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])
36 dnl What version of Wget are we building?
38 VERSION=`sed -e 's/^.*"\(.*\)";$/\1/' ${srcdir}/src/version.c`
39 AC_MSG_NOTICE([configuring for GNU Wget $VERSION])
45 dnl Get cannonical host
48 AC_DEFINE_UNQUOTED([OS_TYPE], "$host_os",
49 [Define to be the name of the operating system.])
54 _AS_PATH_SEPARATOR_PREPARE
57 [[ --with-ssl[=SSL-ROOT] link with SSL support [default=auto]
58 --without-ssl disable SSL autodetection]])
61 [ --disable-opie disable support for opie or s/key FTP login],
62 ENABLE_OPIE=$enableval, ENABLE_OPIE=yes)
63 test x"${ENABLE_OPIE}" = xyes && AC_DEFINE([ENABLE_OPIE], 1,
64 [Define if you want the Opie support for FTP compiled in.])
67 [ --disable-digest disable support for HTTP digest authorization],
68 ENABLE_DIGEST=$enableval, ENABLE_DIGEST=yes)
69 test x"${ENABLE_DIGEST}" = xyes && AC_DEFINE([ENABLE_DIGEST], 1,
70 [Define if you want the HTTP Digest Authorization compiled in.])
73 [ --disable-ntlm disable support for NTLM authorization],
74 [ENABLE_NTLM=$enableval], [ENABLE_NTLM=auto])
77 [ --disable-debug disable support for debugging output],
78 ENABLE_DEBUG=$enableval, ENABLE_DEBUG=yes)
79 test x"${ENABLE_DEBUG}" = xyes && AC_DEFINE([ENABLE_DEBUG], 1,
80 [Define if you want the debug output support compiled in.])
84 case "${ENABLE_OPIE}${ENABLE_DIGEST}" in
88 if test x"$ENABLE_OPIE" = xyes; then
94 dnl Whether make sets $(MAKE)...
99 dnl Find a good install
104 dnl Find the compiler
107 dnl We want these before the checks, so the checks can modify their values.
108 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
109 test -z "$CC" && cc_specified=yes
115 dnl Turn on optimization by default. Specifically:
117 dnl if the user hasn't specified CFLAGS, then
118 dnl if compiler is gcc, then
119 dnl use -O2 and some warning flags
121 dnl use os-specific flags or -O
122 if test -n "$auto_cflags"; then
123 if test -n "$GCC"; then
124 CFLAGS="$CFLAGS -O2 -Wall -Wno-implicit"
127 *hpux*) CFLAGS="$CFLAGS +O3" ;;
128 *ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;;
129 *) CFLAGS="$CFLAGS -O" ;;
135 dnl Configure our included libtool and make sure it's regenerated when needed
138 AC_SUBST(LIBTOOL_DEPS)
141 dnl In case of {cyg,gnu}win32. Should be a _target_ test.
142 dnl Might also be erelevant for DJGPP.
145 *win32) exeext='.exe';;
151 dnl Checks for basic compiler characteristics.
159 if test x"$am_cv_prog_cc_stdc" != xno; then :
161 AC_SUBST(ANSI2KNR, [])
164 AC_SUBST(ANSI2KNR, [./ansi2knr])
168 dnl Checks for header files that might be missing.
171 dnl Check for basic headers, even those we assume the presence of.
172 dnl This is because Autoconf default includes check for STDC_HEADERS,
173 dnl HAVE_SYS_TYPES_H, etc. before including them.
175 AC_CHECK_HEADERS(sys/types.h sys/stat.h)
176 dnl Now check for the others.
177 AC_CHECK_HEADERS(string.h strings.h stdarg.h limits.h unistd.h sys/time.h)
178 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h utime.h sys/utime.h)
179 AC_CHECK_HEADERS(stdint.h inttypes.h signal.h setjmp.h pwd.h)
183 dnl Check integral type sizes.
185 AC_CHECK_SIZEOF(short)
187 AC_CHECK_SIZEOF(long)
188 AC_CHECK_SIZEOF(long long)
191 dnl Check for large file support. This check needs to come fairly
192 dnl early because it could (in principle) affect whether functions and
193 dnl headers are available, whether they work, etc.
196 AC_CHECK_SIZEOF(off_t)
199 dnl Checks for non-universal or system-specific types.
203 AC_CHECK_TYPES(uint32_t)
205 AC_CHECK_TYPES(sig_atomic_t, [], [], [
207 #include <sys/types.h>
209 # include <inttypes.h>
217 dnl Checks for library functions.
222 AC_CHECK_FUNCS(strdup strstr strcasecmp strncasecmp strpbrk memmove)
223 AC_CHECK_FUNCS(gettimeofday mktime strptime strerror snprintf vsnprintf)
224 AC_CHECK_FUNCS(usleep select ftello sigblock sigsetjmp signal)
225 AC_CHECK_FUNCS(symlink access isatty)
228 dnl Call Wget's local macros defined in aclocal.
238 dnl Check if we need to compile in getopt.c.
240 AC_CHECK_FUNC(getopt_long, [], [
241 GETOPT_OBJ='getopt$o'
246 dnl Checks for libraries.
249 dnl $with_ssl can be one of:
250 dnl - empty string or "auto", meaning autodetect SSL and use it if found.
251 dnl - "yes", meaning link with SSL or bail out.
252 dnl - "no", meaning don't link with SSL.
253 dnl - anything else, meaning use that as the SSL root, and bail out
256 if test x"$with_ssl" = x; then
257 dnl Canonicalize unspecified with-ssl setting to "auto". This
258 dnl implements the "auto-detect by default" feature. If you want to
259 dnl change this to "ignore SSL by default", change "auto" to "no".
263 dnl Detection of OpenSSL is much hairier than the detection of other
264 dnl libraries because OpenSSL can be compiled as a third-party
265 dnl library, which means it will not be found without additional
266 dnl linker magic. It would be really nice to rework this check into
267 dnl an AC_DEFUN so that we can reuse it for other third-party
270 if test x"$with_ssl" != x"no"; then
273 if test x"$with_ssl" = x"yes"; then
277 if test x"$with_ssl" = x"yes" || test x"$with_ssl" = x"auto"; then
278 dnl OpenSSL's root was not specified, so we have to guess. First
279 dnl try the system default location, then "/usr/local/ssl" (where
280 dnl OpenSSL installs by default), then "/usr/local" (traditional
281 dnl choice for installation root), then "/opt".
282 ssl_all_roots="system-default /usr/local/ssl /usr/local /opt"
284 dnl Root has been specified by the user.
285 ssl_all_roots=$with_ssl
291 wget_save_LDFLAGS=$LDFLAGS
292 wget_save_CPPFLAGS=$CPPFLAGS
294 dnl Use libtool for OpenSSL tests so we can specify "-R<rpath>"
295 dnl without having to know how the linker handles it.
296 CC="$SHELL ./libtool $CC"
298 dnl Unfortunately, as of this writing (OpenSSL 0.9.6), the libcrypto
299 dnl shared library doesn't record its dependency on libdl, so we
300 dnl need to check for it ourselves so we won't fail to link due to a
301 dnl lack of -ldl. Most OSes use dlopen(), but HP-UX uses
303 AC_CHECK_LIB(dl,dlopen)
304 AC_CHECK_LIB(dl,shl_load)
308 dnl Now try to find SSL libraries in each of the likely SSL roots.
309 for ssl_root in $ssl_all_roots
311 if test x"$ssl_root" = x"system-default"; then
312 dnl Try the default include and library locations.
315 dnl Try this specific root.
316 SSL_INCLUDES=-I$ssl_root/include
317 dnl It's OK to use -R directly because libtool will
318 dnl interpret it for us.
319 LDFLAGS="-L$ssl_root/lib -R$ssl_root/lib $wget_save_LDFLAGS"
322 AC_MSG_NOTICE([looking for SSL libraries in $ssl_root])
324 dnl Check whether the compiler can find the include files. On
325 dnl some systems Gcc finds libraries in /usr/local/lib, but fails
326 dnl to find the includes in /usr/local/include.
328 ssl_found_includes=no
329 CPPFLAGS="$SSL_INCLUDES $wget_save_CPPFLAGS"
331 dnl Check for all the OpenSSL includes that Wget actually uses.
332 dnl This will prune both invalid installations and ancient
333 dnl versions of OpenSSL that we can't use.
334 AC_MSG_CHECKING([for includes])
336 #include <openssl/ssl.h>
337 #include <openssl/bio.h>
338 #include <openssl/crypto.h>
339 #include <openssl/des.h>
340 #include <openssl/err.h>
341 #include <openssl/md4.h>
342 #include <openssl/pem.h>
343 #include <openssl/rand.h>
344 #include <openssl/x509.h>
347 ssl_found_includes=yes
349 AC_MSG_RESULT([not found])
352 if test x"$ssl_found_includes" = xno; then
358 dnl Make sure that the checks don't run afoul of the cache. It
359 dnl would be nicer to temporarily turn off the cache, but
360 dnl apparently Autoconf doesn't allow that.
362 unset ac_cv_lib_crypto_RSA_new
363 unset ac_cv_lib_ssl_SSL_new
365 dnl These checks need to be in this order, or you'll get a link
366 dnl failure if you use a static libcrypto.a and libssl.a rather
367 dnl than shared libraries.
369 AC_CHECK_LIB(crypto, RSA_new, , ssl_link_failure=yes)
370 AC_CHECK_LIB(ssl, SSL_new, , ssl_link_failure=yes)
372 if test x"$ssl_link_failure" = xyes; then
373 dnl One or both libs failed to link.
377 dnl The libraries link. But we still need to check if the program
378 dnl linked with those libraries under these settings with run. On
379 dnl some systems (Solaris), Gcc adds -L/usr/local/lib to the
380 dnl linking line, but fails to add -R/usr/local/lib, thus creating
381 dnl executables that link, but fail to run.
383 dnl If we are cross-compiling, just assume that working linkage
384 dnl implies working executable.
388 AC_MSG_CHECKING([whether SSL libs are resolved at runtime])
395 AC_MSG_RESULT(no); ssl_run_failure=yes,
399 if test x"$ssl_run_failure" = xno; then
405 if test x"$ssl_success" = xyes; then
406 AC_MSG_NOTICE([compiling in support for SSL in $ssl_root])
407 AC_DEFINE([HAVE_SSL], 1,
408 [Define if SSL support should be compiled in.])
409 AC_SUBST(SSL_INCLUDES)
410 SSL_OBJ='gen_sslfunc$o'
413 LDFLAGS=$wget_save_LDFLAGS
416 dnl If linking with SSL was forced rather than auto-detected, then
417 dnl bail out if SSL failed.
418 if test x"$wget_force_ssl" = x"yes"; then
419 AC_MSG_ERROR([failed to find OpenSSL libraries], 2)
423 dnl Restore the compiler setting.
426 dnl Restore the CPPFLAGS. Do this regardless of whether linking
427 dnl with SSL succeeded -- SSL includes will be handled using
429 CPPFLAGS=$wget_save_CPPFLAGS
432 dnl Enable NTLM if requested and if SSL is available.
434 if test x"$ssl_success" = xyes
436 if test x"$ENABLE_NTLM" != xno
438 AC_DEFINE([ENABLE_NTLM], 1,
439 [Define if you want the NTLM authorization support compiled in.])
440 NTLM_OBJ='http-ntlm$o'
443 dnl If SSL is unavailable and the user explicitly requested NTLM,
445 if test x"$ENABLE_NTLM" = xyes
447 AC_MSG_ERROR([NTLM authorization requested and OpenSSL not found; aborting])
453 dnl Find an md5 implementation.
456 if test x"$wget_need_md5" = xyes
458 dnl This should be moved to an AC_DEFUN, but I'm not sure how to
459 dnl manipulate MD5_OBJ from the defun.
464 dnl Check for the system MD5 library on Solaris. We don't check for
465 dnl something simple like "MD5Update" because there are a number of
466 dnl MD5 implementations that use that name. md5_calc is, hopefully,
467 dnl specific to the Solaris MD5 library.
468 if test x"$found_md5" = xno; then
469 AC_CHECK_LIB(md5, md5_calc, [
470 dnl Some installations have bogus <md5.h> in the compiler's
471 dnl include path, making the system md5 library useless.
472 AC_MSG_CHECKING([for working md5.h])
473 AC_COMPILE_IFELSE([#include <md5.h>
476 AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define to use Solaris MD5.])
479 AC_MSG_NOTICE([using the Solaris MD5 implementation])
480 ], [AC_MSG_RESULT(no)])
484 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
486 if test x"$found_md5" = xno; then
487 if test x"$ssl_success" = xyes; then
488 AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define to use OpenSSL MD5.])
490 AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
494 dnl If none of the above worked, use the one we ship with Wget.
495 if test x"$found_md5" = xno; then
496 AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define to use built-in MD5.])
497 MD5_OBJ="$MD5_OBJ gnu-md5\$o"
499 AC_MSG_NOTICE([using the GNU MD5 implementation])
502 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
505 dnl **********************************************************************
507 dnl **********************************************************************
510 dnl If --enable-ipv6 is specified, we try to use IPv6 (as long as
511 dnl getaddrinfo is also present). If --disable-ipv6 is specified, we
512 dnl don't use IPv6 or getaddrinfo.
518 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
519 [case "${enable_ipv6}" in
521 AC_MSG_NOTICE([disabling IPv6 at user request])
528 dnl If unspecified, check for IPv6 and use it where available.
532 if test "X$ipv6" = "Xyes" || test "X$check_for_ipv6" = "Xyes"; then
533 AC_CHECK_FUNCS(getaddrinfo, [], [
534 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
539 if test "X$ipv6" = "Xyes" || test "X$check_for_ipv6" = "Xyes"; then
541 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
546 if test "X$ipv6" = "Xyes" || test "X$check_for_ipv6" = "Xyes"; then
547 TYPE_STRUCT_SOCKADDR_IN6([
550 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support 'struct sockaddr_in6'])
553 if test "X$ipv6" = "Xyes"; then
554 WGET_STRUCT_SOCKADDR_STORAGE
559 if test "X$ipv6" = "Xyes"; then
560 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
565 dnl Set of available languages.
567 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
569 dnl Originally this used to be static, looking like this:
570 dnl ALL_LINGUAS="cs de hr it ..."
571 dnl The downside was that configure needed to be rebuilt whenever a
572 dnl new language was added.
574 dnl internationalization macros
578 dnl Find makeinfo. We used to provide support for Emacs processing
579 dnl Texinfo using `emacs -batch -eval ...' where makeinfo is
580 dnl unavailable, but that broke with the addition of makeinfo-specific
581 dnl command-line options, such as `-I'. Now we depend on makeinfo to
582 dnl build the Info documentation.
585 AC_CHECK_PROGS(MAKEINFO, makeinfo)
588 dnl Find perl and pod2man
591 AC_PATH_PROGS(PERL, perl5 perl, no)
592 AC_PATH_PROG(POD2MAN, pod2man, no)
594 if test "x${POD2MAN}" = xno; then
595 COMMENT_IF_NO_POD2MAN="# "
597 COMMENT_IF_NO_POD2MAN=
599 AC_SUBST(COMMENT_IF_NO_POD2MAN)
604 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile util/Makefile
605 po/Makefile.in windows/Makefile])
606 AC_CONFIG_HEADERS([src/config.h])
608 #include "config-post.h"
610 AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
611 AC_CONFIG_COMMANDS([default], [WGET_PROCESS_PO])