* `dependencyClosure' now allows a search path, e.g.,

dependencyClosure { ... searchPath = [ ../foo ../bar ]; ... }

* Primop `dirOf' to return the directory part of a path (e.g., dirOf
  /a/b/c == /a/b).

* Primop `relativise' (according to Webster that's a real word!) that
  given paths A and B returns a string representing path B relative
  path to A; e.g., relativise /a/b/c a/b/x/y => "../x/y".

make/lib/find-includes.pl

@@ -9,7 +9,9 @@ print OUT "[\n";
 open IN, "<$root" or die "$!";
 while (<IN>) {
     if (/^\#include\s+\"(.*)\"/) {
-        print "DEP $1\n";
+        print OUT "\"$1\"\n";
+    }
+    if (/^\#include\s+\<(.*)\>/) {
         print OUT "\"$1\"\n";
     }
 }