Platform i386, ELF, fairly current

While trying to build xosview, I get:

c++  -Wl,-R/usr/X11R6/lib -L/usr/X11R6/lib -Wl,-R/usr/pkg/lib -L/usr/pkg/lib -Wl,-R/usr/X11R6/lib -L/usr/X11R6/lib -Wl,-R/usr/pkg/lib -L/usr/pkg/lib  -L/usr/pkgsrc/sysutils/xosview/work/xosview-1.7.0.b/bsd -L/usr/X11R6/lib -o xosview llist.o  Host.o  xwin.o  Xrm.o  defaultstring.o  meter.o  fieldmeter.o  fieldmeterdecay.o  fieldmetergraph.o  bitmeter.o  xosview.o  snprintf.o  main.o -lmeter -lX11 -lkvm
Host.o: In function `Host::print(ostream &) const':
Host.o(.text+0x1d8): undefined reference to `ostream::operator<<(char const *)'
Host.o(.text+0x1e1): undefined reference to `ostream::operator<<(int)'
Host.o(.text+0x1ea): undefined reference to `ostream::operator<<(char con