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 AS_IF([test x"$with_ssl" = xgnutls], [
243 dnl Now actually check for -lssl
244 AC_LIB_HAVE_LINKFLAGS([gnutls], [], [
245 #include <gnutls/gnutls.h>
246 ], [gnutls_global_init()])
247 if test x"$LIBGNUTLS" != x
249 AC_MSG_NOTICE([compiling in support for SSL via GnuTLS])
252 AC_MSG_ERROR([--with-ssl=gnutls was given, but GNUTLS is not available.])
255 # --with-ssl is not gnutls: check if it's no
256 AS_IF([test x"$with_ssl" != xno], [
257 dnl As of this writing (OpenSSL 0.9.6), the libcrypto shared library
258 dnl doesn't record its dependency on libdl, so we need to make sure
259 dnl -ldl ends up in LIBS on systems that have it. Most OSes use
260 dnl dlopen(), but HP-UX uses shl_load().
261 AC_CHECK_LIB(dl, dlopen, [], [
262 AC_CHECK_LIB(dl, shl_load)
265 dnl Now actually check for -lssl
266 AC_LIB_HAVE_LINKFLAGS([ssl], [crypto], [
267 #include <openssl/ssl.h>
268 #include <openssl/x509.h>
269 #include <openssl/err.h>
270 #include <openssl/rand.h>
271 #include <openssl/des.h>
272 #include <openssl/md4.h>
273 #include <openssl/md5.h>
274 ], [SSL_library_init ()])
275 if test x"$LIBSSL" != x
277 AC_MSG_NOTICE([compiling in support for SSL via OpenSSL])
279 elif test x"$with_ssl" != x
281 AC_MSG_ERROR([--with-ssl was given, but SSL is not available.])
283 ]) # endif: --with-ssl == no?
284 ]) # endif: --with-ssl == gnutls?
288 dnl Enable NTLM if requested and if SSL is available.
290 if test x"$LIBSSL" != x
292 if test x"$ENABLE_NTLM" != xno
294 AC_DEFINE([ENABLE_NTLM], 1,
295 [Define if you want the NTLM authorization support compiled in.])
296 NTLM_OBJ='http-ntlm.o'
299 dnl If SSL is unavailable and the user explicitly requested NTLM,
301 if test x"$ENABLE_NTLM" = xyes
303 AC_MSG_ERROR([NTLM authorization requested and OpenSSL not found; aborting])
309 dnl Find an MD5 implementation. Since Wget rarely needs MD5, we try
310 dnl to use an existing library implementation to save on code size.
313 if test x"$wget_need_md5" = xyes
315 dnl This should be moved to an AC_DEFUN, but I'm not sure how to
316 dnl manipulate MD5_OBJ from the defun.
321 dnl Check for the system MD5 library on Solaris. We don't check for
322 dnl something simple like "MD5Update" because there are a number of
323 dnl MD5 implementations that use that name, but have an otherwise
324 dnl incompatible interface. md5_calc is, hopefully, specific to the
325 dnl Solaris MD5 library.
326 if test x"$found_md5" = xno; then
327 AC_CHECK_LIB(md5, md5_calc, [
328 dnl Some installations have bogus <md5.h> in the compiler's
329 dnl include path, making the system md5 library useless.
330 AC_MSG_CHECKING([for working md5.h])
331 AC_COMPILE_IFELSE([#include <md5.h>
334 AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define when using Solaris MD5.])
337 AC_MSG_NOTICE([using the Solaris MD5 implementation])
338 ], [AC_MSG_RESULT(no)])
342 dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
344 if test x"$found_md5" = xno; then
345 if test x"$LIBSSL" != x; then
346 AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define when using OpenSSL MD5.])
348 AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
352 dnl If none of the above worked, use the one we ship with Wget.
353 if test x"$found_md5" = xno; then
354 AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define when using built-in MD5.])
355 MD5_OBJ="$MD5_OBJ gnu-md5.o"
357 AC_MSG_NOTICE([using the built-in (GNU) MD5 implementation])
361 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
364 dnl **********************************************************************
366 dnl **********************************************************************
369 dnl We test for IPv6 by checking, in turn, for availability of
370 dnl getaddrinfo, presence of the INET6 address/protocol family, and
371 dnl the existence of struct sockaddr_in6. If any of them is missing,
372 dnl IPv6 is disabled, and the code reverts to old-style gethostbyname.
374 dnl If --enable-ipv6 is explicitly specified on the configure command
375 dnl line, we check for IPv6 and abort if not found. If --disable-ipv6
376 dnl is specified, we disable IPv6 and don't check for it. The default
377 dnl is to autodetect IPv6 and use it where available.
381 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
382 [case "${enable_ipv6}" in
384 AC_MSG_NOTICE([disabling IPv6 at user request])
385 dnl Disable IPv6 checking
389 dnl IPv6 explicitly enabled: force its use (abort if unavailable).
394 dnl Auto-detect IPv6, i.e. check for IPv6, but don't force it.
398 AC_MSG_ERROR([Invalid --enable-ipv6 argument \`$enable_ipv6'])
402 dnl If nothing is specified, assume auto-detection.
407 if test "X$ipv6" = "Xyes"; then
408 AC_CHECK_FUNCS(getaddrinfo, [], [
409 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
414 if test "X$ipv6" = "Xyes"; then
416 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
421 if test "X$ipv6" = "Xyes"; then
422 TYPE_STRUCT_SOCKADDR_IN6([],[
423 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support \`struct sockaddr_in6'])
426 if test "X$ipv6" = "Xyes"; then
427 WGET_STRUCT_SOCKADDR_STORAGE
432 if test "X$ipv6" = "Xyes"; then
433 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
434 AC_MSG_NOTICE([Enabling support for IPv6.])
435 elif test "x$force_ipv6" = "xyes"; then
436 AC_MSG_ERROR([IPv6 support requested but not found; aborting])
441 dnl Set of available languages.
443 dnl Originally this used to be static, looking like this:
444 dnl ALL_LINGUAS="cs de hr it ..."
445 dnl The downside was that configure needed to be rebuilt whenever a
446 dnl new language was added.
448 ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
450 dnl internationalization macros
454 dnl Find makeinfo. We used to provide support for Emacs processing
455 dnl Texinfo using `emacs -batch -eval ...' where makeinfo is
456 dnl unavailable, but that broke with the addition of makeinfo-specific
457 dnl command-line options, such as `-I'. Now we depend on makeinfo to
458 dnl build the Info documentation.
461 AC_CHECK_PROGS(MAKEINFO, [makeinfo], [true])
464 dnl Find perl and pod2man
467 AC_PATH_PROGS(PERL, [perl5 perl], no)
468 AC_PATH_PROG(POD2MAN, pod2man, no)
470 if test "x${POD2MAN}" = xno; then
471 COMMENT_IF_NO_POD2MAN="# "
473 COMMENT_IF_NO_POD2MAN=
475 AC_SUBST(COMMENT_IF_NO_POD2MAN)
480 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile util/Makefile
481 po/Makefile.in tests/Makefile tests/WgetTest.pm
483 AC_CONFIG_HEADERS([src/config.h])
485 #include "config-post.h"
487 AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
488 AC_CONFIG_COMMANDS([default], [WGET_PROCESS_PO])