linux / solaris vs other *nix file handling in sal/osl/unx/file.c

[Riccardo Magliocchetti]

Hello,

does anyone know why linux and solaris are using pread / pwrite syscalls 
while other unixes are using read + lseek? The code is at least 
FileHandle_Impl::writeAt which AFAIU is the base for the osl_* file 
functions.

Googling a bit shows that postgresql discussed the issue in 2003 and at 
the time the only unix missing pread was HPUX 10.20 
http://archives.postgresql.org/pgsql-patches/2003-02/msg00205.php

Don't know how relevant is HPUX for libreoffice, hope 2013 is not the 
year of CDE on desktop :)

If the idea is sound i can cook a patch, but i'd like to have some 
feedback from *BSD / MacOS X people that will compile the new code path.

For reference this distinction got introduced a bit more than 3 years 
ago in b76cb86e

thanks,
riccardo