Ticket #1927: patch

Portfile

@@ -134 +134 @@
                         to your ${prefix}/etc/rc.conf"
                 ui_msg "\nTo tweak your DBMS, consider increasing kern.sysv.shmmax\
                         by adding an increased kern.sysv.shmmax .. to /etc/sysctl.conf"
+        ui_msg "\nIt is recommended that you increase the amount of shared memory\
+            available to PostgreSQL by adding the following lines to\
+            /etc/sysctl.conf:\n\
+            kern.sysv.shmmax=167772160\n\
+            kern.sysv.shmmin=1\n\
+            kern.sysv.shmmni=64\n\
+            kern.sysv.shmseg=16\n\
+            kern.sysv.shmall=65536\n\
+            \nA reboot will be required for these settings to take effect."
         }
 }