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.
154 dnl Needed for GNU md5 code.
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 test programs used by Autoconf macros check for
163 dnl STDC_HEADERS, HAVE_SYS_TYPES_H, etc. before including them.
164 dnl Without these checks they will fail to be included in test
165 dnl programs, which will subsequently fail.
167 AC_CHECK_HEADERS(sys/types.h sys/stat.h)
169 dnl Now the real checks:
171 AC_CHECK_HEADERS(string.h strings.h limits.h unistd.h sys/time.h)
172 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h utime.h sys/utime.h)
173 AC_CHECK_HEADERS(stdint.h inttypes.h setjmp.h pwd.h)
176 dnl Check sizes of signed integer types. These are used to find n-bit
177 dnl integral types on older systems that fail to provide intN_t and
178 dnl uintN_t typedefs.
180 AC_CHECK_SIZEOF(short)
182 AC_CHECK_SIZEOF(long)
183 AC_CHECK_SIZEOF(long long)
186 dnl Check for large file support. This check needs to come fairly
187 dnl early because it could (in principle) affect whether functions and
188 dnl headers are available, whether they work, etc.
191 AC_CHECK_SIZEOF(off_t)
194 dnl Checks for non-universal or system-specific types.
198 AC_CHECK_TYPES(uint32_t)
199 AC_CHECK_TYPES(sig_atomic_t, [], [], [
201 #include <sys/types.h>
203 # include <inttypes.h>
209 dnl Checks for library functions.
214 AC_CHECK_FUNCS(strdup strcasecmp strncasecmp)
215 AC_CHECK_FUNCS(strptime snprintf vsnprintf)
216 AC_CHECK_FUNCS(usleep ftello sigblock sigsetjmp)
217 AC_CHECK_FUNCS(symlink isatty)
220 dnl Call Wget-specific macros defined in aclocal.
230 dnl Check if we need to compile in getopt.c.
232 AC_CHECK_FUNC(getopt_long, [], [
233 GETOPT_OBJ='getopt.o'
238 dnl Checks for libraries.
241 dnl $with_ssl can be one of:
242 dnl - empty string or "auto", meaning autodetect SSL and use it if found.
243 dnl - "yes", meaning link with SSL or bail out.
244 dnl - "no", meaning don't link with SSL.
245 dnl - anything else, meaning use that as the SSL root, and bail out
248 if test x"$with_ssl" = x; then
249 dnl Canonicalize unspecified with-ssl setting to "auto". This
250 dnl implements the "auto-detect by default" feature. If you want to
251 dnl change this to "ignore SSL by default", change "auto" to "no".
255 dnl Detection of OpenSSL is much hairier than the detection of other
256 dnl libraries because OpenSSL can be compiled as a third-party
257 dnl library, which means it will not be found without additional
258 dnl linker magic. It would be really nice to rework this check into
259 dnl an AC_DEFUN so that we can reuse it for other third-party
262 if test x"$with_ssl" != x"no"; then
265 if test x"$with_ssl" = x"yes"; then
269 if test x"$with_ssl" = x"yes" || test x"$with_ssl" = x"auto"; then
270 dnl OpenSSL's root was not specified, so we have to guess. First
271 dnl try the system default location, then "/usr/local/ssl" (where
272 dnl OpenSSL installs by default), then "/usr/local" (traditional
273 dnl choice for installation root), then "/opt".
274 ssl_all_roots="system-default /usr/local/ssl /usr/local /opt"
276 dnl Root has been specified by the user.
277 ssl_all_roots=$with_ssl
283 wget_save_LDFLAGS=$LDFLAGS
284 wget_save_CPPFLAGS=$CPPFLAGS
286 dnl Use libtool for OpenSSL tests so we can specify "-R<rpath>"
287 dnl without having to know how the linker handles it.
288 CC="$SHELL ./libtool $CC"
290 dnl Unfortunately, as of this writing (OpenSSL 0.9.6), the libcrypto
291 dnl shared library doesn't record its dependency on libdl, so we
292 dnl need to check for it ourselves so we won't fail to link due to a
293 dnl lack of -ldl. Most OSes use dlopen(), but HP-UX uses
295 AC_CHECK_LIB(dl,dlopen)
296 AC_CHECK_LIB(dl,shl_load)
300 dnl Now try to find SSL libraries in each of the likely SSL roots.
301 for ssl_root in $ssl_all_roots
303 if test x"$ssl_root" = x"system-default"; then
304 dnl Try the default include and library locations.
307 dnl Try this specific root.
308 SSL_INCLUDES=-I$ssl_root/include
309 dnl It's OK to use -R directly because libtool will
310 dnl interpret it for us.
311 LDFLAGS="-L$ssl_root/lib -R$ssl_root/lib $wget_save_LDFLAGS"
314 AC_MSG_NOTICE([looking for SSL libraries in $ssl_root])
316 dnl Check whether the compiler can find the include files. On
317 dnl some systems Gcc finds libraries in /usr/local/lib, but fails
318 dnl to find the includes in /usr/local/include.
320 ssl_found_includes=no
321 CPPFLAGS="$SSL_INCLUDES $wget_save_CPPFLAGS"
323 dnl Check for all the OpenSSL includes that Wget actually uses.
324 dnl This will prune both invalid installations and ancient
325 dnl versions of OpenSSL that we can't use.
326 AC_MSG_CHECKING([for includes])
328 #include <openssl/ssl.h>
329 #include <openssl/x509.h>
330 #include <openssl/err.h>
331 #include <openssl/rand.h>
332 #include <openssl/des.h>
333 #include <openssl/md4.h>
334 #include <openssl/md5.h>
337 ssl_found_includes=yes
339 AC_MSG_RESULT([not found])
342 if test x"$ssl_found_includes" = xno; then
348 dnl Make sure that the checks don't run afoul of the cache. It
349 dnl would be nicer to temporarily turn off the cache, but
350 dnl apparently Autoconf doesn't allow that.
352 unset ac_cv_lib_crypto_RSA_new
353 unset ac_cv_lib_ssl_SSL_new
355 dnl These checks need to be in this order, or you'll get a link
356 dnl failure if you use a static libcrypto.a and libssl.a rather
357 dnl than shared libraries.
359 AC_CHECK_LIB(crypto, RSA_new, , ssl_link_failure=yes)
360 AC_CHECK_LIB(ssl, SSL_new, , ssl_link_failure=yes)
362 if test x"$ssl_link_failure" = xyes; then
363 dnl One or both libs failed to link.
367 dnl The libraries link. But we still need to check if the program
368 dnl linked with those libraries under these settings with run. On
369 dnl some systems (Solaris), Gcc adds -L/usr/local/lib to the
370 dnl linking line, but fails to add -R/usr/local/lib, thus creating
371 dnl executables that link, but fail to run.
373 dnl If we are cross-compiling, just assume that working linkage
374 dnl implies working executable.
378 AC_MSG_CHECKING([whether SSL libs are resolved at runtime])
385 AC_MSG_RESULT(no); ssl_run_failure=yes,
389 if test x"$ssl_run_failure" = xno; then
395 if test x"$ssl_success" = xyes; then
396 AC_MSG_NOTICE([compiling in support for SSL in $ssl_root])
397 AC_DEFINE([HAVE_SSL], 1,
398 [Define if SSL support should be compiled in.])
399 AC_SUBST(SSL_INCLUDES)
403 LDFLAGS=$wget_save_LDFLAGS
406 dnl If linking with SSL was forced rather than auto-detected, then
407 dnl bail out if SSL failed.
408 if test x"$wget_force_ssl" = x"yes"; then
409 AC_MSG_ERROR([failed to find OpenSSL libraries], 2)
413 dnl Restore the compiler setting.
416 dnl Restore the CPPFLAGS. Do this regardless of whether linking
417 dnl with SSL succeeded -- SSL includes will be handled using
419 CPPFLAGS=$wget_save_CPPFLAGS
422 dnl Enable NTLM if requested and if SSL is available.
424 if test x"$ssl_success" = xyes
426 if test x"$ENABLE_NTLM" != xno
428 AC_DEFINE([ENABLE_NTLM], 1,
429 [Define if you want the NTLM authorization support compiled in.])
430 NTLM_OBJ='http-ntlm.o'
433 dnl If SSL is unavailable and the user explicitly requested NTLM,
435 if test x"$ENABLE_NTLM" = xyes
437 AC_MSG_ERROR([NTLM authorization requested and OpenSSL not found; aborting])
443 dnl Find an md5 implementation.
446 if test x"$wget_need_md5" = xyes
448 dnl This should be moved to an AC_DEFUN, but I'm not sure how to
449 dnl manipulate MD5_OBJ from the defun.
454 dnl Check for the system MD5 library on Solaris. We don't check for
455 dnl something simple like "MD5Update" because there are a number of
456 dnl MD5 implementations that use that name. md5_calc is, hopefully,
457 dnl specific to the Solaris MD5 library.
458 if test x"$found_md5" = xno; then
459 AC_CHECK_LIB(md5, md5_calc, [
460 dnl Some installations have bogus <md5.h> in the compiler's
461 dnl include path, making the system md5 library useless.
462 AC_MSG_CHECKING([for working md5.h])
463 AC_COMPILE_IFELSE([#include <md5.h>
466 AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define to use Solaris MD5.])
469 AC_MSG_NOTICE([using the Solaris MD5 implementation])
470 ], [AC_MSG_RESULT(no)])
474 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
476 if test x"$found_md5" = xno; then
477 if test x"$ssl_success" = xyes; then
478 AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define to use OpenSSL MD5.])
480 AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
484 dnl If none of the above worked, use the one we ship with Wget.
485 if test x"$found_md5" = xno; then
486 AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define to use built-in MD5.])
487 MD5_OBJ="$MD5_OBJ gnu-md5.o"
489 AC_MSG_NOTICE([using the GNU MD5 implementation])
492 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
495 dnl **********************************************************************
497 dnl **********************************************************************
500 dnl If --enable-ipv6 is specified, we try to use IPv6 (as long as
501 dnl getaddrinfo is also present). If --disable-ipv6 is specified, we
502 dnl don't use IPv6 or getaddrinfo. Otherwise we detect IPv6 and use
503 dnl it where available.
507 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
508 [case "${enable_ipv6}" in
510 AC_MSG_NOTICE([disabling IPv6 at user request])
511 dnl Disable IPv6 checking
515 dnl IPv6 explicitly enabled: force its use (abort if unavailable).
520 dnl Auto-detect IPv6, i.e. check for IPv6, but don't force it.
524 AC_MSG_ERROR([Invalid --enable-ipv6 argument \`$enable_ipv6'])
528 dnl If nothing is specified, assume auto-detection.
533 if test "X$ipv6" = "Xyes"; then
534 AC_CHECK_FUNCS(getaddrinfo, [], [
535 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
540 if test "X$ipv6" = "Xyes"; then
542 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
547 if test "X$ipv6" = "Xyes"; then
548 TYPE_STRUCT_SOCKADDR_IN6([],[
549 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support \`struct sockaddr_in6'])
552 if test "X$ipv6" = "Xyes"; then
553 WGET_STRUCT_SOCKADDR_STORAGE
558 if test "X$ipv6" = "Xyes"; then
559 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
560 AC_MSG_NOTICE([Enabling support for IPv6.])
561 elif test "x$force_ipv6" = "xyes"; then
562 AC_MSG_ERROR([IPv6 support requested but not found; aborting])
567 dnl Set of available languages.
569 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
571 dnl Originally this used to be static, looking like this:
572 dnl ALL_LINGUAS="cs de hr it ..."
573 dnl The downside was that configure needed to be rebuilt whenever a
574 dnl new language was added.
576 dnl internationalization macros
580 dnl Find makeinfo. We used to provide support for Emacs processing
581 dnl Texinfo using `emacs -batch -eval ...' where makeinfo is
582 dnl unavailable, but that broke with the addition of makeinfo-specific
583 dnl command-line options, such as `-I'. Now we depend on makeinfo to
584 dnl build the Info documentation.
587 AC_CHECK_PROGS(MAKEINFO, [makeinfo], [true])
590 dnl Find perl and pod2man
593 AC_PATH_PROGS(PERL, [perl5 perl], no)
594 AC_PATH_PROG(POD2MAN, pod2man, no)
596 if test "x${POD2MAN}" = xno; then
597 COMMENT_IF_NO_POD2MAN="# "
599 COMMENT_IF_NO_POD2MAN=
601 AC_SUBST(COMMENT_IF_NO_POD2MAN)
606 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile util/Makefile
607 po/Makefile.in windows/Makefile])
608 AC_CONFIG_HEADERS([src/config.h])
610 #include "config-post.h"
612 AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
613 AC_CONFIG_COMMANDS([default], [WGET_PROCESS_PO])