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 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 In case of {cyg,gnu}win32. Should be a _target_ test.
138 dnl Might also be erelevant for DJGPP.
141 *win32) exeext='.exe';;
147 dnl Checks for basic compiler characteristics.
153 dnl Check for basic headers, even though we expect them to exist and
154 dnl #include them unconditionally in the code. Their detection is
155 dnl still needed because test programs used by Autoconf macros check
156 dnl for STDC_HEADERS, HAVE_SYS_TYPES_H, etc. before using them.
157 dnl Without the checks they will fail to be included in test programs,
158 dnl which will subsequently fail.
161 dnl Check for large file support. This check needs to come fairly
162 dnl early because it could (in principle) affect whether functions and
163 dnl headers are available, whether they work, etc.
165 AC_CHECK_SIZEOF(off_t)
168 dnl Checks for system header files that might be missing.
171 AC_CHECK_HEADERS(unistd.h sys/time.h)
172 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h utime.h sys/utime.h)
173 AC_CHECK_HEADERS(stdint.h inttypes.h pwd.h)
176 dnl Check sizes of integer types. These are used to find n-bit
177 dnl integral types on older systems that fail to provide intN_t and
178 dnl uintN_t typedefs.
180 AC_CHECK_SIZEOF(short)
182 AC_CHECK_SIZEOF(long)
183 AC_CHECK_SIZEOF(long long)
184 AC_CHECK_SIZEOF(void *)
187 dnl Checks for non-universal or system-specific types.
191 AC_CHECK_TYPES([uint32_t, uintptr_t, intptr_t, int64_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 usleep ftello sigblock sigsetjmp memrchr)
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"$LIBGNUTLS" != x
250 AC_MSG_NOTICE([compiling in support for SSL via GnuTLS])
253 AC_MSG_ERROR([--with-ssl=gnutls was given, but GNUTLS is not available.])
255 elif test x"$with_ssl" != xno; then
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 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"$LIBSSL" != x
276 AC_MSG_NOTICE([compiling in support for SSL via OpenSSL])
278 elif test x"$with_ssl" != x
280 AC_MSG_ERROR([--with-ssl was given, but SSL is not available.])
286 dnl Enable NTLM if requested and if SSL is available.
288 if test x"$LIBSSL" != x
290 if test x"$ENABLE_NTLM" != xno
292 AC_DEFINE([ENABLE_NTLM], 1,
293 [Define if you want the NTLM authorization support compiled in.])
294 NTLM_OBJ='http-ntlm.o'
297 dnl If SSL is unavailable and the user explicitly requested NTLM,
299 if test x"$ENABLE_NTLM" = xyes
301 AC_MSG_ERROR([NTLM authorization requested and OpenSSL not found; aborting])
307 dnl Find an MD5 implementation. Since Wget rarely needs MD5, we try
308 dnl to use an existing library implementation to save on code size.
311 if test x"$wget_need_md5" = xyes
313 dnl This should be moved to an AC_DEFUN, but I'm not sure how to
314 dnl manipulate MD5_OBJ from the defun.
319 dnl Check for the system MD5 library on Solaris. We don't check for
320 dnl something simple like "MD5Update" because there are a number of
321 dnl MD5 implementations that use that name, but have an otherwise
322 dnl incompatible interface. md5_calc is, hopefully, specific to the
323 dnl Solaris MD5 library.
324 if test x"$found_md5" = xno; then
325 AC_CHECK_LIB(md5, md5_calc, [
326 dnl Some installations have bogus <md5.h> in the compiler's
327 dnl include path, making the system md5 library useless.
328 AC_MSG_CHECKING([for working md5.h])
329 AC_COMPILE_IFELSE([#include <md5.h>
332 AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define when using Solaris MD5.])
335 AC_MSG_NOTICE([using the Solaris MD5 implementation])
336 ], [AC_MSG_RESULT(no)])
340 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
342 if test x"$found_md5" = xno; then
343 if test x"$LIBSSL" != x; then
344 AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define when using OpenSSL MD5.])
346 AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
350 dnl If none of the above worked, use the one we ship with Wget.
351 if test x"$found_md5" = xno; then
352 AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define when using built-in MD5.])
353 MD5_OBJ="$MD5_OBJ gnu-md5.o"
355 AC_MSG_NOTICE([using the built-in (GNU) MD5 implementation])
359 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
362 dnl **********************************************************************
364 dnl **********************************************************************
367 dnl We test for IPv6 by checking, in turn, for availability of
368 dnl getaddrinfo, presence of the INET6 address/protocol family, and
369 dnl the existence of struct sockaddr_in6. If any of them is missing,
370 dnl IPv6 is disabled, and the code reverts to old-style gethostbyname.
372 dnl If --enable-ipv6 is explicitly specified on the configure command
373 dnl line, we check for IPv6 and abort if not found. If --disable-ipv6
374 dnl is specified, we disable IPv6 and don't check for it. The default
375 dnl is to autodetect IPv6 and use it where available.
379 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
380 [case "${enable_ipv6}" in
382 AC_MSG_NOTICE([disabling IPv6 at user request])
383 dnl Disable IPv6 checking
387 dnl IPv6 explicitly enabled: force its use (abort if unavailable).
392 dnl Auto-detect IPv6, i.e. check for IPv6, but don't force it.
396 AC_MSG_ERROR([Invalid --enable-ipv6 argument \`$enable_ipv6'])
400 dnl If nothing is specified, assume auto-detection.
405 if test "X$ipv6" = "Xyes"; then
406 AC_CHECK_FUNCS(getaddrinfo, [], [
407 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
412 if test "X$ipv6" = "Xyes"; then
414 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
419 if test "X$ipv6" = "Xyes"; then
420 TYPE_STRUCT_SOCKADDR_IN6([],[
421 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support \`struct sockaddr_in6'])
424 if test "X$ipv6" = "Xyes"; then
425 WGET_STRUCT_SOCKADDR_STORAGE
430 if test "X$ipv6" = "Xyes"; then
431 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
432 AC_MSG_NOTICE([Enabling support for IPv6.])
433 elif test "x$force_ipv6" = "xyes"; then
434 AC_MSG_ERROR([IPv6 support requested but not found; aborting])
439 dnl Set of available languages.
441 dnl Originally this used to be static, looking like this:
442 dnl ALL_LINGUAS="cs de hr it ..."
443 dnl The downside was that configure needed to be rebuilt whenever a
444 dnl new language was added.
446 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
448 dnl internationalization macros
452 dnl Find makeinfo. We used to provide support for Emacs processing
453 dnl Texinfo using `emacs -batch -eval ...' where makeinfo is
454 dnl unavailable, but that broke with the addition of makeinfo-specific
455 dnl command-line options, such as `-I'. Now we depend on makeinfo to
456 dnl build the Info documentation.
459 AC_CHECK_PROGS(MAKEINFO, [makeinfo], [true])
462 dnl Find perl and pod2man
465 AC_PATH_PROGS(PERL, [perl5 perl], no)
466 AC_PATH_PROG(POD2MAN, pod2man, no)
468 if test "x${POD2MAN}" = xno; then
469 COMMENT_IF_NO_POD2MAN="# "
471 COMMENT_IF_NO_POD2MAN=
473 AC_SUBST(COMMENT_IF_NO_POD2MAN)
478 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile util/Makefile
479 po/Makefile.in tests/Makefile windows/Makefile])
480 AC_CONFIG_HEADERS([src/config.h])
482 #include "config-post.h"
484 AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
485 AC_CONFIG_COMMANDS([default], [WGET_PROCESS_PO])