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)
195 AC_CHECK_TYPES(sig_atomic_t, [], [], [
197 #include <sys/types.h>
199 # include <inttypes.h>
207 dnl Checks for library functions.
212 AC_CHECK_FUNCS(strdup strstr strcasecmp strncasecmp strpbrk memmove)
213 AC_CHECK_FUNCS(gettimeofday mktime strptime strerror snprintf vsnprintf)
214 AC_CHECK_FUNCS(usleep select ftello sigblock sigsetjmp signal)
215 AC_CHECK_FUNCS(symlink access isatty)
218 dnl Call Wget's local macros defined in aclocal.
228 dnl Check if we need to compile in getopt.c.
230 AC_CHECK_FUNC(getopt_long, [], [
231 GETOPT_OBJ='getopt.o'
236 dnl Checks for libraries.
239 dnl $with_ssl can be one of:
240 dnl - empty string or "auto", meaning autodetect SSL and use it if found.
241 dnl - "yes", meaning link with SSL or bail out.
242 dnl - "no", meaning don't link with SSL.
243 dnl - anything else, meaning use that as the SSL root, and bail out
246 if test x"$with_ssl" = x; then
247 dnl Canonicalize unspecified with-ssl setting to "auto". This
248 dnl implements the "auto-detect by default" feature. If you want to
249 dnl change this to "ignore SSL by default", change "auto" to "no".
253 dnl Detection of OpenSSL is much hairier than the detection of other
254 dnl libraries because OpenSSL can be compiled as a third-party
255 dnl library, which means it will not be found without additional
256 dnl linker magic. It would be really nice to rework this check into
257 dnl an AC_DEFUN so that we can reuse it for other third-party
260 if test x"$with_ssl" != x"no"; then
263 if test x"$with_ssl" = x"yes"; then
267 if test x"$with_ssl" = x"yes" || test x"$with_ssl" = x"auto"; then
268 dnl OpenSSL's root was not specified, so we have to guess. First
269 dnl try the system default location, then "/usr/local/ssl" (where
270 dnl OpenSSL installs by default), then "/usr/local" (traditional
271 dnl choice for installation root), then "/opt".
272 ssl_all_roots="system-default /usr/local/ssl /usr/local /opt"
274 dnl Root has been specified by the user.
275 ssl_all_roots=$with_ssl
281 wget_save_LDFLAGS=$LDFLAGS
282 wget_save_CPPFLAGS=$CPPFLAGS
284 dnl Use libtool for OpenSSL tests so we can specify "-R<rpath>"
285 dnl without having to know how the linker handles it.
286 CC="$SHELL ./libtool $CC"
288 dnl Unfortunately, as of this writing (OpenSSL 0.9.6), the libcrypto
289 dnl shared library doesn't record its dependency on libdl, so we
290 dnl need to check for it ourselves so we won't fail to link due to a
291 dnl lack of -ldl. Most OSes use dlopen(), but HP-UX uses
293 AC_CHECK_LIB(dl,dlopen)
294 AC_CHECK_LIB(dl,shl_load)
298 dnl Now try to find SSL libraries in each of the likely SSL roots.
299 for ssl_root in $ssl_all_roots
301 if test x"$ssl_root" = x"system-default"; then
302 dnl Try the default include and library locations.
305 dnl Try this specific root.
306 SSL_INCLUDES=-I$ssl_root/include
307 dnl It's OK to use -R directly because libtool will
308 dnl interpret it for us.
309 LDFLAGS="-L$ssl_root/lib -R$ssl_root/lib $wget_save_LDFLAGS"
312 AC_MSG_NOTICE([looking for SSL libraries in $ssl_root])
314 dnl Check whether the compiler can find the include files. On
315 dnl some systems Gcc finds libraries in /usr/local/lib, but fails
316 dnl to find the includes in /usr/local/include.
318 ssl_found_includes=no
319 CPPFLAGS="$SSL_INCLUDES $wget_save_CPPFLAGS"
321 dnl Check for all the OpenSSL includes that Wget actually uses.
322 dnl This will prune both invalid installations and ancient
323 dnl versions of OpenSSL that we can't use.
324 AC_MSG_CHECKING([for includes])
326 #include <openssl/ssl.h>
327 #include <openssl/x509.h>
328 #include <openssl/err.h>
329 #include <openssl/rand.h>
330 #include <openssl/des.h>
331 #include <openssl/md4.h>
332 #include <openssl/md5.h>
335 ssl_found_includes=yes
337 AC_MSG_RESULT([not found])
340 if test x"$ssl_found_includes" = xno; then
346 dnl Make sure that the checks don't run afoul of the cache. It
347 dnl would be nicer to temporarily turn off the cache, but
348 dnl apparently Autoconf doesn't allow that.
350 unset ac_cv_lib_crypto_RSA_new
351 unset ac_cv_lib_ssl_SSL_new
353 dnl These checks need to be in this order, or you'll get a link
354 dnl failure if you use a static libcrypto.a and libssl.a rather
355 dnl than shared libraries.
357 AC_CHECK_LIB(crypto, RSA_new, , ssl_link_failure=yes)
358 AC_CHECK_LIB(ssl, SSL_new, , ssl_link_failure=yes)
360 if test x"$ssl_link_failure" = xyes; then
361 dnl One or both libs failed to link.
365 dnl The libraries link. But we still need to check if the program
366 dnl linked with those libraries under these settings with run. On
367 dnl some systems (Solaris), Gcc adds -L/usr/local/lib to the
368 dnl linking line, but fails to add -R/usr/local/lib, thus creating
369 dnl executables that link, but fail to run.
371 dnl If we are cross-compiling, just assume that working linkage
372 dnl implies working executable.
376 AC_MSG_CHECKING([whether SSL libs are resolved at runtime])
383 AC_MSG_RESULT(no); ssl_run_failure=yes,
387 if test x"$ssl_run_failure" = xno; then
393 if test x"$ssl_success" = xyes; then
394 AC_MSG_NOTICE([compiling in support for SSL in $ssl_root])
395 AC_DEFINE([HAVE_SSL], 1,
396 [Define if SSL support should be compiled in.])
397 AC_SUBST(SSL_INCLUDES)
401 LDFLAGS=$wget_save_LDFLAGS
404 dnl If linking with SSL was forced rather than auto-detected, then
405 dnl bail out if SSL failed.
406 if test x"$wget_force_ssl" = x"yes"; then
407 AC_MSG_ERROR([failed to find OpenSSL libraries], 2)
411 dnl Restore the compiler setting.
414 dnl Restore the CPPFLAGS. Do this regardless of whether linking
415 dnl with SSL succeeded -- SSL includes will be handled using
417 CPPFLAGS=$wget_save_CPPFLAGS
420 dnl Enable NTLM if requested and if SSL is available.
422 if test x"$ssl_success" = xyes
424 if test x"$ENABLE_NTLM" != xno
426 AC_DEFINE([ENABLE_NTLM], 1,
427 [Define if you want the NTLM authorization support compiled in.])
428 NTLM_OBJ='http-ntlm.o'
431 dnl If SSL is unavailable and the user explicitly requested NTLM,
433 if test x"$ENABLE_NTLM" = xyes
435 AC_MSG_ERROR([NTLM authorization requested and OpenSSL not found; aborting])
441 dnl Find an md5 implementation.
444 if test x"$wget_need_md5" = xyes
446 dnl This should be moved to an AC_DEFUN, but I'm not sure how to
447 dnl manipulate MD5_OBJ from the defun.
452 dnl Check for the system MD5 library on Solaris. We don't check for
453 dnl something simple like "MD5Update" because there are a number of
454 dnl MD5 implementations that use that name. md5_calc is, hopefully,
455 dnl specific to the Solaris MD5 library.
456 if test x"$found_md5" = xno; then
457 AC_CHECK_LIB(md5, md5_calc, [
458 dnl Some installations have bogus <md5.h> in the compiler's
459 dnl include path, making the system md5 library useless.
460 AC_MSG_CHECKING([for working md5.h])
461 AC_COMPILE_IFELSE([#include <md5.h>
464 AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define to use Solaris MD5.])
467 AC_MSG_NOTICE([using the Solaris MD5 implementation])
468 ], [AC_MSG_RESULT(no)])
472 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
474 if test x"$found_md5" = xno; then
475 if test x"$ssl_success" = xyes; then
476 AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define to use OpenSSL MD5.])
478 AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
482 dnl If none of the above worked, use the one we ship with Wget.
483 if test x"$found_md5" = xno; then
484 AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define to use built-in MD5.])
485 MD5_OBJ="$MD5_OBJ gnu-md5.o"
487 AC_MSG_NOTICE([using the GNU MD5 implementation])
490 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
493 dnl **********************************************************************
495 dnl **********************************************************************
498 dnl If --enable-ipv6 is specified, we try to use IPv6 (as long as
499 dnl getaddrinfo is also present). If --disable-ipv6 is specified, we
500 dnl don't use IPv6 or getaddrinfo. Otherwise we detect IPv6 and use
501 dnl it where available.
505 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
506 [case "${enable_ipv6}" in
508 AC_MSG_NOTICE([disabling IPv6 at user request])
509 dnl Disable IPv6 checking
513 dnl IPv6 explicitly enabled: force its use (abort if unavailable).
518 dnl Auto-detect IPv6, i.e. check for IPv6, but don't force it.
522 AC_MSG_ERROR([Invalid --enable-ipv6 argument \`$enable_ipv6'])
526 dnl If nothing is specified, assume auto-detection.
531 if test "X$ipv6" = "Xyes"; then
532 AC_CHECK_FUNCS(getaddrinfo, [], [
533 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
538 if test "X$ipv6" = "Xyes"; then
540 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
545 if test "X$ipv6" = "Xyes"; then
546 TYPE_STRUCT_SOCKADDR_IN6([],[
547 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support \`struct sockaddr_in6'])
550 if test "X$ipv6" = "Xyes"; then
551 WGET_STRUCT_SOCKADDR_STORAGE
556 if test "X$ipv6" = "Xyes"; then
557 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
558 AC_MSG_NOTICE([Enabling support for IPv6.])
559 elif test "x$force_ipv6" = "xyes"; then
560 AC_MSG_ERROR([IPv6 support requested but not found; aborting])
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], [true])
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])