Assert that u_long is at least 64 bits if PAGE_SIZE is 32K.
Assert that u_long is at least 64 bits if PAGE_SIZE is 32K.

Suggested by: phk

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase