The PCG parallel library may be compiled in one of five different
configurations. They are single precision, double precision, complex,
double complex or all of these. The easiest method is to compile the
library with all the components, but if disk space is a limitation, a
single arithmetic precision may be selected. A Makefile is included
which does not need to be edited as long as the "f77" compiler is in
your path. Compilation is done with one of the following commands.

For a library with all the components, type:

	make all

For a single precision ONLY library, type:

	make real

For a double precision ONLY library, type:

	make double

For a single precision complex library, type:

	make complex

For a double precision complex library type:

	make doublecomplex


