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 $PACKAGE_VERSION])
44 AC_CONFIG_MACRO_DIR([m4])
45 AC_CONFIG_AUX_DIR([.])
53 dnl Get cannonical host
56 AC_DEFINE_UNQUOTED([OS_TYPE], "$host_os",
57 [Define to be the name of the operating system.])
64 [[ --without-ssl disable SSL autodetection]])
67 [ --disable-opie disable support for opie or s/key FTP login],
68 ENABLE_OPIE=$enableval, ENABLE_OPIE=yes)
69 test x"${ENABLE_OPIE}" = xyes && AC_DEFINE([ENABLE_OPIE], 1,
70 [Define if you want the Opie support for FTP compiled in.])
73 [ --disable-digest disable support for HTTP digest authorization],
74 ENABLE_DIGEST=$enableval, ENABLE_DIGEST=yes)
75 test x"${ENABLE_DIGEST}" = xyes && AC_DEFINE([ENABLE_DIGEST], 1,
76 [Define if you want the HTTP Digest Authorization compiled in.])
79 [ --disable-ntlm disable support for NTLM authorization],
80 [ENABLE_NTLM=$enableval], [ENABLE_NTLM=auto])
83 [ --disable-debug disable support for debugging output],
84 ENABLE_DEBUG=$enableval, ENABLE_DEBUG=yes)
85 test x"${ENABLE_DEBUG}" = xyes && AC_DEFINE([ENABLE_DEBUG], 1,
86 [Define if you want the debug output support compiled in.])
90 case "${ENABLE_OPIE}${ENABLE_DIGEST}" in
99 dnl We want these before the checks, so the checks can modify their values.
100 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
101 test -z "$CC" && cc_specified=yes
109 dnl Turn on optimization by default. Specifically:
111 dnl if the user hasn't specified CFLAGS, then
112 dnl if compiler is gcc, then
113 dnl use -O2 and some warning flags
115 dnl use os-specific flags or -O
116 if test -n "$auto_cflags"; then
117 if test -n "$GCC"; then
118 CFLAGS="$CFLAGS -O2 -Wall"
121 *hpux*) CFLAGS="$CFLAGS +O3" ;;
122 *ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;;
123 *) CFLAGS="$CFLAGS -O" ;;
129 dnl Checks for basic compiler characteristics.
135 dnl Check for basic headers, even though we expect them to exist and
136 dnl #include them unconditionally in the code. Their detection is
137 dnl still needed because test programs used by Autoconf macros check
138 dnl for STDC_HEADERS, HAVE_SYS_TYPES_H, etc. before using them.
139 dnl Without the checks they will fail to be included in test programs,
140 dnl which will subsequently fail.
143 dnl Check for large file support. This check needs to come fairly
144 dnl early because it could (in principle) affect whether functions and
145 dnl headers are available, whether they work, etc.
147 AC_CHECK_SIZEOF(off_t)
150 dnl Checks for system header files that might be missing.
153 AC_CHECK_HEADERS(unistd.h sys/time.h)
154 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h utime.h sys/utime.h)
155 AC_CHECK_HEADERS(stdint.h inttypes.h pwd.h)
158 dnl Check sizes of integer types. These are used to find n-bit
159 dnl integral types on older systems that fail to provide intN_t and
160 dnl uintN_t typedefs.
162 AC_CHECK_SIZEOF(short)
164 AC_CHECK_SIZEOF(long)
165 AC_CHECK_SIZEOF(long long)
166 AC_CHECK_SIZEOF(void *)
169 dnl Checks for non-universal or system-specific types.
173 AC_CHECK_TYPES([uint32_t, uintptr_t, intptr_t, int64_t])
174 AC_CHECK_TYPES(sig_atomic_t, [], [], [
176 #include <sys/types.h>
178 # include <inttypes.h>
184 dnl Checks for library functions.
189 AC_CHECK_FUNCS(strptime timegm snprintf vsnprintf vasprintf drand48)
190 AC_CHECK_FUNCS(strtoll usleep ftello sigblock sigsetjmp memrchr)
192 if test x"$ENABLE_OPIE" = xyes; then
193 AC_LIBOBJ([ftp-opie])
196 dnl We expect to have these functions on Unix-like systems configure
197 dnl runs on. The defines are provided to get them in config.h.in so
198 dnl Wget can still be ported to non-Unix systems (such as Windows)
199 dnl that lack some of these functions.
200 AC_DEFINE([HAVE_STRCASECMP], 1, [Define to 1 if you have the `strcasecmp' function.])
201 AC_DEFINE([HAVE_STRNCASECMP], 1, [Define to 1 if you have the `strncasecmp' function.])
202 AC_DEFINE([HAVE_STRDUP], 1, [Define to 1 if you have the `strdup' function.])
203 AC_DEFINE([HAVE_ISATTY], 1, [Define to 1 if you have the `isatty' function.])
204 AC_DEFINE([HAVE_SYMLINK], 1, [Define to 1 if you have the `symlink' function.])
207 dnl Call Wget-specific macros defined in aclocal.
217 dnl Check if we need to compile in getopt.c.
219 AC_CHECK_FUNC(getopt_long, [], [
224 dnl Checks for libraries.
227 AS_IF([test x"$with_ssl" = xgnutls], [
228 dnl Now actually check for -lssl
229 AC_LIB_HAVE_LINKFLAGS([gnutls], [], [
230 #include <gnutls/gnutls.h>
231 ], [gnutls_global_init()])
232 if test x"$LIBGNUTLS" != x
234 AC_MSG_NOTICE([compiling in support for SSL via GnuTLS])
237 AC_MSG_ERROR([--with-ssl=gnutls was given, but GNUTLS is not available.])
240 # --with-ssl is not gnutls: check if it's no
241 AS_IF([test x"$with_ssl" != xno], [
242 dnl As of this writing (OpenSSL 0.9.6), the libcrypto shared library
243 dnl doesn't record its dependency on libdl, so we need to make sure
244 dnl -ldl ends up in LIBS on systems that have it. Most OSes use
245 dnl dlopen(), but HP-UX uses shl_load().
246 AC_CHECK_LIB(dl, dlopen, [], [
247 AC_CHECK_LIB(dl, shl_load)
250 dnl Now actually check for -lssl
251 AC_LIB_HAVE_LINKFLAGS([ssl], [crypto], [
252 #include <openssl/ssl.h>
253 #include <openssl/x509.h>
254 #include <openssl/err.h>
255 #include <openssl/rand.h>
256 #include <openssl/des.h>
257 #include <openssl/md4.h>
258 #include <openssl/md5.h>
259 ], [SSL_library_init ()])
260 if test x"$LIBSSL" != x
262 AC_MSG_NOTICE([compiling in support for SSL via OpenSSL])
264 elif test x"$with_ssl" != x
266 AC_MSG_ERROR([--with-ssl was given, but SSL is not available.])
268 ]) # endif: --with-ssl == no?
269 ]) # endif: --with-ssl == gnutls?
272 dnl Enable NTLM if requested and if SSL is available.
273 if test x"$LIBSSL" != x
275 if test x"$ENABLE_NTLM" != xno
277 AC_DEFINE([ENABLE_NTLM], 1,
278 [Define if you want the NTLM authorization support compiled in.])
279 AC_LIBOBJ([http-ntlm])
282 dnl If SSL is unavailable and the user explicitly requested NTLM,
284 if test x"$ENABLE_NTLM" = xyes
286 AC_MSG_ERROR([NTLM authorization requested and OpenSSL not found; aborting])
291 dnl Find an MD5 implementation. Since Wget rarely needs MD5, we try
292 dnl to use an existing library implementation to save on code size.
295 if test x"$wget_need_md5" = xyes
297 dnl This should be moved to an AC_DEFUN, but I'm not sure how to
298 dnl manipulate MD5_OBJ from the defun.
303 dnl Check for the system MD5 library on Solaris. We don't check for
304 dnl something simple like "MD5Update" because there are a number of
305 dnl MD5 implementations that use that name, but have an otherwise
306 dnl incompatible interface. md5_calc is, hopefully, specific to the
307 dnl Solaris MD5 library.
308 if test x"$found_md5" = xno; then
309 AC_CHECK_LIB(md5, md5_calc, [
310 dnl Some installations have bogus <md5.h> in the compiler's
311 dnl include path, making the system md5 library useless.
312 AC_MSG_CHECKING([for working md5.h])
313 AC_COMPILE_IFELSE([#include <md5.h>
316 AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define when using Solaris MD5.])
319 AC_MSG_NOTICE([using the Solaris MD5 implementation])
320 ], [AC_MSG_RESULT(no)])
324 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
326 if test x"$found_md5" = xno; then
327 if test x"$LIBSSL" != x; then
328 AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define when using OpenSSL MD5.])
330 AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
334 dnl If none of the above worked, use the one we ship with Wget.
335 if test x"$found_md5" = xno; then
336 AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define when using built-in MD5.])
339 AC_MSG_NOTICE([using the built-in (GNU) MD5 implementation])
343 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
345 dnl **********************************************************************
347 dnl **********************************************************************
350 dnl We test for IPv6 by checking, in turn, for availability of
351 dnl getaddrinfo, presence of the INET6 address/protocol family, and
352 dnl the existence of struct sockaddr_in6. If any of them is missing,
353 dnl IPv6 is disabled, and the code reverts to old-style gethostbyname.
355 dnl If --enable-ipv6 is explicitly specified on the configure command
356 dnl line, we check for IPv6 and abort if not found. If --disable-ipv6
357 dnl is specified, we disable IPv6 and don't check for it. The default
358 dnl is to autodetect IPv6 and use it where available.
362 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
363 [case "${enable_ipv6}" in
365 AC_MSG_NOTICE([disabling IPv6 at user request])
366 dnl Disable IPv6 checking
370 dnl IPv6 explicitly enabled: force its use (abort if unavailable).
375 dnl Auto-detect IPv6, i.e. check for IPv6, but don't force it.
379 AC_MSG_ERROR([Invalid --enable-ipv6 argument \`$enable_ipv6'])
383 dnl If nothing is specified, assume auto-detection.
388 if test "X$ipv6" = "Xyes"; then
389 AC_CHECK_FUNCS(getaddrinfo, [], [
390 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
395 if test "X$ipv6" = "Xyes"; then
397 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
402 if test "X$ipv6" = "Xyes"; then
403 TYPE_STRUCT_SOCKADDR_IN6([],[
404 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support \`struct sockaddr_in6'])
407 if test "X$ipv6" = "Xyes"; then
408 WGET_STRUCT_SOCKADDR_STORAGE
413 if test "X$ipv6" = "Xyes"; then
414 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
415 AC_MSG_NOTICE([Enabling support for IPv6.])
416 elif test "x$force_ipv6" = "xyes"; then
417 AC_MSG_ERROR([IPv6 support requested but not found; aborting])
422 dnl Set of available languages.
424 dnl Originally this used to be static, looking like this:
425 dnl ALL_LINGUAS="cs de hr it ..."
426 dnl The downside was that configure needed to be rebuilt whenever a
427 dnl new language was added.
429 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
431 dnl internationalization macros
435 dnl Find makeinfo. We used to provide support for Emacs processing
436 dnl Texinfo using `emacs -batch -eval ...' where makeinfo is
437 dnl unavailable, but that broke with the addition of makeinfo-specific
438 dnl command-line options, such as `-I'. Now we depend on makeinfo to
439 dnl build the Info documentation.
442 AC_CHECK_PROGS(MAKEINFO, [makeinfo], [true])
445 dnl Find perl and pod2man
448 AC_PATH_PROGS(PERL, [perl5 perl], no)
449 AC_PATH_PROG(POD2MAN, pod2man, no)
451 if test "x${POD2MAN}" = xno; then
452 COMMENT_IF_NO_POD2MAN="# "
454 COMMENT_IF_NO_POD2MAN=
456 AC_SUBST(COMMENT_IF_NO_POD2MAN)
461 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile util/Makefile
462 po/Makefile.in tests/Makefile tests/WgetTest.pm
464 AC_CONFIG_HEADERS([src/config.h])
466 #include "config-post.h"
468 AC_CONFIG_COMMANDS([default], [WGET_PROCESS_PO])