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 libssl [in SSL_ROOT/lib] for https: support])
52 [ --disable-opie disable support for opie or s/key FTP login],
53 USE_OPIE=$enableval, USE_OPIE=yes)
54 test x"${USE_OPIE}" = xyes && AC_DEFINE(USE_OPIE)
57 [ --disable-digest disable support for HTTP digest authorization],
58 USE_DIGEST=$enableval, USE_DIGEST=yes)
59 test x"${USE_DIGEST}" = xyes && AC_DEFINE(USE_DIGEST)
62 [ --disable-debug disable support for debugging output],
63 DEBUG=$enableval, DEBUG=yes)
64 test x"${DEBUG}" = xyes && AC_DEFINE(DEBUG)
68 case "${USE_OPIE}${USE_DIGEST}" in
72 if test x"$USE_OPIE" = xyes; then
78 dnl Whether make sets $(MAKE)...
83 dnl Find a good install
91 dnl We want these before the checks, so the checks can modify their values.
92 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
93 test -z "$CC" && cc_specified=yes
98 dnl if the user hasn't specified CFLAGS, then
99 dnl if compiler is gcc, then use -O2 and some warning flags
100 dnl else use os-specific flags or -O
102 if test -n "$auto_cflags"; then
103 if test -n "$GCC"; then
104 CFLAGS="$CFLAGS -O2 -Wall -Wno-implicit"
107 *hpux*) CFLAGS="$CFLAGS +O3" ;;
108 *ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;;
109 *) CFLAGS="$CFLAGS -O" ;;
120 dnl Configure our included libtool and make sure it's regenerated when needed
123 AC_SUBST(LIBTOOL_DEPS)
126 dnl In case of {cyg,gnu}win32. Should be a _target_ test.
127 dnl Might also be erelevant for DJGPP.
130 *win32) exeext='.exe';;
136 dnl Check if we can handle prototypes.
141 dnl Checks for typedefs, structures, and compiler characteristics.
147 dnl #### This generates a warning. What do I do to shut it up?
150 # Check size of long.
151 AC_CHECK_SIZEOF(long)
152 AC_CHECK_SIZEOF(long long)
155 dnl Checks for headers
157 AC_CHECK_HEADERS(string.h stdarg.h unistd.h sys/time.h utime.h sys/utime.h)
158 AC_CHECK_HEADERS(sys/select.h sys/utsname.h pwd.h signal.h)
162 dnl Return type of signal-handlers
167 dnl Check for struct utimbuf
171 dnl Checks for library functions.
175 AC_CHECK_FUNCS(strdup strstr strcasecmp strncasecmp strpbrk)
176 AC_CHECK_FUNCS(gettimeofday mktime strptime)
177 AC_CHECK_FUNCS(strerror snprintf vsnprintf select signal symlink access isatty)
178 AC_CHECK_FUNCS(uname gethostname)
181 dnl Check if we need to compile in getopt.c.
183 AC_CHECK_FUNC(getopt_long, [], [
184 GETOPT_OBJ='getopt$o'
189 dnl Checks for libraries.
193 dnl Use the md5 lib if available (Solaris).
196 if test x$wget_need_md5 = xyes
199 AC_CHECK_LIB(md5, MD5Update, [
200 AC_DEFINE(HAVE_SOLARIS_MD5)
204 AC_DEFINE(HAVE_BUILTIN_MD5)
209 dnl On Solaris, -lnsl is needed to use gethostbyname. On "NCR MP-RAS
210 dnl 3.0", however, gethostbyname is in libc, but -lnsl is still needed
211 dnl to use -lsocket, as well as for functions such as inet_ntoa. We
212 dnl look for such known offenders and if one of them is not found, we
213 dnl check if -lnsl is needed.
215 wget_check_in_nsl=NONE
216 AC_CHECK_FUNCS(gethostbyname, [], [
217 wget_check_in_nsl=gethostbyname
219 AC_CHECK_FUNCS(inet_ntoa, [], [
220 wget_check_in_nsl=inet_ntoa
222 if test $wget_check_in_nsl != NONE; then
223 AC_CHECK_LIB(nsl, $wget_check_in_nsl)
226 AC_CHECK_LIB(socket, socket)
228 dnl #### This appears to be deficient with later versions of SOCKS.
229 if test "x${with_socks}" = xyes
231 AC_CHECK_LIB(resolv, main)
232 AC_CHECK_LIB(socks, Rconnect)
235 dnl If --with-ssl was specified, make sure we can link with the
236 dnl OpenSSL libs. We should probably auto-detect this by default.
238 if test x"$with_ssl" != x -a x"$with_ssl" != x"no"; then
239 if test x"$with_ssl" = x"yes"; then
240 dnl OpenSSL's default install location is "/usr/local/ssl". We also
241 dnl allow /usr/local for regular-style install, and /usr for Linux
243 ssl_all_roots="default /usr/local/ssl /usr/local /opt"
245 dnl Root has been kindly provided by the user.
246 ssl_all_roots=$with_ssl
250 wget_save_LDFLAGS=$LDFLAGS
253 dnl Use libtool for OpenSSL tests to handle the "-R<rpath>" option.
254 CC="$SHELL ./libtool $CC"
256 dnl Unfortunately, as of this writing (OpenSSL 0.9.6), the libcrypto
257 dnl shared library doesn't record its dependency on libdl, so we
258 dnl need to check for it ourselves so we won't fail to link due to a
259 dnl lack of -ldl. Most OSes use dlopen(), but HP-UX uses
261 AC_CHECK_LIB(dl,dlopen)
262 AC_CHECK_LIB(dl,shl_load)
266 dnl Now try to find SSL libraries in each of the likely SSL roots.
267 for ssl_root in $ssl_all_roots
269 if test x"$ssl_root" = xdefault; then
270 dnl Try the default library locations.
273 dnl Try this specific root.
274 SSL_INCLUDES=-I$ssl_root/include
275 dnl It's OK to use -R directly because libtool will
276 dnl interpret it for us.
277 LDFLAGS="-L$ssl_root/lib -R$ssl_root/lib $wget_save_LDFLAGS"
282 AC_MSG_RESULT(["Looking for SSL libraries in $ssl_root"])
284 dnl Make sure that the checks don't run afoul of the cache. It
285 dnl would be nicer to temporarily turn off the cache, but
286 dnl apparently Autoconf doesn't allow that.
288 unset ac_cv_lib_crypto_RSA_new
289 unset ac_cv_lib_ssl_SSL_new
291 dnl These checks need to be in this order, or you'll get a link
292 dnl failure if you use a static libcrypto.a and libssl.a rather
293 dnl than shared libraries.
295 AC_CHECK_LIB(crypto, RSA_new, , ssl_link_failure=yes)
296 AC_CHECK_LIB(ssl, SSL_new, , ssl_link_failure=yes)
298 dnl If ssl_link_failure is still no, the libraries link. But we
299 dnl still need to check if the program linked with those libraries
300 dnl under these settings with run. On some systems (Solaris), Gcc
301 dnl adds -L/usr/local/lib to the linking line, but fails to add
302 dnl -R/usr/local/lib, thus creating executables that link, but
305 dnl If we are cross-compiling, just assume that working linkage
306 dnl implies working executable.
308 if test x"$ssl_link_failure" = xno; then
309 dnl Now try to run the thing.
310 AC_MSG_CHECKING("whether SSL libs are resolved at runtime")
316 AC_MSG_RESULT("yes"),
317 AC_MSG_RESULT("no"); ssl_link_failure=yes,
318 AC_MSG_RESULT("cross"))
321 if test x"$ssl_link_failure" = xno; then
322 dnl This echo doesn't look right, but I'm not sure what to use
324 AC_MSG_RESULT("Compiling in support for SSL in $ssl_root")
326 AC_SUBST(SSL_INCLUDES)
327 SSL_OBJ='gen_sslfunc$o'
334 if test x"$ssl_linked" = xno; then
335 LD_FLAGS=$wget_save_LDFLAGS
338 dnl Perhaps we should abort here. Dan argues that configure
339 dnl scripts shouldn't abort out of principle, but on the other
340 dnl hand remember that the user explicitly requested linking with
343 dnl IMHO there should be a way to specify whether SSL should be
344 dnl avoided, auto-detected, or required, defaulting to
345 dnl `autodetect'. Only in the `require' mode the script would
346 dnl abort if SSL is not found.
348 echo "WARNING: Failed to link with OpenSSL libraries in $ssl_root/lib."
349 echo " Wget will be built without support for https://... URLs."
357 dnl Set of available languages.
359 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//')`
361 dnl Originally this used to be static, looking like this:
362 dnl ALL_LINGUAS="cs de hr it ..."
363 dnl The downside was that configure needed to be rebuilt whenever a
364 dnl new language was added.
366 dnl internationalization macros
370 dnl Find makeinfo. If makeinfo is not found, look for Emacs. If
371 dnl Emacs cannot be found, look for XEmacs.
374 AC_CHECK_PROGS(MAKEINFO, makeinfo emacs xemacs)
376 case "${MAKEINFO}" in
377 *makeinfo) MAKEINFO="${MAKEINFO} \$(srcdir)/wget.texi" ;;
378 *emacs | *xemacs) MAKEINFO="${MAKEINFO} -batch -q -no-site-file -eval '(find-file \"\$(srcdir)/wget.texi\")' -l texinfmt -f texinfo-format-buffer -f save-buffer" ;;
379 *) MAKEINFO="makeinfo \$(srcdir)/wget.texi" ;;
383 dnl Find perl and pod2man
386 AC_PATH_PROGS(PERL, perl5 perl, no)
387 AC_PATH_PROG(POD2MAN, pod2man, no)
389 if test "x${POD2MAN}" = xno; then
390 COMMENT_IF_NO_POD2MAN="# "
392 COMMENT_IF_NO_POD2MAN=
394 AC_SUBST(COMMENT_IF_NO_POD2MAN)
399 AC_OUTPUT([Makefile src/Makefile doc/Makefile util/Makefile po/Makefile.in
402 test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h])