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"
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 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 vasprintf drand48)
208 AC_CHECK_FUNCS(strtoll strtoimax usleep ftello sigblock sigsetjmp)
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 if test x"$with_ssl" = xgnutls
244 dnl Now actually check for -lssl
245 AC_LIB_HAVE_LINKFLAGS([gnutls], [], [
246 #include <gnutls/gnutls.h>
247 ], [gnutls_global_init()])
248 if test x"$LIBGNUTLS" != x
250 AC_MSG_NOTICE([compiling in support for SSL via GnuTLS])
251 AC_DEFINE([HAVE_GNUTLS], 1,
252 [Define if support for the GnuTLS library is being compiled in.])
256 dnl As of this writing (OpenSSL 0.9.6), the libcrypto shared library
257 dnl doesn't record its dependency on libdl, so we need to make sure
258 dnl -ldl ends up in LIBS on systems that have it. Most OSes use
259 dnl dlopen(), but HP-UX uses dnl shl_load().
260 AC_CHECK_LIB(dl, dlopen, [], [
261 AC_CHECK_LIB(dl, shl_load)
264 dnl Now actually check for -lssl
265 AC_LIB_HAVE_LINKFLAGS([ssl], [crypto], [
266 #include <openssl/ssl.h>
267 #include <openssl/x509.h>
268 #include <openssl/err.h>
269 #include <openssl/rand.h>
270 #include <openssl/des.h>
271 #include <openssl/md4.h>
272 #include <openssl/md5.h>
273 ], [SSL_library_init ()])
274 if test x"$LIBSSL" != x
276 AC_MSG_NOTICE([compiling in support for SSL via OpenSSL])
277 AC_DEFINE([HAVE_OPENSSL], 1,
278 [Define if support for the OpenSSL library is being compiled in.])
285 dnl Enable NTLM if requested and if SSL is available.
287 if test x"$LIBSSL" != x
289 if test x"$ENABLE_NTLM" != xno
291 AC_DEFINE([ENABLE_NTLM], 1,
292 [Define if you want the NTLM authorization support compiled in.])
293 NTLM_OBJ='http-ntlm.o'
296 dnl If SSL is unavailable and the user explicitly requested NTLM,
298 if test x"$ENABLE_NTLM" = xyes
300 AC_MSG_ERROR([NTLM authorization requested and OpenSSL not found; aborting])
306 dnl Find an MD5 implementation. Since Wget rarely needs MD5, we try
307 dnl to use an existing library implementation to save on code size.
310 if test x"$wget_need_md5" = xyes
312 dnl This should be moved to an AC_DEFUN, but I'm not sure how to
313 dnl manipulate MD5_OBJ from the defun.
318 dnl Check for the system MD5 library on Solaris. We don't check for
319 dnl something simple like "MD5Update" because there are a number of
320 dnl MD5 implementations that use that name, but have an otherwise
321 dnl incompatible interface. md5_calc is, hopefully, specific to the
322 dnl Solaris MD5 library.
323 if test x"$found_md5" = xno; then
324 AC_CHECK_LIB(md5, md5_calc, [
325 dnl Some installations have bogus <md5.h> in the compiler's
326 dnl include path, making the system md5 library useless.
327 AC_MSG_CHECKING([for working md5.h])
328 AC_COMPILE_IFELSE([#include <md5.h>
331 AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define when using Solaris MD5.])
334 AC_MSG_NOTICE([using the Solaris MD5 implementation])
335 ], [AC_MSG_RESULT(no)])
339 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
341 if test x"$found_md5" = xno; then
342 if test x"$LIBSSL" != x; then
343 AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define when using OpenSSL MD5.])
345 AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
349 dnl If none of the above worked, use the one we ship with Wget.
350 if test x"$found_md5" = xno; then
351 AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define when using built-in MD5.])
352 MD5_OBJ="$MD5_OBJ gnu-md5.o"
354 AC_MSG_NOTICE([using the built-in (GNU) MD5 implementation])
358 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
361 dnl **********************************************************************
363 dnl **********************************************************************
366 dnl We test for IPv6 by checking, in turn, for availability of
367 dnl getaddrinfo, presence of the INET6 address/protocol family, and
368 dnl the existence of struct sockaddr_in6. If any of them is missing,
369 dnl IPv6 is disabled, and the code reverts to old-style gethostbyname.
371 dnl If --enable-ipv6 is explicitly specified on the configure command
372 dnl line, we check for IPv6 and abort if not found. If --disable-ipv6
373 dnl is specified, we disable IPv6 and don't check for it. The default
374 dnl is to autodetect IPv6 and use it where available.
378 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
379 [case "${enable_ipv6}" in
381 AC_MSG_NOTICE([disabling IPv6 at user request])
382 dnl Disable IPv6 checking
386 dnl IPv6 explicitly enabled: force its use (abort if unavailable).
391 dnl Auto-detect IPv6, i.e. check for IPv6, but don't force it.
395 AC_MSG_ERROR([Invalid --enable-ipv6 argument \`$enable_ipv6'])
399 dnl If nothing is specified, assume auto-detection.
404 if test "X$ipv6" = "Xyes"; then
405 AC_CHECK_FUNCS(getaddrinfo, [], [
406 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
411 if test "X$ipv6" = "Xyes"; then
413 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
418 if test "X$ipv6" = "Xyes"; then
419 TYPE_STRUCT_SOCKADDR_IN6([],[
420 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support \`struct sockaddr_in6'])
423 if test "X$ipv6" = "Xyes"; then
424 WGET_STRUCT_SOCKADDR_STORAGE
429 if test "X$ipv6" = "Xyes"; then
430 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
431 AC_MSG_NOTICE([Enabling support for IPv6.])
432 elif test "x$force_ipv6" = "xyes"; then
433 AC_MSG_ERROR([IPv6 support requested but not found; aborting])
438 dnl Set of available languages.
440 dnl Originally this used to be static, looking like this:
441 dnl ALL_LINGUAS="cs de hr it ..."
442 dnl The downside was that configure needed to be rebuilt whenever a
443 dnl new language was added.
445 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
447 dnl internationalization macros
451 dnl Find makeinfo. We used to provide support for Emacs processing
452 dnl Texinfo using `emacs -batch -eval ...' where makeinfo is
453 dnl unavailable, but that broke with the addition of makeinfo-specific
454 dnl command-line options, such as `-I'. Now we depend on makeinfo to
455 dnl build the Info documentation.
458 AC_CHECK_PROGS(MAKEINFO, [makeinfo], [true])
461 dnl Find perl and pod2man
464 AC_PATH_PROGS(PERL, [perl5 perl], no)
465 AC_PATH_PROG(POD2MAN, pod2man, no)
467 if test "x${POD2MAN}" = xno; then
468 COMMENT_IF_NO_POD2MAN="# "
470 COMMENT_IF_NO_POD2MAN=
472 AC_SUBST(COMMENT_IF_NO_POD2MAN)
477 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile util/Makefile
478 po/Makefile.in windows/Makefile])
479 AC_CONFIG_HEADERS([src/config.h])
481 #include "config-post.h"
483 AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
484 AC_CONFIG_COMMANDS([default], [WGET_PROCESS_PO])