Add Makefile.global to lextest makefile.
Add Makefile.global to lextest makefile.

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