Re: why is replace.mk complaining about gsed?

[John Marino <marino%netbsd.org@localhost>]

On 12/10/2011 1:37 PM, OBATA Akio wrote:
> On Sat, 10 Dec 2011 21:10:26 +0900, John Marino <marino%netbsd.org@localhost> 
> wrote:
>
> > I was able to reproduce this again.
> > I forgot that I modified the emacs20/Makefile to provide patches to 
> > David.
> > After I reverted the Makefile back to the repository version, I get this
> > again.
> >
> > gsed is not defined in ${USE_TOOLS} and it is defined in ${_USE_TOOLS}
> >
> > Do you know how that can be possible / what can cause that?
>
> As I already said, it may happen if you modify USE_TOOLS during make 
> phase.
> For example, add 'gsed' to USE_TOOLS, `make configure', drop `gsed' 
> from USE_TOOLS
> then `make build' or something.
> But such dependency changes should be done after `make clean'.
OBATA, that looks like a winner.
I was pretty sure that I had cleaned that directory multiple times, but 
after
a "make clean" command just now the error went away.

The guy with the same problem with the flex was also troubleshooting a 
package
that previously wouldn't build, so it's highly probable that a "make 
clean" would
have solved that problem as well.

So it appears such a message would only happen to a developer.  Still, 
is there
any improvement possible in this area, or is this simply a "gotcha"?
tools/replace.mk uses both _USE_TOOLS and USE_TOOLS.  Are they supposed 
to be
equivalent?  If so, should such a check be embedded in replace.mk?

Thanks,
John