Remove -O2 for linux/alpha, make -O.
Remove -O2 for linux/alpha, make -O.

tangp3/gpdb,yuanzhao/gpdb,xuegang/gpdb,50wu/gpdb,zaksoup/gpdb,zeroae/postgres-xl,lpetrov-pivotal/gpdb,xinzweb/gpdb,yazun/postgres-xl,Chibin/gpdb,ashwinstar/gpdb,arcivanov/postgres-xl,cjcjameson/gpdb,rvs/gpdb,CraigHarris/gpdb,foyzur/gpdb,janebeckman/gpdb,rvs/gpdb,Chibin/gpdb,snaga/postgres-xl,janebeckman/gpdb,edespino/gpdb,ahachete/gpdb,foyzur/gpdb,lisakowen/gpdb,lintzc/gpdb,royc1/gpdb,janebeckman/gpdb,lintzc/gpdb,ahachete/gpdb,lintzc/gpdb,50wu/gpdb,rubikloud/gpdb,Quikling/gpdb,postmind-net/postgres-xl,janebeckman/gpdb,kaknikhil/gpdb,edespino/gpdb,Postgres-XL/Postgres-XL,ahachete/gpdb,jmcatamney/gpdb,postmind-net/postgres-xl,Postgres-XL/Postgres-XL,ahachete/gpdb,royc1/gpdb,adam8157/gpdb,xuegang/gpdb,xuegang/gpdb,foyzur/gpdb,kaknikhil/gpdb,adam8157/gpdb,chrishajas/gpdb,atris/gpdb,Quikling/gpdb,lisakowen/gpdb,kmjungersen/PostgresXL,Chibin/gpdb,kaknikhil/gpdb,greenplum-db/gpdb,royc1/gpdb,randomtask1155/gpdb,cjcjameson/gpdb,rvs/gpdb,royc1/gpdb,zeroae/postgres-xl,kmjungersen/PostgresXL,arcivanov/postgres-xl,xuegang/gpdb,Chibin/gpdb,Quikling/gpdb,oberstet/postgres-xl,yazun/postgres-xl,greenplum-db/gpdb,xuegang/gpdb,50wu/gpdb,lpetrov-pivotal/gpdb,rubikloud/gpdb,lpetrov-pivotal/gpdb,techdragon/Postgres-XL,jmcatamney/gpdb,tangp3/gpdb,tangp3/gpdb,ashwinstar/gpdb,50wu/gpdb,tpostgres-projects/tPostgres,lpetrov-pivotal/gpdb,foyzur/gpdb,0x0FFF/gpdb,postmind-net/postgres-xl,greenplum-db/gpdb,Chibin/gpdb,edespino/gpdb,50wu/gpdb,0x0FFF/gpdb,edespino/gpdb,jmcatamney/gpdb,zaksoup/gpdb,greenplum-db/gpdb,zaksoup/gpdb,snaga/postgres-xl,xuegang/gpdb,lintzc/gpdb,atris/gpdb,atris/gpdb,janebeckman/gpdb,adam8157/gpdb,adam8157/gpdb,CraigHarris/gpdb,snaga/postgres-xl,atris/gpdb,randomtask1155/gpdb,greenplum-db/gpdb,yuanzhao/gpdb,royc1/gpdb,Chibin/gpdb,janebeckman/gpdb,oberstet/postgres-xl,janebeckman/gpdb,xinzweb/gpdb,lisakowen/gpdb,cjcjameson/gpdb,ashwinstar/gpdb,greenplum-db/gpdb,yazun/postgres-xl,arcivanov/postgres-xl,Quikling/gpdb,Chibin/gpdb,chrishajas/gpdb,yuanzhao/gpdb,atris/gpdb,pavanvd/postgres-xl,chrishajas/gpdb,edespino/gpdb,postmind-net/postgres-xl,chrishajas/gpdb,Postgres-XL/Postgres-XL,kaknikhil/gpdb,Quikling/gpdb,kaknikhil/gpdb,atris/gpdb,rubikloud/gpdb,pavanvd/postgres-xl,Quikling/gpdb,cjcjameson/gpdb,tangp3/gpdb,tangp3/gpdb,50wu/gpdb,tpostgres-projects/tPostgres,xuegang/gpdb,lisakowen/gpdb,tangp3/gpdb,50wu/gpdb,adam8157/gpdb,lisakowen/gpdb,janebeckman/gpdb,rubikloud/gpdb,CraigHarris/gpdb,foyzur/gpdb,oberstet/postgres-xl,jmcatamney/gpdb,royc1/gpdb,lisakowen/gpdb,Postgres-XL/Postgres-XL,kaknikhil/gpdb,rvs/gpdb,Quikling/gpdb,zeroae/postgres-xl,royc1/gpdb,ahachete/gpdb,chrishajas/gpdb,oberstet/postgres-xl,techdragon/Postgres-XL,CraigHarris/gpdb,rvs/gpdb,cjcjameson/gpdb,adam8157/gpdb,zaksoup/gpdb,snaga/postgres-xl,techdragon/Postgres-XL,yuanzhao/gpdb,edespino/gpdb,lpetrov-pivotal/gpdb,greenplum-db/gpdb,rvs/gpdb,randomtask1155/gpdb,randomtask1155/gpdb,foyzur/gpdb,zaksoup/gpdb,jmcatamney/gpdb,greenplum-db/gpdb,cjcjameson/gpdb,randomtask1155/gpdb,royc1/gpdb,kaknikhil/gpdb,kmjungersen/PostgresXL,ovr/postgres-xl,Quikling/gpdb,rvs/gpdb,edespino/gpdb,xinzweb/gpdb,rubikloud/gpdb,cjcjameson/gpdb,techdragon/Postgres-XL,foyzur/gpdb,rvs/gpdb,yazun/postgres-xl,tpostgres-projects/tPostgres,rvs/gpdb,ahachete/gpdb,lintzc/gpdb,xinzweb/gpdb,edespino/gpdb,yuanzhao/gpdb,pavanvd/postgres-xl,Chibin/gpdb,yuanzhao/gpdb,kaknikhil/gpdb,randomtask1155/gpdb,CraigHarris/gpdb,0x0FFF/gpdb,ovr/postgres-xl,xinzweb/gpdb,CraigHarris/gpdb,kmjungersen/PostgresXL,yuanzhao/gpdb,rubikloud/gpdb,xinzweb/gpdb,50wu/gpdb,ahachete/gpdb,zaksoup/gpdb,atris/gpdb,xinzweb/gpdb,ashwinstar/gpdb,arcivanov/postgres-xl,0x0FFF/gpdb,tpostgres-projects/tPostgres,tangp3/gpdb,randomtask1155/gpdb,jmcatamney/gpdb,janebeckman/gpdb,cjcjameson/gpdb,tpostgres-projects/tPostgres,zeroae/postgres-xl,janebeckman/gpdb,tangp3/gpdb,rvs/gpdb,ashwinstar/gpdb,Quikling/gpdb,lisakowen/gpdb,0x0FFF/gpdb,atris/gpdb,yuanzhao/gpdb,lpetrov-pivotal/gpdb,kmjungersen/PostgresXL,oberstet/postgres-xl,jmcatamney/gpdb,adam8157/gpdb,chrishajas/gpdb,xuegang/gpdb,Postgres-XL/Postgres-XL,zaksoup/gpdb,CraigHarris/gpdb,CraigHarris/gpdb,chrishajas/gpdb,Chibin/gpdb,xuegang/gpdb,ahachete/gpdb,ashwinstar/gpdb,ovr/postgres-xl,cjcjameson/gpdb,lintzc/gpdb,cjcjameson/gpdb,lisakowen/gpdb,zaksoup/gpdb,0x0FFF/gpdb,rubikloud/gpdb,jmcatamney/gpdb,chrishajas/gpdb,lpetrov-pivotal/gpdb,randomtask1155/gpdb,edespino/gpdb,adam8157/gpdb,yuanzhao/gpdb,lpetrov-pivotal/gpdb,pavanvd/postgres-xl,ovr/postgres-xl,arcivanov/postgres-xl,techdragon/Postgres-XL,yazun/postgres-xl,ashwinstar/gpdb,0x0FFF/gpdb,CraigHarris/gpdb,edespino/gpdb,kaknikhil/gpdb,ashwinstar/gpdb,Quikling/gpdb,lintzc/gpdb,foyzur/gpdb,pavanvd/postgres-xl,kaknikhil/gpdb,ovr/postgres-xl,rubikloud/gpdb,0x0FFF/gpdb,postmind-net/postgres-xl,lintzc/gpdb,zeroae/postgres-xl,arcivanov/postgres-xl,snaga/postgres-xl,xinzweb/gpdb,yuanzhao/gpdb,Chibin/gpdb,lintzc/gpdb