> I am trying to compile PostgreSQL 8.3.8 on AIX 5.3 TL9 (64 bits).
> The ".configure" has been executed with success without any 
> error but the compilation of PostgreSQL with "gmake" fails. 
> 
> Please find below the errors I get : 
> 
> 
>       In file included from psqlscan.c:2385:
>       /usr/include/unistd.h:171: error: conflicting types for 'lseek64'
>       /usr/include/unistd.h:169: error: previous declaration of 'lseek64' was 
> here
>       In file included from /usr/include/unistd.h:744,
>                        from psqlscan.c:2385:
[...]
>       
> 
> I read on the PostgreSQL.fr's forum that this error is linked 
> to large files in 64 bits system, allowing to read / write 
> files of 2 GB and over.
> I also read that I can use the "-disable-largefile" while I 
> launched ".configure" but I don't really understand the problem. 
> If PostgreSQL can't use such files, except for trace logs, 
> why the compilation fails on large files ? 

Is this a 32-bit or a 64-bit build?

How exactly did you call configure and make?

After configuring, what do you get when you run
   grep -i large config.log
in the PostgreSQL directory?

And what is the result of
   grep -i large include/pg_config.h

Yours,
Laurenz Albe

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