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 USE_OPIE=$enableval, USE_OPIE=yes)
62 test x"${USE_OPIE}" = xyes && AC_DEFINE([USE_OPIE], 1,
63 [Define if you want the Opie support for FTP compiled in.])
66 [ --disable-digest disable support for HTTP digest authorization],
67 USE_DIGEST=$enableval, USE_DIGEST=yes)
68 test x"${USE_DIGEST}" = xyes && AC_DEFINE([USE_DIGEST], 1,
69 [Define if you want the HTTP Digest Authorization compiled in.])
72 [ --disable-debug disable support for debugging output],
73 ENABLE_DEBUG=$enableval, ENABLE_DEBUG=yes)
74 test x"${ENABLE_DEBUG}" = xyes && AC_DEFINE([ENABLE_DEBUG], 1,
75 [Define if you want the debug output support compiled in.])
79 case "${USE_OPIE}${USE_DIGEST}" in
83 if test x"$USE_OPIE" = xyes; then
89 dnl Whether make sets $(MAKE)...
94 dnl Find a good install
102 dnl We want these before the checks, so the checks can modify their values.
103 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
104 test -z "$CC" && cc_specified=yes
110 dnl Turn on optimization by default. Specifically:
112 dnl if the user hasn't specified CFLAGS, then
113 dnl if compiler is gcc, then
114 dnl use -O2 and some warning flags
116 dnl use os-specific flags or -O
117 if test -n "$auto_cflags"; then
118 if test -n "$GCC"; then
119 CFLAGS="$CFLAGS -O2 -Wall -Wno-implicit"
122 *hpux*) CFLAGS="$CFLAGS +O3" ;;
123 *ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;;
124 *) CFLAGS="$CFLAGS -O" ;;
130 dnl Configure our included libtool and make sure it's regenerated when needed
133 AC_SUBST(LIBTOOL_DEPS)
136 dnl In case of {cyg,gnu}win32. Should be a _target_ test.
137 dnl Might also be erelevant for DJGPP.
140 *win32) exeext='.exe';;
146 dnl Checks for basic compiler characteristics.
154 if test x"$am_cv_prog_cc_stdc" != xno; then :
156 AC_SUBST(ANSI2KNR, [])
159 AC_SUBST(ANSI2KNR, [./ansi2knr])
163 dnl Checks for header files that might be missing.
166 dnl Check for basic headers, even those we assume the presence of.
167 dnl This is because Autoconf default includes check for STDC_HEADERS,
168 dnl HAVE_SYS_TYPES_H, etc. before including them.
170 AC_CHECK_HEADERS(sys/types.h sys/stat.h)
171 dnl Now check for the others.
172 AC_CHECK_HEADERS(string.h strings.h stdarg.h limits.h unistd.h sys/time.h)
173 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h utime.h sys/utime.h)
174 AC_CHECK_HEADERS(stdint.h inttypes.h signal.h setjmp.h pwd.h)
178 dnl Check integral type sizes.
180 AC_CHECK_SIZEOF(short)
182 AC_CHECK_SIZEOF(long)
183 AC_CHECK_SIZEOF(long long)
186 dnl Checks for non-universal or system-specific types.
190 AC_CHECK_TYPES(uint32_t)
192 AC_CHECK_TYPES(sig_atomic_t, [], [], [
194 #include <sys/types.h>
196 # include <inttypes.h>
204 dnl Checks for library functions.
208 AC_CHECK_FUNCS(strdup strstr strcasecmp strncasecmp strpbrk memmove)
209 AC_CHECK_FUNCS(gettimeofday mktime strptime strerror snprintf vsnprintf)
210 AC_CHECK_FUNCS(usleep select sigblock sigsetjmp signal symlink access isatty)
213 dnl Call Wget's local macros defined in aclocal.
222 dnl Check if we need to compile in getopt.c.
224 AC_CHECK_FUNC(getopt_long, [], [
225 GETOPT_OBJ='getopt$o'
230 dnl Checks for libraries.
233 dnl $with_ssl can be one of:
234 dnl - empty string or "auto", meaning autodetect SSL and use it if found.
235 dnl - "yes", meaning link with SSL or bail out.
236 dnl - "no", meaning don't link with SSL.
237 dnl - anything else, meaning use that as the SSL root, and bail out
240 if test x"$with_ssl" = x; then
241 dnl Canonicalize unspecified with-ssl setting to "auto". This
242 dnl implements the "auto-detect by default" feature. If you want to
243 dnl change this to "ignore SSL by default", change "auto" to "no".
247 dnl Detection of OpenSSL is much hairier than the detection of other
248 dnl libraries because OpenSSL can be compiled as a third-party
249 dnl library, which means it will not be found without additional
250 dnl linker magic. It would be really nice to rework this check into
251 dnl an AC_DEFUN so that we can reuse it for other third-party
254 if test x"$with_ssl" != x"no"; then
257 if test x"$with_ssl" = x"yes"; then
261 if test x"$with_ssl" = x"yes" || test x"$with_ssl" = x"auto"; then
262 dnl OpenSSL's root was not specified, so we have to guess. First
263 dnl try the system default location, then "/usr/local/ssl" (where
264 dnl OpenSSL installs by default), then "/usr/local" (traditional
265 dnl choice for installation root), then "/opt".
266 ssl_all_roots="system-default /usr/local/ssl /usr/local /opt"
268 dnl Root has been specified by the user.
269 ssl_all_roots=$with_ssl
275 wget_save_LDFLAGS=$LDFLAGS
276 wget_save_CPPFLAGS=$CPPFLAGS
278 dnl Use libtool for OpenSSL tests so we can specify "-R<rpath>"
279 dnl without having to know how the linker handles it.
280 CC="$SHELL ./libtool $CC"
282 dnl Unfortunately, as of this writing (OpenSSL 0.9.6), the libcrypto
283 dnl shared library doesn't record its dependency on libdl, so we
284 dnl need to check for it ourselves so we won't fail to link due to a
285 dnl lack of -ldl. Most OSes use dlopen(), but HP-UX uses
287 AC_CHECK_LIB(dl,dlopen)
288 AC_CHECK_LIB(dl,shl_load)
292 dnl Now try to find SSL libraries in each of the likely SSL roots.
293 for ssl_root in $ssl_all_roots
295 if test x"$ssl_root" = x"system-default"; then
296 dnl Try the default include and library locations.
299 dnl Try this specific root.
300 SSL_INCLUDES=-I$ssl_root/include
301 dnl It's OK to use -R directly because libtool will
302 dnl interpret it for us.
303 LDFLAGS="-L$ssl_root/lib -R$ssl_root/lib $wget_save_LDFLAGS"
306 AC_MSG_NOTICE([looking for SSL libraries in $ssl_root])
308 dnl Check whether the compiler can find the include files. On
309 dnl some systems Gcc finds libraries in /usr/local/lib, but fails
310 dnl to find the includes in /usr/local/include.
312 ssl_found_includes=no
313 CPPFLAGS="$SSL_INCLUDES $wget_save_CPPFLAGS"
315 AC_MSG_CHECKING([for includes])
317 #include <openssl/ssl.h>
318 #include <openssl/rsa.h>
321 ssl_found_includes=yes
323 AC_MSG_RESULT([not found])
326 if test x"$ssl_found_includes" = xno; then
332 dnl Make sure that the checks don't run afoul of the cache. It
333 dnl would be nicer to temporarily turn off the cache, but
334 dnl apparently Autoconf doesn't allow that.
336 unset ac_cv_lib_crypto_RSA_new
337 unset ac_cv_lib_ssl_SSL_new
339 dnl These checks need to be in this order, or you'll get a link
340 dnl failure if you use a static libcrypto.a and libssl.a rather
341 dnl than shared libraries.
343 AC_CHECK_LIB(crypto, RSA_new, , ssl_link_failure=yes)
344 AC_CHECK_LIB(ssl, SSL_new, , ssl_link_failure=yes)
346 if test x"$ssl_link_failure" = xyes; then
347 dnl One or both libs failed to link.
351 dnl The libraries link. But we still need to check if the program
352 dnl linked with those libraries under these settings with run. On
353 dnl some systems (Solaris), Gcc adds -L/usr/local/lib to the
354 dnl linking line, but fails to add -R/usr/local/lib, thus creating
355 dnl executables that link, but fail to run.
357 dnl If we are cross-compiling, just assume that working linkage
358 dnl implies working executable.
362 AC_MSG_CHECKING([whether SSL libs are resolved at runtime])
369 AC_MSG_RESULT(no); ssl_run_failure=yes,
373 if test x"$ssl_run_failure" = xno; then
379 if test x"$ssl_success" = xyes; then
380 AC_MSG_NOTICE([compiling in support for SSL in $ssl_root])
381 AC_DEFINE([HAVE_SSL], 1,
382 [Define if SSL support should be compiled in.])
383 AC_SUBST(SSL_INCLUDES)
384 SSL_OBJ='gen_sslfunc$o'
387 LDFLAGS=$wget_save_LDFLAGS
390 dnl If linking with SSL was forced rather than auto-detected, then
391 dnl bail out if SSL failed.
392 if test x"$wget_force_ssl" = x"yes"; then
393 AC_MSG_ERROR([failed to find OpenSSL libraries], 2)
397 dnl Restore the compiler setting.
400 dnl Restore the CPPFLAGS. Do this regardless of whether linking
401 dnl with SSL succeeded -- SSL includes will be handled using
403 CPPFLAGS=$wget_save_CPPFLAGS
407 dnl Find an md5 implementation.
410 if test x"$wget_need_md5" = xyes
412 dnl This should be moved to an AC_DEFUN, but I'm not sure how to
413 dnl manipulate MD5_OBJ from the defun.
418 dnl Check for the system MD5 library on Solaris. We don't check for
419 dnl something simple like "MD5Update" because there are a number of
420 dnl MD5 implementations that use that name. md5_calc is, hopefully,
421 dnl specific to the Solaris MD5 library.
422 if test x"$found_md5" = xno; then
423 AC_CHECK_LIB(md5, md5_calc, [
424 dnl Some installations have bogus <md5.h> in the compiler's
425 dnl include path, making the system md5 library useless.
426 AC_MSG_CHECKING([for working md5.h])
427 AC_COMPILE_IFELSE([#include <md5.h>
430 AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define to use Solaris MD5.])
433 AC_MSG_NOTICE([using the Solaris MD5 implementation])
434 ], [AC_MSG_RESULT(no)])
438 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
440 if test x"$found_md5" = xno; then
441 if test x"$ssl_success" = xyes; then
442 AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define to use OpenSSL MD5.])
444 AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
448 dnl If none of the above worked, use the one we ship with Wget.
449 if test x"$found_md5" = xno; then
450 AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define to use built-in MD5.])
451 MD5_OBJ="$MD5_OBJ gnu-md5\$o"
453 AC_MSG_NOTICE([using the GNU MD5 implementation])
456 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
459 dnl **********************************************************************
461 dnl **********************************************************************
464 dnl If --enable-ipv6 is specified, we try to use IPv6 (as long as
465 dnl getaddrinfo is also present). If --disable-ipv6 is specified, we
466 dnl don't use IPv6 or getaddrinfo.
472 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
473 [case "${enable_ipv6}" in
475 AC_MSG_NOTICE([disabling IPv6 at user request])
482 dnl If unspecified, check for IPv6 and use it where available.
486 if test "X$ipv6" = "Xyes" || test "X$check_for_ipv6" = "Xyes"; then
487 AC_CHECK_FUNCS(getaddrinfo, [
488 GETADDRINFO_AI_ADDRCONFIG([
490 [HAVE_GETADDRINFO_AI_ADDRCONFIG], 1,
491 [Define if the system headers support the AI_ADDRCONFIG flag.]
495 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
500 if test "X$ipv6" = "Xyes" || test "X$check_for_ipv6" = "Xyes"; then
502 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
507 if test "X$ipv6" = "Xyes" || test "X$check_for_ipv6" = "Xyes"; then
508 TYPE_STRUCT_SOCKADDR_IN6([
511 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support 'struct sockaddr_in6'])
514 if test "X$ipv6" = "Xyes"; then
515 WGET_STRUCT_SOCKADDR_STORAGE
520 if test "X$ipv6" = "Xyes"; then
521 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
526 dnl Set of available languages.
528 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
530 dnl Originally this used to be static, looking like this:
531 dnl ALL_LINGUAS="cs de hr it ..."
532 dnl The downside was that configure needed to be rebuilt whenever a
533 dnl new language was added.
535 dnl internationalization macros
539 dnl Find makeinfo. We used to provide support for Emacs processing
540 dnl Texinfo using `emacs -batch -eval ...' where makeinfo is
541 dnl unavailable, but that broke with the addition of makeinfo-specific
542 dnl command-line options, such as `-I'. Now we depend on makeinfo to
543 dnl build the Info documentation.
546 AC_CHECK_PROGS(MAKEINFO, makeinfo)
549 dnl Find perl and pod2man
552 AC_PATH_PROGS(PERL, perl5 perl, no)
553 AC_PATH_PROG(POD2MAN, pod2man, no)
555 if test "x${POD2MAN}" = xno; then
556 COMMENT_IF_NO_POD2MAN="# "
558 COMMENT_IF_NO_POD2MAN=
560 AC_SUBST(COMMENT_IF_NO_POD2MAN)
565 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile util/Makefile
566 po/Makefile.in windows/Makefile])
567 AC_CONFIG_HEADERS([src/config.h])
569 #include "config-post.h"
571 AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
572 AC_CONFIG_COMMANDS([default], [WGET_PROCESS_PO])