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 "$CC" && cc_specified=yes
112 dnl Turn on optimization by default. Specifically:
114 dnl if the user hasn't specified CFLAGS, then
115 dnl if compiler is gcc, then
116 dnl use -O2 and some warning flags
118 dnl use os-specific flags or -O
119 if test -n "$auto_cflags"; then
120 if test -n "$GCC"; then
121 CFLAGS="$CFLAGS -O2 -Wall"
124 *hpux*) CFLAGS="$CFLAGS +O3" ;;
125 *ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;;
126 *) CFLAGS="$CFLAGS -O" ;;
132 dnl Checks for basic compiler characteristics.
138 dnl Check for basic headers, even though we expect them to exist and
139 dnl #include them unconditionally in the code. Their detection is
140 dnl still needed because test programs used by Autoconf macros check
141 dnl for STDC_HEADERS, HAVE_SYS_TYPES_H, etc. before using them.
142 dnl Without the checks they will fail to be included in test programs,
143 dnl which will subsequently fail.
146 dnl Check for large file support. This check needs to come fairly
147 dnl early because it could (in principle) affect whether functions and
148 dnl headers are available, whether they work, etc.
150 AC_CHECK_SIZEOF(off_t)
153 dnl Checks for system header files that might be missing.
156 AC_CHECK_HEADERS(unistd.h sys/time.h)
157 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h utime.h sys/utime.h)
158 AC_CHECK_HEADERS(stdint.h inttypes.h pwd.h)
161 dnl Check sizes of integer types. These are used to find n-bit
162 dnl integral types on older systems that fail to provide intN_t and
163 dnl uintN_t typedefs.
165 AC_CHECK_SIZEOF(short)
167 AC_CHECK_SIZEOF(long)
168 AC_CHECK_SIZEOF(long long)
169 AC_CHECK_SIZEOF(void *)
172 dnl Checks for non-universal or system-specific types.
176 AC_CHECK_TYPES([uint32_t, uintptr_t, intptr_t, int64_t])
177 AC_CHECK_TYPES(sig_atomic_t, [], [], [
179 #include <sys/types.h>
181 # include <inttypes.h>
187 dnl Checks for library functions.
192 AC_CHECK_FUNCS(strptime timegm snprintf vsnprintf vasprintf drand48)
193 AC_CHECK_FUNCS(strtoll usleep ftello sigblock sigsetjmp memrchr)
195 if test x"$ENABLE_OPIE" = xyes; then
196 AC_LIBOBJ([ftp-opie])
199 dnl We expect to have these functions on Unix-like systems configure
200 dnl runs on. The defines are provided to get them in config.h.in so
201 dnl Wget can still be ported to non-Unix systems (such as Windows)
202 dnl that lack some of these functions.
203 AC_DEFINE([HAVE_STRCASECMP], 1, [Define to 1 if you have the `strcasecmp' function.])
204 AC_DEFINE([HAVE_STRNCASECMP], 1, [Define to 1 if you have the `strncasecmp' function.])
205 AC_DEFINE([HAVE_STRDUP], 1, [Define to 1 if you have the `strdup' function.])
206 AC_DEFINE([HAVE_ISATTY], 1, [Define to 1 if you have the `isatty' function.])
207 AC_DEFINE([HAVE_SYMLINK], 1, [Define to 1 if you have the `symlink' function.])
210 dnl Call Wget-specific macros defined in aclocal.
220 dnl Check if we need to compile in getopt.c.
222 AC_CHECK_FUNC(getopt_long, [], [
227 dnl Checks for libraries.
230 AS_IF([test x"$with_ssl" = xgnutls], [
231 dnl Now actually check for -lssl
232 AC_LIB_HAVE_LINKFLAGS([gnutls], [], [
233 #include <gnutls/gnutls.h>
234 ], [gnutls_global_init()])
235 if test x"$LIBGNUTLS" != x
237 AC_MSG_NOTICE([compiling in support for SSL via GnuTLS])
240 AC_MSG_ERROR([--with-ssl=gnutls was given, but GNUTLS is not available.])
243 # --with-ssl is not gnutls: check if it's no
244 AS_IF([test x"$with_ssl" != xno], [
245 dnl As of this writing (OpenSSL 0.9.6), the libcrypto shared library
246 dnl doesn't record its dependency on libdl, so we need to make sure
247 dnl -ldl ends up in LIBS on systems that have it. Most OSes use
248 dnl dlopen(), but HP-UX uses shl_load().
249 AC_CHECK_LIB(dl, dlopen, [], [
250 AC_CHECK_LIB(dl, shl_load)
253 dnl Now actually check for -lssl
254 AC_LIB_HAVE_LINKFLAGS([ssl], [crypto], [
255 #include <openssl/ssl.h>
256 #include <openssl/x509.h>
257 #include <openssl/err.h>
258 #include <openssl/rand.h>
259 #include <openssl/des.h>
260 #include <openssl/md4.h>
261 #include <openssl/md5.h>
262 ], [SSL_library_init ()])
263 if test x"$LIBSSL" != x
265 AC_MSG_NOTICE([compiling in support for SSL via OpenSSL])
267 elif test x"$with_ssl" != x
269 AC_MSG_ERROR([--with-ssl was given, but SSL is not available.])
271 ]) # endif: --with-ssl == no?
272 ]) # endif: --with-ssl == gnutls?
275 dnl Enable NTLM if requested and if SSL is available.
276 if test x"$LIBSSL" != x
278 if test x"$ENABLE_NTLM" != xno
280 AC_DEFINE([ENABLE_NTLM], 1,
281 [Define if you want the NTLM authorization support compiled in.])
282 AC_LIBOBJ([http-ntlm])
285 dnl If SSL is unavailable and the user explicitly requested NTLM,
287 if test x"$ENABLE_NTLM" = xyes
289 AC_MSG_ERROR([NTLM authorization requested and OpenSSL not found; aborting])
294 dnl Find an MD5 implementation. Since Wget rarely needs MD5, we try
295 dnl to use an existing library implementation to save on code size.
298 if test x"$wget_need_md5" = xyes
300 dnl This should be moved to an AC_DEFUN, but I'm not sure how to
301 dnl manipulate MD5_OBJ from the defun.
306 dnl Check for the system MD5 library on Solaris. We don't check for
307 dnl something simple like "MD5Update" because there are a number of
308 dnl MD5 implementations that use that name, but have an otherwise
309 dnl incompatible interface. md5_calc is, hopefully, specific to the
310 dnl Solaris MD5 library.
311 if test x"$found_md5" = xno; then
312 AC_CHECK_LIB(md5, md5_calc, [
313 dnl Some installations have bogus <md5.h> in the compiler's
314 dnl include path, making the system md5 library useless.
315 AC_MSG_CHECKING([for working md5.h])
316 AC_COMPILE_IFELSE([#include <md5.h>
319 AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define when using Solaris MD5.])
322 AC_MSG_NOTICE([using the Solaris MD5 implementation])
323 ], [AC_MSG_RESULT(no)])
327 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
329 if test x"$found_md5" = xno; then
330 if test x"$LIBSSL" != x; then
331 AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define when using OpenSSL MD5.])
333 AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
337 dnl If none of the above worked, use the one we ship with Wget.
338 if test x"$found_md5" = xno; then
339 AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define when using built-in MD5.])
342 AC_MSG_NOTICE([using the built-in (GNU) MD5 implementation])
346 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
348 dnl **********************************************************************
350 dnl **********************************************************************
353 dnl We test for IPv6 by checking, in turn, for availability of
354 dnl getaddrinfo, presence of the INET6 address/protocol family, and
355 dnl the existence of struct sockaddr_in6. If any of them is missing,
356 dnl IPv6 is disabled, and the code reverts to old-style gethostbyname.
358 dnl If --enable-ipv6 is explicitly specified on the configure command
359 dnl line, we check for IPv6 and abort if not found. If --disable-ipv6
360 dnl is specified, we disable IPv6 and don't check for it. The default
361 dnl is to autodetect IPv6 and use it where available.
365 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
366 [case "${enable_ipv6}" in
368 AC_MSG_NOTICE([disabling IPv6 at user request])
369 dnl Disable IPv6 checking
373 dnl IPv6 explicitly enabled: force its use (abort if unavailable).
378 dnl Auto-detect IPv6, i.e. check for IPv6, but don't force it.
382 AC_MSG_ERROR([Invalid --enable-ipv6 argument \`$enable_ipv6'])
386 dnl If nothing is specified, assume auto-detection.
391 if test "X$ipv6" = "Xyes"; then
392 AC_CHECK_FUNCS(getaddrinfo, [], [
393 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
398 if test "X$ipv6" = "Xyes"; then
400 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
405 if test "X$ipv6" = "Xyes"; then
406 TYPE_STRUCT_SOCKADDR_IN6([],[
407 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support \`struct sockaddr_in6'])
410 if test "X$ipv6" = "Xyes"; then
411 WGET_STRUCT_SOCKADDR_STORAGE
416 if test "X$ipv6" = "Xyes"; then
417 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
418 AC_MSG_NOTICE([Enabling support for IPv6.])
419 elif test "x$force_ipv6" = "xyes"; then
420 AC_MSG_ERROR([IPv6 support requested but not found; aborting])
425 dnl Set of available languages.
427 dnl Originally this used to be static, looking like this:
428 dnl ALL_LINGUAS="cs de hr it ..."
429 dnl The downside was that configure needed to be rebuilt whenever a
430 dnl new language was added.
432 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
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"