When in automatic dependency mode, never delete any intermediate files automatically.  Otherwise, the following could happen: When starting from a clean source tree, the first build would delete the intermediate file, but also create the dependency file, which mentions the intermediate file, thus making it non-intermediate. The second build will then need to rebuild the now non-intermediate missing file.  So the second build will do work even though nothing had changed.  One place where this happens is the .c -> .o -> .so chain for some contrib modules.
When in automatic dependency mode, never delete any intermediate
files automatically.  Otherwise, the following could happen: When
starting from a clean source tree, the first build would delete the
intermediate file, but also create the dependency file, which
mentions the intermediate file, thus making it non-intermediate.
The second build will then need to rebuild the now non-intermediate
missing file.  So the second build will do work even though nothing
had changed.  One place where this happens is the .c -> .o -> .so
chain for some contrib modules.

xinzweb/gpdb,greenplum-db/gpdb,yazun/postgres-xl,adam8157/gpdb,yazun/postgres-xl,Postgres-XL/Postgres-XL,oberstet/postgres-xl,ashwinstar/gpdb,ashwinstar/gpdb,kmjungersen/PostgresXL,xinzweb/gpdb,ovr/postgres-xl,kmjungersen/PostgresXL,greenplum-db/gpdb,greenplum-db/gpdb,pavanvd/postgres-xl,adam8157/gpdb,adam8157/gpdb,lisakowen/gpdb,postmind-net/postgres-xl,pavanvd/postgres-xl,xinzweb/gpdb,zeroae/postgres-xl,greenplum-db/gpdb,greenplum-db/gpdb,greenplum-db/gpdb,zeroae/postgres-xl,xinzweb/gpdb,zeroae/postgres-xl,tpostgres-projects/tPostgres,tpostgres-projects/tPostgres,arcivanov/postgres-xl,jmcatamney/gpdb,ashwinstar/gpdb,pavanvd/postgres-xl,50wu/gpdb,arcivanov/postgres-xl,jmcatamney/gpdb,techdragon/Postgres-XL,oberstet/postgres-xl,zeroae/postgres-xl,oberstet/postgres-xl,50wu/gpdb,jmcatamney/gpdb,ovr/postgres-xl,50wu/gpdb,techdragon/Postgres-XL,greenplum-db/gpdb,ovr/postgres-xl,Postgres-XL/Postgres-XL,pavanvd/postgres-xl,arcivanov/postgres-xl,jmcatamney/gpdb,snaga/postgres-xl,kmjungersen/PostgresXL,50wu/gpdb,snaga/postgres-xl,postmind-net/postgres-xl,Postgres-XL/Postgres-XL,ashwinstar/gpdb,xinzweb/gpdb,xinzweb/gpdb,ashwinstar/gpdb,snaga/postgres-xl,postmind-net/postgres-xl,adam8157/gpdb,oberstet/postgres-xl,ashwinstar/gpdb,kmjungersen/PostgresXL,xinzweb/gpdb,snaga/postgres-xl,jmcatamney/gpdb,arcivanov/postgres-xl,lisakowen/gpdb,Postgres-XL/Postgres-XL,arcivanov/postgres-xl,50wu/gpdb,lisakowen/gpdb,lisakowen/gpdb,yazun/postgres-xl,lisakowen/gpdb,adam8157/gpdb,kmjungersen/PostgresXL,techdragon/Postgres-XL,lisakowen/gpdb,50wu/gpdb,lisakowen/gpdb,postmind-net/postgres-xl,techdragon/Postgres-XL,zeroae/postgres-xl,arcivanov/postgres-xl,adam8157/gpdb,xinzweb/gpdb,50wu/gpdb,jmcatamney/gpdb,postmind-net/postgres-xl,ashwinstar/gpdb,tpostgres-projects/tPostgres,Postgres-XL/Postgres-XL,adam8157/gpdb,ovr/postgres-xl,jmcatamney/gpdb,tpostgres-projects/tPostgres,ashwinstar/gpdb,jmcatamney/gpdb,snaga/postgres-xl,yazun/postgres-xl,50wu/gpdb,techdragon/Postgres-XL,greenplum-db/gpdb,yazun/postgres-xl,lisakowen/gpdb,tpostgres-projects/tPostgres,ovr/postgres-xl,adam8157/gpdb,oberstet/postgres-xl,pavanvd/postgres-xl