http://pendientedemigracion.ucm.es/info/Astrof/software/howto/howto-pgplot.html

Install the PGPLOT with the graphic devices: /PS, /VPS, /CPS, /VCPS and /XServe (/PS is only black and white).

In the make file the linker flag could be so:

LFLAGS = -L$(PGPLOT_DIR) -lpgplot -lz -L/usr/lib64 -lX11