use r4k cache code, which does not solve our zombie problem, but minor patches needed...
-rw-r--r-- 60 .cvsignore
-rw-r--r-- 1903 Config.in
-rw-r--r-- 5172 Makefile
-rw-r--r-- 1082 README
drwxr-xr-x - docs
drwxr-xr-x - package
-rw-r--r-- 3425 rules.mk
drwxr-xr-x - scripts
drwxr-xr-x - target
drwxr-xr-x - toolchain