AC_DEFUN(MU_CHECK_TLS, [ if test "x$WITH_GNUTLS" = x; then cached="" AC_ARG_WITH([gnutls], AC_HELP_STRING([--with-gnutls], [use GNU TLS library]), [WITH_GNUTLS=$withval], [WITH_GNUTLS=no]) if test "$WITH_GNUTLS" != "no"; then AC_CHECK_HEADER(gnutls/gnutls.h, [:], [WITH_GNUTLS=no]) if test "$WITH_GNUTLS" != "no"; then saved_LIBS=$LIBS AC_CHECK_LIB(gnutls, gnutls_global_init, [TLS_LIBS="-lgnutls"], [WITH_GNUTLS=no]) AC_CHECK_LIB(gcrypt, main, [TLS_LIBS="$TLS_LIBS -lgcrypt"], [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})])