Second try at fixing DLLIMPORT problem for pg_crc.h on Cygwin.
Second try at fixing DLLIMPORT problem for pg_crc.h on Cygwin.

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