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.])
55 [ --with-socks use the socks library],
56 [AC_DEFINE([HAVE_SOCKS], 1,
57 [Define if you wish to compile with socks support.])]
61 [[ --with-ssl[=SSL-ROOT] link with SSL support [default=auto]
62 --without-ssl disable SSL autodetection]])
65 [ --disable-opie disable support for opie or s/key FTP login],
66 USE_OPIE=$enableval, USE_OPIE=yes)
67 test x"${USE_OPIE}" = xyes && AC_DEFINE([USE_OPIE], 1,
68 [Define if you want the Opie support for FTP compiled in.])
71 [ --disable-digest disable support for HTTP digest authorization],
72 USE_DIGEST=$enableval, USE_DIGEST=yes)
73 test x"${USE_DIGEST}" = xyes && AC_DEFINE([USE_DIGEST], 1,
74 [Define if you want the HTTP Digest Authorization compiled in.])
77 [ --disable-debug disable support for debugging output],
78 ENABLE_DEBUG=$enableval, ENABLE_DEBUG=yes)
79 test x"${ENABLE_DEBUG}" = xyes && AC_DEFINE([ENABLE_DEBUG], 1,
80 [Define if you want the debug output support compiled in.])
84 case "${USE_OPIE}${USE_DIGEST}" in
88 if test x"$USE_OPIE" = xyes; then
94 dnl Whether make sets $(MAKE)...
99 dnl Find a good install
104 dnl Find the compiler
107 dnl We want these before the checks, so the checks can modify their values.
108 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
109 test -z "$CC" && cc_specified=yes
114 dnl if the user hasn't specified CFLAGS, then
115 dnl if compiler is gcc, then use -O2 and some warning flags
116 dnl else use os-specific flags or -O
118 if test -n "$auto_cflags"; then
119 if test -n "$GCC"; then
120 CFLAGS="$CFLAGS -O2 -Wall -Wno-implicit"
123 *hpux*) CFLAGS="$CFLAGS +O3" ;;
124 *ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;;
125 *) CFLAGS="$CFLAGS -O" ;;
136 dnl Configure our included libtool and make sure it's regenerated when needed
139 AC_SUBST(LIBTOOL_DEPS)
142 dnl In case of {cyg,gnu}win32. Should be a _target_ test.
143 dnl Might also be erelevant for DJGPP.
146 *win32) exeext='.exe';;
152 dnl Check if we can handle prototypes.
157 dnl Checks for basic compiler characteristics.
165 dnl Checks for headers
168 dnl Check for these even though we assume their presence. This is
169 dnl because Autoconf built-in macros expect their HAVE_* constants to
171 AC_CHECK_HEADERS(sys/types.h sys/stat.h)
173 AC_CHECK_HEADERS(string.h strings.h stdarg.h unistd.h sys/time.h)
174 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h utime.h sys/utime.h)
175 AC_CHECK_HEADERS(stdint.h inttypes.h signal.h setjmp.h pwd.h)
179 dnl Check integral type sizes.
181 AC_CHECK_SIZEOF(short)
183 AC_CHECK_SIZEOF(long)
184 AC_CHECK_SIZEOF(long long)
187 dnl Checks for non-universal or system-specific types.
191 AC_CHECK_TYPES(uint32_t)
193 AC_CHECK_TYPES(sig_atomic_t, [], [], [
195 #include <sys/types.h>
197 # include <inttypes.h>
205 dnl Checks for library functions.
209 AC_CHECK_FUNCS(strdup strstr strcasecmp strncasecmp strpbrk memmove)
210 AC_CHECK_FUNCS(gettimeofday mktime strptime strerror snprintf vsnprintf)
211 AC_CHECK_FUNCS(usleep select sigblock sigsetjmp signal symlink access isatty)
214 dnl Call Wget's local macros defined in aclocal.
223 dnl Check if we need to compile in getopt.c.
225 AC_CHECK_FUNC(getopt_long, [], [
226 GETOPT_OBJ='getopt$o'
231 dnl Checks for libraries.
234 dnl #### This appears to be deficient with later versions of SOCKS.
235 if test "x${with_socks}" = xyes
237 AC_CHECK_LIB(resolv, main)
238 AC_CHECK_LIB(socks, Rconnect)
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 $wget_save_CPPFLAGS"
323 AC_MSG_CHECKING([for includes])
325 AC_TRY_CPP([#include <openssl/ssl.h>
326 #include <openssl/rsa.h>
328 AC_MSG_RESULT(found); ssl_found_includes=yes,
329 AC_MSG_RESULT([not found])
332 if test x"$ssl_found_includes" = xno; then
338 dnl Make sure that the checks don't run afoul of the cache. It
339 dnl would be nicer to temporarily turn off the cache, but
340 dnl apparently Autoconf doesn't allow that.
342 unset ac_cv_lib_crypto_RSA_new
343 unset ac_cv_lib_ssl_SSL_new
345 dnl These checks need to be in this order, or you'll get a link
346 dnl failure if you use a static libcrypto.a and libssl.a rather
347 dnl than shared libraries.
349 AC_CHECK_LIB(crypto, RSA_new, , ssl_link_failure=yes)
350 AC_CHECK_LIB(ssl, SSL_new, , ssl_link_failure=yes)
352 if test x"$ssl_link_failure" = xyes; then
353 dnl One or both libs failed to link.
357 dnl The libraries link. But we still need to check if the program
358 dnl linked with those libraries under these settings with run. On
359 dnl some systems (Solaris), Gcc adds -L/usr/local/lib to the
360 dnl linking line, but fails to add -R/usr/local/lib, thus creating
361 dnl executables that link, but fail to run.
363 dnl If we are cross-compiling, just assume that working linkage
364 dnl implies working executable.
368 AC_MSG_CHECKING([whether SSL libs are resolved at runtime])
375 AC_MSG_RESULT(no); ssl_run_failure=yes,
379 if test x"$ssl_run_failure" = xno; then
385 if test x"$ssl_success" = xyes; then
386 AC_MSG_NOTICE([compiling in support for SSL in $ssl_root])
387 AC_DEFINE([HAVE_SSL], 1,
388 [Define if SSL support should be compiled in.])
389 AC_SUBST(SSL_INCLUDES)
390 SSL_OBJ='gen_sslfunc$o'
393 LDFLAGS=$wget_save_LDFLAGS
396 dnl If linking with SSL was forced rather than auto-detected, then
397 dnl bail out if SSL failed.
398 if test x"$wget_force_ssl" = x"yes"; then
399 AC_MSG_ERROR([failed to find OpenSSL libraries], 2)
403 dnl Restore the compiler setting.
406 dnl Restore the CPPFLAGS. Do this regardless of whether linking
407 dnl with SSL succeeded -- SSL includes will be handled using
409 CPPFLAGS=$wget_save_CPPFLAGS
413 dnl Find an md5 implementation.
416 if test x"$wget_need_md5" = xyes
418 dnl This should be moved to an AC_DEFUN, but I'm not sure how to
419 dnl manipulate MD5_OBJ from the defun.
424 dnl Check for the system MD5 library on Solaris. We don't check for
425 dnl something simple like "MD5Update" because there are a number of
426 dnl MD5 implementations that use that name. md5_calc is, hopefully,
427 dnl specific to the Solaris MD5 library.
428 if test x"$found_md5" = xno; then
429 AC_CHECK_LIB(md5, md5_calc, [
430 dnl Some installations have bogus <md5.h> in the compiler's
431 dnl include path, making the system md5 library useless.
432 AC_MSG_CHECKING([whether md5.h can be included])
433 AC_COMPILE_IFELSE([#include <md5.h>
436 AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define to use Solaris MD5.])
439 AC_MSG_NOTICE([using the Solaris MD5 implementation])
440 ], [AC_MSG_RESULT(no)])
444 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
446 if test x"$found_md5" = xno; then
447 if test x"$ssl_success" = xyes; then
448 AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define to use OpenSSL MD5.])
450 AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
454 dnl If none of the above worked, use the one we ship with Wget.
455 if test x"$found_md5" = xno; then
456 AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define to use built-in MD5.])
457 MD5_OBJ="$MD5_OBJ gnu-md5\$o"
459 AC_MSG_NOTICE([using the GNU MD5 implementation])
462 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
465 dnl **********************************************************************
467 dnl **********************************************************************
470 dnl If --enable-ipv6 is specified, we try to use IPv6 (as long as
471 dnl getaddrinfo is also present). If --disable-ipv6 is specified, we
472 dnl don't use IPv6 or getaddrinfo.
478 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
479 [case "${enable_ipv6}" in
481 AC_MSG_NOTICE([disabling IPv6 at user request])
488 dnl If unspecified, check for IPv6 and use it where available.
492 if test "X$ipv6" = "Xyes" || test "X$check_for_ipv6" = "Xyes"; then
493 AC_CHECK_FUNCS(getaddrinfo,[
494 GETADDRINFO_AI_ADDRCONFIG(
496 [HAVE_GETADDRINFO_AI_ADDRCONFIG], 1,
497 [Define if the system headers support the AI_ADDRCONFIG flag.]
500 GETADDRINFO_AI_V4MAPPED(
502 [HAVE_GETADDRINFO_AI_V4MAPPED], 1,
503 [Define if the system headers support the AI_V4MAPPED flag.]
508 [HAVE_GETADDRINFO_AI_ALL], 1,
509 [Define if the system headers support the AI_ALL flag.]
513 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
518 if test "X$ipv6" = "Xyes" || test "X$check_for_ipv6" = "Xyes"; then
520 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
525 if test "X$ipv6" = "Xyes" || test "X$check_for_ipv6" = "Xyes"; then
526 TYPE_STRUCT_SOCKADDR_IN6([
529 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support 'struct sockaddr_in6'])
532 if test "X$ipv6" = "Xyes"; then
537 if test "X$ipv6" = "Xyes"; then
538 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
543 dnl Set of available languages.
545 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
547 dnl Originally this used to be static, looking like this:
548 dnl ALL_LINGUAS="cs de hr it ..."
549 dnl The downside was that configure needed to be rebuilt whenever a
550 dnl new language was added.
552 dnl internationalization macros
556 dnl Find makeinfo. If makeinfo is not found, look for Emacs. If
557 dnl Emacs cannot be found, look for XEmacs.
560 AC_CHECK_PROGS(MAKEINFO, makeinfo emacs xemacs)
562 case "${MAKEINFO}" in
563 *makeinfo) MAKEINFO="${MAKEINFO} \$(srcdir)/wget.texi" ;;
564 *emacs | *xemacs) MAKEINFO="${MAKEINFO} -batch -q -no-site-file -eval '(find-file \"\$(srcdir)/wget.texi\")' -l texinfmt -f texinfo-format-buffer -f save-buffer" ;;
565 *) MAKEINFO="makeinfo \$(srcdir)/wget.texi" ;;
569 dnl Find perl and pod2man
572 AC_PATH_PROGS(PERL, perl5 perl, no)
573 AC_PATH_PROG(POD2MAN, pod2man, no)
575 if test "x${POD2MAN}" = xno; then
576 COMMENT_IF_NO_POD2MAN="# "
578 COMMENT_IF_NO_POD2MAN=
580 AC_SUBST(COMMENT_IF_NO_POD2MAN)
585 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile util/Makefile
586 po/Makefile.in windows/Makefile])
587 AC_CONFIG_HEADERS([src/config.h])
589 #include "config-post.h"
591 AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
592 AC_CONFIG_COMMANDS([default], [WGET_PROCESS_PO])