Lout 3.35 on DOS (DJGPP)

[Robert Riebisch]

Hi!

I'm trying to build a new version of Lout using the DJGPP 2.03p2 + GCC 4.1.2 
environment.

Is any of these warnings really bad?
***
z04.c: In function 'NewToken':
z04.c:45: warning: comparison is always true due to limited range of data type
z06.c: In function 'Parse':
z06.c:1513: warning: comparison is always true due to limited range of data type
z07.c: In function 'CopyObject':
z07.c:319: warning: comparison is always true due to limited range of data type
z07.c:330: warning: comparison is always true due to limited range of data type
z12.c: In function 'MinSize':
z12.c:395: warning: comparison is always true due to limited range of data type
z12.c:436: warning: comparison is always true due to limited range of data type
z29.c: In function 'InsertSym':
z29.c:341: warning: comparison is always true due to limited range of data type
z37.c: In function 'FontRead':
z37.c:673: warning: comparison is always false due to limited range of data type
z37.c: In function 'FontChange':
z37.c:1428: warning: comparison is always false due to limited range of data 
type
z44.c: In function 'EncloseInHcat':
z44.c:214: warning: comparison is always true due to limited range of data type
z46.c:411: warning: 'DebugOptimizedAcat' defined but not used
z48.c: In function 'PDFFont_AddFont':
z48.c:1045: warning: pointer type mismatch in conditional expression
z49.c:281: warning: 'ltab_debug' defined but not used
z50.c:536:1: warning: "PI" redefined
In file included from z50.c:30:
c:/djgpp/include/math.h:60:1: warning: this is the location of the previous 
definition
z50.c:266: warning: 'PrintComposite' defined but not used
***

Why does Lout redefine PI?

Nevertheless I built Lout `successfully', but it behaves `strange' sometimes. 
Adding
debugging switch `-dddio' together with `-r2' or `-r3' results in SIGSEGV exits.

Bfdsymify shows this trace:
***
Call frame traceback EIPs:
  0x0000950b .debug_frame+147, file c:/home/lout-3.35/z02.c, line 636
  0x00019209 .debug_info+6436, file c:/home/lout-3.35/z05.c, line 814
  0x0002140c .debug_info+646, file c:/home/lout-3.35/z06.c, line 821
  0x0001980b .debug_info+371, file c:/home/lout-3.35/z05.c, line 848
  0x0002140c .debug_info+646, file c:/home/lout-3.35/z06.c, line 821
  0x000075bb .debug_line+18, file c:/home/lout-3.35/z01.c, line 898
  0x00007792 main+132, file c:/home/lout-3.35/z01.c, line 971
  0x00118988 __crt1_startup+176, file crt1.c
***

Line 636 in `z02.c' reads:
  setword(WORD, res, file_pos, startpos, p-startpos);

Why does it blow?

Robert Riebisch
PS: Yes, I know Kein-Hong Man's port, but that was before `-r' was introduced.
-- 
BTTR Software
http://www.bttr-software.de/