toolchain/40237: rerunning build.sh removes and rebuilds tools

[reed%reedmedia.net@localhost]

>Number:         40237
>Category:       toolchain
>Synopsis:       rerunning build.sh removes and rebuilds tools
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    toolchain-manager
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Sat Dec 20 18:20:00 +0000 2008
>Originator:     reed%reedmedia.net@localhost
>Release:        NetBSD 4.99.73
>Organization:
  Jeremy C. Reed
>Environment:
        
        
System: NetBSD tx.reedmedia.net 4.99.62 NetBSD 4.99.62 (GENERIC) #13: Wed Aug 6 
17:23:27 CDT 2008 
reed%tx.reedmedia.net@localhost:/usr/src/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:
Using netbsd-5 src. (Want to go from -current from a couple months ago
to NetBSD 5.0-BETA.)

Ran:

  ./build.sh -U tools kernel=GENERIC

And when done ran:

  ./build.sh -U distribution

That deleted all tools and rebuilt again -- waste of time.

In both cases the tools were installed to
src/tooldir.NetBSD-4.99.73-x86_64/
  
>How-To-Repeat:
        
>Fix:
I think the default for this should be to reuse existing tools.

>Unformatted: