Log Message:
-----------
Only build ecpg test code when the test is to be performed, in line with
other test code.
Modified Files:
--------------
pgsql/src/interfaces/ecpg:
Makefile (r1.20 -> r1.21)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/Makefile.diff?r1=1.20&r2=1.21)