allyourbase; Fix calculation of invocation dir so that is-invocation-subdir works again.

testing; Handle calculation of library name now that subdirs are correctly calculated.


[SVN r28156]

tools/build

@@ -1 +1 @@
-Subproject commit 899335b0787487c15daac88608bec38b9ecaa9f1
+Subproject commit 4446811ba189cef3d97f2404a2112e7468e0fd24