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.
31 AC_INIT([src/version.c])
34 dnl Include the M4 macros we use.
35 builtin(include, [m4/wget.m4])dnl
36 builtin(include, [m4/lib-ld.m4])dnl
37 builtin(include, [m4/lib-link.m4])dnl
38 builtin(include, [m4/lib-prefix.m4])dnl
41 dnl What version of Wget are we building?
43 VERSION=`sed -e 's/^.*"\(.*\)";$/\1/' ${srcdir}/src/version.c`
44 AC_MSG_NOTICE([configuring for GNU Wget $VERSION])
50 dnl Get cannonical host
53 AC_DEFINE_UNQUOTED([OS_TYPE], "$host_os",
54 [Define to be the name of the operating system.])
61 [[ --without-ssl disable SSL autodetection]])
64 [ --disable-opie disable support for opie or s/key FTP login],
65 ENABLE_OPIE=$enableval, ENABLE_OPIE=yes)
66 test x"${ENABLE_OPIE}" = xyes && AC_DEFINE([ENABLE_OPIE], 1,
67 [Define if you want the Opie support for FTP compiled in.])
70 [ --disable-digest disable support for HTTP digest authorization],
71 ENABLE_DIGEST=$enableval, ENABLE_DIGEST=yes)
72 test x"${ENABLE_DIGEST}" = xyes && AC_DEFINE([ENABLE_DIGEST], 1,
73 [Define if you want the HTTP Digest Authorization compiled in.])
76 [ --disable-ntlm disable support for NTLM authorization],
77 [ENABLE_NTLM=$enableval], [ENABLE_NTLM=auto])
80 [ --disable-debug disable support for debugging output],
81 ENABLE_DEBUG=$enableval, ENABLE_DEBUG=yes)
82 test x"${ENABLE_DEBUG}" = xyes && AC_DEFINE([ENABLE_DEBUG], 1,
83 [Define if you want the debug output support compiled in.])
87 case "${ENABLE_OPIE}${ENABLE_DIGEST}" in
91 if test x"$ENABLE_OPIE" = xyes; then
97 dnl Whether make sets $(MAKE)...
102 dnl Find a good install
107 dnl Find the compiler
110 dnl We want these before the checks, so the checks can modify their values.
111 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
112 test -z "$CC" && cc_specified=yes
117 dnl Turn on optimization by default. Specifically:
119 dnl if the user hasn't specified CFLAGS, then
120 dnl if compiler is gcc, then
121 dnl use -O2 and some warning flags
123 dnl use os-specific flags or -O
124 if test -n "$auto_cflags"; then
125 if test -n "$GCC"; then
126 CFLAGS="$CFLAGS -O2 -Wall"
129 *hpux*) CFLAGS="$CFLAGS +O3" ;;
130 *ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;;
131 *) CFLAGS="$CFLAGS -O" ;;
137 dnl Checks for basic compiler characteristics.
143 dnl Check for basic headers, even though we expect them to exist and
144 dnl #include them unconditionally in the code. Their detection is
145 dnl still needed because test programs used by Autoconf macros check
146 dnl for STDC_HEADERS, HAVE_SYS_TYPES_H, etc. before using them.
147 dnl Without the checks they will fail to be included in test programs,
148 dnl which will subsequently fail.
151 dnl Check for large file support. This check needs to come fairly
152 dnl early because it could (in principle) affect whether functions and
153 dnl headers are available, whether they work, etc.
155 AC_CHECK_SIZEOF(off_t)
158 dnl Checks for system header files that might be missing.
161 AC_CHECK_HEADERS(unistd.h sys/time.h)
162 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h utime.h sys/utime.h)
163 AC_CHECK_HEADERS(stdint.h inttypes.h pwd.h)
166 dnl Check sizes of integer types. These are used to find n-bit
167 dnl integral types on older systems that fail to provide intN_t and
168 dnl uintN_t typedefs.
170 AC_CHECK_SIZEOF(short)
172 AC_CHECK_SIZEOF(long)
173 AC_CHECK_SIZEOF(long long)
174 AC_CHECK_SIZEOF(void *)
177 dnl Checks for non-universal or system-specific types.
181 AC_CHECK_TYPES([uint32_t, uintptr_t, intptr_t, int64_t])
182 AC_CHECK_TYPES(sig_atomic_t, [], [], [
184 #include <sys/types.h>
186 # include <inttypes.h>
192 dnl Checks for library functions.
197 AC_CHECK_FUNCS(strptime timegm snprintf vsnprintf vasprintf drand48)
198 AC_CHECK_FUNCS(strtoll usleep ftello sigblock sigsetjmp memrchr)
200 dnl We expect to have these functions on Unix-like systems configure
201 dnl runs on. The defines are provided to get them in config.h.in so
202 dnl Wget can still be ported to non-Unix systems (such as Windows)
203 dnl that lack some of these functions.
204 AC_DEFINE([HAVE_STRCASECMP], 1, [Define to 1 if you have the `strcasecmp' function.])
205 AC_DEFINE([HAVE_STRNCASECMP], 1, [Define to 1 if you have the `strncasecmp' function.])
206 AC_DEFINE([HAVE_STRDUP], 1, [Define to 1 if you have the `strdup' function.])
207 AC_DEFINE([HAVE_ISATTY], 1, [Define to 1 if you have the `isatty' function.])
208 AC_DEFINE([HAVE_SYMLINK], 1, [Define to 1 if you have the `symlink' function.])
211 dnl Call Wget-specific macros defined in aclocal.
221 dnl Check if we need to compile in getopt.c.
223 AC_CHECK_FUNC(getopt_long, [], [
224 GETOPT_OBJ='getopt.o'
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?
278 dnl Enable NTLM if requested and if SSL is available.
280 if test x"$LIBSSL" != x
282 if test x"$ENABLE_NTLM" != xno
284 AC_DEFINE([ENABLE_NTLM], 1,
285 [Define if you want the NTLM authorization support compiled in.])
286 NTLM_OBJ='http-ntlm.o'
289 dnl If SSL is unavailable and the user explicitly requested NTLM,
291 if test x"$ENABLE_NTLM" = xyes
293 AC_MSG_ERROR([NTLM authorization requested and OpenSSL not found; aborting])
299 dnl Find an MD5 implementation. Since Wget rarely needs MD5, we try
300 dnl to use an existing library implementation to save on code size.
303 if test x"$wget_need_md5" = xyes
305 dnl This should be moved to an AC_DEFUN, but I'm not sure how to
306 dnl manipulate MD5_OBJ from the defun.
311 dnl Check for the system MD5 library on Solaris. We don't check for
312 dnl something simple like "MD5Update" because there are a number of
313 dnl MD5 implementations that use that name, but have an otherwise
314 dnl incompatible interface. md5_calc is, hopefully, specific to the
315 dnl Solaris MD5 library.
316 if test x"$found_md5" = xno; then
317 AC_CHECK_LIB(md5, md5_calc, [
318 dnl Some installations have bogus <md5.h> in the compiler's
319 dnl include path, making the system md5 library useless.
320 AC_MSG_CHECKING([for working md5.h])
321 AC_COMPILE_IFELSE([#include <md5.h>
324 AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define when using Solaris MD5.])
327 AC_MSG_NOTICE([using the Solaris MD5 implementation])
328 ], [AC_MSG_RESULT(no)])
332 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
334 if test x"$found_md5" = xno; then
335 if test x"$LIBSSL" != x; then
336 AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define when using OpenSSL MD5.])
338 AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
342 dnl If none of the above worked, use the one we ship with Wget.
343 if test x"$found_md5" = xno; then
344 AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define when using built-in MD5.])
345 MD5_OBJ="$MD5_OBJ gnu-md5.o"
347 AC_MSG_NOTICE([using the built-in (GNU) MD5 implementation])
351 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
354 dnl **********************************************************************
356 dnl **********************************************************************
359 dnl We test for IPv6 by checking, in turn, for availability of
360 dnl getaddrinfo, presence of the INET6 address/protocol family, and
361 dnl the existence of struct sockaddr_in6. If any of them is missing,
362 dnl IPv6 is disabled, and the code reverts to old-style gethostbyname.
364 dnl If --enable-ipv6 is explicitly specified on the configure command
365 dnl line, we check for IPv6 and abort if not found. If --disable-ipv6
366 dnl is specified, we disable IPv6 and don't check for it. The default
367 dnl is to autodetect IPv6 and use it where available.
371 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
372 [case "${enable_ipv6}" in
374 AC_MSG_NOTICE([disabling IPv6 at user request])
375 dnl Disable IPv6 checking
379 dnl IPv6 explicitly enabled: force its use (abort if unavailable).
384 dnl Auto-detect IPv6, i.e. check for IPv6, but don't force it.
388 AC_MSG_ERROR([Invalid --enable-ipv6 argument \`$enable_ipv6'])
392 dnl If nothing is specified, assume auto-detection.
397 if test "X$ipv6" = "Xyes"; then
398 AC_CHECK_FUNCS(getaddrinfo, [], [
399 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
404 if test "X$ipv6" = "Xyes"; then
406 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
411 if test "X$ipv6" = "Xyes"; then
412 TYPE_STRUCT_SOCKADDR_IN6([],[
413 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support \`struct sockaddr_in6'])
416 if test "X$ipv6" = "Xyes"; then
417 WGET_STRUCT_SOCKADDR_STORAGE
422 if test "X$ipv6" = "Xyes"; then
423 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
424 AC_MSG_NOTICE([Enabling support for IPv6.])
425 elif test "x$force_ipv6" = "xyes"; then
426 AC_MSG_ERROR([IPv6 support requested but not found; aborting])
431 dnl Set of available languages.
433 dnl Originally this used to be static, looking like this:
434 dnl ALL_LINGUAS="cs de hr it ..."
435 dnl The downside was that configure needed to be rebuilt whenever a
436 dnl new language was added.
438 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
440 dnl internationalization macros
444 dnl Find makeinfo. We used to provide support for Emacs processing
445 dnl Texinfo using `emacs -batch -eval ...' where makeinfo is
446 dnl unavailable, but that broke with the addition of makeinfo-specific
447 dnl command-line options, such as `-I'. Now we depend on makeinfo to
448 dnl build the Info documentation.
451 AC_CHECK_PROGS(MAKEINFO, [makeinfo], [true])
454 dnl Find perl and pod2man
457 AC_PATH_PROGS(PERL, [perl5 perl], no)
458 AC_PATH_PROG(POD2MAN, pod2man, no)
460 if test "x${POD2MAN}" = xno; then
461 COMMENT_IF_NO_POD2MAN="# "
463 COMMENT_IF_NO_POD2MAN=
465 AC_SUBST(COMMENT_IF_NO_POD2MAN)
470 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile util/Makefile
471 po/Makefile.in tests/Makefile tests/WgetTest.pm
473 AC_CONFIG_HEADERS([src/config.h])
475 #include "config-post.h"
477 AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
478 AC_CONFIG_COMMANDS([default], [WGET_PROCESS_PO])