buffer.c assumes 4 byte longs.  However, the DEC Alpha has 8 byte longs. 
Patches will be available soon.  Quick hacks involve changing references to
integers of the form: 0xFFFFFFFFL to 0xFFFFFFFFFFFFFFFFL, 0xFFFFFFF0 to
0xFFFFFFFFFFFFFFF0, and 0xFFFFFFFC to 0xFFFFFFFFFFFFFFFC.