[Python-bugs-list] [ python-Bugs-451890 ] Building with Large File Support fails

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Bugs item #451890, was opened at 2001-08-16 18:00
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Category: Build
Group: Python 2.2
Status: Open
Resolution: None
Priority: 5
Submitted By: Gerhard Häring (ghaering)
Assigned to: Nobody/Anonymous (nobody)
Summary: Building with Large File Support fails

Initial Comment:
(At least) on Linux, building 2.2-HEAD fails when 
building with Large File Support. In 
Objects/fileobject.c function _portable_ftell line 
262.


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>Comment By: Guido van Rossum (gvanrossum)
Date: 2001-08-17 03:55

Message:
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Whoa.  Interesting. Which Linux version is this?

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Comment By: Martin v. Löwis (loewis)
Date: 2001-08-17 00:21

Message:
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This fails because in glibc, fpos_t contains an mb_state 
field, so that on restoring the file position, the 
multibyte encoding state of the file can be restored.

I see two solutions here:
- Python could give up the guarantee that the ftell result 
is a number, and return an object that embeds the fpos_t.
- Python could give up that guarantee that ftell/fseek 
works in all cases, and only use ftell(o), which should 
always return a number (atleast in Posix). If that 
approach is taken, an additional fgetpos/fsetpos call may 
be appropriate.


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