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)
66 case "${USE_OPIE}${USE_DIGEST}" in
70 if test x"$USE_OPIE" = xyes; then
77 dnl Whether make sets $(MAKE)...
82 dnl Find a good install
87 dnl Configure our included libtool and make sure it's regenerated when needed
90 AC_SUBST(LIBTOOL_DEPS)
96 dnl We want these before the checks, so the checks can modify their values.
97 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
98 test -z "$CC" && cc_specified=yes
103 dnl if the user hasn't specified CFLAGS, then
104 dnl if compiler is gcc, then use -O2 and some warning flags
105 dnl else use os-specific flags or -O
107 if test -n "$auto_cflags"; then
108 if test -n "$GCC"; then
109 CFLAGS="$CFLAGS -O2 -Wall -Wno-implicit"
112 *hpux*) CFLAGS="$CFLAGS +O3" ;;
113 *ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;;
114 *) CFLAGS="$CFLAGS -O" ;;
125 dnl In case of {cyg,gnu}win32. Should be a _target_ test.
126 dnl Might also be erelevant for DJGPP.
129 *win32) exeext='.exe';;
135 dnl Check if we can handle prototypes.
140 dnl Checks for typedefs, structures, and compiler characteristics.
146 dnl #### This generates a warning. What do I do to shut it up?
149 # Check size of long.
150 AC_CHECK_SIZEOF(long)
151 AC_CHECK_SIZEOF(long long)
154 dnl Checks for headers
156 AC_CHECK_HEADERS(string.h stdarg.h unistd.h sys/time.h utime.h sys/utime.h)
157 AC_CHECK_HEADERS(sys/select.h sys/utsname.h pwd.h signal.h)
161 dnl Return type of signal-handlers
166 dnl Check for struct utimbuf
170 dnl Checks for library functions.
174 AC_CHECK_FUNCS(strdup strstr strcasecmp strncasecmp)
175 AC_CHECK_FUNCS(gettimeofday mktime strptime)
176 AC_CHECK_FUNCS(strerror snprintf vsnprintf select signal symlink access isatty)
177 AC_CHECK_FUNCS(uname gethostname)
179 AC_CHECK_FUNCS(gethostbyname, [], [
180 AC_CHECK_LIB(nsl, gethostbyname)
184 dnl Checks for libraries.
187 AC_CHECK_LIB(socket, socket)
189 dnl #### This appears to be deficient with later versions of SOCKS.
190 if test "x${with_socks}" = xyes
192 AC_CHECK_LIB(resolv, main)
193 AC_CHECK_LIB(socks, Rconnect)
196 dnl If --with-ssl was specified, make sure we can link with the
197 dnl OpenSSL libs. We should probably auto-detect this by default.
199 if test x"$with_ssl" != x -a x"$with_ssl" != x"no"; then
200 if test x"$with_ssl" = x"yes"; then
201 dnl OpenSSL's default install location is "/usr/local/ssl". We also
202 dnl allow /usr/local for regular-style install, and /usr for Linux
204 ssl_all_roots="default /usr/local/ssl /usr/local /opt"
206 dnl Root has been kindly provided by the user.
207 ssl_all_roots=$with_ssl
211 wget_save_LDFLAGS=$LDFLAGS
214 dnl Use libtool for OpenSSL tests to handle the "-R<rpath>" option.
215 CC="$SHELL ./libtool $CC"
217 dnl Unfortunately, as of this writing (OpenSSL 0.9.6), the libcrypto
218 dnl shared library doesn't record its dependency on libdl, so we
219 dnl need to check for it ourselves so we won't fail to link due to a
220 dnl lack of -ldl. Most OSes use dlopen(), but HP-UX uses
222 AC_CHECK_LIB(dl,dlopen)
223 AC_CHECK_LIB(dl,shl_load)
227 dnl Now try to find SSL libraries in each of the likely SSL roots.
228 for ssl_root in $ssl_all_roots
230 if test x"$ssl_root" = xdefault; then
231 dnl Try the default library locations.
234 dnl Try this specific root.
235 SSL_INCLUDES=-I$ssl_root/include
236 dnl It's OK to use -R directly because libtool will
237 dnl interpret it for us.
238 LDFLAGS="-L$ssl_root/lib -R$ssl_root/lib $wget_save_LDFLAGS"
243 AC_MSG_RESULT(["Looking for SSL libraries in $ssl_root"])
245 dnl Make sure that the checks don't run afoul of the cache. It
246 dnl would be nicer to temporarily turn off the cache, but
247 dnl apparently Autoconf doesn't allow that.
249 unset ac_cv_lib_crypto_RSA_new
250 unset ac_cv_lib_ssl_SSL_new
252 dnl These checks need to be in this order, or you'll get a link
253 dnl failure if you use a static libcrypto.a and libssl.a rather
254 dnl than shared libraries.
256 AC_CHECK_LIB(crypto, RSA_new, , ssl_link_failure=yes)
257 AC_CHECK_LIB(ssl, SSL_new, , ssl_link_failure=yes)
259 dnl If ssl_link_failure is still no, the libraries link. But we
260 dnl still need to check if the program linked with those libraries
261 dnl under these settings with run. On some systems (Solaris), Gcc
262 dnl adds -L/usr/local/lib to the linking line, but fails to add
263 dnl -R/usr/local/lib, thus creating executables that link, but
266 dnl If we are cross-compiling, just assume that working linkage
267 dnl implies working executable.
269 if test x"$ssl_link_failure" = xno; then
270 dnl Now try to run the thing.
271 AC_MSG_CHECKING("whether SSL libs are resolved at runtime")
277 AC_MSG_RESULT("yes"),
278 AC_MSG_RESULT("no"); ssl_link_failure=yes,
279 AC_MSG_RESULT("cross"))
282 if test x"$ssl_link_failure" = xno; then
283 dnl This echo doesn't look right, but I'm not sure what to use
285 AC_MSG_RESULT("Compiling in support for SSL in $ssl_root")
287 AC_SUBST(SSL_INCLUDES)
288 SSL_OBJ='gen_sslfunc$o'
295 if test x"$ssl_linked" = xno; then
296 LD_FLAGS=$wget_save_LDFLAGS
299 dnl Perhaps we should abort here. Dan argues that configure
300 dnl scripts shouldn't abort out of principle, but on the other
301 dnl hand remember that the user explicitly requested linking with
304 dnl IMHO there should be a way to specify whether SSL should be
305 dnl avoided, auto-detected, or required, defaulting to
306 dnl `autodetect'. Only in the `require' mode the script would
307 dnl abort if SSL is not found.
309 echo "WARNING: Failed to link with OpenSSL libraries in $ssl_root/lib."
310 echo " Wget will be built without support for https://... URLs."
318 dnl Set of available languages.
320 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//')`
322 dnl Originally this used to be static, looking like this:
323 dnl ALL_LINGUAS="cs de hr it ..."
324 dnl The downside was that configure needed to be rebuilt whenever a
325 dnl new language was added.
327 dnl internationalization macros
331 dnl Find makeinfo. If makeinfo is not found, look for Emacs. If
332 dnl Emacs cannot be found, look for XEmacs.
335 AC_CHECK_PROGS(MAKEINFO, makeinfo emacs xemacs)
337 case "${MAKEINFO}" in
338 *makeinfo) MAKEINFO="${MAKEINFO} \$(srcdir)/wget.texi" ;;
339 *emacs | *xemacs) MAKEINFO="${MAKEINFO} -batch -q -no-site-file -eval '(find-file \"\$(srcdir)/wget.texi\")' -l texinfmt -f texinfo-format-buffer -f save-buffer" ;;
340 *) MAKEINFO="makeinfo \$(srcdir)/wget.texi" ;;
344 dnl Find perl and pod2man
347 AC_PATH_PROGS(PERL, perl5 perl, no)
348 AC_PATH_PROG(POD2MAN, pod2man, no)
350 if test "x${POD2MAN}" = xno; then
351 COMMENT_IF_NO_POD2MAN="# "
353 COMMENT_IF_NO_POD2MAN=
355 AC_SUBST(COMMENT_IF_NO_POD2MAN)
360 AC_OUTPUT([Makefile src/Makefile doc/Makefile util/Makefile po/Makefile.in
363 test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h])