Have Makefile autoconf'd according to whether the system  has readline and associated libraries...
Have Makefile autoconf'd according to whether the system  has
readline and associated libraries...

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