Oh, just saw this while making packages:

===> Installing for p5-Devel-Peek-1.0001
Installing /usr/pkg/lib/perl5/site_perl/5.6.0/powerpc-netbsd/auto/Devel/Peek/Peek.so
Installing /usr/pkg/lib/perl5/site_perl/5.6.0/powerpc-netbsd/auto/Devel/Peek/Peek.bs
Files found in blib/arch: installing files in blib/lib into architecture dependent library tree
Installing /usr/pkg/lib/perl5/site_perl/5.6.0/powerpc-netbsd/Devel/Peek.pm
Writing /usr/pkg/lib/perl5/site_perl/5.6.0/powerpc-netbsd/auto/Devel/Peek/.packlist
Appending installation info to /usr/pkg/lib/perl5/5.6.0/powerpc-netbsd/perllocal.pod
xargs: Cannot fork
vfork: Cannot allocate memory

Although it was a few levels down in recursive makes, I wasn't near the
80 process limit... (limit maxproc)