I've had some warnings so far but nothing breaking at all:

/usr/obj/amd/celeron/root/local1/src/src/tools/tools.NetBSD-1.5S-sparc/bin/nbgroff -Tascii -mtty-char -mandoc /amd/celeron/root/local1/src/src/gnu/usr.bin/bc/../../dist/bc/doc/bc.1  > bc.cat1
/amd/celeron/root/local1/src/src/gnu/usr.bin/bc/../../dist/bc/doc/bc.1:642: warning: numeric expression expected (got `e')

My source host is a 1.5S box (native sparc).

James

>
>has anyone managed to build groff lately?  the only thing i can build
>from recent source constantly dumps core and that more or less kills
>the entire build process, not to mention making me question the
>stability of other programs...
>
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