEFINE(HAVE_SOLARIS_MD5)
427 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
429 if test x"$found_md5" = xno; then
430 if test x"$ssl_success" = xyes; then
431 AC_DEFINE(HAVE_OPENSSL_MD5)
436 dnl If none of the above worked, use the one we ship with Wget.
437 if test x"$found_md5" = xno; then
438 AC_DEFINE(HAVE_BUILTIN_MD5)
440 MD5_OBJ="$MD5_OBJ gnu-md5\$o"
446 dnl **********************************************************************
448 dnl **********************************************************************
453 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
454 [case "${enable_ipv6}" in
456 AC_MSG_NOTICE([Disabling IPv6 at user request])
466 if test "X$ipv6" = "Xyes" || test "X$check_for_ipv6" = "Xyes"; then
467 AC_CHECK_FUNCS(getaddrinfo,[
468 GETADDRINFO_AI_ADDRCONFIG(
470 [HAVE_GETADDRINFO_AI_ADDRCONFIG], 1,
471 [Define if the system headers support the AI_ADDRCONFIG flag.]
474 GETADDRINFO_AI_V4MAPPED(
476 [HAVE_GETADDRINFO_AI_V4MAPPED], 1,
477 [Define if the system headers support the AI_V4MAPPED flag.]
482 [HAVE_GETADDRINFO_AI_ALL], 1,
483 [Define if the system headers support the AI_ALL flag.]
487 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
492 if test "X$ipv6" = "Xyes" || test "X$check_for_ipv6" = "Xyes"; then
494 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
499 if test "X$ipv6" = "Xyes" || test "X$check_for_ipv6" = "Xyes"; then
500 TYPE_STRUCT_SOCKADDR_IN6([
503 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support 'struct sockaddr_in6'])
506 if test "X$ipv6" = "Xyes"; then
511 if test "X$ipv6" = "Xyes"; then
512 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
517 dnl Set of available languages.
519 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
521 dnl Originally this used to be static, looking like this:
522 dnl ALL_LINGUAS="cs de hr it ..."
523 dnl The downside was that configure needed to be rebuilt whenever a
524 dnl new language was added.
526 dnl internationalization macros
530 dnl Find makeinfo. If makeinfo is not found, look for Emacs. If
531 dnl Emacs cannot be found, look for XEmacs.
534 AC_CHECK_PROGS(MAKEINFO, makeinfo emacs xemacs)
536 case "${MAKEINFO}" in
537 *makeinfo) MAKEINFO="${MAKEINFO} \$(srcdir)/wget.texi" ;;
538 *emacs | *xemacs) MAKEINFO="${MAKEINFO} -batch -q -no-site-file -eval '(find-file \"\$(srcdir)/wget.texi\")' -l texinfmt -f texinfo-format-buffer -f save-buffer" ;;
539 *) MAKEINFO="makeinfo \$(srcdir)/wget.texi" ;;
543 dnl Find perl and pod2man
546 AC_PATH_PROGS(PERL, perl5 perl, no)
547 AC_PATH_PROG(POD2MAN, pod2man, no)
549 if test "x${POD2MAN}" = xno; then
550 COMMENT_IF_NO_POD2MAN="# "
552 COMMENT_IF_NO_POD2MAN=
554 AC_SUBST(COMMENT_IF_NO_POD2MAN)
559 AC_OUTPUT([Makefile src/Makefile doc/Makefile util/Makefile po/Makefile.in
562 test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h])