der Mouse writes:
> When I "make build", it crashes in share/man/man9, saying it doesn't
> know how to make boot.9.  On closer examination, this is because "make
> cleandir" torched all the source files!  I can't see why; I can't see
> how the Makefile in man9 differs significantly from the one in man5,
> which works just fine.  But I'm quite sure Something Is Not Right.

Have you done a 'make install' in /usr/src/share/mk? Since -1.1
there's a new rule for building .9 man pages.  I got bitten by
a similar problem when upgrading to -current from 1.1