* `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/compile-c.sh

@@ -70,5 +70,4 @@ fi
 
 mkdir $out
 test "$prefix" && cd $prefix
-ls -l
 gcc -Wall $cFlags -c $mainName -o $out/$mainName.o