[BusyBox] Adding an option to tar

[R. Weber]

Hello. I'm using busybox on a box that must integrate to an existing system. 
This system downloads files via ftp, and then untars them. The untar options 
are xzmf "filename". "m" is used to get rid of complaints about differing 
time stamps.

Busybox tar doesn't support the m option. I could add tar separately, but tar 
is huge, at least by default. I'd like to add this option to busybox. Looking 
at the tar.c code, I'm lost as to how to go about this. I've added the line

 { "no-file-time",  0, NULL, 'm' },

to the tar_long_options structure, which I thought would allow the m option, 
even though I haven't added any code for it yet, but the m option is still 
unrecognized. Is there a write-up somewhere that might bet me up to speed on 
changes to busybox, a design guideline, or something?

Tnx.

- Bob