dnl Search for 'guile' and 'guild'. This macro defines
dnl 'GUILE_EFFECTIVE_VERSION'.
-GUILE_PKG([2.2])
+GUILE_PKG([3.0 2.2])
GUILE_PROGS
if test "x$GUILD" = "x"; then
AC_MSG_ERROR(['guild' binary not found; please check your guile-2.x installation.])