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dnl This file is part of GNU mailutils.
dnl Copyright (C) 2003, 2007, 2009 Free Software Foundation, Inc.
dnl
dnl GNU Mailutils 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, or (at your option)
dnl any later version.
dnl
dnl GNU Mailutils 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
dnl You should have received a copy of the GNU General Public License along
dnl with GNU Mailutils; if not, write to the Free Software Foundation,
dnl Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
dnl
AC_DEFUN([MU_CHECK_TLS],
[
if test "x$WITH_GNUTLS" = x; then
cached=""
AC_ARG_WITH([gnutls],
AC_HELP_STRING([--without-gnutls],
[do not use GNU TLS library]),
[WITH_GNUTLS=$withval],
[WITH_GNUTLS=yes])
if test "$WITH_GNUTLS" != "no"; then
AC_CHECK_HEADER(gnutls/gnutls.h,
[:],
[WITH_GNUTLS=no])
if test "$WITH_GNUTLS" != "no"; then
saved_LIBS=$LIBS
AC_CHECK_LIB(gcrypt, main,
[TLS_LIBS="-lgcrypt"],
[WITH_GNUTLS=no])
LIBS="$LIBS $TLS_LIBS"
AC_CHECK_LIB(gnutls, gnutls_global_init,
[TLS_LIBS="-lgnutls $TLS_LIBS"],
[WITH_GNUTLS=no])
LIBS=$saved_LIBS
fi
fi
else
cached=" (cached) "
fi
AC_MSG_CHECKING([whether to use TLS libraries])
AC_MSG_RESULT(${cached}${WITH_GNUTLS})])
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