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="$CFLAGS -O" ;;
121 dnl Configure our included libtool and make sure it's regenerated when needed
124 AC_SUBST(LIBTOOL_DEPS)
127 dnl In case of {cyg,gnu}win32. Should be a _target_ test.
128 dnl Might also be erelevant for DJGPP.
131 *win32) exeext='.exe';;
137 dnl Check if we can handle prototypes.
142 dnl Checks for typedefs, structures, and compiler characteristics.
148 dnl #### This generates a warning. What do I do to shut it up?
151 # Check size of long.
152 AC_CHECK_SIZEOF(long)
153 AC_CHECK_SIZEOF(long long)
156 dnl Checks for headers
158 AC_CHECK_HEADERS(string.h stdarg.h unistd.h sys/time.h utime.h sys/utime.h pwd.h)
159 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h sys/utsname.h)
160 AC_CHECK_HEADERS(signal.h setjmp.h)
164 dnl Return type of signal-handlers
169 dnl Check for struct utimbuf
173 dnl Checks for library functions.
177 AC_CHECK_FUNCS(strdup strstr strcasecmp strncasecmp strpbrk memmove)
178 AC_CHECK_FUNCS(gettimeofday mktime strptime strerror snprintf vsnprintf)
179 AC_CHECK_FUNCS(select sigblock sigsetjmp signal symlink access isatty)
180 AC_CHECK_FUNCS(uname gethostname usleep)
183 dnl Check if we need to compile in getopt.c.
185 AC_CHECK_FUNC(getopt_long, [], [
186 GETOPT_OBJ='getopt$o'
191 dnl Checks for libraries.
194 dnl On Solaris, -lnsl is needed to use gethostbyname. On "NCR MP-RAS
195 dnl 3.0", however, gethostbyname is in libc, but -lnsl is still needed
196 dnl to use -lsocket, as well as for functions such as inet_ntoa. We
197 dnl look for such known offenders and if one of them is not found, we
198 dnl check if -lnsl is needed.
200 wget_check_in_nsl=NONE
201 AC_CHECK_FUNCS(gethostbyname, [], [
202 wget_check_in_nsl=gethostbyname
204 AC_CHECK_FUNCS(inet_ntoa, [], [
205 wget_check_in_nsl=inet_ntoa
207 if test $wget_check_in_nsl != NONE; then
208 AC_CHECK_LIB(nsl, $wget_check_in_nsl)
211 AC_CHECK_LIB(socket, socket)
213 dnl #### This appears to be deficient with later versions of SOCKS.
214 if test "x${with_socks}" = xyes
216 AC_CHECK_LIB(resolv, main)
217 AC_CHECK_LIB(socks, Rconnect)
220 dnl $with_ssl can be one of:
221 dnl - empty string or "auto", meaning autodetect SSL and use it if found.
222 dnl - "yes", meaning link with SSL or bail out.
223 dnl - "no", meaning don't link with SSL.
224 dnl - anything else, meaning use that as the SSL root, and bail out
227 if test x"$with_ssl" = x; then
228 dnl Canonicalize unspecified with-ssl setting to "auto". This
229 dnl implements the "auto-detect by default" feature. If you want to
230 dnl change this to "ignore SSL by default", change "auto" to "no".
234 dnl Detection of OpenSSL is much hairier than the detection of other
235 dnl libraries because OpenSSL can be compiled as a third-party
236 dnl library, which means it will not be found without additional
237 dnl linker magic. It would be really nice to rework this check into
238 dnl an AC_DEFUN so that we can reuse it for other third-party
241 if test x"$with_ssl" != x"no"; then
244 if test x"$with_ssl" = x"yes"; then
248 if test x"$with_ssl" = x"yes" || test x"$with_ssl" = x"auto"; then
249 dnl OpenSSL's root was not specified, so we have to guess. First
250 dnl try the system default location, then "/usr/local/ssl" (where
251 dnl OpenSSL installs by default), then "/usr/local" (traditional
252 dnl choice for installation root), then "/opt".
253 ssl_all_roots="system-default /usr/local/ssl /usr/local /opt"
255 dnl Root has been specified by the user.
256 ssl_all_roots=$with_ssl
262 wget_save_LDFLAGS=$LDFLAGS
263 wget_save_CPPFLAGS=$CPPFLAGS
265 dnl Use libtool for OpenSSL tests so we can specify "-R<rpath>"
266 dnl without having to know how the linker handles it.
267 CC="$SHELL ./libtool $CC"
269 dnl Unfortunately, as of this writing (OpenSSL 0.9.6), the libcrypto
270 dnl shared library doesn't record its dependency on libdl, so we
271 dnl need to check for it ourselves so we won't fail to link due to a
272 dnl lack of -ldl. Most OSes use dlopen(), but HP-UX uses
274 AC_CHECK_LIB(dl,dlopen)
275 AC_CHECK_LIB(dl,shl_load)
279 dnl Now try to find SSL libraries in each of the likely SSL roots.
280 for ssl_root in $ssl_all_roots
282 if test x"$ssl_root" = x"system-default"; then
283 dnl Try the default include and library locations.
286 dnl Try this specific root.
287 SSL_INCLUDES=-I$ssl_root/include
288 dnl It's OK to use -R directly because libtool will
289 dnl interpret it for us.
290 LDFLAGS="-L$ssl_root/lib -R$ssl_root/lib $wget_save_LDFLAGS"
293 AC_MSG_RESULT(["Looking for SSL libraries in $ssl_root"])
295 dnl Check whether the compiler can find the include files. On
296 dnl some systems Gcc finds libraries in /usr/local/lib, but fails
297 dnl to find the includes in /usr/local/include.
299 ssl_found_includes=no
300 CPPFLAGS="$SSL_INCLUDES $wget_save_CPPFLAGS"
302 AC_MSG_CHECKING(["for includes"])
304 AC_TRY_CPP([#include <openssl/ssl.h>
305 #include <openssl/rsa.h>
307 AC_MSG_RESULT("found"); ssl_found_includes=yes,
308 AC_MSG_RESULT("not found")
311 if test x"$ssl_found_includes" = xno; then
317 dnl Make sure that the checks don't run afoul of the cache. It
318 dnl would be nicer to temporarily turn off the cache, but
319 dnl apparently Autoconf doesn't allow that.
321 unset ac_cv_lib_crypto_RSA_new
322 unset ac_cv_lib_ssl_SSL_new
324 dnl These checks need to be in this order, or you'll get a link
325 dnl failure if you use a static libcrypto.a and libssl.a rather
326 dnl than shared libraries.
328 AC_CHECK_LIB(crypto, RSA_new, , ssl_link_failure=yes)
329 AC_CHECK_LIB(ssl, SSL_new, , ssl_link_failure=yes)
331 if test x"$ssl_link_failure" = xyes; then
332 dnl One or both libs failed to link.
336 dnl The libraries link. But we still need to check if the program
337 dnl linked with those libraries under these settings with run. On
338 dnl some systems (Solaris), Gcc adds -L/usr/local/lib to the
339 dnl linking line, but fails to add -R/usr/local/lib, thus creating
340 dnl executables that link, but fail to run.
342 dnl If we are cross-compiling, just assume that working linkage
343 dnl implies working executable.
347 AC_MSG_CHECKING("whether SSL libs are resolved at runtime")
353 AC_MSG_RESULT("yes"),
354 AC_MSG_RESULT("no"); ssl_run_failure=yes,
355 AC_MSG_RESULT("cross")
358 if test x"$ssl_run_failure" = xno; then
364 if test x"$ssl_success" = xyes; then
365 dnl AC_MSG_RESULT doesn't look right here, but I'm not sure what
367 AC_MSG_RESULT("Compiling in support for SSL in $ssl_root")
369 AC_SUBST(SSL_INCLUDES)
370 SSL_OBJ='gen_sslfunc$o'
373 LDFLAGS=$wget_save_LDFLAGS
376 dnl If linking with SSL was forced rather than auto-detected, then
377 dnl bail out if SSL failed.
378 if test x"$wget_force_ssl" = x"yes"; then
380 echo "ERROR: Failed to find OpenSSL libraries."
385 dnl Restore the compiler setting.
388 dnl Restore the CPPFLAGS. Do this regardless of whether linking
389 dnl with SSL succeeded -- SSL includes will be handled using
391 CPPFLAGS=$wget_save_CPPFLAGS
395 dnl Find an md5 implementation.
398 if test x"$wget_need_md5" = xyes
404 dnl Check for the system MD5 library on Solaris. We don't check for
405 dnl something simple like "MD5Update" because there are a number of
406 dnl MD5 implementations that use that name. md5_calc is, hopefully,
407 dnl specific to the Solaris MD5 library.
408 if test x"$found_md5" = xno; then
409 AC_CHECK_LIB(md5, md5_calc, [
410 AC_DEFINE(HAVE_SOLARIS_MD5)
416 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
418 if test x"$found_md5" = xno; then
419 if test x"$ssl_success" = xyes; then
420 AC_DEFINE(HAVE_OPENSSL_MD5)
425 dnl If none of the above worked, use the one we ship with Wget.
426 if test x"$found_md5" = xno; then
427 AC_DEFINE(HAVE_BUILTIN_MD5)
429 MD5_OBJ="$MD5_OBJ gnu-md5\$o"
436 dnl Set of available languages.
438 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//')`
440 dnl Originally this used to be static, looking like this:
441 dnl ALL_LINGUAS="cs de hr it ..."
442 dnl The downside was that configure needed to be rebuilt whenever a
443 dnl new language was added.
445 dnl internationalization macros
449 dnl Find makeinfo. If makeinfo is not found, look for Emacs. If
450 dnl Emacs cannot be found, look for XEmacs.
453 AC_CHECK_PROGS(MAKEINFO, makeinfo emacs xemacs)
455 case "${MAKEINFO}" in
456 *makeinfo) MAKEINFO="${MAKEINFO} \$(srcdir)/wget.texi" ;;
457 *emacs | *xemacs) MAKEINFO="${MAKEINFO} -batch -q -no-site-file -eval '(find-file \"\$(srcdir)/wget.texi\")' -l texinfmt -f texinfo-format-buffer -f save-buffer" ;;
458 *) MAKEINFO="makeinfo \$(srcdir)/wget.texi" ;;
462 dnl Find perl and pod2man
465 AC_PATH_PROGS(PERL, perl5 perl, no)
466 AC_PATH_PROG(POD2MAN, pod2man, no)
468 if test "x${POD2MAN}" = xno; then
469 COMMENT_IF_NO_POD2MAN="# "
471 COMMENT_IF_NO_POD2MAN=
473 AC_SUBST(COMMENT_IF_NO_POD2MAN)
478 AC_OUTPUT([Makefile src/Makefile doc/Makefile util/Makefile po/Makefile.in
481 test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h])