What does VPATH do for make?

[Stephen J. Friedl]

[ what is VPATH in make(1) used for? ]

In article <14019 at bloom-beacon.MIT.EDU>, jik at athena.mit.edu (Jonathan I. Kamens) writes:
> 
>   Our man page for make(1) says:

VPATH is really helpful, but it is undocumented and not supported
everywhere.  In addition, there are implementations that have/will
*remove* VPATH where it used to exist, so be careful depending on it.

      Steve