I have a very strange build problem, fortunately it isn't fatal.

Whenever I do a complete build from scratch (cleaned obj and DESTDIR 
directories) the build hiccups on linking libc.a, I get an illegal 
instruction. Once that happens libc doesn't get installed and as the build 
moves on to /usr/bin the binaries can't be linked (because libc isn't 
there). However if I stop the build, cd to /usr/src/lib/libc and do a make 
dependall install then the library links and installs. Then I restart the 
build and its happy as a clam (up to usr.sbin/routed with no complaints) 
Does anyone else see this in their builds?

--Chuck