Mark some intermediate targets as .PRECIOUS, to replace the recently removed .SECONDARY target.  This makes experimentation with the PDF builds easier.
Mark some intermediate targets as .PRECIOUS, to replace the recently removed
.SECONDARY target.  This makes experimentation with the PDF builds easier.

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