Enable the use of multiple CPUs/cores when building on MSVC. This only affects the C compiler step - we still only build one target at a time.
Enable the use of multiple CPUs/cores when building on MSVC. This only
affects the C compiler step - we still only build one target at a
time.

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