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 "$CC" && cc_specified=yes
121 dnl Turn on optimization by default. Specifically:
123 dnl if the user hasn't specified CFLAGS, then
124 dnl if compiler is gcc, then
125 dnl use -O2 and some warning flags
127 dnl use os-specific flags or -O
128 if test -n "$auto_cflags"; then
129 if test -n "$GCC"; then
130 CFLAGS="$CFLAGS -O2 -Wall"
133 *hpux*) CFLAGS="$CFLAGS +O3" ;;
134 *ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;;
135 *) CFLAGS="$CFLAGS -O" ;;
141 dnl In case of {cyg,gnu}win32. Should be a _target_ test.
142 dnl Might also be erelevant for DJGPP.
145 *win32) exeext='.exe';;
151 dnl Checks for basic compiler characteristics.
157 dnl Check for basic headers, even though we expect them to exist and
158 dnl #include them unconditionally in the code. Their detection is
159 dnl still needed because test programs used by Autoconf macros check
160 dnl for STDC_HEADERS, HAVE_SYS_TYPES_H, etc. before using them.
161 dnl Without the checks they will fail to be included in test programs,
162 dnl which will subsequently fail.
165 dnl Check for large file support. This check needs to come fairly
166 dnl early because it could (in principle) affect whether functions and
167 dnl headers are available, whether they work, etc.
169 AC_CHECK_SIZEOF(off_t)
172 dnl Checks for system header files that might be missing.
175 AC_CHECK_HEADERS(unistd.h sys/time.h)
176 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h utime.h sys/utime.h)
177 AC_CHECK_HEADERS(stdint.h inttypes.h pwd.h)
180 dnl Check sizes of integer types. These are used to find n-bit
181 dnl integral types on older systems that fail to provide intN_t and
182 dnl uintN_t typedefs.
184 AC_CHECK_SIZEOF(short)
186 AC_CHECK_SIZEOF(long)
187 AC_CHECK_SIZEOF(long long)
188 AC_CHECK_SIZEOF(void *)
191 dnl Checks for non-universal or system-specific types.
195 AC_CHECK_TYPES([uint32_t, uintptr_t, intptr_t, int64_t])
196 AC_CHECK_TYPES(sig_atomic_t, [], [], [
198 #include <sys/types.h>
200 # include <inttypes.h>
206 dnl Checks for library functions.
211 AC_CHECK_FUNCS(strptime timegm snprintf vsnprintf vasprintf drand48)
212 AC_CHECK_FUNCS(strtoll usleep ftello sigblock sigsetjmp memrchr)
214 dnl We expect to have these functions on Unix-like systems configure
215 dnl runs on. The defines are provided to get them in config.h.in so
216 dnl Wget can still be ported to non-Unix systems (such as Windows)
217 dnl that lack some of these functions.
218 AC_DEFINE([HAVE_STRCASECMP], 1, [Define to 1 if you have the `strcasecmp' function.])
219 AC_DEFINE([HAVE_STRNCASECMP], 1, [Define to 1 if you have the `strncasecmp' function.])
220 AC_DEFINE([HAVE_STRDUP], 1, [Define to 1 if you have the `strdup' function.])
221 AC_DEFINE([HAVE_ISATTY], 1, [Define to 1 if you have the `isatty' function.])
222 AC_DEFINE([HAVE_SYMLINK], 1, [Define to 1 if you have the `symlink' function.])
225 dnl Call Wget-specific macros defined in aclocal.
235 dnl Check if we need to compile in getopt.c.
237 AC_CHECK_FUNC(getopt_long, [], [
238 GETOPT_OBJ='getopt.o'
243 dnl Checks for libraries.
246 if test x"$with_ssl" = xgnutls
248 dnl Now actually check for -lssl
249 AC_LIB_HAVE_LINKFLAGS([gnutls], [], [
250 #include <gnutls/gnutls.h>
251 ], [gnutls_global_init()])
252 if test x"$LIBGNUTLS" != x
254 AC_MSG_NOTICE([compiling in support for SSL via GnuTLS])
257 AC_MSG_ERROR([--with-ssl=gnutls was given, but GNUTLS is not available.])
259 elif test x"$with_ssl" != xno; then
260 dnl As of this writing (OpenSSL 0.9.6), the libcrypto shared library
261 dnl doesn't record its dependency on libdl, so we need to make sure
262 dnl -ldl ends up in LIBS on systems that have it. Most OSes use
263 dnl dlopen(), but HP-UX uses shl_load().
264 AC_CHECK_LIB(dl, dlopen, [], [
265 AC_CHECK_LIB(dl, shl_load)
268 dnl Now actually check for -lssl
269 AC_LIB_HAVE_LINKFLAGS([ssl], [crypto], [
270 #include <openssl/ssl.h>
271 #include <openssl/x509.h>
272 #include <openssl/err.h>
273 #include <openssl/rand.h>
274 #include <openssl/des.h>
275 #include <openssl/md4.h>
276 #include <openssl/md5.h>
277 ], [SSL_library_init ()])
278 if test x"$LIBSSL" != x
280 AC_MSG_NOTICE([compiling in support for SSL via OpenSSL])
282 elif test x"$with_ssl" != x
284 AC_MSG_ERROR([--with-ssl was given, but SSL is not available.])
290 dnl Enable NTLM if requested and if SSL is available.
292 if test x"$LIBSSL" != x
294 if test x"$ENABLE_NTLM" != xno
296 AC_DEFINE([ENABLE_NTLM], 1,
297 [Define if you want the NTLM authorization support compiled in.])
298 NTLM_OBJ='http-ntlm.o'
301 dnl If SSL is unavailable and the user explicitly requested NTLM,
303 if test x"$ENABLE_NTLM" = xyes
305 AC_MSG_ERROR([NTLM authorization requested and OpenSSL not found; aborting])
311 dnl Find an MD5 implementation. Since Wget rarely needs MD5, we try
312 dnl to use an existing library implementation to save on code size.
315 if test x"$wget_need_md5" = xyes
317 dnl This should be moved to an AC_DEFUN, but I'm not sure how to
318 dnl manipulate MD5_OBJ from the defun.
323 dnl Check for the system MD5 library on Solaris. We don't check for
324 dnl something simple like "MD5Update" because there are a number of
325 dnl MD5 implementations that use that name, but have an otherwise
326 dnl incompatible interface. md5_calc is, hopefully, specific to the
327 dnl Solaris MD5 library.
328 if test x"$found_md5" = xno; then
329 AC_CHECK_LIB(md5, md5_calc, [
330 dnl Some installations have bogus <md5.h> in the compiler's
331 dnl include path, making the system md5 library useless.
332 AC_MSG_CHECKING([for working md5.h])
333 AC_COMPILE_IFELSE([#include <md5.h>
336 AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define when using Solaris MD5.])
339 AC_MSG_NOTICE([using the Solaris MD5 implementation])
340 ], [AC_MSG_RESULT(no)])
344 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
346 if test x"$found_md5" = xno; then
347 if test x"$LIBSSL" != x; then
348 AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define when using OpenSSL MD5.])
350 AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
354 dnl If none of the above worked, use the one we ship with Wget.
355 if test x"$found_md5" = xno; then
356 AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define when using built-in MD5.])
357 MD5_OBJ="$MD5_OBJ gnu-md5.o"
359 AC_MSG_NOTICE([using the built-in (GNU) MD5 implementation])
363 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
366 dnl **********************************************************************
368 dnl **********************************************************************
371 dnl We test for IPv6 by checking, in turn, for availability of
372 dnl getaddrinfo, presence of the INET6 address/protocol family, and
373 dnl the existence of struct sockaddr_in6. If any of them is missing,
374 dnl IPv6 is disabled, and the code reverts to old-style gethostbyname.
376 dnl If --enable-ipv6 is explicitly specified on the configure command
377 dnl line, we check for IPv6 and abort if not found. If --disable-ipv6
378 dnl is specified, we disable IPv6 and don't check for it. The default
379 dnl is to autodetect IPv6 and use it where available.
383 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
384 [case "${enable_ipv6}" in
386 AC_MSG_NOTICE([disabling IPv6 at user request])
387 dnl Disable IPv6 checking
391 dnl IPv6 explicitly enabled: force its use (abort if unavailable).
396 dnl Auto-detect IPv6, i.e. check for IPv6, but don't force it.
400 AC_MSG_ERROR([Invalid --enable-ipv6 argument \`$enable_ipv6'])
404 dnl If nothing is specified, assume auto-detection.
409 if test "X$ipv6" = "Xyes"; then
410 AC_CHECK_FUNCS(getaddrinfo, [], [
411 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
416 if test "X$ipv6" = "Xyes"; then
418 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
423 if test "X$ipv6" = "Xyes"; then
424 TYPE_STRUCT_SOCKADDR_IN6([],[
425 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support \`struct sockaddr_in6'])
428 if test "X$ipv6" = "Xyes"; then
429 WGET_STRUCT_SOCKADDR_STORAGE
434 if test "X$ipv6" = "Xyes"; then
435 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
436 AC_MSG_NOTICE([Enabling support for IPv6.])
437 elif test "x$force_ipv6" = "xyes"; then
438 AC_MSG_ERROR([IPv6 support requested but not found; aborting])
443 dnl Set of available languages.
445 dnl Originally this used to be static, looking like this:
446 dnl ALL_LINGUAS="cs de hr it ..."
447 dnl The downside was that configure needed to be rebuilt whenever a
448 dnl new language was added.
450 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
452 dnl internationalization macros
456 dnl Find makeinfo. We used to provide support for Emacs processing
457 dnl Texinfo using `emacs -batch -eval ...' where makeinfo is
458 dnl unavailable, but that broke with the addition of makeinfo-specific
459 dnl command-line options, such as `-I'. Now we depend on makeinfo to
460 dnl build the Info documentation.
463 AC_CHECK_PROGS(MAKEINFO, [makeinfo], [true])
466 dnl Find perl and pod2man
469 AC_PATH_PROGS(PERL, [perl5 perl], no)
470 AC_PATH_PROG(POD2MAN, pod2man, no)
472 if test "x${POD2MAN}" = xno; then
473 COMMENT_IF_NO_POD2MAN="# "
475 COMMENT_IF_NO_POD2MAN=
477 AC_SUBST(COMMENT_IF_NO_POD2MAN)
482 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile util/Makefile
483 po/Makefile.in tests/Makefile windows/Makefile])
484 AC_CONFIG_HEADERS([src/config.h])
486 #include "config-post.h"
488 AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
489 AC_CONFIG_COMMANDS([default], [WGET_PROCESS_PO])