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.
19 dnl Process this file with autoconf to produce a configure script.
22 AC_INIT(src/version.c)
24 AC_CONFIG_HEADER(src/config.h)
27 dnl What version of Wget are we building?
29 VERSION=`sed -e 's/^.*"\(.*\)";$/\1/' ${srcdir}/src/version.c`
30 echo "configuring for GNU Wget $VERSION"
36 dnl Get cannonical host
39 AC_DEFINE_UNQUOTED(OS_TYPE, "$host_os")
45 [ --with-socks use the socks library],
46 [AC_DEFINE(HAVE_SOCKS)])
49 [ --with-ssl[=SSL-ROOT] link with SSL support [default=auto]
50 --without-ssl disable SSL autodetection])
53 [ --disable-opie disable support for opie or s/key FTP login],
54 USE_OPIE=$enableval, USE_OPIE=yes)
55 test x"${USE_OPIE}" = xyes && AC_DEFINE(USE_OPIE)
58 [ --disable-digest disable support for HTTP digest authorization],
59 USE_DIGEST=$enableval, USE_DIGEST=yes)
60 test x"${USE_DIGEST}" = xyes && AC_DEFINE(USE_DIGEST)
63 [ --disable-debug disable support for debugging output],
64 DEBUG=$enableval, DEBUG=yes)
65 test x"${DEBUG}" = xyes && AC_DEFINE(DEBUG)
69 case "${USE_OPIE}${USE_DIGEST}" in
73 if test x"$USE_OPIE" = xyes; then
79 dnl Whether make sets $(MAKE)...
84 dnl Find a good install
92 dnl We want these before the checks, so the checks can modify their values.
93 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
94 test -z "$CC" && cc_specified=yes
99 dnl if the user hasn't specified CFLAGS, then
100 dnl if compiler is gcc, then use -O2 and some warning flags
101 dnl else use os-specific flags or -O
103 if test -n "$auto_cflags"; then
104 if test -n "$GCC"; then
105 CFLAGS="$CFLAGS -O2 -Wall -Wno-implicit"
108 *hpux*) CFLAGS="$CFLAGS +O3" ;;
109 *ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;;
110 *) CFLAGS="$CFLAGS -O" ;;
121 dnl Configure our included libtool and make sure it's regenerated when needed
124 AC_SUBST(LIBTOOL_DEPS)
127 dnl In case of {cyg,gnu}win32. Should be a _target_ test.
128 dnl Might also be erelevant for DJGPP.
131 *win32) exeext='.exe';;
137 dnl Check if we can handle prototypes.
142 dnl Checks for typedefs, structures, and compiler characteristics.
148 dnl #### This generates a warning. What do I do to shut it up?
151 # Check size of long.
152 AC_CHECK_SIZEOF(long)
153 AC_CHECK_SIZEOF(long long)
156 dnl Checks for headers
158 AC_CHECK_HEADERS(string.h stdarg.h unistd.h sys/time.h utime.h sys/utime.h pwd.h)
159 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h sys/utsname.h signal.h)
163 dnl Return type of signal-handlers
168 dnl Check for struct utimbuf
172 dnl Checks for library functions.
176 AC_CHECK_FUNCS(strdup strstr strcasecmp strncasecmp strpbrk memmove)
177 AC_CHECK_FUNCS(gettimeofday mktime strptime)
178 AC_CHECK_FUNCS(strerror snprintf vsnprintf select signal symlink access isatty)
179 AC_CHECK_FUNCS(uname gethostname usleep)
182 dnl Check if we need to compile in getopt.c.
184 AC_CHECK_FUNC(getopt_long, [], [
185 GETOPT_OBJ='getopt$o'
190 dnl Checks for libraries.
193 dnl On Solaris, -lnsl is needed to use gethostbyname. On "NCR MP-RAS
194 dnl 3.0", however, gethostbyname is in libc, but -lnsl is still needed
195 dnl to use -lsocket, as well as for functions such as inet_ntoa. We
196 dnl look for such known offenders and if one of them is not found, we
197 dnl check if -lnsl is needed.
199 wget_check_in_nsl=NONE
200 AC_CHECK_FUNCS(gethostbyname, [], [
201 wget_check_in_nsl=gethostbyname
203 AC_CHECK_FUNCS(inet_ntoa, [], [
204 wget_check_in_nsl=inet_ntoa
206 if test $wget_check_in_nsl != NONE; then
207 AC_CHECK_LIB(nsl, $wget_check_in_nsl)
210 AC_CHECK_LIB(socket, socket)
212 dnl #### This appears to be deficient with later versions of SOCKS.
213 if test "x${with_socks}" = xyes
215 AC_CHECK_LIB(resolv, main)
216 AC_CHECK_LIB(socks, Rconnect)
219 dnl $with_ssl can be one of:
220 dnl - empty string or "auto", meaning autodetect SSL and use it if found.
221 dnl - "yes", meaning link with SSL or bail out.
222 dnl - "no", meaning don't link with SSL.
223 dnl - anything else, meaning use that as the SSL root, and bail out
226 if test x"$with_ssl" = x; then
227 dnl Canonicalize unspecified with-ssl setting to "auto". This
228 dnl implements the "auto-detect by default" feature. If you want to
229 dnl change this to "ignore SSL by default", change "auto" to "no".
233 dnl Detection of OpenSSL is much hairier than the detection of other
234 dnl libraries because OpenSSL can be compiled as a third-party
235 dnl library, which means it will not be found without additional
236 dnl linker magic. It would be really nice to rework this check into
237 dnl an AC_DEFUN so that we can reuse it for other third-party
240 if test x"$with_ssl" != x"no"; then
243 if test x"$with_ssl" = x"yes"; then
247 if test x"$with_ssl" = x"yes" || test x"$with_ssl" = x"auto"; then
248 dnl OpenSSL's root was not specified, so we have to guess. First
249 dnl try the system default location, then "/usr/local/ssl" (where
250 dnl OpenSSL installs by default), then "/usr/local" (traditional
251 dnl choice for installation root), then "/opt".
252 ssl_all_roots="system-default /usr/local/ssl /usr/local /opt"
254 dnl Root has been specified by the user.
255 ssl_all_roots=$with_ssl
261 wget_save_LDFLAGS=$LDFLAGS
262 wget_save_CPPFLAGS=$CPPFLAGS
264 dnl Use libtool for OpenSSL tests so we can specify "-R<rpath>"
265 dnl without having to know how the linker handles it.
266 CC="$SHELL ./libtool $CC"
268 dnl Unfortunately, as of this writing (OpenSSL 0.9.6), the libcrypto
269 dnl shared library doesn't record its dependency on libdl, so we
270 dnl need to check for it ourselves so we won't fail to link due to a
271 dnl lack of -ldl. Most OSes use dlopen(), but HP-UX uses
273 AC_CHECK_LIB(dl,dlopen)
274 AC_CHECK_LIB(dl,shl_load)
278 dnl Now try to find SSL libraries in each of the likely SSL roots.
279 for ssl_root in $ssl_all_roots
281 if test x"$ssl_root" = x"system-default"; then
282 dnl Try the default include and library locations.
285 dnl Try this specific root.
286 SSL_INCLUDES=-I$ssl_root/include
287 dnl It's OK to use -R directly because libtool will
288 dnl interpret it for us.
289 LDFLAGS="-L$ssl_root/lib -R$ssl_root/lib $wget_save_LDFLAGS"
292 AC_MSG_RESULT(["Looking for SSL libraries in $ssl_root"])
294 dnl Check whether the compiler can find the include files. On
295 dnl some systems Gcc finds libraries in /usr/local/lib, but fails
296 dnl to find the includes in /usr/local/include.
298 ssl_found_includes=no
299 CPPFLAGS="$SSL_INCLUDES $wget_save_CPPFLAGS"
301 AC_MSG_CHECKING(["for includes"])
303 AC_TRY_CPP([#include <openssl/ssl.h>
304 #include <openssl/rsa.h>
306 AC_MSG_RESULT("found"); ssl_found_includes=yes,
307 AC_MSG_RESULT("not found")
310 if test x"$ssl_found_includes" = xno; then
316 dnl Make sure that the checks don't run afoul of the cache. It
317 dnl would be nicer to temporarily turn off the cache, but
318 dnl apparently Autoconf doesn't allow that.
320 unset ac_cv_lib_crypto_RSA_new
321 unset ac_cv_lib_ssl_SSL_new
323 dnl These checks need to be in this order, or you'll get a link
324 dnl failure if you use a static libcrypto.a and libssl.a rather
325 dnl than shared libraries.
327 AC_CHECK_LIB(crypto, RSA_new, , ssl_link_failure=yes)
328 AC_CHECK_LIB(ssl, SSL_new, , ssl_link_failure=yes)
330 if test x"$ssl_link_failure" = xyes; then
331 dnl One or both libs failed to link.
335 dnl The libraries link. But we still need to check if the program
336 dnl linked with those libraries under these settings with run. On
337 dnl some systems (Solaris), Gcc adds -L/usr/local/lib to the
338 dnl linking line, but fails to add -R/usr/local/lib, thus creating
339 dnl executables that link, but fail to run.
341 dnl If we are cross-compiling, just assume that working linkage
342 dnl implies working executable.
346 AC_MSG_CHECKING("whether SSL libs are resolved at runtime")
352 AC_MSG_RESULT("yes"),
353 AC_MSG_RESULT("no"); ssl_run_failure=yes,
354 AC_MSG_RESULT("cross")
357 if test x"$ssl_run_failure" = xno; then
363 if test x"$ssl_success" = xyes; then
364 dnl AC_MSG_RESULT doesn't look right here, but I'm not sure what
366 AC_MSG_RESULT("Compiling in support for SSL in $ssl_root")
368 AC_SUBST(SSL_INCLUDES)
369 SSL_OBJ='gen_sslfunc$o'
372 LDFLAGS=$wget_save_LDFLAGS
375 dnl If linking with SSL was forced rather than auto-detected, then
376 dnl bail out if SSL failed.
377 if test x"$wget_force_ssl" = x"yes"; then
379 echo "ERROR: Failed to find OpenSSL libraries."
384 dnl Restore the compiler setting.
387 dnl Restore the CPPFLAGS. Do this regardless of whether linking
388 dnl with SSL succeeded -- SSL includes will be handled using
390 CPPFLAGS=$wget_save_CPPFLAGS
394 dnl Find an md5 implementation.
397 if test x"$wget_need_md5" = xyes
403 dnl Check for the system MD5 library on Solaris. We don't check for
404 dnl something simple like "MD5Update" because there are a number of
405 dnl MD5 implementations that use that name. md5_calc is, hopefully,
406 dnl specific to the Solaris MD5 library.
407 if test x"$found_md5" = xno; then
408 AC_CHECK_LIB(md5, md5_calc, [
409 AC_DEFINE(HAVE_SOLARIS_MD5)
415 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
417 if test x"$found_md5" = xno; then
418 if test x"$ssl_success" = xyes; then
419 AC_DEFINE(HAVE_OPENSSL_MD5)
424 dnl If none of the above worked, use the one we ship with Wget.
425 if test x"$found_md5" = xno; then
426 AC_DEFINE(HAVE_BUILTIN_MD5)
428 MD5_OBJ="$MD5_OBJ gnu-md5\$o"
435 dnl Set of available languages.
437 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//')`
439 dnl Originally this used to be static, looking like this:
440 dnl ALL_LINGUAS="cs de hr it ..."
441 dnl The downside was that configure needed to be rebuilt whenever a
442 dnl new language was added.
444 dnl internationalization macros
448 dnl Find makeinfo. If makeinfo is not found, look for Emacs. If
449 dnl Emacs cannot be found, look for XEmacs.
452 AC_CHECK_PROGS(MAKEINFO, makeinfo emacs xemacs)
454 case "${MAKEINFO}" in
455 *makeinfo) MAKEINFO="${MAKEINFO} \$(srcdir)/wget.texi" ;;
456 *emacs | *xemacs) MAKEINFO="${MAKEINFO} -batch -q -no-site-file -eval '(find-file \"\$(srcdir)/wget.texi\")' -l texinfmt -f texinfo-format-buffer -f save-buffer" ;;
457 *) MAKEINFO="makeinfo \$(srcdir)/wget.texi" ;;
461 dnl Find perl and pod2man
464 AC_PATH_PROGS(PERL, perl5 perl, no)
465 AC_PATH_PROG(POD2MAN, pod2man, no)
467 if test "x${POD2MAN}" = xno; then
468 COMMENT_IF_NO_POD2MAN="# "
470 COMMENT_IF_NO_POD2MAN=
472 AC_SUBST(COMMENT_IF_NO_POD2MAN)
477 AC_OUTPUT([Makefile src/Makefile doc/Makefile util/Makefile po/Makefile.in
480 test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h])