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 Additional permission under GNU GPL version 3 section 7
19 dnl If you modify this program, or any covered work, by linking or
20 dnl combining it with the OpenSSL project's OpenSSL library (or a
21 dnl modified version of that library), containing parts covered by the
22 dnl terms of the OpenSSL or SSLeay licenses, the Free Software Foundation
23 dnl grants you additional permission to convey the resulting work.
24 dnl Corresponding Source for a non-source form of such a combination
25 dnl shall include the source code for the parts of OpenSSL used as well
26 dnl as that of the covered work.
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 Checks for basic compiler characteristics.
144 dnl Check for basic headers, even though we expect them to exist and
145 dnl #include them unconditionally in the code. Their detection is
146 dnl still needed because test programs used by Autoconf macros check
147 dnl for STDC_HEADERS, HAVE_SYS_TYPES_H, etc. before using them.
148 dnl Without the checks they will fail to be included in test programs,
149 dnl which will subsequently fail.
152 dnl Check for large file support. This check needs to come fairly
153 dnl early because it could (in principle) affect whether functions and
154 dnl headers are available, whether they work, etc.
156 AC_CHECK_SIZEOF(off_t)
159 dnl Checks for system header files that might be missing.
162 AC_CHECK_HEADERS(unistd.h sys/time.h)
163 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h utime.h sys/utime.h)
164 AC_CHECK_HEADERS(stdint.h inttypes.h pwd.h)
167 dnl Check sizes of integer types. These are used to find n-bit
168 dnl integral types on older systems that fail to provide intN_t and
169 dnl uintN_t typedefs.
171 AC_CHECK_SIZEOF(short)
173 AC_CHECK_SIZEOF(long)
174 AC_CHECK_SIZEOF(long long)
175 AC_CHECK_SIZEOF(void *)
178 dnl Checks for non-universal or system-specific types.
182 AC_CHECK_TYPES([uint32_t, uintptr_t, intptr_t, int64_t])
183 AC_CHECK_TYPES(sig_atomic_t, [], [], [
185 #include <sys/types.h>
187 # include <inttypes.h>
193 dnl Checks for library functions.
198 AC_CHECK_FUNCS(strptime timegm snprintf vsnprintf vasprintf drand48)
199 AC_CHECK_FUNCS(strtoll usleep ftello sigblock sigsetjmp memrchr)
201 dnl We expect to have these functions on Unix-like systems configure
202 dnl runs on. The defines are provided to get them in config.h.in so
203 dnl Wget can still be ported to non-Unix systems (such as Windows)
204 dnl that lack some of these functions.
205 AC_DEFINE([HAVE_STRCASECMP], 1, [Define to 1 if you have the `strcasecmp' function.])
206 AC_DEFINE([HAVE_STRNCASECMP], 1, [Define to 1 if you have the `strncasecmp' function.])
207 AC_DEFINE([HAVE_STRDUP], 1, [Define to 1 if you have the `strdup' function.])
208 AC_DEFINE([HAVE_ISATTY], 1, [Define to 1 if you have the `isatty' function.])
209 AC_DEFINE([HAVE_SYMLINK], 1, [Define to 1 if you have the `symlink' function.])
212 dnl Call Wget-specific macros defined in aclocal.
222 dnl Check if we need to compile in getopt.c.
224 AC_CHECK_FUNC(getopt_long, [], [
225 GETOPT_OBJ='getopt.o'
230 dnl Checks for libraries.
233 AS_IF([test x"$with_ssl" = xgnutls], [
234 dnl Now actually check for -lssl
235 AC_LIB_HAVE_LINKFLAGS([gnutls], [], [
236 #include <gnutls/gnutls.h>
237 ], [gnutls_global_init()])
238 if test x"$LIBGNUTLS" != x
240 AC_MSG_NOTICE([compiling in support for SSL via GnuTLS])
243 AC_MSG_ERROR([--with-ssl=gnutls was given, but GNUTLS is not available.])
246 # --with-ssl is not gnutls: check if it's no
247 AS_IF([test x"$with_ssl" != xno], [
248 dnl As of this writing (OpenSSL 0.9.6), the libcrypto shared library
249 dnl doesn't record its dependency on libdl, so we need to make sure
250 dnl -ldl ends up in LIBS on systems that have it. Most OSes use
251 dnl dlopen(), but HP-UX uses shl_load().
252 AC_CHECK_LIB(dl, dlopen, [], [
253 AC_CHECK_LIB(dl, shl_load)
256 dnl Now actually check for -lssl
257 AC_LIB_HAVE_LINKFLAGS([ssl], [crypto], [
258 #include <openssl/ssl.h>
259 #include <openssl/x509.h>
260 #include <openssl/err.h>
261 #include <openssl/rand.h>
262 #include <openssl/des.h>
263 #include <openssl/md4.h>
264 #include <openssl/md5.h>
265 ], [SSL_library_init ()])
266 if test x"$LIBSSL" != x
268 AC_MSG_NOTICE([compiling in support for SSL via OpenSSL])
270 elif test x"$with_ssl" != x
272 AC_MSG_ERROR([--with-ssl was given, but SSL is not available.])
274 ]) # endif: --with-ssl == no?
275 ]) # endif: --with-ssl == gnutls?
279 dnl Enable NTLM if requested and if SSL is available.
281 if test x"$LIBSSL" != x
283 if test x"$ENABLE_NTLM" != xno
285 AC_DEFINE([ENABLE_NTLM], 1,
286 [Define if you want the NTLM authorization support compiled in.])
287 NTLM_OBJ='http-ntlm.o'
290 dnl If SSL is unavailable and the user explicitly requested NTLM,
292 if test x"$ENABLE_NTLM" = xyes
294 AC_MSG_ERROR([NTLM authorization requested and OpenSSL not found; aborting])
300 dnl Find an MD5 implementation. Since Wget rarely needs MD5, we try
301 dnl to use an existing library implementation to save on code size.
304 if test x"$wget_need_md5" = xyes
306 dnl This should be moved to an AC_DEFUN, but I'm not sure how to
307 dnl manipulate MD5_OBJ from the defun.
312 dnl Check for the system MD5 library on Solaris. We don't check for
313 dnl something simple like "MD5Update" because there are a number of
314 dnl MD5 implementations that use that name, but have an otherwise
315 dnl incompatible interface. md5_calc is, hopefully, specific to the
316 dnl Solaris MD5 library.
317 if test x"$found_md5" = xno; then
318 AC_CHECK_LIB(md5, md5_calc, [
319 dnl Some installations have bogus <md5.h> in the compiler's
320 dnl include path, making the system md5 library useless.
321 AC_MSG_CHECKING([for working md5.h])
322 AC_COMPILE_IFELSE([#include <md5.h>
325 AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define when using Solaris MD5.])
328 AC_MSG_NOTICE([using the Solaris MD5 implementation])
329 ], [AC_MSG_RESULT(no)])
333 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
335 if test x"$found_md5" = xno; then
336 if test x"$LIBSSL" != x; then
337 AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define when using OpenSSL MD5.])
339 AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
343 dnl If none of the above worked, use the one we ship with Wget.
344 if test x"$found_md5" = xno; then
345 AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define when using built-in MD5.])
346 MD5_OBJ="$MD5_OBJ gnu-md5.o"
348 AC_MSG_NOTICE([using the built-in (GNU) MD5 implementation])
352 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
355 dnl **********************************************************************
357 dnl **********************************************************************
360 dnl We test for IPv6 by checking, in turn, for availability of
361 dnl getaddrinfo, presence of the INET6 address/protocol family, and
362 dnl the existence of struct sockaddr_in6. If any of them is missing,
363 dnl IPv6 is disabled, and the code reverts to old-style gethostbyname.
365 dnl If --enable-ipv6 is explicitly specified on the configure command
366 dnl line, we check for IPv6 and abort if not found. If --disable-ipv6
367 dnl is specified, we disable IPv6 and don't check for it. The default
368 dnl is to autodetect IPv6 and use it where available.
372 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
373 [case "${enable_ipv6}" in
375 AC_MSG_NOTICE([disabling IPv6 at user request])
376 dnl Disable IPv6 checking
380 dnl IPv6 explicitly enabled: force its use (abort if unavailable).
385 dnl Auto-detect IPv6, i.e. check for IPv6, but don't force it.
389 AC_MSG_ERROR([Invalid --enable-ipv6 argument \`$enable_ipv6'])
393 dnl If nothing is specified, assume auto-detection.
398 if test "X$ipv6" = "Xyes"; then
399 AC_CHECK_FUNCS(getaddrinfo, [], [
400 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
405 if test "X$ipv6" = "Xyes"; then
407 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
412 if test "X$ipv6" = "Xyes"; then
413 TYPE_STRUCT_SOCKADDR_IN6([],[
414 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support \`struct sockaddr_in6'])
417 if test "X$ipv6" = "Xyes"; then
418 WGET_STRUCT_SOCKADDR_STORAGE
423 if test "X$ipv6" = "Xyes"; then
424 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
425 AC_MSG_NOTICE([Enabling support for IPv6.])
426 elif test "x$force_ipv6" = "xyes"; then
427 AC_MSG_ERROR([IPv6 support requested but not found; aborting])
432 dnl Set of available languages.
434 dnl Originally this used to be static, looking like this:
435 dnl ALL_LINGUAS="cs de hr it ..."
436 dnl The downside was that configure needed to be rebuilt whenever a
437 dnl new language was added.
439 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
441 dnl internationalization macros
445 dnl Find makeinfo. We used to provide support for Emacs processing
446 dnl Texinfo using `emacs -batch -eval ...' where makeinfo is
447 dnl unavailable, but that broke with the addition of makeinfo-specific
448 dnl command-line options, such as `-I'. Now we depend on makeinfo to
449 dnl build the Info documentation.
452 AC_CHECK_PROGS(MAKEINFO, [makeinfo], [true])
455 dnl Find perl and pod2man
458 AC_PATH_PROGS(PERL, [perl5 perl], no)
459 AC_PATH_PROG(POD2MAN, pod2man, no)
461 if test "x${POD2MAN}" = xno; then
462 COMMENT_IF_NO_POD2MAN="# "
464 COMMENT_IF_NO_POD2MAN=
466 AC_SUBST(COMMENT_IF_NO_POD2MAN)
471 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile util/Makefile
472 po/Makefile.in tests/Makefile tests/WgetTest.pm
474 AC_CONFIG_HEADERS([src/config.h])
476 #include "config-post.h"
478 AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
479 AC_CONFIG_COMMANDS([default], [WGET_PROCESS_PO])