src/libpcp_fault/src/GNUmakefile: make libpcp_fault builds work again
src/libpcp_fault/src/GNUmakefile: make libpcp_fault builds work again

This one needs to track (manually) changes in the real libpcp makefile
over in ../../libpcp/src.

adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp