1 dnl Template file for GNU Autoconf
2 dnl Copyright (C) 1995, 1996, 1997, 2001, 2007, 2008, 2009 Free Software
5 dnl This program is free software; you can redistribute it and/or modify
6 dnl it under the terms of the GNU General Public License as published by
7 dnl the Free Software Foundation; either version 3 of the License, or
8 dnl (at your option) any later version.
10 dnl This program is distributed in the hope that it will be useful,
11 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
12 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 dnl GNU General Public License for more details.
15 dnl You should have received a copy of the GNU General Public License
16 dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
18 dnl Additional permission under GNU GPL version 3 section 7
20 dnl If you modify this program, or any covered work, by linking or
21 dnl combining it with the OpenSSL project's OpenSSL library (or a
22 dnl modified version of that library), containing parts covered by the
23 dnl terms of the OpenSSL or SSLeay licenses, the Free Software Foundation
24 dnl grants you additional permission to convey the resulting work.
25 dnl Corresponding Source for a non-source form of such a combination
26 dnl shall include the source code for the parts of OpenSSL used as well
27 dnl as that of the covered work.
30 dnl Process this file with autoconf to produce a configure script.
39 dnl What version of Wget are we building?
41 AC_MSG_NOTICE([configuring for GNU Wget $PACKAGE_VERSION])
43 AC_CONFIG_MACRO_DIR([m4])
44 AC_CONFIG_AUX_DIR([build-aux])
46 AC_CONFIG_SRCDIR([src/wget.h])
51 AM_INIT_AUTOMAKE(dist-bzip2 dist-lzma 1.9)
54 dnl Get cannonical host
57 AC_DEFINE_UNQUOTED([OS_TYPE], "$host_os",
58 [Define to be the name of the operating system.])
65 [[ --without-ssl disable SSL autodetection]])
68 [ --disable-opie disable support for opie or s/key FTP login],
69 ENABLE_OPIE=$enableval, ENABLE_OPIE=yes)
70 test x"${ENABLE_OPIE}" = xyes && AC_DEFINE([ENABLE_OPIE], 1,
71 [Define if you want the Opie support for FTP compiled in.])
74 [ --disable-digest disable support for HTTP digest authorization],
75 ENABLE_DIGEST=$enableval, ENABLE_DIGEST=yes)
76 test x"${ENABLE_DIGEST}" = xyes && AC_DEFINE([ENABLE_DIGEST], 1,
77 [Define if you want the HTTP Digest Authorization compiled in.])
80 [ --disable-ntlm disable support for NTLM authorization],
81 [ENABLE_NTLM=$enableval], [ENABLE_NTLM=auto])
84 [ --disable-debug disable support for debugging output],
85 ENABLE_DEBUG=$enableval, ENABLE_DEBUG=yes)
86 test x"${ENABLE_DEBUG}" = xyes && AC_DEFINE([ENABLE_DEBUG], 1,
87 [Define if you want the debug output support compiled in.])
91 case "${ENABLE_OPIE}${ENABLE_DIGEST}" in
100 dnl We want these before the checks, so the checks can modify their values.
101 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
102 test -z "$CC" && cc_specified=yes
114 AM_GNU_GETTEXT([external],[need-ngettext])
115 AM_GNU_GETTEXT_VERSION([0.17])
121 dnl Turn on optimization by default. Specifically:
123 dnl if the user hasn't specified CFLAGS, then
124 dnl if compiler is gcc, then
125 dnl use -O2 and some warning flags
127 dnl use os-specific flags or -O
128 if test -n "$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="$CFLAGS -O" ;;
141 dnl Checks for basic compiler characteristics.
147 dnl Check for basic headers, even though we expect them to exist and
148 dnl #include them unconditionally in the code. Their detection is
149 dnl still needed because test programs used by Autoconf macros check
150 dnl for STDC_HEADERS, HAVE_SYS_TYPES_H, etc. before using them.
151 dnl Without the checks they will fail to be included in test programs,
152 dnl which will subsequently fail.
155 dnl Check for large file support. This check needs to come fairly
156 dnl early because it could (in principle) affect whether functions and
157 dnl headers are available, whether they work, etc.
159 AC_CHECK_SIZEOF(off_t)
162 dnl Checks for system header files that might be missing.
165 AC_CHECK_HEADERS(unistd.h sys/time.h)
166 AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h utime.h sys/utime.h)
167 AC_CHECK_HEADERS(stdint.h inttypes.h pwd.h wchar.h)
169 AC_CHECK_DECLS(h_errno,,,[#include <netdb.h>])
172 dnl Check sizes of integer types. These are used to find n-bit
173 dnl integral types on older systems that fail to provide intN_t and
174 dnl uintN_t typedefs.
176 AC_CHECK_SIZEOF(short)
178 AC_CHECK_SIZEOF(long)
179 AC_CHECK_SIZEOF(long long)
180 AC_CHECK_SIZEOF(void *)
183 dnl Checks for non-universal or system-specific types.
187 AC_CHECK_TYPES([uint32_t, uintptr_t, intptr_t, int64_t])
188 AC_CHECK_TYPES(sig_atomic_t, [], [], [
190 #include <sys/types.h>
192 # include <inttypes.h>
201 dnl Checks for library functions.
205 AC_CHECK_FUNCS(strptime timegm snprintf vsnprintf vasprintf drand48)
206 AC_CHECK_FUNCS(strtoll usleep ftello sigblock sigsetjmp memrchr wcwidth mbtowc)
207 AC_CHECK_FUNCS(sleep symlink)
209 if test x"$ENABLE_OPIE" = xyes; then
210 AC_LIBOBJ([ftp-opie])
213 dnl We expect to have these functions on Unix-like systems configure
214 dnl runs on. The defines are provided to get them in config.h.in so
215 dnl Wget can still be ported to non-Unix systems (such as Windows)
216 dnl that lack some of these functions.
217 AC_DEFINE([HAVE_STRCASECMP], 1, [Define to 1 if you have the `strcasecmp' function.])
218 AC_DEFINE([HAVE_STRNCASECMP], 1, [Define to 1 if you have the `strncasecmp' function.])
219 AC_DEFINE([HAVE_STRDUP], 1, [Define to 1 if you have the `strdup' function.])
220 AC_DEFINE([HAVE_ISATTY], 1, [Define to 1 if you have the `isatty' function.])
223 dnl Call Wget-specific macros defined in aclocal.
231 dnl Deal with specific hosts
234 AC_SUBST(W32LIBS, '-lwsock32')
235 AC_LIBOBJ([mswindows])
240 dnl Checks for libraries.
243 AS_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.])
256 # --with-ssl is not gnutls: check if it's no
257 AS_IF([test x"$with_ssl" != xno], [
258 dnl As of this writing (OpenSSL 0.9.6), the libcrypto shared library
259 dnl doesn't record its dependency on libdl, so we need to make sure
260 dnl -ldl ends up in LIBS on systems that have it. Most OSes use
261 dnl dlopen(), but HP-UX uses shl_load().
262 AC_CHECK_LIB(dl, dlopen, [], [
263 AC_CHECK_LIB(dl, shl_load)
266 dnl Now actually check for -lssl
267 AC_LIB_HAVE_LINKFLAGS([ssl], [crypto], [
268 #include <openssl/ssl.h>
269 #include <openssl/x509.h>
270 #include <openssl/err.h>
271 #include <openssl/rand.h>
272 #include <openssl/des.h>
273 #include <openssl/md4.h>
274 #include <openssl/md5.h>
275 ], [SSL_library_init ()])
276 if test x"$LIBSSL" != x
278 AC_MSG_NOTICE([compiling in support for SSL via OpenSSL])
280 elif test x"$with_ssl" != x
282 AC_MSG_ERROR([--with-ssl was given, but SSL is not available.])
284 ]) # endif: --with-ssl == no?
285 ]) # endif: --with-ssl == gnutls?
288 dnl Enable NTLM if requested and if SSL is available.
289 if test x"$LIBSSL" != x
291 if test x"$ENABLE_NTLM" != xno
293 AC_DEFINE([ENABLE_NTLM], 1,
294 [Define if you want the NTLM authorization support compiled in.])
295 AC_LIBOBJ([http-ntlm])
298 dnl If SSL is unavailable and the user explicitly requested NTLM,
300 if test x"$ENABLE_NTLM" = xyes
302 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.])
354 AC_MSG_NOTICE([using the built-in (GNU) MD5 implementation])
357 AC_SUBST(MD5_CPPFLAGS, '-I $(top_srcdir)/md5')
358 AC_SUBST(MD5_LDADD, '../md5/libmd5.a')
359 AC_SUBST(MD5_SUBDIR, md5)
362 AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
365 dnl **********************************************************************
367 dnl **********************************************************************
370 dnl We test for IPv6 by checking, in turn, for availability of
371 dnl getaddrinfo, presence of the INET6 address/protocol family, and
372 dnl the existence of struct sockaddr_in6. If any of them is missing,
373 dnl IPv6 is disabled, and the code reverts to old-style gethostbyname.
375 dnl If --enable-ipv6 is explicitly specified on the configure command
376 dnl line, we check for IPv6 and abort if not found. If --disable-ipv6
377 dnl is specified, we disable IPv6 and don't check for it. The default
378 dnl is to autodetect IPv6 and use it where available.
382 AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
383 [case "${enable_ipv6}" in
385 AC_MSG_NOTICE([disabling IPv6 at user request])
386 dnl Disable IPv6 checking
390 dnl IPv6 explicitly enabled: force its use (abort if unavailable).
395 dnl Auto-detect IPv6, i.e. check for IPv6, but don't force it.
399 AC_MSG_ERROR([Invalid --enable-ipv6 argument \`$enable_ipv6'])
403 dnl If nothing is specified, assume auto-detection.
408 if test "X$ipv6" = "Xyes"; then
409 AC_CHECK_FUNCS(getaddrinfo, [], [
410 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
415 if test "X$ipv6" = "Xyes"; then
417 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
422 if test "X$ipv6" = "Xyes"; then
423 TYPE_STRUCT_SOCKADDR_IN6([],[
424 AC_MSG_NOTICE([Disabling IPv6 support: your system does not support \`struct sockaddr_in6'])
427 if test "X$ipv6" = "Xyes"; then
428 WGET_STRUCT_SOCKADDR_STORAGE
433 if test "X$ipv6" = "Xyes"; then
434 AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
435 AC_MSG_NOTICE([Enabling support for IPv6.])
436 elif test "x$force_ipv6" = "xyes"; then
437 AC_MSG_ERROR([IPv6 support requested but not found; aborting])
441 dnl Find makeinfo. We used to provide support for Emacs processing
442 dnl Texinfo using `emacs -batch -eval ...' where makeinfo is
443 dnl unavailable, but that broke with the addition of makeinfo-specific
444 dnl command-line options, such as `-I'. Now we depend on makeinfo to
445 dnl build the Info documentation.
448 AC_CHECK_PROGS(MAKEINFO, [makeinfo], [true])
451 dnl Find perl and pod2man
454 AC_PATH_PROGS(PERL, [perl5 perl], no)
455 AC_PATH_PROG(POD2MAN, pod2man, no)
457 if test "x${POD2MAN}" = xno; then
458 COMMENT_IF_NO_POD2MAN="# "
460 COMMENT_IF_NO_POD2MAN=
462 AC_SUBST(COMMENT_IF_NO_POD2MAN)
466 dnl Check for IDN/IRIs
470 AC_HELP_STRING([--disable-iri],[disable IDN/IRIs support]),
471 [case "${enable_iri}" in
473 dnl Disable IRIs checking
474 AC_MSG_NOTICE([disabling IRIs at user request])
478 dnl IRIs explicitly enabled
487 AC_MSG_ERROR([Invalid --enable-iri argument \`$enable_iri'])
491 dnl If nothing is specified, assume auto-detection
496 AC_ARG_WITH(libidn, AC_HELP_STRING([--with-libidn=[DIR]],
497 [Support IDN/IRIs (needs GNU Libidn)]),
498 libidn=$withval, libidn="")
499 AS_IF([test "X$iri" != "Xno"],[
502 if test "X$am_cv_func_iconv" != "Xyes"; then
504 if test "X$force_iri" = "Xyes"; then
505 AC_MSG_ERROR([Libiconv is required for IRIs support])
507 AC_MSG_NOTICE([disabling IRIs because libiconv wasn't found])
511 # For some reason, this seems to be set even when we don't check.
516 if test "X$iri" != "Xno"; then
517 if test "$libidn" != ""; then
518 LDFLAGS="${LDFLAGS} -L$libidn/lib"
519 CPPFLAGS="${CPPFLAGS} -I$libidn/include"
522 # If idna.h can't be found, check to see if it was installed under
523 # /usr/include/idn (OpenSolaris, at least, places it there).
524 # Check for idn-int.h in that case, because idna.h won't find
525 # idn-int.h until we've decided to add -I/usr/include/idn.
526 AC_CHECK_HEADER(idna.h, ,
527 [AC_CHECK_HEADER(idn/idn-int.h,
528 [CPPFLAGS="${CPPFLAGS} -I/usr/include/idn"],
532 if test "X$iri" != "Xno"; then
533 AC_CHECK_LIB(idn, stringprep_check_version,
534 [iri=yes LIBS="${LIBS} -lidn"], iri=no)
537 if test "X$iri" != "Xno" ; then
538 AC_DEFINE([ENABLE_IRI], 1, [Define if IRI support is enabled.])
539 AC_MSG_NOTICE([Enabling support for IRI.])
541 AC_MSG_WARN([Libidn not found])
546 dnl Needed by src/Makefile.am
547 AM_CONDITIONAL([IRI_IS_ENABLED], [test "X$iri" != "Xno"])
553 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile util/Makefile
554 po/Makefile.in tests/Makefile tests/WgetTest.pm
555 lib/Makefile md5/Makefile windows/Makefile])
556 AC_CONFIG_HEADERS([src/config.h])