1 dnl Template file for GNU Autoconf
2 dnl Copyright (C) 1995, 1996, 1997, 2001 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 2 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, write to the Free Software
16 dnl Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 dnl In addition, as a special exception, the Free Software Foundation
19 dnl gives permission to link the code of its release of Wget with the
20 dnl OpenSSL project's "OpenSSL" library (or with modified versions of it
21 dnl that use the same license as the "OpenSSL" library), and distribute
22 dnl the linked executables. You must obey the GNU General Public License
23 dnl in all respects for all of the code used other than "OpenSSL". If you
24 dnl modify this file, you may extend this exception to your version of the
25 dnl file, but you are not obligated to do so. If you do not wish to do
26 dnl so, delete this exception statement from your version.
29 dnl Process this file with autoconf to produce a configure script.
32 AC_INIT([src/version.c])
35 dnl Include the M4 macros we use.
36 builtin(include, [m4/wget.m4])dnl
37 builtin(include, [m4/lib-ld.m4])dnl
38 builtin(include, [m4/lib-link.m4])dnl
39 builtin(include, [m4/lib-prefix.m4])dnl
42 dnl What version of Wget are we building?
44 VERSION=`sed -e 's/^.*"\(.*\)";$/\1/' ${srcdir}/src/version.c`
45 AC_MSG_NOTICE([configuring for GNU Wget $VERSION])
51 dnl Get cannonical host
54 AC_DEFINE_UNQUOTED([OS_TYPE], "$host_os",
55 [Define to be the name of the operating system.])
62 [[ --without-ssl disable SSL autodetection]])
65 [ --disable-opie disable support for opie or s/key FTP login],
66 ENABLE_OPIE=$enableval, ENABLE_OPIE=yes)
67 test x"${ENABLE_OPIE}" = xyes && AC_DEFINE([ENABLE_OPIE], 1,
68 [Define if you want the Opie support for FTP compiled in.])
71 [ --disable-digest disable support for HTTP digest authorization],
72 ENABLE_DIGEST=$enableval, ENABLE_DIGEST=yes)
73 test x"${ENABLE_DIGEST}" = xyes && AC_DEFINE([ENABLE_DIGEST], 1,
74 [Define if you want the HTTP Digest Authorization compiled in.])
77 [ --disable-ntlm disable support for NTLM authorization],
78 [ENABLE_NTLM=$enableval], [ENABLE_NTLM=auto])
81 [ --disable-debug disable support for debugging output],
82 ENABLE_DEBUG=$enableval, ENABLE_DEBUG=yes)
83 test x"${ENABLE_DEBUG}" = xyes && AC_DEFINE([ENABLE_DEBUG], 1,
84 [Define if you want the debug output support compiled in.])
88 case "${ENABLE_OPIE}${ENABLE_DIGEST}" in
92 if test x"$ENABLE_OPIE" = xyes; then
98 dnl Whether make sets $(MAKE)...
103 dnl Find a good install
108 dnl Find the compiler
111 dnl We want these before the checks, so the checks can modify their values.
112 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
113 test -z "$CC" && cc_specified=yes
118 dnl Turn on optimization by default. Specifically:
120 dnl if the user hasn't specified CFLAGS, then
121 dnl if compiler is gcc, then
122 dnl use -O2 and some warning flags
124 dnl use os-specific flags or -O
125 if test -n "$auto_cflags"; then
126 if test -n "$GCC"; then
127 CFLAGS="$CFLAGS -O2 -Wall -Wno-implicit"
130 *hpux*) CFLAGS="$CFLAGS +O3" ;;
131 *ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;;
132 *) CFLAGS="$CFLAGS -O" ;;
138 dnl In case of {cyg,gnu}win32. Should be a _target_ test.
139 dnl Might also be erelevant for DJGPP.
142 *win32) exeext='.exe';;
148 dnl Checks for basic compiler characteristics.
154 dnl Check for basic headers, even though we expect them to exist and
155 dnl #include them unconditionally in the code. Their detection is
156 dnl still needed because test programs used by Autoconf macros check
157 dnl for STDC_HEADERS, HAVE_SYS_TYPES_H, etc. before using them.
158 dnl Without the checks they will fail to be included in test programs,
159 dnl which will subsequently fail.
162 dnl Check for large file support. This check needs to come fairly
163 dnl early because it could (in principle) affect whether functions and
164 dnl headers are available, whether they work, etc.
166 AC_CHECK_SIZEOF(off_t)
169 dnl Checks for system header files that might be missing.
172 AC_CHECK_HEADERS(unistd.h sys/time.h)
173 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h utime.h sys/utime.h)
174 AC_CHECK_HEADERS(stdint.h inttypes.h setjmp.h pwd.h)
177 dnl Check sizes of integer types. These are used to find n-bit
178 dnl integral types on older systems that fail to provide intN_t and
179 dnl uintN_t typedefs.
181 AC_CHECK_SIZEOF(short)
183 AC_CHECK_SIZEOF(long)
184 AC_CHECK_SIZEOF(long long)
187 dnl Checks for non-universal or system-specific types.
191 AC_CHECK_TYPES(uint32_t)
192 AC_CHECK_TYPES(sig_atomic_t, [], [], [
194 #include <sys/types.h>
196 # include <inttypes.h>
202 dnl Checks for library functions.
207 AC_CHECK_FUNCS(strptime timegm snprintf vsnprintf drand48)
208 AC_CHECK_FUNCS(usleep ftello sigblock sigsetjmp symlink)
210 dnl We expect to have these functions on Unix-like systems configure
211 dnl runs on. The defines are provided to get them in config.h.in so
212 dnl Wget can still be ported to non-Unix systems (such as Windows)
213 dnl that lack some of these functions.
214 AC_DEFINE([HAVE_STRCASECMP], 1, [Define to 1 if you have the `strcasecmp' function.])
215 AC_DEFINE([HAVE_STRNCASECMP], 1, [Define to 1 if you have the `strncasecmp' function.])
216 AC_DEFINE([HAVE_STRDUP], 1, [Define to 1 if you have the `strdup' function.])
217 AC_DEFINE([HAVE_ISATTY], 1, [Define to 1 if you have the `isatty' function.])
218 AC_DEFINE([HAVE_SYMLINK], 1, [Define to 1 if you have the `symlink' function.])
221 dnl Call Wget-specific macros defined in aclocal.
231 dnl Check if we need to compile in getopt.c.
233 AC_CHECK_FUNC(getopt_long, [], [
234 GETOPT_OBJ='getopt.o'
239 dnl Checks for libraries.
242 dnl Check for OpenSSL
243 if test x"$with_ssl" != x"no"
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 dnl 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"$LIBSSL" != x
265 AC_MSG_NOTICE([compiling in support for SSL])
266 AC_DEFINE([HAVE_SSL], 1,
267 [Define if SSL support is being compiled in.])
273 dnl Enable NTLM if requested and if SSL is available.
275 if test x"$LIBSSL" != x
277 if test x"$ENABLE_NTLM" != xno
279 AC_DEFINE([ENABLE_NTLM], 1,
280 [Define if you want the NTLM authorization support compiled in.])
281 NTLM_OBJ='http-ntlm.o'
284 dnl If SSL is unavailable and the user explicitly requested NTLM,
286 if test x"$ENABLE_NTLM" = xyes
288 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 to use 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"$found_md5" = xno; then
330 if test x"$ssl_success" = xyes; then
331 AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define to use 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"$found_md5" = xno; then
339 AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define to use built-in MD5.])
340 MD5_OBJ="$MD5_OBJ gnu-md5.o"
342 AC_MSG_NOTICE([using the GNU MD5 implementation])
346 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
349 dnl **********************************************************************
351 dnl **********************************************************************
354 dnl We test for IPv6 by checking, in turn, for availability of
355 dnl getaddrinfo, presence of the INET6 address/protocol family, and
356 dnl the existence of struct sockaddr_in6. If any of them is missing,
357 dnl IPv6 is disabled, and the code reverts to old-style gethostbyname.
359 dnl If --enable-ipv6 is explicitly specified on the configure command
360 dnl line, we check for IPv6 and abort if not found. If --disable-ipv6
361 dnl is specified, we disable IPv6 and don't check for it. The default
362 dnl is to autodetect IPv6 and use it where available.
366 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
367 [case "${enable_ipv6}" in
369 AC_MSG_NOTICE([disabling IPv6 at user request])
370 dnl Disable IPv6 checking
374 dnl IPv6 explicitly enabled: force its use (abort if unavailable).
379 dnl Auto-detect IPv6, i.e. check for IPv6, but don't force it.
383 AC_MSG_ERROR([Invalid --enable-ipv6 argument \`$enable_ipv6'])
387 dnl If nothing is specified, assume auto-detection.
392 if test "X$ipv6" = "Xyes"; then
393 AC_CHECK_FUNCS(getaddrinfo, [], [
394 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
399 if test "X$ipv6" = "Xyes"; then
401 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
406 if test "X$ipv6" = "Xyes"; then
407 TYPE_STRUCT_SOCKADDR_IN6([],[
408 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support \`struct sockaddr_in6'])
411 if test "X$ipv6" = "Xyes"; then
412 WGET_STRUCT_SOCKADDR_STORAGE
417 if test "X$ipv6" = "Xyes"; then
418 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
419 AC_MSG_NOTICE([Enabling support for IPv6.])
420 elif test "x$force_ipv6" = "xyes"; then
421 AC_MSG_ERROR([IPv6 support requested but not found; aborting])
426 dnl Set of available languages.
428 dnl Originally this used to be static, looking like this:
429 dnl ALL_LINGUAS="cs de hr it ..."
430 dnl The downside was that configure needed to be rebuilt whenever a
431 dnl new language was added.
433 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
435 dnl internationalization macros
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 windows/Makefile])
467 AC_CONFIG_HEADERS([src/config.h])
469 #include "config-post.h"
471 AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
472 AC_CONFIG_COMMANDS([default], [WGET_PROCESS_PO])