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.])
56 [[ --with-ssl[=SSL-ROOT] link with SSL support [default=auto]
57 --without-ssl disable SSL autodetection]])
60 [ --disable-opie disable support for opie or s/key FTP login],
61 ENABLE_OPIE=$enableval, ENABLE_OPIE=yes)
62 test x"${ENABLE_OPIE}" = xyes && AC_DEFINE([ENABLE_OPIE], 1,
63 [Define if you want the Opie support for FTP compiled in.])
66 [ --disable-digest disable support for HTTP digest authorization],
67 ENABLE_DIGEST=$enableval, ENABLE_DIGEST=yes)
68 test x"${ENABLE_DIGEST}" = xyes && AC_DEFINE([ENABLE_DIGEST], 1,
69 [Define if you want the HTTP Digest Authorization compiled in.])
72 [ --disable-ntlm disable support for NTLM authorization],
73 [ENABLE_NTLM=$enableval], [ENABLE_NTLM=auto])
76 [ --disable-debug disable support for debugging output],
77 ENABLE_DEBUG=$enableval, ENABLE_DEBUG=yes)
78 test x"${ENABLE_DEBUG}" = xyes && AC_DEFINE([ENABLE_DEBUG], 1,
79 [Define if you want the debug output support compiled in.])
83 case "${ENABLE_OPIE}${ENABLE_DIGEST}" in
87 if test x"$ENABLE_OPIE" = xyes; then
93 dnl Whether make sets $(MAKE)...
98 dnl Find a good install
103 dnl Find the compiler
106 dnl We want these before the checks, so the checks can modify their values.
107 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
108 test -z "$CC" && cc_specified=yes
113 dnl Turn on optimization by default. Specifically:
115 dnl if the user hasn't specified CFLAGS, then
116 dnl if compiler is gcc, then
117 dnl use -O2 and some warning flags
119 dnl use os-specific flags or -O
120 if test -n "$auto_cflags"; then
121 if test -n "$GCC"; then
122 CFLAGS="$CFLAGS -O2 -Wall -Wno-implicit"
125 *hpux*) CFLAGS="$CFLAGS +O3" ;;
126 *ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;;
127 *) CFLAGS="$CFLAGS -O" ;;
133 dnl Configure our included libtool and make sure it's regenerated when needed
136 AC_SUBST(LIBTOOL_DEPS)
139 dnl In case of {cyg,gnu}win32. Should be a _target_ test.
140 dnl Might also be erelevant for DJGPP.
143 *win32) exeext='.exe';;
149 dnl Checks for basic compiler characteristics.
158 dnl Checks for header files that might be missing.
161 dnl Check for basic headers, even those we assume the presence of.
162 dnl This is because Autoconf default includes check for STDC_HEADERS,
163 dnl HAVE_SYS_TYPES_H, etc. before including them.
165 AC_CHECK_HEADERS(sys/types.h sys/stat.h)
166 dnl Now check for the others.
167 AC_CHECK_HEADERS(string.h strings.h limits.h unistd.h sys/time.h)
168 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h utime.h sys/utime.h)
169 AC_CHECK_HEADERS(stdint.h inttypes.h signal.h setjmp.h pwd.h)
173 dnl Check integral type sizes.
175 AC_CHECK_SIZEOF(short)
177 AC_CHECK_SIZEOF(long)
178 AC_CHECK_SIZEOF(long long)
181 dnl Check for large file support. This check needs to come fairly
182 dnl early because it could (in principle) affect whether functions and
183 dnl headers are available, whether they work, etc.
186 AC_CHECK_SIZEOF(off_t)
189 dnl Checks for non-universal or system-specific types.
193 AC_CHECK_TYPES(uint32_t)
194 AC_CHECK_TYPES(sig_atomic_t, [], [], [
196 #include <sys/types.h>
198 # include <inttypes.h>
206 dnl Checks for library functions.
211 AC_CHECK_FUNCS(strdup strstr strcasecmp strncasecmp strpbrk memmove)
212 AC_CHECK_FUNCS(gettimeofday mktime strptime strerror snprintf vsnprintf)
213 AC_CHECK_FUNCS(usleep select ftello sigblock sigsetjmp signal)
214 AC_CHECK_FUNCS(symlink access isatty)
217 dnl Call Wget's local macros defined in aclocal.
227 dnl Check if we need to compile in getopt.c.
229 AC_CHECK_FUNC(getopt_long, [], [
230 GETOPT_OBJ='getopt.o'
235 dnl Checks for libraries.
238 dnl $with_ssl can be one of:
239 dnl - empty string or "auto", meaning autodetect SSL and use it if found.
240 dnl - "yes", meaning link with SSL or bail out.
241 dnl - "no", meaning don't link with SSL.
242 dnl - anything else, meaning use that as the SSL root, and bail out
245 if test x"$with_ssl" = x; then
246 dnl Canonicalize unspecified with-ssl setting to "auto". This
247 dnl implements the "auto-detect by default" feature. If you want to
248 dnl change this to "ignore SSL by default", change "auto" to "no".
252 dnl Detection of OpenSSL is much hairier than the detection of other
253 dnl libraries because OpenSSL can be compiled as a third-party
254 dnl library, which means it will not be found without additional
255 dnl linker magic. It would be really nice to rework this check into
256 dnl an AC_DEFUN so that we can reuse it for other third-party
259 if test x"$with_ssl" != x"no"; then
262 if test x"$with_ssl" = x"yes"; then
266 if test x"$with_ssl" = x"yes" || test x"$with_ssl" = x"auto"; then
267 dnl OpenSSL's root was not specified, so we have to guess. First
268 dnl try the system default location, then "/usr/local/ssl" (where
269 dnl OpenSSL installs by default), then "/usr/local" (traditional
270 dnl choice for installation root), then "/opt".
271 ssl_all_roots="system-default /usr/local/ssl /usr/local /opt"
273 dnl Root has been specified by the user.
274 ssl_all_roots=$with_ssl
280 wget_save_LDFLAGS=$LDFLAGS
281 wget_save_CPPFLAGS=$CPPFLAGS
283 dnl Use libtool for OpenSSL tests so we can specify "-R<rpath>"
284 dnl without having to know how the linker handles it.
285 CC="$SHELL ./libtool $CC"
287 dnl Unfortunately, as of this writing (OpenSSL 0.9.6), the libcrypto
288 dnl shared library doesn't record its dependency on libdl, so we
289 dnl need to check for it ourselves so we won't fail to link due to a
290 dnl lack of -ldl. Most OSes use dlopen(), but HP-UX uses
292 AC_CHECK_LIB(dl,dlopen)
293 AC_CHECK_LIB(dl,shl_load)
297 dnl Now try to find SSL libraries in each of the likely SSL roots.
298 for ssl_root in $ssl_all_roots
300 if test x"$ssl_root" = x"system-default"; then
301 dnl Try the default include and library locations.
304 dnl Try this specific root.
305 SSL_INCLUDES=-I$ssl_root/include
306 dnl It's OK to use -R directly because libtool will
307 dnl interpret it for us.
308 LDFLAGS="-L$ssl_root/lib -R$ssl_root/lib $wget_save_LDFLAGS"
311 AC_MSG_NOTICE([looking for SSL libraries in $ssl_root])
313 dnl Check whether the compiler can find the include files. On
314 dnl some systems Gcc finds libraries in /usr/local/lib, but fails
315 dnl to find the includes in /usr/local/include.
317 ssl_found_includes=no
318 CPPFLAGS="$SSL_INCLUDES $wget_save_CPPFLAGS"
320 dnl Check for all the OpenSSL includes that Wget actually uses.
321 dnl This will prune both invalid installations and ancient
322 dnl versions of OpenSSL that we can't use.
323 AC_MSG_CHECKING([for includes])
325 #include <openssl/ssl.h>
326 #include <openssl/x509.h>
327 #include <openssl/err.h>
328 #include <openssl/rand.h>
329 #include <openssl/des.h>
330 #include <openssl/md4.h>
331 #include <openssl/md5.h>
334 ssl_found_includes=yes
336 AC_MSG_RESULT([not found])
339 if test x"$ssl_found_includes" = xno; then
345 dnl Make sure that the checks don't run afoul of the cache. It
346 dnl would be nicer to temporarily turn off the cache, but
347 dnl apparently Autoconf doesn't allow that.
349 unset ac_cv_lib_crypto_RSA_new
350 unset ac_cv_lib_ssl_SSL_new
352 dnl These checks need to be in this order, or you'll get a link
353 dnl failure if you use a static libcrypto.a and libssl.a rather
354 dnl than shared libraries.
356 AC_CHECK_LIB(crypto, RSA_new, , ssl_link_failure=yes)
357 AC_CHECK_LIB(ssl, SSL_new, , ssl_link_failure=yes)
359 if test x"$ssl_link_failure" = xyes; then
360 dnl One or both libs failed to link.
364 dnl The libraries link. But we still need to check if the program
365 dnl linked with those libraries under these settings with run. On
366 dnl some systems (Solaris), Gcc adds -L/usr/local/lib to the
367 dnl linking line, but fails to add -R/usr/local/lib, thus creating
368 dnl executables that link, but fail to run.
370 dnl If we are cross-compiling, just assume that working linkage
371 dnl implies working executable.
375 AC_MSG_CHECKING([whether SSL libs are resolved at runtime])
382 AC_MSG_RESULT(no); ssl_run_failure=yes,
386 if test x"$ssl_run_failure" = xno; then
392 if test x"$ssl_success" = xyes; then
393 AC_MSG_NOTICE([compiling in support for SSL in $ssl_root])
394 AC_DEFINE([HAVE_SSL], 1,
395 [Define if SSL support should be compiled in.])
396 AC_SUBST(SSL_INCLUDES)
400 LDFLAGS=$wget_save_LDFLAGS
403 dnl If linking with SSL was forced rather than auto-detected, then
404 dnl bail out if SSL failed.
405 if test x"$wget_force_ssl" = x"yes"; then
406 AC_MSG_ERROR([failed to find OpenSSL libraries], 2)
410 dnl Restore the compiler setting.
413 dnl Restore the CPPFLAGS. Do this regardless of whether linking
414 dnl with SSL succeeded -- SSL includes will be handled using
416 CPPFLAGS=$wget_save_CPPFLAGS
419 dnl Enable NTLM if requested and if SSL is available.
421 if test x"$ssl_success" = xyes
423 if test x"$ENABLE_NTLM" != xno
425 AC_DEFINE([ENABLE_NTLM], 1,
426 [Define if you want the NTLM authorization support compiled in.])
427 NTLM_OBJ='http-ntlm.o'
430 dnl If SSL is unavailable and the user explicitly requested NTLM,
432 if test x"$ENABLE_NTLM" = xyes
434 AC_MSG_ERROR([NTLM authorization requested and OpenSSL not found; aborting])
440 dnl Find an md5 implementation.
443 if test x"$wget_need_md5" = xyes
445 dnl This should be moved to an AC_DEFUN, but I'm not sure how to
446 dnl manipulate MD5_OBJ from the defun.
451 dnl Check for the system MD5 library on Solaris. We don't check for
452 dnl something simple like "MD5Update" because there are a number of
453 dnl MD5 implementations that use that name. md5_calc is, hopefully,
454 dnl specific to the Solaris MD5 library.
455 if test x"$found_md5" = xno; then
456 AC_CHECK_LIB(md5, md5_calc, [
457 dnl Some installations have bogus <md5.h> in the compiler's
458 dnl include path, making the system md5 library useless.
459 AC_MSG_CHECKING([for working md5.h])
460 AC_COMPILE_IFELSE([#include <md5.h>
463 AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define to use Solaris MD5.])
466 AC_MSG_NOTICE([using the Solaris MD5 implementation])
467 ], [AC_MSG_RESULT(no)])
471 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
473 if test x"$found_md5" = xno; then
474 if test x"$ssl_success" = xyes; then
475 AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define to use OpenSSL MD5.])
477 AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
481 dnl If none of the above worked, use the one we ship with Wget.
482 if test x"$found_md5" = xno; then
483 AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define to use built-in MD5.])
484 MD5_OBJ="$MD5_OBJ gnu-md5.o"
486 AC_MSG_NOTICE([using the GNU MD5 implementation])
489 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
492 dnl **********************************************************************
494 dnl **********************************************************************
497 dnl If --enable-ipv6 is specified, we try to use IPv6 (as long as
498 dnl getaddrinfo is also present). If --disable-ipv6 is specified, we
499 dnl don't use IPv6 or getaddrinfo. Otherwise we detect IPv6 and use
500 dnl it where available.
504 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
505 [case "${enable_ipv6}" in
507 AC_MSG_NOTICE([disabling IPv6 at user request])
508 dnl Disable IPv6 checking
512 dnl IPv6 explicitly enabled: force its use (abort if unavailable).
517 dnl Auto-detect IPv6, i.e. check for IPv6, but don't force it.
521 AC_MSG_ERROR([Invalid --enable-ipv6 argument \`$enable_ipv6'])
525 dnl If nothing is specified, assume auto-detection.
530 if test "X$ipv6" = "Xyes"; then
531 AC_CHECK_FUNCS(getaddrinfo, [], [
532 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
537 if test "X$ipv6" = "Xyes"; then
539 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
544 if test "X$ipv6" = "Xyes"; then
545 TYPE_STRUCT_SOCKADDR_IN6([],[
546 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support \`struct sockaddr_in6'])
549 if test "X$ipv6" = "Xyes"; then
550 WGET_STRUCT_SOCKADDR_STORAGE
555 if test "X$ipv6" = "Xyes"; then
556 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
557 AC_MSG_NOTICE([Enabling support for IPv6.])
558 elif test "x$force_ipv6" = "xyes"; then
559 AC_MSG_ERROR([IPv6 support requested but not found; aborting])
564 dnl Set of available languages.
566 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
568 dnl Originally this used to be static, looking like this:
569 dnl ALL_LINGUAS="cs de hr it ..."
570 dnl The downside was that configure needed to be rebuilt whenever a
571 dnl new language was added.
573 dnl internationalization macros
577 dnl Find makeinfo. We used to provide support for Emacs processing
578 dnl Texinfo using `emacs -batch -eval ...' where makeinfo is
579 dnl unavailable, but that broke with the addition of makeinfo-specific
580 dnl command-line options, such as `-I'. Now we depend on makeinfo to
581 dnl build the Info documentation.
584 AC_CHECK_PROGS(MAKEINFO, [makeinfo], [true])
587 dnl Find perl and pod2man
590 AC_PATH_PROGS(PERL, [perl5 perl], no)
591 AC_PATH_PROG(POD2MAN, pod2man, no)
593 if test "x${POD2MAN}" = xno; then
594 COMMENT_IF_NO_POD2MAN="# "
596 COMMENT_IF_NO_POD2MAN=
598 AC_SUBST(COMMENT_IF_NO_POD2MAN)
603 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile util/Makefile
604 po/Makefile.in windows/Makefile])
605 AC_CONFIG_HEADERS([src/config.h])
607 #include "config-post.h"
609 AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
610 AC_CONFIG_COMMANDS([default], [WGET_PROCESS_PO])