- add config.h [Jason Evans], to create a portable version of libedit that can be easily compiled on other OS's.
- ansi prototypes & features (such as stdargs) - 8 space indents
editline first appeared in 4.4BSD not NetBSD1.0
is defined, V8 regular expresion functions are used if REGEXP is defined, and BSD regular expression functions are used if neither are defined. And defined REGEX in sys.h so that programs using libedit don't have to link with libcompat.