1 dnl Template file for GNU Autoconf
2 dnl Copyright (C) 1995, 1996, 1997, 2001, 2007 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 3 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, see <http://www.gnu.org/licenses/>.
17 dnl In addition, as a special exception, the Free Software Foundation
18 dnl gives permission to link the code of its release of Wget with the
19 dnl OpenSSL project's "OpenSSL" library (or with modified versions of it
20 dnl that use the same license as the "OpenSSL" library), and distribute
21 dnl the linked executables. You must obey the GNU General Public License
22 dnl in all respects for all of the code used other than "OpenSSL". If you
23 dnl modify this file, you may extend this exception to your version of the
24 dnl file, but you are not obligated to do so. If you do not wish to do
25 dnl so, delete this exception statement from your version.
28 dnl Process this file with autoconf to produce a configure script.
37 dnl What version of Wget are we building?
39 AC_MSG_NOTICE([configuring for GNU Wget $PACKAGE_VERSION])
41 AC_CONFIG_MACRO_DIR([m4])
42 AC_CONFIG_AUX_DIR([.])
52 AM_GNU_GETTEXT([external],[need-ngettext])
53 AM_GNU_GETTEXT_VERSION([0.16.1])
56 dnl Get cannonical host
59 AC_DEFINE_UNQUOTED([OS_TYPE], "$host_os",
60 [Define to be the name of the operating system.])
67 [[ --without-ssl disable SSL autodetection]])
70 [ --disable-opie disable support for opie or s/key FTP login],
71 ENABLE_OPIE=$enableval, ENABLE_OPIE=yes)
72 test x"${ENABLE_OPIE}" = xyes && AC_DEFINE([ENABLE_OPIE], 1,
73 [Define if you want the Opie support for FTP compiled in.])
76 [ --disable-digest disable support for HTTP digest authorization],
77 ENABLE_DIGEST=$enableval, ENABLE_DIGEST=yes)
78 test x"${ENABLE_DIGEST}" = xyes && AC_DEFINE([ENABLE_DIGEST], 1,
79 [Define if you want the HTTP Digest Authorization compiled in.])
82 [ --disable-ntlm disable support for NTLM authorization],
83 [ENABLE_NTLM=$enableval], [ENABLE_NTLM=auto])
86 [ --disable-debug disable support for debugging output],
87 ENABLE_DEBUG=$enableval, ENABLE_DEBUG=yes)
88 test x"${ENABLE_DEBUG}" = xyes && AC_DEFINE([ENABLE_DEBUG], 1,
89 [Define if you want the debug output support compiled in.])
93 case "${ENABLE_OPIE}${ENABLE_DIGEST}" in
102 dnl We want these before the checks, so the checks can modify their values.
103 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
104 test -z "$CC" && cc_specified=yes
113 dnl Turn on optimization by default. Specifically:
115 dnl if the user hasn't specified CFLAGS, then
116 dnl if compiler is gcc, then
117 dnl use -O2 and some warning flags
119 dnl use os-specific flags or -O
120 if test -n "$auto_cflags"; then
121 if test -n "$GCC"; then
122 CFLAGS="$CFLAGS -O2 -Wall"
125 *hpux*) CFLAGS="$CFLAGS +O3" ;;
126 *ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;;
127 *) CFLAGS="$CFLAGS -O" ;;
133 dnl Checks for basic compiler characteristics.
139 dnl Check for basic headers, even though we expect them to exist and
140 dnl #include them unconditionally in the code. Their detection is
141 dnl still needed because test programs used by Autoconf macros check
142 dnl for STDC_HEADERS, HAVE_SYS_TYPES_H, etc. before using them.
143 dnl Without the checks they will fail to be included in test programs,
144 dnl which will subsequently fail.
147 dnl Check for large file support. This check needs to come fairly
148 dnl early because it could (in principle) affect whether functions and
149 dnl headers are available, whether they work, etc.
151 AC_CHECK_SIZEOF(off_t)
154 dnl Checks for system header files that might be missing.
157 AC_CHECK_HEADERS(unistd.h sys/time.h)
158 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h utime.h sys/utime.h)
159 AC_CHECK_HEADERS(stdint.h inttypes.h pwd.h)
162 dnl Check sizes of integer types. These are used to find n-bit
163 dnl integral types on older systems that fail to provide intN_t and
164 dnl uintN_t typedefs.
166 AC_CHECK_SIZEOF(short)
168 AC_CHECK_SIZEOF(long)
169 AC_CHECK_SIZEOF(long long)
170 AC_CHECK_SIZEOF(void *)
173 dnl Checks for non-universal or system-specific types.
177 AC_CHECK_TYPES([uint32_t, uintptr_t, intptr_t, int64_t])
178 AC_CHECK_TYPES(sig_atomic_t, [], [], [
180 #include <sys/types.h>
182 # include <inttypes.h>
191 dnl Checks for library functions.
196 AC_CHECK_FUNCS(strptime timegm snprintf vsnprintf vasprintf drand48)
197 AC_CHECK_FUNCS(strtoll usleep ftello sigblock sigsetjmp memrchr)
199 if test x"$ENABLE_OPIE" = xyes; then
200 AC_LIBOBJ([ftp-opie])
203 dnl We expect to have these functions on Unix-like systems configure
204 dnl runs on. The defines are provided to get them in config.h.in so
205 dnl Wget can still be ported to non-Unix systems (such as Windows)
206 dnl that lack some of these functions.
207 AC_DEFINE([HAVE_STRCASECMP], 1, [Define to 1 if you have the `strcasecmp' function.])
208 AC_DEFINE([HAVE_STRNCASECMP], 1, [Define to 1 if you have the `strncasecmp' function.])
209 AC_DEFINE([HAVE_STRDUP], 1, [Define to 1 if you have the `strdup' function.])
210 AC_DEFINE([HAVE_ISATTY], 1, [Define to 1 if you have the `isatty' function.])
211 AC_DEFINE([HAVE_SYMLINK], 1, [Define to 1 if you have the `symlink' function.])
214 dnl Call Wget-specific macros defined in aclocal.
224 dnl Check if we need to compile in getopt.c.
226 AC_CHECK_FUNC(getopt_long, [], [
231 dnl Checks for libraries.
234 AS_IF([test x"$with_ssl" = xgnutls], [
235 dnl Now actually check for -lssl
236 AC_LIB_HAVE_LINKFLAGS([gnutls], [], [
237 #include <gnutls/gnutls.h>
238 ], [gnutls_global_init()])
239 if test x"$LIBGNUTLS" != x
241 AC_MSG_NOTICE([compiling in support for SSL via GnuTLS])
244 AC_MSG_ERROR([--with-ssl=gnutls was given, but GNUTLS is not available.])
247 # --with-ssl is not gnutls: check if it's no
248 AS_IF([test x"$with_ssl" != xno], [
249 dnl As of this writing (OpenSSL 0.9.6), the libcrypto shared library
250 dnl doesn't record its dependency on libdl, so we need to make sure
251 dnl -ldl ends up in LIBS on systems that have it. Most OSes use
252 dnl dlopen(), but HP-UX uses shl_load().
253 AC_CHECK_LIB(dl, dlopen, [], [
254 AC_CHECK_LIB(dl, shl_load)
257 dnl Now actually check for -lssl
258 AC_LIB_HAVE_LINKFLAGS([ssl], [crypto], [
259 #include <openssl/ssl.h>
260 #include <openssl/x509.h>
261 #include <openssl/err.h>
262 #include <openssl/rand.h>
263 #include <openssl/des.h>
264 #include <openssl/md4.h>
265 #include <openssl/md5.h>
266 ], [SSL_library_init ()])
267 if test x"$LIBSSL" != x
269 AC_MSG_NOTICE([compiling in support for SSL via OpenSSL])
271 elif test x"$with_ssl" != x
273 AC_MSG_ERROR([--with-ssl was given, but SSL is not available.])
275 ]) # endif: --with-ssl == no?
276 ]) # endif: --with-ssl == gnutls?
279 dnl Enable NTLM if requested and if SSL is available.
280 if test x"$LIBSSL" != x
282 if test x"$ENABLE_NTLM" != xno
284 AC_DEFINE([ENABLE_NTLM], 1,
285 [Define if you want the NTLM authorization support compiled in.])
286 AC_LIBOBJ([http-ntlm])
289 dnl If SSL is unavailable and the user explicitly requested NTLM,
291 if test x"$ENABLE_NTLM" = xyes
293 AC_MSG_ERROR([NTLM authorization requested and OpenSSL not found; aborting])
298 dnl Find an MD5 implementation. Since Wget rarely needs MD5, we try
299 dnl to use an existing library implementation to save on code size.
302 if test x"$wget_need_md5" = xyes
304 dnl This should be moved to an AC_DEFUN, but I'm not sure how to
305 dnl manipulate MD5_OBJ from the defun.
310 dnl Check for the system MD5 library on Solaris. We don't check for
311 dnl something simple like "MD5Update" because there are a number of
312 dnl MD5 implementations that use that name, but have an otherwise
313 dnl incompatible interface. md5_calc is, hopefully, specific to the
314 dnl Solaris MD5 library.
315 if test x"$found_md5" = xno; then
316 AC_CHECK_LIB(md5, md5_calc, [
317 dnl Some installations have bogus <md5.h> in the compiler's
318 dnl include path, making the system md5 library useless.
319 AC_MSG_CHECKING([for working md5.h])
320 AC_COMPILE_IFELSE([#include <md5.h>
323 AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define when using Solaris MD5.])
326 AC_MSG_NOTICE([using the Solaris MD5 implementation])
327 ], [AC_MSG_RESULT(no)])
331 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
333 if test x"$found_md5" = xno; then
334 if test x"$LIBSSL" != x; then
335 AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define when using OpenSSL MD5.])
337 AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
341 dnl If none of the above worked, use the one we ship with Wget.
342 if test x"$found_md5" = xno; then
343 AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define when using built-in MD5.])
346 AC_MSG_NOTICE([using the built-in (GNU) MD5 implementation])
350 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
352 dnl **********************************************************************
354 dnl **********************************************************************
357 dnl We test for IPv6 by checking, in turn, for availability of
358 dnl getaddrinfo, presence of the INET6 address/protocol family, and
359 dnl the existence of struct sockaddr_in6. If any of them is missing,
360 dnl IPv6 is disabled, and the code reverts to old-style gethostbyname.
362 dnl If --enable-ipv6 is explicitly specified on the configure command
363 dnl line, we check for IPv6 and abort if not found. If --disable-ipv6
364 dnl is specified, we disable IPv6 and don't check for it. The default
365 dnl is to autodetect IPv6 and use it where available.
369 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
370 [case "${enable_ipv6}" in
372 AC_MSG_NOTICE([disabling IPv6 at user request])
373 dnl Disable IPv6 checking
377 dnl IPv6 explicitly enabled: force its use (abort if unavailable).
382 dnl Auto-detect IPv6, i.e. check for IPv6, but don't force it.
386 AC_MSG_ERROR([Invalid --enable-ipv6 argument \`$enable_ipv6'])
390 dnl If nothing is specified, assume auto-detection.
395 if test "X$ipv6" = "Xyes"; then
396 AC_CHECK_FUNCS(getaddrinfo, [], [
397 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
402 if test "X$ipv6" = "Xyes"; then
404 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
409 if test "X$ipv6" = "Xyes"; then
410 TYPE_STRUCT_SOCKADDR_IN6([],[
411 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support \`struct sockaddr_in6'])
414 if test "X$ipv6" = "Xyes"; then
415 WGET_STRUCT_SOCKADDR_STORAGE
420 if test "X$ipv6" = "Xyes"; then
421 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
422 AC_MSG_NOTICE([Enabling support for IPv6.])
423 elif test "x$force_ipv6" = "xyes"; then
424 AC_MSG_ERROR([IPv6 support requested but not found; aborting])
429 dnl Set of available languages.
431 dnl Originally this used to be static, looking like this:
432 dnl ALL_LINGUAS="cs de hr it ..."
433 dnl The downside was that configure needed to be rebuilt whenever a
434 dnl new language was added.
436 ALL_LINGUAS="en@quot en@boldquot $(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')"
439 dnl Find makeinfo. We used to provide support for Emacs processing
440 dnl Texinfo using `emacs -batch -eval ...' where makeinfo is
441 dnl unavailable, but that broke with the addition of makeinfo-specific
442 dnl command-line options, such as `-I'. Now we depend on makeinfo to
443 dnl build the Info documentation.
446 AC_CHECK_PROGS(MAKEINFO, [makeinfo], [true])
449 dnl Find perl and pod2man
452 AC_PATH_PROGS(PERL, [perl5 perl], no)
453 AC_PATH_PROG(POD2MAN, pod2man, no)
455 if test "x${POD2MAN}" = xno; then
456 COMMENT_IF_NO_POD2MAN="# "
458 COMMENT_IF_NO_POD2MAN=
460 AC_SUBST(COMMENT_IF_NO_POD2MAN)
465 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile util/Makefile
466 po/Makefile.in tests/Makefile tests/WgetTest.pm
467 lib/Makefile windows/Makefile])
468 AC_CONFIG_HEADERS([src/config.h])
470 #include "config-post.h"