Log Message:-----------Fix makefile so it works for VPATH case.
Modified Files:-------------- pgsql/src/pl/plperl: GNUmakefile (r1.38 -> r1.39) (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/pl/plperl/GNUmakefile?r1=1.38&r2=1.39)
