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.
32 [m4_normalize(esyscmd([sed -e 's/^.*"\(.*\)";$/\1/' src/version.c]))],
36 # Make configure depend on the VERSION file, since it's used in AC_INIT
37 AC_SUBST([CONFIGURE_DEPENDENCIES], ['$(top_srcdir)/src/version.c'])
40 dnl What version of Wget are we building?
42 AC_MSG_NOTICE([configuring for GNU Wget $PACKAGE_VERSION])
44 AC_CONFIG_MACRO_DIR([m4])
45 AC_CONFIG_AUX_DIR([.])
55 AM_GNU_GETTEXT([external],[need-ngettext])
56 AM_GNU_GETTEXT_VERSION([0.16.1])
59 dnl Get cannonical host
62 AC_DEFINE_UNQUOTED([OS_TYPE], "$host_os",
63 [Define to be the name of the operating system.])
70 [[ --without-ssl disable SSL autodetection]])
73 [ --disable-opie disable support for opie or s/key FTP login],
74 ENABLE_OPIE=$enableval, ENABLE_OPIE=yes)
75 test x"${ENABLE_OPIE}" = xyes && AC_DEFINE([ENABLE_OPIE], 1,
76 [Define if you want the Opie support for FTP compiled in.])
79 [ --disable-digest disable support for HTTP digest authorization],
80 ENABLE_DIGEST=$enableval, ENABLE_DIGEST=yes)
81 test x"${ENABLE_DIGEST}" = xyes && AC_DEFINE([ENABLE_DIGEST], 1,
82 [Define if you want the HTTP Digest Authorization compiled in.])
85 [ --disable-ntlm disable support for NTLM authorization],
86 [ENABLE_NTLM=$enableval], [ENABLE_NTLM=auto])
89 [ --disable-debug disable support for debugging output],
90 ENABLE_DEBUG=$enableval, ENABLE_DEBUG=yes)
91 test x"${ENABLE_DEBUG}" = xyes && AC_DEFINE([ENABLE_DEBUG], 1,
92 [Define if you want the debug output support compiled in.])
96 case "${ENABLE_OPIE}${ENABLE_DIGEST}" in
102 dnl Find the compiler
105 dnl We want these before the checks, so the checks can modify their values.
106 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
107 test -z "$CC" && cc_specified=yes
115 dnl Turn on optimization by default. Specifically:
117 dnl if the user hasn't specified CFLAGS, then
118 dnl if compiler is gcc, then
119 dnl use -O2 and some warning flags
121 dnl use os-specific flags or -O
122 if test -n "$auto_cflags"; then
123 if test -n "$GCC"; then
124 CFLAGS="$CFLAGS -O2 -Wall"
127 *hpux*) CFLAGS="$CFLAGS +O3" ;;
128 *ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;;
129 *) CFLAGS="$CFLAGS -O" ;;
135 dnl Checks for basic compiler characteristics.
141 dnl Check for basic headers, even though we expect them to exist and
142 dnl #include them unconditionally in the code. Their detection is
143 dnl still needed because test programs used by Autoconf macros check
144 dnl for STDC_HEADERS, HAVE_SYS_TYPES_H, etc. before using them.
145 dnl Without the checks they will fail to be included in test programs,
146 dnl which will subsequently fail.
149 dnl Check for large file support. This check needs to come fairly
150 dnl early because it could (in principle) affect whether functions and
151 dnl headers are available, whether they work, etc.
153 AC_CHECK_SIZEOF(off_t)
156 dnl Checks for system header files that might be missing.
159 AC_CHECK_HEADERS(unistd.h sys/time.h)
160 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h utime.h sys/utime.h)
161 AC_CHECK_HEADERS(stdint.h inttypes.h pwd.h)
164 dnl Check sizes of integer types. These are used to find n-bit
165 dnl integral types on older systems that fail to provide intN_t and
166 dnl uintN_t typedefs.
168 AC_CHECK_SIZEOF(short)
170 AC_CHECK_SIZEOF(long)
171 AC_CHECK_SIZEOF(long long)
172 AC_CHECK_SIZEOF(void *)
175 dnl Checks for non-universal or system-specific types.
179 AC_CHECK_TYPES([uint32_t, uintptr_t, intptr_t, int64_t])
180 AC_CHECK_TYPES(sig_atomic_t, [], [], [
182 #include <sys/types.h>
184 # include <inttypes.h>
190 dnl Checks for library functions.
195 AC_CHECK_FUNCS(strptime timegm snprintf vsnprintf vasprintf drand48)
196 AC_CHECK_FUNCS(strtoll usleep ftello sigblock sigsetjmp memrchr)
198 if test x"$ENABLE_OPIE" = xyes; then
199 AC_LIBOBJ([ftp-opie])
202 dnl We expect to have these functions on Unix-like systems configure
203 dnl runs on. The defines are provided to get them in config.h.in so
204 dnl Wget can still be ported to non-Unix systems (such as Windows)
205 dnl that lack some of these functions.
206 AC_DEFINE([HAVE_STRCASECMP], 1, [Define to 1 if you have the `strcasecmp' function.])
207 AC_DEFINE([HAVE_STRNCASECMP], 1, [Define to 1 if you have the `strncasecmp' function.])
208 AC_DEFINE([HAVE_STRDUP], 1, [Define to 1 if you have the `strdup' function.])
209 AC_DEFINE([HAVE_ISATTY], 1, [Define to 1 if you have the `isatty' function.])
210 AC_DEFINE([HAVE_SYMLINK], 1, [Define to 1 if you have the `symlink' function.])
213 dnl Call Wget-specific macros defined in aclocal.
223 dnl Check if we need to compile in getopt.c.
225 AC_CHECK_FUNC(getopt_long, [], [
230 dnl Checks for libraries.
233 AS_IF([test x"$with_ssl" = xgnutls], [
234 dnl Now actually check for -lssl
235 AC_LIB_HAVE_LINKFLAGS([gnutls], [], [
236 #include <gnutls/gnutls.h>
237 ], [gnutls_global_init()])
238 if test x"$LIBGNUTLS" != x
240 AC_MSG_NOTICE([compiling in support for SSL via GnuTLS])
243 AC_MSG_ERROR([--with-ssl=gnutls was given, but GNUTLS is not available.])
246 # --with-ssl is not gnutls: check if it's no
247 AS_IF([test x"$with_ssl" != xno], [
248 dnl As of this writing (OpenSSL 0.9.6), the libcrypto shared library
249 dnl doesn't record its dependency on libdl, so we need to make sure
250 dnl -ldl ends up in LIBS on systems that have it. Most OSes use
251 dnl dlopen(), but HP-UX uses shl_load().
252 AC_CHECK_LIB(dl, dlopen, [], [
253 AC_CHECK_LIB(dl, shl_load)
256 dnl Now actually check for -lssl
257 AC_LIB_HAVE_LINKFLAGS([ssl], [crypto], [
258 #include <openssl/ssl.h>
259 #include <openssl/x509.h>
260 #include <openssl/err.h>
261 #include <openssl/rand.h>
262 #include <openssl/des.h>
263 #include <openssl/md4.h>
264 #include <openssl/md5.h>
265 ], [SSL_library_init ()])
266 if test x"$LIBSSL" != x
268 AC_MSG_NOTICE([compiling in support for SSL via OpenSSL])
270 elif test x"$with_ssl" != x
272 AC_MSG_ERROR([--with-ssl was given, but SSL is not available.])
274 ]) # endif: --with-ssl == no?
275 ]) # endif: --with-ssl == gnutls?
278 dnl Enable NTLM if requested and if SSL is available.
279 if test x"$LIBSSL" != x
281 if test x"$ENABLE_NTLM" != xno
283 AC_DEFINE([ENABLE_NTLM], 1,
284 [Define if you want the NTLM authorization support compiled in.])
285 AC_LIBOBJ([http-ntlm])
288 dnl If SSL is unavailable and the user explicitly requested NTLM,
290 if test x"$ENABLE_NTLM" = xyes
292 AC_MSG_ERROR([NTLM authorization requested and OpenSSL not found; aborting])
297 dnl Find an MD5 implementation. Since Wget rarely needs MD5, we try
298 dnl to use an existing library implementation to save on code size.
301 if test x"$wget_need_md5" = xyes
303 dnl This should be moved to an AC_DEFUN, but I'm not sure how to
304 dnl manipulate MD5_OBJ from the defun.
309 dnl Check for the system MD5 library on Solaris. We don't check for
310 dnl something simple like "MD5Update" because there are a number of
311 dnl MD5 implementations that use that name, but have an otherwise
312 dnl incompatible interface. md5_calc is, hopefully, specific to the
313 dnl Solaris MD5 library.
314 if test x"$found_md5" = xno; then
315 AC_CHECK_LIB(md5, md5_calc, [
316 dnl Some installations have bogus <md5.h> in the compiler's
317 dnl include path, making the system md5 library useless.
318 AC_MSG_CHECKING([for working md5.h])
319 AC_COMPILE_IFELSE([#include <md5.h>
322 AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define when using Solaris MD5.])
325 AC_MSG_NOTICE([using the Solaris MD5 implementation])
326 ], [AC_MSG_RESULT(no)])
330 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
332 if test x"$found_md5" = xno; then
333 if test x"$LIBSSL" != x; then
334 AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define when using OpenSSL MD5.])
336 AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
340 dnl If none of the above worked, use the one we ship with Wget.
341 if test x"$found_md5" = xno; then
342 AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define when using built-in MD5.])
345 AC_MSG_NOTICE([using the built-in (GNU) MD5 implementation])
349 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
351 dnl **********************************************************************
353 dnl **********************************************************************
356 dnl We test for IPv6 by checking, in turn, for availability of
357 dnl getaddrinfo, presence of the INET6 address/protocol family, and
358 dnl the existence of struct sockaddr_in6. If any of them is missing,
359 dnl IPv6 is disabled, and the code reverts to old-style gethostbyname.
361 dnl If --enable-ipv6 is explicitly specified on the configure command
362 dnl line, we check for IPv6 and abort if not found. If --disable-ipv6
363 dnl is specified, we disable IPv6 and don't check for it. The default
364 dnl is to autodetect IPv6 and use it where available.
368 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
369 [case "${enable_ipv6}" in
371 AC_MSG_NOTICE([disabling IPv6 at user request])
372 dnl Disable IPv6 checking
376 dnl IPv6 explicitly enabled: force its use (abort if unavailable).
381 dnl Auto-detect IPv6, i.e. check for IPv6, but don't force it.
385 AC_MSG_ERROR([Invalid --enable-ipv6 argument \`$enable_ipv6'])
389 dnl If nothing is specified, assume auto-detection.
394 if test "X$ipv6" = "Xyes"; then
395 AC_CHECK_FUNCS(getaddrinfo, [], [
396 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
401 if test "X$ipv6" = "Xyes"; then
403 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
408 if test "X$ipv6" = "Xyes"; then
409 TYPE_STRUCT_SOCKADDR_IN6([],[
410 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support \`struct sockaddr_in6'])
413 if test "X$ipv6" = "Xyes"; then
414 WGET_STRUCT_SOCKADDR_STORAGE
419 if test "X$ipv6" = "Xyes"; then
420 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
421 AC_MSG_NOTICE([Enabling support for IPv6.])
422 elif test "x$force_ipv6" = "xyes"; then
423 AC_MSG_ERROR([IPv6 support requested but not found; aborting])
428 dnl Set of available languages.
430 dnl Originally this used to be static, looking like this:
431 dnl ALL_LINGUAS="cs de hr it ..."
432 dnl The downside was that configure needed to be rebuilt whenever a
433 dnl new language was added.
435 dnl ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
437 dnl internationalization macros
441 dnl Find makeinfo. We used to provide support for Emacs processing
442 dnl Texinfo using `emacs -batch -eval ...' where makeinfo is
443 dnl unavailable, but that broke with the addition of makeinfo-specific
444 dnl command-line options, such as `-I'. Now we depend on makeinfo to
445 dnl build the Info documentation.
448 AC_CHECK_PROGS(MAKEINFO, [makeinfo], [true])
451 dnl Find perl and pod2man
454 AC_PATH_PROGS(PERL, [perl5 perl], no)
455 AC_PATH_PROG(POD2MAN, pod2man, no)
457 if test "x${POD2MAN}" = xno; then
458 COMMENT_IF_NO_POD2MAN="# "
460 COMMENT_IF_NO_POD2MAN=
462 AC_SUBST(COMMENT_IF_NO_POD2MAN)
467 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile util/Makefile
468 po/Makefile.in tests/Makefile tests/WgetTest.pm
470 AC_CONFIG_HEADERS([src/config.h])
472 #include "config-post.h"
474 AC_CONFIG_COMMANDS([default], [WGET_PROCESS_PO])