Log Message:
-----------
Check for gcov and lcov only when coverage testing is enabled.
Modified Files:
--------------
pgsql:
configure (r1.605 -> r1.606)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/configure?r1=1.605&r2=1.606)
configure.in (r1.566 -> r1.567)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/configure.in?r1=1.566&r2=1.567)