Mark BROKEN: fails to link

cc -o ngraph x11/main.o x11/x11.a src/kern.a -L/usr/local/lib -lXm -lm -L/usr/local/lib -lXext -lXt -lXp -lX11 -lICE -lSM
/usr/bin/ld: cannot find -lXp

Reported by: pkg-fallout
MFH: 2019Q4