Don't refer to AF_UNIX in code not protected with HAVE_UNIX_SOCKETS.
Don't refer to AF_UNIX in code not protected with HAVE_UNIX_SOCKETS.

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