Some of our port-specific dynloader implementations are careful to define pg_dlsym() as returning a PGFunction pointer, not just any pointer-to-function.  But many are not.  Suppress compiler warnings on platforms that aren't careful by inserting explicit casts at the two call sites that didn't have a cast already.  Per Stefan.
Some of our port-specific dynloader implementations are careful to
define pg_dlsym() as returning a PGFunction pointer, not just any
pointer-to-function.  But many are not.  Suppress compiler warnings
on platforms that aren't careful by inserting explicit casts at the
two call sites that didn't have a cast already.  Per Stefan.

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