+dnl Template file for GNU Autoconf
+dnl Copyright (C) 1995, 1996, 1997, 2001, 2007 Free Software Foundation, Inc.
+
+dnl This program is free software; you can redistribute it and/or modify
+dnl it under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation; either version 3 of the License, or
+dnl (at your option) any later version.
+
+dnl This program is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+dnl GNU General Public License for more details.
+
+dnl You should have received a copy of the GNU General Public License
+dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+dnl In addition, as a special exception, the Free Software Foundation
+dnl gives permission to link the code of its release of Wget with the
+dnl OpenSSL project's "OpenSSL" library (or with modified versions of it
+dnl that use the same license as the "OpenSSL" library), and distribute
+dnl the linked executables. You must obey the GNU General Public License
+dnl in all respects for all of the code used other than "OpenSSL". If you
+dnl modify this file, you may extend this exception to your version of the
+dnl file, but you are not obligated to do so. If you do not wish to do
+dnl so, delete this exception statement from your version.
+
+dnl
+dnl Process this file with autoconf to produce a configure script.
+dnl
+
+AC_INIT([wget],
+ [m4_normalize(esyscmd([sed -e 's/^.*"\(.*\)";$/\1/' src/version.c]))],
+ [bug-wget@gnu.org])
+AC_PREREQ(2.61)
+
+# Make configure depend on the VERSION file, since it's used in AC_INIT
+AC_SUBST([CONFIGURE_DEPENDENCIES], ['$(top_srcdir)/src/version.c'])
+
+dnl
+dnl What version of Wget are we building?
+dnl
+AC_MSG_NOTICE([configuring for GNU Wget $PACKAGE_VERSION])
+
+AC_CONFIG_MACRO_DIR([m4])
+AC_CONFIG_AUX_DIR([.])
+
+dnl
+dnl Automake setup
+dnl
+AM_INIT_AUTOMAKE(1.9)
+
+dnl
+dnl Gettext
+dnl
+AM_GNU_GETTEXT([external],[need-ngettext])
+AM_GNU_GETTEXT_VERSION([0.16.1])
+
+dnl
+dnl Get cannonical host
+dnl
+AC_CANONICAL_HOST
+AC_DEFINE_UNQUOTED([OS_TYPE], "$host_os",
+ [Define to be the name of the operating system.])
+
+dnl
+dnl Process features.
+dnl
+
+AC_ARG_WITH(ssl,
+[[ --without-ssl disable SSL autodetection]])
+
+AC_ARG_ENABLE(opie,
+[ --disable-opie disable support for opie or s/key FTP login],
+ENABLE_OPIE=$enableval, ENABLE_OPIE=yes)
+test x"${ENABLE_OPIE}" = xyes && AC_DEFINE([ENABLE_OPIE], 1,
+ [Define if you want the Opie support for FTP compiled in.])
+
+AC_ARG_ENABLE(digest,
+[ --disable-digest disable support for HTTP digest authorization],
+ENABLE_DIGEST=$enableval, ENABLE_DIGEST=yes)
+test x"${ENABLE_DIGEST}" = xyes && AC_DEFINE([ENABLE_DIGEST], 1,
+ [Define if you want the HTTP Digest Authorization compiled in.])
+
+AC_ARG_ENABLE(ntlm,
+[ --disable-ntlm disable support for NTLM authorization],
+[ENABLE_NTLM=$enableval], [ENABLE_NTLM=auto])
+
+AC_ARG_ENABLE(debug,
+[ --disable-debug disable support for debugging output],
+ENABLE_DEBUG=$enableval, ENABLE_DEBUG=yes)
+test x"${ENABLE_DEBUG}" = xyes && AC_DEFINE([ENABLE_DEBUG], 1,
+ [Define if you want the debug output support compiled in.])
+
+wget_need_md5=no
+
+case "${ENABLE_OPIE}${ENABLE_DIGEST}" in
+*yes*)
+ wget_need_md5=yes
+esac
+
+dnl
+dnl Find the compiler
+dnl
+
+dnl We want these before the checks, so the checks can modify their values.
+test -z "$CFLAGS" && CFLAGS= auto_cflags=1
+test -z "$CC" && cc_specified=yes
+
+AC_PROG_CC
+AM_PROG_CC_C_O
+AC_AIX
+
+AC_PROG_RANLIB
+
+dnl Turn on optimization by default. Specifically:
+dnl
+dnl if the user hasn't specified CFLAGS, then
+dnl if compiler is gcc, then
+dnl use -O2 and some warning flags
+dnl else
+dnl use os-specific flags or -O
+if test -n "$auto_cflags"; then
+ if test -n "$GCC"; then
+ CFLAGS="$CFLAGS -O2 -Wall"
+ else
+ case "$host_os" in
+ *hpux*) CFLAGS="$CFLAGS +O3" ;;
+ *ultrix* | *osf*) CFLAGS="$CFLAGS -O -Olimit 2000" ;;
+ *) CFLAGS="$CFLAGS -O" ;;
+ esac
+ fi
+fi
+
+dnl
+dnl Checks for basic compiler characteristics.
+dnl
+AC_C_CONST
+AC_C_INLINE
+AC_C_VOLATILE
+
+dnl Check for basic headers, even though we expect them to exist and
+dnl #include them unconditionally in the code. Their detection is
+dnl still needed because test programs used by Autoconf macros check
+dnl for STDC_HEADERS, HAVE_SYS_TYPES_H, etc. before using them.
+dnl Without the checks they will fail to be included in test programs,
+dnl which will subsequently fail.
+AC_HEADER_STDC
+
+dnl Check for large file support. This check needs to come fairly
+dnl early because it could (in principle) affect whether functions and
+dnl headers are available, whether they work, etc.
+AC_SYS_LARGEFILE
+AC_CHECK_SIZEOF(off_t)
+
+dnl
+dnl Checks for system header files that might be missing.
+dnl
+AC_HEADER_STDBOOL
+AC_CHECK_HEADERS(unistd.h sys/time.h)
+AC_CHECK_HEADERS(termios.h sys/ioctl.h sys/select.h utime.h sys/utime.h)
+AC_CHECK_HEADERS(stdint.h inttypes.h pwd.h)
+
+dnl
+dnl Check sizes of integer types. These are used to find n-bit
+dnl integral types on older systems that fail to provide intN_t and
+dnl uintN_t typedefs.
+dnl
+AC_CHECK_SIZEOF(short)
+AC_CHECK_SIZEOF(int)
+AC_CHECK_SIZEOF(long)
+AC_CHECK_SIZEOF(long long)
+AC_CHECK_SIZEOF(void *)
+
+dnl
+dnl Checks for non-universal or system-specific types.
+dnl
+AC_TYPE_SIZE_T
+AC_TYPE_PID_T
+AC_CHECK_TYPES([uint32_t, uintptr_t, intptr_t, int64_t])
+AC_CHECK_TYPES(sig_atomic_t, [], [], [
+#include <stdio.h>
+#include <sys/types.h>
+#if HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#include <signal.h>
+])
+
+dnl
+dnl Checks for library functions.
+dnl
+AC_FUNC_ALLOCA
+AC_FUNC_MMAP
+AC_FUNC_FSEEKO
+AC_CHECK_FUNCS(strptime timegm snprintf vsnprintf vasprintf drand48)
+AC_CHECK_FUNCS(strtoll usleep ftello sigblock sigsetjmp memrchr)
+
+if test x"$ENABLE_OPIE" = xyes; then
+ AC_LIBOBJ([ftp-opie])
+fi
+
+dnl We expect to have these functions on Unix-like systems configure
+dnl runs on. The defines are provided to get them in config.h.in so
+dnl Wget can still be ported to non-Unix systems (such as Windows)
+dnl that lack some of these functions.
+AC_DEFINE([HAVE_STRCASECMP], 1, [Define to 1 if you have the `strcasecmp' function.])
+AC_DEFINE([HAVE_STRNCASECMP], 1, [Define to 1 if you have the `strncasecmp' function.])
+AC_DEFINE([HAVE_STRDUP], 1, [Define to 1 if you have the `strdup' function.])
+AC_DEFINE([HAVE_ISATTY], 1, [Define to 1 if you have the `isatty' function.])
+AC_DEFINE([HAVE_SYMLINK], 1, [Define to 1 if you have the `symlink' function.])
+
+dnl
+dnl Call Wget-specific macros defined in aclocal.
+dnl
+WGET_STRUCT_UTIMBUF
+WGET_SOCKLEN_T
+WGET_FNMATCH
+WGET_NANOSLEEP
+WGET_POSIX_CLOCK
+WGET_NSL_SOCKET
+
+dnl
+dnl Check if we need to compile in getopt.c.
+dnl
+AC_CHECK_FUNC(getopt_long, [], [
+ AC_LIBOBJ([getopt])
+])
+
+dnl
+dnl Checks for libraries.
+dnl
+
+AS_IF([test x"$with_ssl" = xgnutls], [
+ dnl Now actually check for -lssl
+ AC_LIB_HAVE_LINKFLAGS([gnutls], [], [
+#include <gnutls/gnutls.h>
+ ], [gnutls_global_init()])
+ if test x"$LIBGNUTLS" != x
+ then
+ AC_MSG_NOTICE([compiling in support for SSL via GnuTLS])
+ AC_LIBOBJ([gnutls])
+ else
+ AC_MSG_ERROR([--with-ssl=gnutls was given, but GNUTLS is not available.])
+ fi
+], [
+ # --with-ssl is not gnutls: check if it's no
+ AS_IF([test x"$with_ssl" != xno], [
+ dnl As of this writing (OpenSSL 0.9.6), the libcrypto shared library
+ dnl doesn't record its dependency on libdl, so we need to make sure
+ dnl -ldl ends up in LIBS on systems that have it. Most OSes use
+ dnl dlopen(), but HP-UX uses shl_load().
+ AC_CHECK_LIB(dl, dlopen, [], [
+ AC_CHECK_LIB(dl, shl_load)
+ ])
+
+ dnl Now actually check for -lssl
+ AC_LIB_HAVE_LINKFLAGS([ssl], [crypto], [
+ #include <openssl/ssl.h>
+ #include <openssl/x509.h>
+ #include <openssl/err.h>
+ #include <openssl/rand.h>
+ #include <openssl/des.h>
+ #include <openssl/md4.h>
+ #include <openssl/md5.h>
+ ], [SSL_library_init ()])
+ if test x"$LIBSSL" != x
+ then
+ AC_MSG_NOTICE([compiling in support for SSL via OpenSSL])
+ AC_LIBOBJ([openssl])
+ elif test x"$with_ssl" != x
+ then
+ AC_MSG_ERROR([--with-ssl was given, but SSL is not available.])
+ fi
+ ]) # endif: --with-ssl == no?
+]) # endif: --with-ssl == gnutls?
+
+
+dnl Enable NTLM if requested and if SSL is available.
+if test x"$LIBSSL" != x
+then
+ if test x"$ENABLE_NTLM" != xno
+ then
+ AC_DEFINE([ENABLE_NTLM], 1,
+ [Define if you want the NTLM authorization support compiled in.])
+ AC_LIBOBJ([http-ntlm])
+ fi
+else
+ dnl If SSL is unavailable and the user explicitly requested NTLM,
+ dnl abort.
+ if test x"$ENABLE_NTLM" = xyes
+ then
+ AC_MSG_ERROR([NTLM authorization requested and OpenSSL not found; aborting])
+ fi
+fi
+
+dnl
+dnl Find an MD5 implementation. Since Wget rarely needs MD5, we try
+dnl to use an existing library implementation to save on code size.
+dnl
+
+if test x"$wget_need_md5" = xyes
+then
+ dnl This should be moved to an AC_DEFUN, but I'm not sure how to
+ dnl manipulate MD5_OBJ from the defun.
+
+ AC_LIBOBJ([gen-md5])
+ found_md5=no
+
+ dnl Check for the system MD5 library on Solaris. We don't check for
+ dnl something simple like "MD5Update" because there are a number of
+ dnl MD5 implementations that use that name, but have an otherwise
+ dnl incompatible interface. md5_calc is, hopefully, specific to the
+ dnl Solaris MD5 library.
+ if test x"$found_md5" = xno; then
+ AC_CHECK_LIB(md5, md5_calc, [
+ dnl Some installations have bogus <md5.h> in the compiler's
+ dnl include path, making the system md5 library useless.
+ AC_MSG_CHECKING([for working md5.h])
+ AC_COMPILE_IFELSE([#include <md5.h>
+ ], [
+ AC_MSG_RESULT(yes)
+ AC_DEFINE([HAVE_SOLARIS_MD5], 1, [Define when using Solaris MD5.])
+ LIBS="-lmd5 $LIBS"
+ found_md5=yes
+ AC_MSG_NOTICE([using the Solaris MD5 implementation])
+ ], [AC_MSG_RESULT(no)])
+ ])
+ fi
+
+ dnl Then see if we're linking OpenSSL anyway; if yes, use its md5
+ dnl implementation.
+ if test x"$found_md5" = xno; then
+ if test x"$LIBSSL" != x; then
+ AC_DEFINE([HAVE_OPENSSL_MD5], 1, [Define when using OpenSSL MD5.])
+ found_md5=yes
+ AC_MSG_NOTICE([using the OpenSSL MD5 implementation])
+ fi
+ fi
+
+ dnl If none of the above worked, use the one we ship with Wget.
+ if test x"$found_md5" = xno; then
+ AC_DEFINE([HAVE_BUILTIN_MD5], 1, [Define when using built-in MD5.])
+ AC_LIBOBJ([gnu-md5])
+ found_md5=yes
+ AC_MSG_NOTICE([using the built-in (GNU) MD5 implementation])
+ AC_C_BIGENDIAN
+ fi
+fi
+AC_DEFINE([HAVE_MD5], 1, [Define if we're compiling support for MD5.])
+
+dnl **********************************************************************
+dnl Checks for IPv6
+dnl **********************************************************************
+
+dnl
+dnl We test for IPv6 by checking, in turn, for availability of
+dnl getaddrinfo, presence of the INET6 address/protocol family, and
+dnl the existence of struct sockaddr_in6. If any of them is missing,
+dnl IPv6 is disabled, and the code reverts to old-style gethostbyname.
+dnl
+dnl If --enable-ipv6 is explicitly specified on the configure command
+dnl line, we check for IPv6 and abort if not found. If --disable-ipv6
+dnl is specified, we disable IPv6 and don't check for it. The default
+dnl is to autodetect IPv6 and use it where available.
+dnl
+
+AC_ARG_ENABLE(ipv6,
+ AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
+ [case "${enable_ipv6}" in
+ no)
+ AC_MSG_NOTICE([disabling IPv6 at user request])
+ dnl Disable IPv6 checking
+ ipv6=no
+ ;;
+ yes)
+ dnl IPv6 explicitly enabled: force its use (abort if unavailable).
+ ipv6=yes
+ force_ipv6=yes
+ ;;
+ auto)
+ dnl Auto-detect IPv6, i.e. check for IPv6, but don't force it.
+ ipv6=yes
+ ;;
+ *)
+ AC_MSG_ERROR([Invalid --enable-ipv6 argument \`$enable_ipv6'])
+ ;;
+ esac
+ ], [
+ dnl If nothing is specified, assume auto-detection.
+ ipv6=yes
+ ]
+)
+
+if test "X$ipv6" = "Xyes"; then
+ AC_CHECK_FUNCS(getaddrinfo, [], [
+ AC_MSG_NOTICE([Disabling IPv6 support: your system does not support getaddrinfo(3)])
+ ipv6=no
+ ])
+fi
+
+if test "X$ipv6" = "Xyes"; then
+ PROTO_INET6([], [
+ AC_MSG_NOTICE([Disabling IPv6 support: your system does not support the PF_INET6 protocol family])
+ ipv6=no
+ ])
+fi
+
+if test "X$ipv6" = "Xyes"; then
+ TYPE_STRUCT_SOCKADDR_IN6([],[
+ AC_MSG_NOTICE([Disabling IPv6 support: your system does not support \`struct sockaddr_in6'])
+ ipv6=no
+ ])
+ if test "X$ipv6" = "Xyes"; then
+ WGET_STRUCT_SOCKADDR_STORAGE
+ MEMBER_SIN6_SCOPE_ID
+ fi
+fi
+
+if test "X$ipv6" = "Xyes"; then
+ AC_DEFINE([ENABLE_IPV6], 1, [Define if IPv6 support is enabled.])
+ AC_MSG_NOTICE([Enabling support for IPv6.])
+elif test "x$force_ipv6" = "xyes"; then
+ AC_MSG_ERROR([IPv6 support requested but not found; aborting])
+fi
+
+
+dnl
+dnl Set of available languages.
+dnl
+dnl Originally this used to be static, looking like this:
+dnl ALL_LINGUAS="cs de hr it ..."
+dnl The downside was that configure needed to be rebuilt whenever a
+dnl new language was added.
+dnl
+dnl ALL_LINGUAS=`(cd ${srcdir}/po && ls *.po | sed -e 's/\.po$//' | tr '\012' ' ')`
+
+dnl internationalization macros
+dnl WGET_WITH_NLS
+
+dnl
+dnl Find makeinfo. We used to provide support for Emacs processing
+dnl Texinfo using `emacs -batch -eval ...' where makeinfo is
+dnl unavailable, but that broke with the addition of makeinfo-specific
+dnl command-line options, such as `-I'. Now we depend on makeinfo to
+dnl build the Info documentation.
+dnl
+
+AC_CHECK_PROGS(MAKEINFO, [makeinfo], [true])
+
+dnl
+dnl Find perl and pod2man
+dnl
+
+AC_PATH_PROGS(PERL, [perl5 perl], no)
+AC_PATH_PROG(POD2MAN, pod2man, no)
+
+if test "x${POD2MAN}" = xno; then
+ COMMENT_IF_NO_POD2MAN="# "
+else
+ COMMENT_IF_NO_POD2MAN=
+fi
+AC_SUBST(COMMENT_IF_NO_POD2MAN)
+
+dnl
+dnl Create output
+dnl
+AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile util/Makefile
+ po/Makefile.in tests/Makefile tests/WgetTest.pm
+ windows/Makefile])
+AC_CONFIG_HEADERS([src/config.h])
+AH_BOTTOM([
+#include "config-post.h"
+])
+AC_CONFIG_COMMANDS([default], [WGET_PROCESS_PO])
+AC_OUTPUT
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