Due to BIND 8.1.1, my Solaris 2.5.1 machine doesn't define MAXHOSTNAMELEN... so, add a check that basically says if it isn't defined, set it to 256...
Due to BIND 8.1.1, my Solaris 2.5.1 machine doesn't define MAXHOSTNAMELEN...
so, add a check that basically says if it isn't defined, set it to 256...

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