#R675: bug in win32 GUI (division by zero)

#R675: bug in win32 GUI (division by zero)

(from <Someone>)

>The tile size is actually set just once in mhmap.c so validation can be done
>in one place. The patch is attached.
>
><email deleted>
on Sunday, March 24, 2002 at 16:15:50
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mailversion: 1.10

nhversion: 3.4.0

nhfrom: 3.4.0 Official binary release for Windows 95/98/NT/2000/Me/XP
(nh340win.zip)

hardware: 1 Ghz AMD Athlon, 512 MB RAM etc. etc.
I don't think that the hardware is related to the problem because I found it.

software: I used Win 98 (1st edition) and MS VC++ 6.0 to find/fix the bug in
Nethack 3.4.0.

comments: steps to crash: start nethackw.exe - start a game - select "fit to
sreen" in the map menue - rezize the map until it is very very small -> crash