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dnl Template file for GNU Autoconf
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dnl Copyright (C) 1995, 1996, 1997, 2001, 2007, 2008, 2009 Free Software
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dnl Copyright (C) 1995, 1996, 1997, 2001, 2007, 2008, 2009, 2010, 2011
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dnl 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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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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WGET_STRUCT_UTIMBUF
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dnl Deal with specific hosts
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AC_LIBOBJ([mswindows])
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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"$with_ssl" != xno], [
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AS_IF([test x"$with_ssl" = xopenssl], [
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dnl some versions of openssl use zlib compression
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AC_CHECK_LIB(z, compress)
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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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AC_CHECK_LIB(dl, shl_load)
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dnl prefer link to openssl dlls if possible. if not then fallback on static libs. if not then error
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AC_CHECK_LIB(eay32, EVP_MD_CTX_init)
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if test x"$ac_cv_lib_eay32_EVP_MD_CTX_init" != xno
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AC_CHECK_LIB(ssl32, SSL_connect,,
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AC_MSG_ERROR([openssl not found: shared lib eay32 found but ssl32 not found]))
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AC_MSG_NOTICE([Enabling support for SSL via OpenSSL (shared)])
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dnl fallback and test static libs
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AC_CHECK_LIB(crypto, EVP_MD_CTX_init,,,)
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if test x"$ac_cv_lib_crypto_EVP_MD_CTX_init" != xno
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AC_CHECK_LIB(ssl, SSL_connect,, AC_MSG_ERROR([openssl not found]))
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AC_MSG_NOTICE([Enabling support for SSL via OpenSSL])
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AC_MSG_ERROR([openssl not found: shared (eay32/ssl32) or static (crypto/ssl) libs needed])
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dnl add zdll lib as dep for above tests?
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AC_CHECK_LIB(crypto, EVP_MD_CTX_init)
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AC_CHECK_LIB(ssl, ERR_func_error_string,,
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AC_MSG_ERROR([openssl development libraries not found]))
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AC_MSG_NOTICE([Enabling support for SSL via OpenSSL (static)])
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# --with-ssl is not gnutls: check if it's no
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AS_IF([test x"$with_ssl" != xno], [
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dnl Now actually check for -lssl
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AC_LIB_HAVE_LINKFLAGS([ssl], [crypto], [
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#include <openssl/ssl.h>
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#include <openssl/x509.h>
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#include <openssl/err.h>
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#include <openssl/rand.h>
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#include <openssl/des.h>
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#include <openssl/md4.h>
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#include <openssl/md5.h>
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], [SSL_library_init ()])
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if test x"$LIBSSL" != x
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AC_MSG_NOTICE([compiling in support for SSL via OpenSSL])
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elif test x"$with_ssl" != x
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AC_MSG_ERROR([--with-ssl was given, but SSL is not available.])
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AC_CHECK_LIB(z, compress)
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AC_CHECK_LIB(gpg-error, gpg_err_init)
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AC_CHECK_LIB(gcrypt, gcry_control)
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AC_CHECK_LIB(gnutls, main)
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if test x"$ac_cv_lib_gnutls_main" != xno
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AC_MSG_NOTICE([compiling in support for SSL via GnuTLS])
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AC_MSG_ERROR([--with-ssl was given, but GNUTLS is not available.])
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]) # endif: --with-ssl == no?
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]) # endif: --with-ssl == gnutls?
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]) # endif: --with-ssl == openssl?
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dnl Enable NTLM if requested and if SSL is available.
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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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AC_MSG_NOTICE([using the built-in (GNU) MD5 implementation])
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AC_SUBST(MD5_CPPFLAGS, '-I $(top_srcdir)/md5')
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AC_SUBST(MD5_LDADD, '../md5/libmd5.a')
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AC_SUBST(MD5_SUBDIR, md5)
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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 Checks for IPv6
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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 presence of the INET6 address/protocol family and the existence of
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dnl struct sockaddr_in6. If any of them is missing, IPv6 is disabled,
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dnl 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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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="en@quot en@boldquot en_US $(cd ${srcdir}/po && ls *.po | grep -v 'en@.*quot' | grep -v 'en_US\.po' | sed -e 's/\.po$//' | tr '\012' ' ')"
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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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removed
configure.ac
