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)
34 AC_CONFIG_HEADER(src/config.h)
37 dnl What version of Wget are we building?
39 VERSION=`sed -e 's/^.*"\(.*\)";$/\1/' ${srcdir}/src/version.c`
40 AC_MSG_NOTICE([configuring for GNU Wget $VERSION])
46 dnl Get cannonical host
49 AC_DEFINE_UNQUOTED([OS_TYPE], "$host_os",
50 [Define to be the name of the operating system.])
56 [ --with-socks use the socks library],
57 [AC_DEFINE([HAVE_SOCKS], [],
58 [Define if you wish to compile with socks support.])]
62 [[ --with-ssl[=SSL-ROOT] link with SSL support [default=auto]
63 --without-ssl disable SSL autodetection]])
66 [ --disable-opie disable support for opie or s/key FTP login],
67 USE_OPIE=$enableval, USE_OPIE=yes)
68 test x"${USE_OPIE}" = xyes && AC_DEFINE([USE_OPIE], [],
69 [Define if you want the Opie support for FTP compiled in.])
72 [ --disable-digest disable support for HTTP digest authorization],
73 USE_DIGEST=$enableval, USE_DIGEST=yes)
74 test x"${USE_DIGEST}" = xyes && AC_DEFINE([USE_DIGEST], [],
75 [Define if you want the HTTP Digest Authorization compiled in.])
78 [ --disable-debug disable support for debugging output],
79 ENABLE_DEBUG=$enableval, ENABLE_DEBUG=yes)
80 test x"${ENABLE_DEBUG}" = xyes && AC_DEFINE([ENABLE_DEBUG], [],
81 [Define if you want the debug output support compiled in.])
85 case "${USE_OPIE}${USE_DIGEST}" in
89 if test x"$USE_OPIE" = xyes; then
95 dnl Whether make sets $(MAKE)...
100 dnl Find a good install
105 dnl Find the compiler
108 dnl We want these before the checks, so the checks can modify their values.
109 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
110 test -z "$CC" && cc_specified=yes
115 dnl if the user hasn't specified CFLAGS, then
116 dnl if compiler is gcc, then use -O2 and some warning flags
117 dnl else use os-specific flags or -O
119 if test -n "$auto_cflags"; then
120 if test -n "$GCC"; then
121 CFLAGS="$CFLAGS -O2 -Wall -Wno-implicit"
124 *hpux*) CFLAGS="$CFLAGS +O3" ;;
125 *ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;;
126 *) CFLAGS="$CFLAGS -O" ;;
137 dnl Configure our included libtool and make sure it's regenerated when needed
140 AC_SUBST(LIBTOOL_DEPS)
143 dnl In case of {cyg,gnu}win32. Should be a _target_ test.
144 dnl Might also be erelevant for DJGPP.
147 *win32) exeext='.exe';;
153 dnl Check if we can handle prototypes.
158 dnl Checks for basic compiler characteristics.
166 dnl Checks for headers
168 AC_CHECK_HEADERS(string.h stdarg.h unistd.h sys/time.h utime.h sys/utime.h)
169 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h sys/utsname.h)
170 AC_CHECK_HEADERS(inttypes.h signal.h setjmp.h pwd.h)
174 dnl Check integral type sizes.
176 AC_CHECK_SIZEOF(short)
178 AC_CHECK_SIZEOF(long)
179 AC_CHECK_SIZEOF(long long)
182 dnl Checks for non-universal or system-specific types.
186 AC_CHECK_TYPES(uint32_t)
188 AC_CHECK_TYPES(sig_atomic_t, [], [], [
190 #include <sys/types.h>
192 # include <inttypes.h>
200 dnl Checks for library functions.
204 AC_CHECK_FUNCS(strdup strstr strcasecmp strncasecmp strpbrk memmove)
205 AC_CHECK_FUNCS(gettimeofday mktime strptime strerror snprintf vsnprintf)
206 AC_CHECK_FUNCS(usleep select sigblock sigsetjmp signal symlink access isatty)
209 dnl Call Wget's local macros defined in aclocal.
218 dnl Check if we need to compile in getopt.c.
220 AC_CHECK_FUNC(getopt_long, [], [
221 GETOPT_OBJ='getopt$o'
226 dnl Checks for libraries.
229 dnl #### This appears to be deficient with later versions of SOCKS.
230 if test "x${with_socks}" = xyes
232 AC_CHECK_LIB(resolv, main)
233 AC_CHECK_LIB(socks, Rconnect)
236 dnl $with_ssl can be one of:
237 dnl - empty string or "auto", meaning autodetect SSL and use it if found.
238 dnl - "yes", meaning link with SSL or bail out.
239 dnl - "no", meaning don't link with SSL.
240 dnl - anything else, meaning use that as the SSL root, and bail out
243 if test x"$with_ssl" = x; then
244 dnl Canonicalize unspecified with-ssl setting to "auto". This
245 dnl implements the "auto-detect by default" feature. If you want to
246 dnl change this to "ignore SSL by default", change "auto" to "no".
250 dnl Detection of OpenSSL is much hairier than the detection of other
251 dnl libraries because OpenSSL can be compiled as a third-party
252 dnl library, which means it will not be found without additional
253 dnl linker magic. It would be really nice to rework this check into
254 dnl an AC_DEFUN so that we can reuse it for other third-party
257 if test x"$with_ssl" != x"no"; then
260 if test x"$with_ssl" = x"yes"; then
264 if test x"$with_ssl" = x"yes" || test x"$with_ssl" = x"auto"; then
265 dnl OpenSSL's root was not specified, so we have to guess. First
266 dnl try the system default location, then "/usr/local/ssl" (where
267 dnl OpenSSL installs by default), then "/usr/local" (traditional
268 dnl choice for installation root), then "/opt".
269 ssl_all_roots="system-default /usr/local/ssl /usr/local /opt"
271 dnl Root has been specified by the user.
272 ssl_all_roots=$with_ssl
278 wget_save_LDFLAGS=$LDFLAGS
279 wget_save_CPPFLAGS=$CPPFLAGS
281 dnl Use libtool for OpenSSL tests so we can specify "-R<rpath>"
282 dnl without having to know how the linker handles it.
283 CC="$SHELL ./libtool $CC"
285 dnl Unfortunately, as of this writing (OpenSSL 0.9.6), the libcrypto
286 dnl shared library doesn't record its dependency on libdl, so we
287 dnl need to check for it ourselves so we won't fail to link due to a
288 dnl lack of -ldl. Most OSes use dlopen(), but HP-UX uses
290 AC_CHECK_LIB(dl,dlopen)
291 AC_CHECK_LIB(dl,shl_load)
295 dnl Now try to find SSL libraries in each of the likely SSL roots.
296 for ssl_root in $ssl_all_roots
298 if test x"$ssl_root" = x"system-default"; then
299 dnl Try the default include and library locations.
302 dnl Try this specific root.
303 SSL_INCLUDES=-I$ssl_root/include
304 dnl It's OK to use -R directly because libtool will
305 dnl interpret it for us.
306 LDFLAGS="-L$ssl_root/lib -R$ssl_root/lib $wget_save_LDFLAGS"
309 AC_MSG_NOTICE([looking for SSL libraries in $ssl_root])
311 dnl Check whether the compiler can find the include files. On
312 dnl some systems Gcc finds libraries in /usr/local/lib, but fails
313 dnl to find the includes in /usr/local/include.
315 ssl_found_includes=no
316 CPPFLAGS="$SSL_INCLUDES $wget_save_CPPFLAGS"
318 AC_MSG_CHECKING([for includes])
320 AC_TRY_CPP([#include <openssl/ssl.h>
321 #include <openssl/rsa.h>
323 AC_MSG_RESULT(found); ssl_found_includes=yes,
324 AC_MSG_RESULT([not found])
327 if test x"$ssl_found_includes" = xno; then
333 dnl Make sure that the checks don't run afoul of the cache. It
334 dnl would be nicer to temporarily turn off the cache, but
335 dnl apparently Autoconf doesn't allow that.
337 unset ac_cv_lib_crypto_RSA_new
338 unset ac_cv_lib_ssl_SSL_new
340 dnl These checks need to be in this order, or you'll get a link
341 dnl failure if you use a static libcrypto.a and libssl.a rather
342 dnl than shared libraries.
344 AC_CHECK_LIB(crypto, RSA_new, , ssl_link_failure=yes)
345 AC_CHECK_LIB(ssl, SSL_new, , ssl_link_failure=yes)
347 if test x"$ssl_link_failure" = xyes; then
348 dnl One or both libs failed to link.
352 dnl The libraries link. But we still need to check if the program
353 dnl linked with those libraries under these settings with run. On
354 dnl some systems (Solaris), Gcc adds -L/usr/local/lib to the
355 dnl linking line, but fails to add -R/usr/local/lib, thus creating
356 dnl executables that link, but fail to run.
358 dnl If we are cross-compiling, just assume that working linkage
359 dnl implies working executable.
363 AC_MSG_CHECKING([whether SSL libs are resolved at runtime])
370 AC_MSG_RESULT(no); ssl_run_failure=yes,
374 if test x"$ssl_run_failure" = xno; then
380 if test x"$ssl_success" = xyes; then
381 AC_MSG_NOTICE([compiling in support for SSL in $ssl_root])
382 AC_DEFINE([HAVE_SSL], [],
383 [Define if SSL support should be compiled in.])
384 AC_SUBST(SSL_INCLUDES)
385 SSL_OBJ='gen_sslfunc$o'
388 LDFLAGS=$wget_save_LDFLAGS
391 dnl If linking with SSL was forced rather than auto-detected, then
392 dnl bail out if SSL failed.
393 if test x"$wget_force_ssl" = x"yes"; then
394 AC_MSG_ERROR([failed to find OpenSSL libraries], 2)
398 dnl Restore the compiler setting.
401 dnl Restore the CPPFLAGS. Do this regardless of whether linking
402 dnl with SSL succeeded -- SSL includes will be handled using
404 CPPFLAGS=$wget_save_CPPFLAGS
408 dnl Find an md5 implementation.
411 if test x"$wget_need_md5" = xyes
413 dnl This should be moved to an AC_DEFUN, but I'm not sure how to
414 dnl manipulate MD5_OBJ from the defun.
419 dnl Check for the system MD5 library on Solaris. We don't check for
420 dnl something simple like "MD5Update" because there are a number of
421 dnl MD5 implementations that use that name. md5_calc is, hopefully,
422 dnl specific to the Solaris MD5 library.
423 if test x"$found_md5" = xno; then
424 AC_CHECK_LIB(md5, md5_calc, [
425 dnl Some installations have bogus <md5.h> in the compiler's
426 dnl include path, making the system md5 library useless.
427 AC_MSG_CHECKING([whether md5.h can be included])
428 AC_COMPILE_IFELSE([#include <md5.h>
431 AC_DEFINE([HAVE_SOLARIS_MD5], [], [Define to use Solaris MD5.])
434 AC_MSG_NOTICE([using the Solaris MD5 implementation])
435 ], [AC_MSG_RESULT(no)])
439 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
441 if test x"$found_md5" = xno; then
442 if test x"$ssl_success" = xyes; then
443 AC_DEFINE([HAVE_OPENSSL_MD5], [], [Define to use OpenSSL MD5.])
445 AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
449 dnl If none of the above worked, use the one we ship with Wget.
450 if test x"$found_md5" = xno; then
451 AC_DEFINE([HAVE_BUILTIN_MD5], [], [Define to use built-in MD5.])
452 MD5_OBJ="$MD5_OBJ gnu-md5\$o"
454 AC_MSG_NOTICE([using the GNU MD5 implementation])
457 AC_DEFINE([HAVE_MD5], [], [Define if we're compiling support for MD5.])
460 dnl **********************************************************************
462 dnl **********************************************************************
465 dnl If --enable-ipv6 is specified, we try to use IPv6 (as long as
466 dnl getaddrinfo is also present). If --disable-ipv6 is specified, we
467 dnl don't use IPv6 or getaddrinfo.
473 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
474 [case "${enable_ipv6}" in
476 AC_MSG_NOTICE([disabling IPv6 at user request])
483 dnl If unspecified, check for IPv6 and use it where available.
487 if test "X$ipv6" = "Xyes" || test "X$check_for_ipv6" = "Xyes"; then
488 AC_CHECK_FUNCS(getaddrinfo,[
489 GETADDRINFO_AI_ADDRCONFIG(
491 [HAVE_GETADDRINFO_AI_ADDRCONFIG], 1,
492 [Define if the system headers support the AI_ADDRCONFIG flag.]
495 GETADDRINFO_AI_V4MAPPED(
497 [HAVE_GETADDRINFO_AI_V4MAPPED], 1,
498 [Define if the system headers support the AI_V4MAPPED flag.]
503 [HAVE_GETADDRINFO_AI_ALL], 1,
504 [Define if the system headers support the AI_ALL flag.]
508 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
513 if test "X$ipv6" = "Xyes" || test "X$check_for_ipv6" = "Xyes"; then
515 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
520 if test "X$ipv6" = "Xyes" || test "X$check_for_ipv6" = "Xyes"; then
521 TYPE_STRUCT_SOCKADDR_IN6([
524 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support 'struct sockaddr_in6'])
527 if test "X$ipv6" = "Xyes"; then
532 if test "X$ipv6" = "Xyes"; then
533 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
538 dnl Set of available languages.
540 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
542 dnl Originally this used to be static, looking like this:
543 dnl ALL_LINGUAS="cs de hr it ..."
544 dnl The downside was that configure needed to be rebuilt whenever a
545 dnl new language was added.
547 dnl internationalization macros
551 dnl Find makeinfo. If makeinfo is not found, look for Emacs. If
552 dnl Emacs cannot be found, look for XEmacs.
555 AC_CHECK_PROGS(MAKEINFO, makeinfo emacs xemacs)
557 case "${MAKEINFO}" in
558 *makeinfo) MAKEINFO="${MAKEINFO} \$(srcdir)/wget.texi" ;;
559 *emacs | *xemacs) MAKEINFO="${MAKEINFO} -batch -q -no-site-file -eval '(find-file \"\$(srcdir)/wget.texi\")' -l texinfmt -f texinfo-format-buffer -f save-buffer" ;;
560 *) MAKEINFO="makeinfo \$(srcdir)/wget.texi" ;;
564 dnl Find perl and pod2man
567 AC_PATH_PROGS(PERL, perl5 perl, no)
568 AC_PATH_PROG(POD2MAN, pod2man, no)
570 if test "x${POD2MAN}" = xno; then
571 COMMENT_IF_NO_POD2MAN="# "
573 COMMENT_IF_NO_POD2MAN=
575 AC_SUBST(COMMENT_IF_NO_POD2MAN)
580 AC_OUTPUT([Makefile src/Makefile doc/Makefile util/Makefile po/Makefile.in
583 test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h])