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 "$CC" && cc_specified=yes
114 dnl Turn on optimization by default. Specifically:
116 dnl if the user hasn't specified CFLAGS, then
117 dnl if compiler is gcc, then
118 dnl use -O2 and some warning flags
120 dnl use os-specific flags or -O
121 if test -n "$auto_cflags"; then
122 if test -n "$GCC"; then
123 CFLAGS="$CFLAGS -O2 -Wall -Wno-implicit"
126 *hpux*) CFLAGS="$CFLAGS +O3" ;;
127 *ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;;
128 *) CFLAGS="$CFLAGS -O" ;;
134 dnl Configure our included libtool and make sure it's regenerated when needed
137 AC_SUBST(LIBTOOL_DEPS)
140 dnl In case of {cyg,gnu}win32. Should be a _target_ test.
141 dnl Might also be erelevant for DJGPP.
144 *win32) exeext='.exe';;
150 dnl Checks for basic compiler characteristics.
158 if test x"$am_cv_prog_cc_stdc" != xno; then :
160 AC_SUBST(ANSI2KNR, [])
163 AC_SUBST(ANSI2KNR, [./ansi2knr])
167 dnl Checks for header files that might be missing.
170 dnl Check for basic headers, even those we assume the presence of.
171 dnl This is because Autoconf default includes check for STDC_HEADERS,
172 dnl HAVE_SYS_TYPES_H, etc. before including them.
174 AC_CHECK_HEADERS(sys/types.h sys/stat.h)
175 dnl Now check for the others.
176 AC_CHECK_HEADERS(string.h strings.h stdarg.h limits.h unistd.h sys/time.h)
177 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h utime.h sys/utime.h)
178 AC_CHECK_HEADERS(stdint.h inttypes.h signal.h setjmp.h pwd.h)
182 dnl Check integral type sizes.
184 AC_CHECK_SIZEOF(short)
186 AC_CHECK_SIZEOF(long)
187 AC_CHECK_SIZEOF(long long)
190 dnl Check for large file support. This check needs to come fairly
191 dnl early because it could (in principle) affect whether functions and
192 dnl headers are available, whether they work, etc.
195 AC_CHECK_SIZEOF(off_t)
198 dnl Checks for non-universal or system-specific types.
202 AC_CHECK_TYPES(uint32_t)
204 AC_CHECK_TYPES(sig_atomic_t, [], [], [
206 #include <sys/types.h>
208 # include <inttypes.h>
216 dnl Checks for library functions.
221 AC_CHECK_FUNCS(strdup strstr strcasecmp strncasecmp strpbrk memmove)
222 AC_CHECK_FUNCS(gettimeofday mktime strptime strerror snprintf vsnprintf)
223 AC_CHECK_FUNCS(usleep select ftello sigblock sigsetjmp signal)
224 AC_CHECK_FUNCS(symlink access isatty)
227 dnl Call Wget's local macros defined in aclocal.
237 dnl Check if we need to compile in getopt.c.
239 AC_CHECK_FUNC(getopt_long, [], [
240 GETOPT_OBJ='getopt$o'
245 dnl Checks for libraries.
248 dnl $with_ssl can be one of:
249 dnl - empty string or "auto", meaning autodetect SSL and use it if found.
250 dnl - "yes", meaning link with SSL or bail out.
251 dnl - "no", meaning don't link with SSL.
252 dnl - anything else, meaning use that as the SSL root, and bail out
255 if test x"$with_ssl" = x; then
256 dnl Canonicalize unspecified with-ssl setting to "auto". This
257 dnl implements the "auto-detect by default" feature. If you want to
258 dnl change this to "ignore SSL by default", change "auto" to "no".
262 dnl Detection of OpenSSL is much hairier than the detection of other
263 dnl libraries because OpenSSL can be compiled as a third-party
264 dnl library, which means it will not be found without additional
265 dnl linker magic. It would be really nice to rework this check into
266 dnl an AC_DEFUN so that we can reuse it for other third-party
269 if test x"$with_ssl" != x"no"; then
272 if test x"$with_ssl" = x"yes"; then
276 if test x"$with_ssl" = x"yes" || test x"$with_ssl" = x"auto"; then
277 dnl OpenSSL's root was not specified, so we have to guess. First
278 dnl try the system default location, then "/usr/local/ssl" (where
279 dnl OpenSSL installs by default), then "/usr/local" (traditional
280 dnl choice for installation root), then "/opt".
281 ssl_all_roots="system-default /usr/local/ssl /usr/local /opt"
283 dnl Root has been specified by the user.
284 ssl_all_roots=$with_ssl
290 wget_save_LDFLAGS=$LDFLAGS
291 wget_save_CPPFLAGS=$CPPFLAGS
293 dnl Use libtool for OpenSSL tests so we can specify "-R<rpath>"
294 dnl without having to know how the linker handles it.
295 CC="$SHELL ./libtool $CC"
297 dnl Unfortunately, as of this writing (OpenSSL 0.9.6), the libcrypto
298 dnl shared library doesn't record its dependency on libdl, so we
299 dnl need to check for it ourselves so we won't fail to link due to a
300 dnl lack of -ldl. Most OSes use dlopen(), but HP-UX uses
302 AC_CHECK_LIB(dl,dlopen)
303 AC_CHECK_LIB(dl,shl_load)
307 dnl Now try to find SSL libraries in each of the likely SSL roots.
308 for ssl_root in $ssl_all_roots
310 if test x"$ssl_root" = x"system-default"; then
311 dnl Try the default include and library locations.
314 dnl Try this specific root.
315 SSL_INCLUDES=-I$ssl_root/include
316 dnl It's OK to use -R directly because libtool will
317 dnl interpret it for us.
318 LDFLAGS="-L$ssl_root/lib -R$ssl_root/lib $wget_save_LDFLAGS"
321 AC_MSG_NOTICE([looking for SSL libraries in $ssl_root])
323 dnl Check whether the compiler can find the include files. On
324 dnl some systems Gcc finds libraries in /usr/local/lib, but fails
325 dnl to find the includes in /usr/local/include.
327 ssl_found_includes=no
328 CPPFLAGS="$SSL_INCLUDES $wget_save_CPPFLAGS"
330 dnl Check for all the OpenSSL includes that Wget actually uses.
331 dnl This will prune both invalid installations and ancient
332 dnl versions of OpenSSL that we can't use.
333 AC_MSG_CHECKING([for includes])
335 #include <openssl/ssl.h>
336 #include <openssl/x509.h>
337 #include <openssl/err.h>
338 #include <openssl/rand.h>
339 #include <openssl/des.h>
340 #include <openssl/md4.h>
341 #include <openssl/md5.h>
344 ssl_found_includes=yes
346 AC_MSG_RESULT([not found])
349 if test x"$ssl_found_includes" = xno; then
355 dnl Make sure that the checks don't run afoul of the cache. It
356 dnl would be nicer to temporarily turn off the cache, but
357 dnl apparently Autoconf doesn't allow that.
359 unset ac_cv_lib_crypto_RSA_new
360 unset ac_cv_lib_ssl_SSL_new
362 dnl These checks need to be in this order, or you'll get a link
363 dnl failure if you use a static libcrypto.a and libssl.a rather
364 dnl than shared libraries.
366 AC_CHECK_LIB(crypto, RSA_new, , ssl_link_failure=yes)
367 AC_CHECK_LIB(ssl, SSL_new, , ssl_link_failure=yes)
369 if test x"$ssl_link_failure" = xyes; then
370 dnl One or both libs failed to link.
374 dnl The libraries link. But we still need to check if the program
375 dnl linked with those libraries under these settings with run. On
376 dnl some systems (Solaris), Gcc adds -L/usr/local/lib to the
377 dnl linking line, but fails to add -R/usr/local/lib, thus creating
378 dnl executables that link, but fail to run.
380 dnl If we are cross-compiling, just assume that working linkage
381 dnl implies working executable.
385 AC_MSG_CHECKING([whether SSL libs are resolved at runtime])
392 AC_MSG_RESULT(no); ssl_run_failure=yes,
396 if test x"$ssl_run_failure" = xno; then
402 if test x"$ssl_success" = xyes; then
403 AC_MSG_NOTICE([compiling in support for SSL in $ssl_root])
404 AC_DEFINE([HAVE_SSL], 1,
405 [Define if SSL support should be compiled in.])
406 AC_SUBST(SSL_INCLUDES)
410 LDFLAGS=$wget_save_LDFLAGS
413 dnl If linking with SSL was forced rather than auto-detected, then
414 dnl bail out if SSL failed.
415 if test x"$wget_force_ssl" = x"yes"; then
416 AC_MSG_ERROR([failed to find OpenSSL libraries], 2)
420 dnl Restore the compiler setting.
423 dnl Restore the CPPFLAGS. Do this regardless of whether linking
424 dnl with SSL succeeded -- SSL includes will be handled using
426 CPPFLAGS=$wget_save_CPPFLAGS
429 dnl Enable NTLM if requested and if SSL is available.
431 if test x"$ssl_success" = xyes
433 if test x"$ENABLE_NTLM" != xno
435 AC_DEFINE([ENABLE_NTLM], 1,
436 [Define if you want the NTLM authorization support compiled in.])
437 NTLM_OBJ='http-ntlm$o'
440 dnl If SSL is unavailable and the user explicitly requested NTLM,
442 if test x"$ENABLE_NTLM" = xyes
444 AC_MSG_ERROR([NTLM authorization requested and OpenSSL not found; aborting])
450 dnl Find an md5 implementation.
453 if test x"$wget_need_md5" = xyes
455 dnl This should be moved to an AC_DEFUN, but I'm not sure how to
456 dnl manipulate MD5_OBJ from the defun.
461 dnl Check for the system MD5 library on Solaris. We don't check for
462 dnl something simple like "MD5Update" because there are a number of
463 dnl MD5 implementations that use that name. md5_calc is, hopefully,
464 dnl specific to the Solaris MD5 library.
465 if test x"$found_md5" = xno; then
466 AC_CHECK_LIB(md5, md5_calc, [
467 dnl Some installations have bogus <md5.h> in the compiler's
468 dnl include path, making the system md5 library useless.
469 AC_MSG_CHECKING([for working md5.h])
470 AC_COMPILE_IFELSE([#include <md5.h>
473 AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define to use Solaris MD5.])
476 AC_MSG_NOTICE([using the Solaris MD5 implementation])
477 ], [AC_MSG_RESULT(no)])
481 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
483 if test x"$found_md5" = xno; then
484 if test x"$ssl_success" = xyes; then
485 AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define to use OpenSSL MD5.])
487 AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
491 dnl If none of the above worked, use the one we ship with Wget.
492 if test x"$found_md5" = xno; then
493 AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define to use built-in MD5.])
494 MD5_OBJ="$MD5_OBJ gnu-md5\$o"
496 AC_MSG_NOTICE([using the GNU MD5 implementation])
499 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
502 dnl **********************************************************************
504 dnl **********************************************************************
507 dnl If --enable-ipv6 is specified, we try to use IPv6 (as long as
508 dnl getaddrinfo is also present). If --disable-ipv6 is specified, we
509 dnl don't use IPv6 or getaddrinfo. Otherwise we detect IPv6 and use
510 dnl it where available.
514 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
515 [case "${enable_ipv6}" in
517 AC_MSG_NOTICE([disabling IPv6 at user request])
518 dnl Disable IPv6 checking
522 dnl IPv6 explicitly enabled: force its use (abort if unavailable).
527 dnl Auto-detect IPv6, i.e. check for IPv6, but don't force it.
531 AC_MSG_ERROR([Invalid --enable-ipv6 argument \`$enable_ipv6'])
535 dnl If nothing is specified, assume auto-detection.
540 if test "X$ipv6" = "Xyes"; then
541 AC_CHECK_FUNCS(getaddrinfo, [], [
542 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
547 if test "X$ipv6" = "Xyes"; then
549 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
554 if test "X$ipv6" = "Xyes"; then
555 TYPE_STRUCT_SOCKADDR_IN6([],[
556 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support \`struct sockaddr_in6'])
559 if test "X$ipv6" = "Xyes"; then
560 WGET_STRUCT_SOCKADDR_STORAGE
565 if test "X$ipv6" = "Xyes"; then
566 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
567 AC_MSG_NOTICE([Enabling support for IPv6.])
568 elif test "x$force_ipv6" = "xyes"; then
569 AC_MSG_ERROR([IPv6 support requested but not found; aborting])
574 dnl Set of available languages.
576 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
578 dnl Originally this used to be static, looking like this:
579 dnl ALL_LINGUAS="cs de hr it ..."
580 dnl The downside was that configure needed to be rebuilt whenever a
581 dnl new language was added.
583 dnl internationalization macros
587 dnl Find makeinfo. We used to provide support for Emacs processing
588 dnl Texinfo using `emacs -batch -eval ...' where makeinfo is
589 dnl unavailable, but that broke with the addition of makeinfo-specific
590 dnl command-line options, such as `-I'. Now we depend on makeinfo to
591 dnl build the Info documentation.
594 AC_CHECK_PROGS(MAKEINFO, [makeinfo], [true])
597 dnl Find perl and pod2man
600 AC_PATH_PROGS(PERL, [perl5 perl], no)
601 AC_PATH_PROG(POD2MAN, pod2man, no)
603 if test "x${POD2MAN}" = xno; then
604 COMMENT_IF_NO_POD2MAN="# "
606 COMMENT_IF_NO_POD2MAN=
608 AC_SUBST(COMMENT_IF_NO_POD2MAN)
613 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile util/Makefile
614 po/Makefile.in windows/Makefile])
615 AC_CONFIG_HEADERS([src/config.h])
617 #include "config-post.h"
619 AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
620 AC_CONFIG_COMMANDS([default], [WGET_PROCESS_PO])