Synopsis: tools.mk should check for available tools and more

State-Changed-From-To: open->analyzed
State-Changed-By: jlam@netbsd.org
State-Changed-When: Tue, 07 Jun 2005 18:30:08 +0000
State-Changed-Why:
This is not a tools framework issue.  I consider this a bootstrap problem,
where the bootstrap step should probe the system and set up an mk.conf
file with correct variable definitions sufficient to tell the tools
framework what's on the system.  Doing the same checks over and over
again is expensive and needless.  This PR can be closed when the
bootstrap process in pkgsrc has been improved.