Help! modifying os to support >14 char filenames (sys V.3)

[Guy Harris]

>In U*X a directory entry is defined in dir.h -- you _may_
>redefine the maximum length & recompile.

And then dump and restore all your file systems, since you've then just
changed the on-disk file format.  Also, fix up a bunch of programs that
read directories directly to use "readdir()" instead, and make sure no
programs "know" that file names are limited to 14 characters.

>Why have you got only 14-char filenames?

Presumably because he's using a system with only the V7-based S5 file
system. 

>Is this _really_ V?

The standard file system with S5 releases prior to S5R4 is V7-based, and
has a 14-character limit on file names, yes.  S5R4 also comes with the
4.3BSD file system, which has a 255-character limit....