Don't allow BerkeleyDB 4.6.x as the current 4.6.19 release is prone
tree3dd4275fe1a01acf796cb9d28f063309da3ecba2
drwxr-xr-x - Demo
drwxr-xr-x - Doc
drwxr-xr-x - Grammar
drwxr-xr-x - Include
-rw-r--r-- 13675 LICENSE
drwxr-xr-x - Lib
drwxr-xr-x - Mac
-rw-r--r-- 35504 Makefile.pre.in
drwxr-xr-x - Misc
drwxr-xr-x - Modules
drwxr-xr-x - Objects
drwxr-xr-x - PC
drwxr-xr-x - PCbuild
drwxr-xr-x - PCbuild8
drwxr-xr-x - Parser
drwxr-xr-x - Python
-rw-r--r-- 55321 README
drwxr-xr-x - RISCOS
drwxr-xr-x - Tools
-rwxr-xr-x 635717 configure
-rw-r--r-- 98582 configure.in
-rwxr-xr-x 7122 install-sh
-rw-r--r-- 27717 pyconfig.h.in
-rw-r--r-- 71944 setup.py