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dnl Template file for GNU Autoconf
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dnl Copyright (C) 1995, 1996, 1997, 2001, 2007,
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dnl 2008 Free Software Foundation, Inc.
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dnl This program is free software; you can redistribute it and/or modify
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dnl it under the terms of the GNU General Public License as published by
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dnl the Free Software Foundation; either version 3 of the License, or
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dnl (at your option) any later version.
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dnl This program is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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dnl GNU General Public License for more details.
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dnl You should have received a copy of the GNU General Public License
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dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
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dnl Additional permission under GNU GPL version 3 section 7
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dnl If you modify this program, or any covered work, by linking or
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dnl combining it with the OpenSSL project's OpenSSL library (or a
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dnl modified version of that library), containing parts covered by the
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dnl terms of the OpenSSL or SSLeay licenses, the Free Software Foundation
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dnl grants you additional permission to convey the resulting work.
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dnl Corresponding Source for a non-source form of such a combination
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dnl shall include the source code for the parts of OpenSSL used as well
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dnl as that of the covered work.
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dnl Process this file with autoconf to produce a configure script.
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AC_INIT([src/version.c])
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dnl Include the M4 macros we use.
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builtin(include, [m4/wget.m4])dnl
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builtin(include, [m4/lib-ld.m4])dnl
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builtin(include, [m4/lib-link.m4])dnl
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builtin(include, [m4/lib-prefix.m4])dnl
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dnl What version of Wget are we building?
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VERSION=`sed -e 's/^.*"\(.*\)";$/\1/' ${srcdir}/src/version.c`
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AC_MSG_NOTICE([configuring for GNU Wget $VERSION])
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dnl Get cannonical host
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AC_DEFINE_UNQUOTED([OS_TYPE], "$host_os",
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[Define to be the name of the operating system.])
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[[ --without-ssl disable SSL autodetection]])
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[ --disable-opie disable support for opie or s/key FTP login],
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ENABLE_OPIE=$enableval, ENABLE_OPIE=yes)
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test x"${ENABLE_OPIE}" = xyes && AC_DEFINE([ENABLE_OPIE], 1,
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[Define if you want the Opie support for FTP compiled in.])
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[ --disable-digest disable support for HTTP digest authorization],
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ENABLE_DIGEST=$enableval, ENABLE_DIGEST=yes)
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test x"${ENABLE_DIGEST}" = xyes && AC_DEFINE([ENABLE_DIGEST], 1,
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[Define if you want the HTTP Digest Authorization compiled in.])
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[ --disable-ntlm disable support for NTLM authorization],
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[ENABLE_NTLM=$enableval], [ENABLE_NTLM=auto])
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[ --disable-debug disable support for debugging output],
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ENABLE_DEBUG=$enableval, ENABLE_DEBUG=yes)
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test x"${ENABLE_DEBUG}" = xyes && AC_DEFINE([ENABLE_DEBUG], 1,
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[Define if you want the debug output support compiled in.])
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case "${ENABLE_OPIE}${ENABLE_DIGEST}" in
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if test x"$ENABLE_OPIE" = xyes; then
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dnl Whether make sets $(MAKE)...
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dnl Find a good install
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dnl Find the compiler
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dnl We want these before the checks, so the checks can modify their values.
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test -z "$CFLAGS" && CFLAGS= auto_cflags=1
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test -z "$CC" && cc_specified=yes
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dnl Turn on optimization by default. Specifically:
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dnl if the user hasn't specified CFLAGS, then
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dnl if compiler is gcc, then
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dnl use -O2 and some warning flags
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dnl use os-specific flags or -O
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if test -n "$auto_cflags"; then
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if test -n "$GCC"; then
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CFLAGS="$CFLAGS -O2 -Wall"
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*hpux*) CFLAGS="$CFLAGS +O3" ;;
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*ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;;
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*) CFLAGS="$CFLAGS -O" ;;
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dnl Checks for basic compiler characteristics.
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dnl Check for basic headers, even though we expect them to exist and
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dnl #include them unconditionally in the code. Their detection is
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dnl still needed because test programs used by Autoconf macros check
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dnl for STDC_HEADERS, HAVE_SYS_TYPES_H, etc. before using them.
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dnl Without the checks they will fail to be included in test programs,
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dnl which will subsequently fail.
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dnl Check for large file support. This check needs to come fairly
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dnl early because it could (in principle) affect whether functions and
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dnl headers are available, whether they work, etc.
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AC_CHECK_SIZEOF(off_t)
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dnl Checks for system header files that might be missing.
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AC_CHECK_HEADERS(unistd.h sys/time.h)
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AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h utime.h sys/utime.h)
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AC_CHECK_HEADERS(stdint.h inttypes.h pwd.h wchar.h)
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dnl Check sizes of integer types. These are used to find n-bit
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dnl integral types on older systems that fail to provide intN_t and
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dnl uintN_t typedefs.
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AC_CHECK_SIZEOF(short)
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AC_CHECK_SIZEOF(long)
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AC_CHECK_SIZEOF(long long)
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AC_CHECK_SIZEOF(void *)
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dnl Checks for non-universal or system-specific types.
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AC_CHECK_TYPES([uint32_t, uintptr_t, intptr_t, int64_t])
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AC_CHECK_TYPES(sig_atomic_t, [], [], [
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#include <sys/types.h>
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# include <inttypes.h>
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dnl Checks for library functions.
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AC_CHECK_FUNCS(strptime timegm snprintf vsnprintf vasprintf drand48)
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AC_CHECK_FUNCS(strtoll usleep ftello sigblock sigsetjmp memrchr wcwidth mbtowc)
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dnl We expect to have these functions on Unix-like systems configure
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dnl runs on. The defines are provided to get them in config.h.in so
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dnl Wget can still be ported to non-Unix systems (such as Windows)
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dnl that lack some of these functions.
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AC_DEFINE([HAVE_STRCASECMP], 1, [Define to 1 if you have the `strcasecmp' function.])
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AC_DEFINE([HAVE_STRNCASECMP], 1, [Define to 1 if you have the `strncasecmp' function.])
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AC_DEFINE([HAVE_STRDUP], 1, [Define to 1 if you have the `strdup' function.])
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AC_DEFINE([HAVE_ISATTY], 1, [Define to 1 if you have the `isatty' function.])
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AC_DEFINE([HAVE_SYMLINK], 1, [Define to 1 if you have the `symlink' function.])
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dnl Call Wget-specific macros defined in aclocal.
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dnl Check if we need to compile in getopt.c.
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AC_CHECK_FUNC(getopt_long, [], [
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GETOPT_OBJ='getopt.o'
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dnl Checks for libraries.
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AS_IF([test x"$with_ssl" = xgnutls], [
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dnl Now actually check for -lssl
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AC_LIB_HAVE_LINKFLAGS([gnutls], [], [
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#include <gnutls/gnutls.h>
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], [gnutls_global_init()])
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if test x"$LIBGNUTLS" != x
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AC_MSG_NOTICE([compiling in support for SSL via GnuTLS])
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AC_MSG_ERROR([--with-ssl=gnutls was given, but GNUTLS is not available.])
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# --with-ssl is not gnutls: check if it's no
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AS_IF([test x"$with_ssl" != xno], [
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dnl As of this writing (OpenSSL 0.9.6), the libcrypto shared library
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dnl doesn't record its dependency on libdl, so we need to make sure
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dnl -ldl ends up in LIBS on systems that have it. Most OSes use
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dnl dlopen(), but HP-UX uses shl_load().
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AC_CHECK_LIB(dl, dlopen, [], [
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AC_CHECK_LIB(dl, shl_load)
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dnl Now actually check for -lssl
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AC_LIB_HAVE_LINKFLAGS([ssl], [crypto], [
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#include <openssl/ssl.h>
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#include <openssl/x509.h>
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#include <openssl/err.h>
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#include <openssl/rand.h>
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#include <openssl/des.h>
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#include <openssl/md4.h>
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#include <openssl/md5.h>
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], [SSL_library_init ()])
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if test x"$LIBSSL" != x
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AC_MSG_NOTICE([compiling in support for SSL via OpenSSL])
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elif test x"$with_ssl" != x
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AC_MSG_ERROR([--with-ssl was given, but SSL is not available.])
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]) # endif: --with-ssl == no?
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]) # endif: --with-ssl == gnutls?
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dnl Enable NTLM if requested and if SSL is available.
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if test x"$LIBSSL" != x
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if test x"$ENABLE_NTLM" != xno
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AC_DEFINE([ENABLE_NTLM], 1,
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[Define if you want the NTLM authorization support compiled in.])
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NTLM_OBJ='http-ntlm.o'
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dnl If SSL is unavailable and the user explicitly requested NTLM,
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if test x"$ENABLE_NTLM" = xyes
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AC_MSG_ERROR([NTLM authorization requested and OpenSSL not found; aborting])
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dnl Find an MD5 implementation. Since Wget rarely needs MD5, we try
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dnl to use an existing library implementation to save on code size.
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if test x"$wget_need_md5" = xyes
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dnl This should be moved to an AC_DEFUN, but I'm not sure how to
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dnl manipulate MD5_OBJ from the defun.
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dnl Check for the system MD5 library on Solaris. We don't check for
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dnl something simple like "MD5Update" because there are a number of
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dnl MD5 implementations that use that name, but have an otherwise
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dnl incompatible interface. md5_calc is, hopefully, specific to the
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dnl Solaris MD5 library.
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if test x"$found_md5" = xno; then
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AC_CHECK_LIB(md5, md5_calc, [
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dnl Some installations have bogus <md5.h> in the compiler's
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dnl include path, making the system md5 library useless.
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AC_MSG_CHECKING([for working md5.h])
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AC_COMPILE_IFELSE([#include <md5.h>
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AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define when using Solaris MD5.])
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AC_MSG_NOTICE([using the Solaris MD5 implementation])
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], [AC_MSG_RESULT(no)])
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dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
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if test x"$found_md5" = xno; then
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if test x"$LIBSSL" != x; then
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AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define when using OpenSSL MD5.])
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AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
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dnl If none of the above worked, use the one we ship with Wget.
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if test x"$found_md5" = xno; then
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AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define when using built-in MD5.])
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MD5_OBJ="$MD5_OBJ gnu-md5.o"
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AC_MSG_NOTICE([using the built-in (GNU) MD5 implementation])
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AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
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dnl **********************************************************************
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dnl **********************************************************************
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dnl We test for IPv6 by checking, in turn, for availability of
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dnl getaddrinfo, presence of the INET6 address/protocol family, and
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dnl the existence of struct sockaddr_in6. If any of them is missing,
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dnl IPv6 is disabled, and the code reverts to old-style gethostbyname.
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dnl If --enable-ipv6 is explicitly specified on the configure command
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dnl line, we check for IPv6 and abort if not found. If --disable-ipv6
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dnl is specified, we disable IPv6 and don't check for it. The default
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dnl is to autodetect IPv6 and use it where available.
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AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
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[case "${enable_ipv6}" in
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AC_MSG_NOTICE([disabling IPv6 at user request])
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dnl Disable IPv6 checking
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dnl IPv6 explicitly enabled: force its use (abort if unavailable).
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dnl Auto-detect IPv6, i.e. check for IPv6, but don't force it.
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AC_MSG_ERROR([Invalid --enable-ipv6 argument \`$enable_ipv6'])
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dnl If nothing is specified, assume auto-detection.
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if test "X$ipv6" = "Xyes"; then
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AC_CHECK_FUNCS(getaddrinfo, [], [
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AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
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if test "X$ipv6" = "Xyes"; then
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AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
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if test "X$ipv6" = "Xyes"; then
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TYPE_STRUCT_SOCKADDR_IN6([],[
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AC_MSG_NOTICE([Disabling IPv6 support: your system does not support \`struct sockaddr_in6'])
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if test "X$ipv6" = "Xyes"; then
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WGET_STRUCT_SOCKADDR_STORAGE
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if test "X$ipv6" = "Xyes"; then
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AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
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AC_MSG_NOTICE([Enabling support for IPv6.])
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elif test "x$force_ipv6" = "xyes"; then
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AC_MSG_ERROR([IPv6 support requested but not found; aborting])
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dnl Set of available languages.
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dnl Originally this used to be static, looking like this:
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dnl ALL_LINGUAS="cs de hr it ..."
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dnl The downside was that configure needed to be rebuilt whenever a
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dnl new language was added.
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ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
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dnl internationalization macros
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dnl Find makeinfo. We used to provide support for Emacs processing
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dnl Texinfo using `emacs -batch -eval ...' where makeinfo is
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dnl unavailable, but that broke with the addition of makeinfo-specific
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dnl command-line options, such as `-I'. Now we depend on makeinfo to
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dnl build the Info documentation.
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AC_CHECK_PROGS(MAKEINFO, [makeinfo], [true])
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dnl Find perl and pod2man
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AC_PATH_PROGS(PERL, [perl5 perl], no)
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AC_PATH_PROG(POD2MAN, pod2man, no)
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if test "x${POD2MAN}" = xno; then
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COMMENT_IF_NO_POD2MAN="# "
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COMMENT_IF_NO_POD2MAN=
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AC_SUBST(COMMENT_IF_NO_POD2MAN)
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AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile util/Makefile
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po/Makefile.in tests/Makefile tests/WgetTest.pm
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AC_CONFIG_HEADERS([src/config.h])
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#include "config-post.h"
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AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
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AC_CONFIG_COMMANDS([default], [WGET_PROCESS_PO])
added
removed
configure.in
