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 $wget_save_CPPFLAGS"
330 dnl Check for all the OpenSSL includes that Wget actually uses.
331 dnl This will prune both invalid installations and ancient
332 dnl versions of OpenSSL that we can't use.
333 AC_MSG_CHECKING([for includes])
335 #include <openssl/ssl.h>
336 #include <openssl/bio.h>
337 #include <openssl/crypto.h>
338 #include <openssl/des.h>
339 #include <openssl/err.h>
340 #include <openssl/md4.h>
341 #include <openssl/pem.h>
342 #include <openssl/rand.h>
343 #include <openssl/x509.h>
346 ssl_found_includes=yes
348 AC_MSG_RESULT([not found])
351 if test x"$ssl_found_includes" = xno; then
357 dnl Make sure that the checks don't run afoul of the cache. It
358 dnl would be nicer to temporarily turn off the cache, but
359 dnl apparently Autoconf doesn't allow that.
361 unset ac_cv_lib_crypto_RSA_new
362 unset ac_cv_lib_ssl_SSL_new
364 dnl These checks need to be in this order, or you'll get a link
365 dnl failure if you use a static libcrypto.a and libssl.a rather
366 dnl than shared libraries.
368 AC_CHECK_LIB(crypto, RSA_new, , ssl_link_failure=yes)
369 AC_CHECK_LIB(ssl, SSL_new, , ssl_link_failure=yes)
371 if test x"$ssl_link_failure" = xyes; then
372 dnl One or both libs failed to link.
376 dnl The libraries link. But we still need to check if the program
377 dnl linked with those libraries under these settings with run. On
378 dnl some systems (Solaris), Gcc adds -L/usr/local/lib to the
379 dnl linking line, but fails to add -R/usr/local/lib, thus creating
380 dnl executables that link, but fail to run.
382 dnl If we are cross-compiling, just assume that working linkage
383 dnl implies working executable.
387 AC_MSG_CHECKING([whether SSL libs are resolved at runtime])
394 AC_MSG_RESULT(no); ssl_run_failure=yes,
398 if test x"$ssl_run_failure" = xno; then
404 if test x"$ssl_success" = xyes; then
405 AC_MSG_NOTICE([compiling in support for SSL in $ssl_root])
406 AC_DEFINE([HAVE_SSL], 1,
407 [Define if SSL support should be compiled in.])
408 AC_SUBST(SSL_INCLUDES)
412 LDFLAGS=$wget_save_LDFLAGS
415 dnl If linking with SSL was forced rather than auto-detected, then
416 dnl bail out if SSL failed.
417 if test x"$wget_force_ssl" = x"yes"; then
418 AC_MSG_ERROR([failed to find OpenSSL libraries], 2)
422 dnl Restore the compiler setting.
425 dnl Restore the CPPFLAGS. Do this regardless of whether linking
426 dnl with SSL succeeded -- SSL includes will be handled using
428 CPPFLAGS=$wget_save_CPPFLAGS
431 dnl Enable NTLM if requested and if SSL is available.
433 if test x"$ssl_success" = xyes
435 if test x"$ENABLE_NTLM" != xno
437 AC_DEFINE([ENABLE_NTLM], 1,
438 [Define if you want the NTLM authorization support compiled in.])
439 NTLM_OBJ='http-ntlm$o'
442 dnl If SSL is unavailable and the user explicitly requested NTLM,
444 if test x"$ENABLE_NTLM" = xyes
446 AC_MSG_ERROR([NTLM authorization requested and OpenSSL not found; aborting])
452 dnl Find an md5 implementation.
455 if test x"$wget_need_md5" = xyes
457 dnl This should be moved to an AC_DEFUN, but I'm not sure how to
458 dnl manipulate MD5_OBJ from the defun.
463 dnl Check for the system MD5 library on Solaris. We don't check for
464 dnl something simple like "MD5Update" because there are a number of
465 dnl MD5 implementations that use that name. md5_calc is, hopefully,
466 dnl specific to the Solaris MD5 library.
467 if test x"$found_md5" = xno; then
468 AC_CHECK_LIB(md5, md5_calc, [
469 dnl Some installations have bogus <md5.h> in the compiler's
470 dnl include path, making the system md5 library useless.
471 AC_MSG_CHECKING([for working md5.h])
472 AC_COMPILE_IFELSE([#include <md5.h>
475 AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define to use Solaris MD5.])
478 AC_MSG_NOTICE([using the Solaris MD5 implementation])
479 ], [AC_MSG_RESULT(no)])
483 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
485 if test x"$found_md5" = xno; then
486 if test x"$ssl_success" = xyes; then
487 AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define to use OpenSSL MD5.])
489 AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
493 dnl If none of the above worked, use the one we ship with Wget.
494 if test x"$found_md5" = xno; then
495 AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define to use built-in MD5.])
496 MD5_OBJ="$MD5_OBJ gnu-md5\$o"
498 AC_MSG_NOTICE([using the GNU MD5 implementation])
501 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
504 dnl **********************************************************************
506 dnl **********************************************************************
509 dnl If --enable-ipv6 is specified, we try to use IPv6 (as long as
510 dnl getaddrinfo is also present). If --disable-ipv6 is specified, we
511 dnl don't use IPv6 or getaddrinfo. Otherwise we detect IPv6 and use
512 dnl it where available.
516 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
517 [case "${enable_ipv6}" in
519 AC_MSG_NOTICE([disabling IPv6 at user request])
520 dnl Disable IPv6 checking
524 dnl IPv6 explicitly enabled: force its use (abort if unavailable).
529 dnl Auto-detect IPv6, i.e. check for IPv6, but don't force it.
533 AC_MSG_ERROR([Invalid --enable-ipv6 argument \`$enable_ipv6'])
537 dnl If nothing is specified, assume auto-detection.
542 if test "X$ipv6" = "Xyes"; then
543 AC_CHECK_FUNCS(getaddrinfo, [], [
544 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
549 if test "X$ipv6" = "Xyes"; then
551 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
556 if test "X$ipv6" = "Xyes"; then
557 TYPE_STRUCT_SOCKADDR_IN6([],[
558 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support \`struct sockaddr_in6'])
561 if test "X$ipv6" = "Xyes"; then
562 WGET_STRUCT_SOCKADDR_STORAGE
567 if test "X$ipv6" = "Xyes"; then
568 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
569 AC_MSG_NOTICE([Enabling support for IPv6.])
570 elif test "x$force_ipv6" = "xyes"; then
571 AC_MSG_ERROR([IPv6 support requested but not found; aborting])
576 dnl Set of available languages.
578 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
580 dnl Originally this used to be static, looking like this:
581 dnl ALL_LINGUAS="cs de hr it ..."
582 dnl The downside was that configure needed to be rebuilt whenever a
583 dnl new language was added.
585 dnl internationalization macros
589 dnl Find makeinfo. We used to provide support for Emacs processing
590 dnl Texinfo using `emacs -batch -eval ...' where makeinfo is
591 dnl unavailable, but that broke with the addition of makeinfo-specific
592 dnl command-line options, such as `-I'. Now we depend on makeinfo to
593 dnl build the Info documentation.
596 AC_CHECK_PROGS(MAKEINFO, [makeinfo], [true])
599 dnl Find perl and pod2man
602 AC_PATH_PROGS(PERL, [perl5 perl], no)
603 AC_PATH_PROG(POD2MAN, pod2man, no)
605 if test "x${POD2MAN}" = xno; then
606 COMMENT_IF_NO_POD2MAN="# "
608 COMMENT_IF_NO_POD2MAN=
610 AC_SUBST(COMMENT_IF_NO_POD2MAN)
615 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile util/Makefile
616 po/Makefile.in windows/Makefile])
617 AC_CONFIG_HEADERS([src/config.h])
619 #include "config-post.h"
621 AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
622 AC_CONFIG_COMMANDS([default], [WGET_PROCESS_PO])