$NetBSD$

--- Jamroot.orig
+++ Jamroot
@@ -253,6 +253,10 @@
        ECHO "error: both --with-<library> and --without-<library> specified" ;
        EXIT ;
    }
+   if $(without-parameter) && $(without-parameter) = "*"
+   {
+       without-parameter = $(existing-libraries) ;
+   }
 
    local wrong = [ set.difference $(with-parameter) : $(existing-libraries) ] ;
    if $(wrong)
