Description of problem:
Reading a save file on x86_64 causes internal data corruption.  The problem is
in the state.c:rs_read_long() function which tries to read 4 bytes of data into
an uninitialized long pointer.

Instead, it should read the 4 bytes into an int and then cast to a long.

Version-Release number of selected component (if applicable):
rogue-5.4.2-8.fc7.x86_64


How reproducible:
Always

Steps to Reproduce:
1. Start a new game
2. kill one or two monsters
3. Save the game and exit
4. Start the game again from the save file (rogue -r)
5. Look at your experience points  

Actual results:
experience point counter is corrupted and displays an absurdly large value.

Expected results:
The same amount of experience is displayed as what was shown before the game was
saved.