dnl This would be
dnl make -C utils/pwd clean && make -C utils/pwd
dnl except we don't want to have to know what make is called. Sigh.
-if test ! -e utils/pwd/pwd && ! -e utils/pwd/pwd.exe; then
+if test ! -f utils/pwd/pwd && test ! -f utils/pwd/pwd.exe; then
cd utils/pwd
rm -f *.o
rm -f *.hi