Fix build failure when not USE_READLINE.  Sergey E. Koposov
Fix build failure when not USE_READLINE.  Sergey E. Koposov

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