added packages file to describe items in packages that other packages can safely use
-rw-r--r-- 53 .gitignore
-rw-r--r-- 656 Makefile
drwxr-xr-x - lib
-rw-r--r-- 48 lists.mk
-rw-r--r-- 34 packages.mk
-rw-r--r-- 795 targets.mk
-rw-r--r-- 290 targets.txt
drwxr-xr-x - tests
-rw-r--r-- 902 vars.mk