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 $PACKAGE_VERSION])
44 AC_CONFIG_MACRO_DIR([m4])
45 AC_CONFIG_AUX_DIR([.])
55 AM_GNU_GETTEXT([external],[need-ngettext])
58 dnl Get cannonical host
61 AC_DEFINE_UNQUOTED([OS_TYPE], "$host_os",
62 [Define to be the name of the operating system.])
69 [[ --without-ssl disable SSL autodetection]])
72 [ --disable-opie disable support for opie or s/key FTP login],
73 ENABLE_OPIE=$enableval, ENABLE_OPIE=yes)
74 test x"${ENABLE_OPIE}" = xyes && AC_DEFINE([ENABLE_OPIE], 1,
75 [Define if you want the Opie support for FTP compiled in.])
78 [ --disable-digest disable support for HTTP digest authorization],
79 ENABLE_DIGEST=$enableval, ENABLE_DIGEST=yes)
80 test x"${ENABLE_DIGEST}" = xyes && AC_DEFINE([ENABLE_DIGEST], 1,
81 [Define if you want the HTTP Digest Authorization compiled in.])
84 [ --disable-ntlm disable support for NTLM authorization],
85 [ENABLE_NTLM=$enableval], [ENABLE_NTLM=auto])
88 [ --disable-debug disable support for debugging output],
89 ENABLE_DEBUG=$enableval, ENABLE_DEBUG=yes)
90 test x"${ENABLE_DEBUG}" = xyes && AC_DEFINE([ENABLE_DEBUG], 1,
91 [Define if you want the debug output support compiled in.])
95 case "${ENABLE_OPIE}${ENABLE_DIGEST}" in
101 dnl Find the compiler
104 dnl We want these before the checks, so the checks can modify their values.
105 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
106 test -z "$CC" && cc_specified=yes
114 dnl Turn on optimization by default. Specifically:
116 dnl if the user hasn't specified CFLAGS, then
117 dnl if compiler is gcc, then
118 dnl use -O2 and some warning flags
120 dnl use os-specific flags or -O
121 if test -n "$auto_cflags"; then
122 if test -n "$GCC"; then
123 CFLAGS="$CFLAGS -O2 -Wall"
126 *hpux*) CFLAGS="$CFLAGS +O3" ;;
127 *ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;;
128 *) CFLAGS="$CFLAGS -O" ;;
134 dnl Checks for basic compiler characteristics.
140 dnl Check for basic headers, even though we expect them to exist and
141 dnl #include them unconditionally in the code. Their detection is
142 dnl still needed because test programs used by Autoconf macros check
143 dnl for STDC_HEADERS, HAVE_SYS_TYPES_H, etc. before using them.
144 dnl Without the checks they will fail to be included in test programs,
145 dnl which will subsequently fail.
148 dnl Check for large file support. This check needs to come fairly
149 dnl early because it could (in principle) affect whether functions and
150 dnl headers are available, whether they work, etc.
152 AC_CHECK_SIZEOF(off_t)
155 dnl Checks for system header files that might be missing.
158 AC_CHECK_HEADERS(unistd.h sys/time.h)
159 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h utime.h sys/utime.h)
160 AC_CHECK_HEADERS(stdint.h inttypes.h pwd.h)
163 dnl Check sizes of integer types. These are used to find n-bit
164 dnl integral types on older systems that fail to provide intN_t and
165 dnl uintN_t typedefs.
167 AC_CHECK_SIZEOF(short)
169 AC_CHECK_SIZEOF(long)
170 AC_CHECK_SIZEOF(long long)
171 AC_CHECK_SIZEOF(void *)
174 dnl Checks for non-universal or system-specific types.
178 AC_CHECK_TYPES([uint32_t, uintptr_t, intptr_t, int64_t])
179 AC_CHECK_TYPES(sig_atomic_t, [], [], [
181 #include <sys/types.h>
183 # include <inttypes.h>
189 dnl Checks for library functions.
194 AC_CHECK_FUNCS(strptime timegm snprintf vsnprintf vasprintf drand48)
195 AC_CHECK_FUNCS(strtoll usleep ftello sigblock sigsetjmp memrchr)
197 if test x"$ENABLE_OPIE" = xyes; then
198 AC_LIBOBJ([ftp-opie])
201 dnl We expect to have these functions on Unix-like systems configure
202 dnl runs on. The defines are provided to get them in config.h.in so
203 dnl Wget can still be ported to non-Unix systems (such as Windows)
204 dnl that lack some of these functions.
205 AC_DEFINE([HAVE_STRCASECMP], 1, [Define to 1 if you have the `strcasecmp' function.])
206 AC_DEFINE([HAVE_STRNCASECMP], 1, [Define to 1 if you have the `strncasecmp' function.])
207 AC_DEFINE([HAVE_STRDUP], 1, [Define to 1 if you have the `strdup' function.])
208 AC_DEFINE([HAVE_ISATTY], 1, [Define to 1 if you have the `isatty' function.])
209 AC_DEFINE([HAVE_SYMLINK], 1, [Define to 1 if you have the `symlink' function.])
212 dnl Call Wget-specific macros defined in aclocal.
222 dnl Check if we need to compile in getopt.c.
224 AC_CHECK_FUNC(getopt_long, [], [
229 dnl Checks for libraries.
232 AS_IF([test x"$with_ssl" = xgnutls], [
233 dnl Now actually check for -lssl
234 AC_LIB_HAVE_LINKFLAGS([gnutls], [], [
235 #include <gnutls/gnutls.h>
236 ], [gnutls_global_init()])
237 if test x"$LIBGNUTLS" != x
239 AC_MSG_NOTICE([compiling in support for SSL via GnuTLS])
242 AC_MSG_ERROR([--with-ssl=gnutls was given, but GNUTLS is not available.])
245 # --with-ssl is not gnutls: check if it's no
246 AS_IF([test x"$with_ssl" != xno], [
247 dnl As of this writing (OpenSSL 0.9.6), the libcrypto shared library
248 dnl doesn't record its dependency on libdl, so we need to make sure
249 dnl -ldl ends up in LIBS on systems that have it. Most OSes use
250 dnl dlopen(), but HP-UX uses shl_load().
251 AC_CHECK_LIB(dl, dlopen, [], [
252 AC_CHECK_LIB(dl, shl_load)
255 dnl Now actually check for -lssl
256 AC_LIB_HAVE_LINKFLAGS([ssl], [crypto], [
257 #include <openssl/ssl.h>
258 #include <openssl/x509.h>
259 #include <openssl/err.h>
260 #include <openssl/rand.h>
261 #include <openssl/des.h>
262 #include <openssl/md4.h>
263 #include <openssl/md5.h>
264 ], [SSL_library_init ()])
265 if test x"$LIBSSL" != x
267 AC_MSG_NOTICE([compiling in support for SSL via OpenSSL])
269 elif test x"$with_ssl" != x
271 AC_MSG_ERROR([--with-ssl was given, but SSL is not available.])
273 ]) # endif: --with-ssl == no?
274 ]) # endif: --with-ssl == gnutls?
277 dnl Enable NTLM if requested and if SSL is available.
278 if test x"$LIBSSL" != x
280 if test x"$ENABLE_NTLM" != xno
282 AC_DEFINE([ENABLE_NTLM], 1,
283 [Define if you want the NTLM authorization support compiled in.])
284 AC_LIBOBJ([http-ntlm])
287 dnl If SSL is unavailable and the user explicitly requested NTLM,
289 if test x"$ENABLE_NTLM" = xyes
291 AC_MSG_ERROR([NTLM authorization requested and OpenSSL not found; aborting])
296 dnl Find an MD5 implementation. Since Wget rarely needs MD5, we try
297 dnl to use an existing library implementation to save on code size.
300 if test x"$wget_need_md5" = xyes
302 dnl This should be moved to an AC_DEFUN, but I'm not sure how to
303 dnl manipulate MD5_OBJ from the defun.
308 dnl Check for the system MD5 library on Solaris. We don't check for
309 dnl something simple like "MD5Update" because there are a number of
310 dnl MD5 implementations that use that name, but have an otherwise
311 dnl incompatible interface. md5_calc is, hopefully, specific to the
312 dnl Solaris MD5 library.
313 if test x"$found_md5" = xno; then
314 AC_CHECK_LIB(md5, md5_calc, [
315 dnl Some installations have bogus <md5.h> in the compiler's
316 dnl include path, making the system md5 library useless.
317 AC_MSG_CHECKING([for working md5.h])
318 AC_COMPILE_IFELSE([#include <md5.h>
321 AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define when using Solaris MD5.])
324 AC_MSG_NOTICE([using the Solaris MD5 implementation])
325 ], [AC_MSG_RESULT(no)])
329 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
331 if test x"$found_md5" = xno; then
332 if test x"$LIBSSL" != x; then
333 AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define when using OpenSSL MD5.])
335 AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
339 dnl If none of the above worked, use the one we ship with Wget.
340 if test x"$found_md5" = xno; then
341 AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define when using built-in MD5.])
344 AC_MSG_NOTICE([using the built-in (GNU) MD5 implementation])
348 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
350 dnl **********************************************************************
352 dnl **********************************************************************
355 dnl We test for IPv6 by checking, in turn, for availability of
356 dnl getaddrinfo, presence of the INET6 address/protocol family, and
357 dnl the existence of struct sockaddr_in6. If any of them is missing,
358 dnl IPv6 is disabled, and the code reverts to old-style gethostbyname.
360 dnl If --enable-ipv6 is explicitly specified on the configure command
361 dnl line, we check for IPv6 and abort if not found. If --disable-ipv6
362 dnl is specified, we disable IPv6 and don't check for it. The default
363 dnl is to autodetect IPv6 and use it where available.
367 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
368 [case "${enable_ipv6}" in
370 AC_MSG_NOTICE([disabling IPv6 at user request])
371 dnl Disable IPv6 checking
375 dnl IPv6 explicitly enabled: force its use (abort if unavailable).
380 dnl Auto-detect IPv6, i.e. check for IPv6, but don't force it.
384 AC_MSG_ERROR([Invalid --enable-ipv6 argument \`$enable_ipv6'])
388 dnl If nothing is specified, assume auto-detection.
393 if test "X$ipv6" = "Xyes"; then
394 AC_CHECK_FUNCS(getaddrinfo, [], [
395 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
400 if test "X$ipv6" = "Xyes"; then
402 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
407 if test "X$ipv6" = "Xyes"; then
408 TYPE_STRUCT_SOCKADDR_IN6([],[
409 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support \`struct sockaddr_in6'])
412 if test "X$ipv6" = "Xyes"; then
413 WGET_STRUCT_SOCKADDR_STORAGE
418 if test "X$ipv6" = "Xyes"; then
419 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
420 AC_MSG_NOTICE([Enabling support for IPv6.])
421 elif test "x$force_ipv6" = "xyes"; then
422 AC_MSG_ERROR([IPv6 support requested but not found; aborting])
427 dnl Set of available languages.
429 dnl Originally this used to be static, looking like this:
430 dnl ALL_LINGUAS="cs de hr it ..."
431 dnl The downside was that configure needed to be rebuilt whenever a
432 dnl new language was added.
434 dnl ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
436 dnl internationalization macros
440 dnl Find makeinfo. We used to provide support for Emacs processing
441 dnl Texinfo using `emacs -batch -eval ...' where makeinfo is
442 dnl unavailable, but that broke with the addition of makeinfo-specific
443 dnl command-line options, such as `-I'. Now we depend on makeinfo to
444 dnl build the Info documentation.
447 AC_CHECK_PROGS(MAKEINFO, [makeinfo], [true])
450 dnl Find perl and pod2man
453 AC_PATH_PROGS(PERL, [perl5 perl], no)
454 AC_PATH_PROG(POD2MAN, pod2man, no)
456 if test "x${POD2MAN}" = xno; then
457 COMMENT_IF_NO_POD2MAN="# "
459 COMMENT_IF_NO_POD2MAN=
461 AC_SUBST(COMMENT_IF_NO_POD2MAN)
466 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile util/Makefile
467 po/Makefile.in tests/Makefile tests/WgetTest.pm
469 AC_CONFIG_HEADERS([src/config.h])
471 #include "config-post.h"
473 AC_CONFIG_COMMANDS([default], [WGET_PROCESS_PO])