I think the issue that folks are concerned about is that they have a package which is a combination of: platform-independant python/perl code binary loadable python/perl module (.so file) which they cannot run on the 64-bit perl/python because they only have a 32-bit .so file. They seem to be ignoring the possiblity of shipping .so files for all of the platforms they want to be able run on -- that is you could have the ix86, the x86_64, and maybe sparc_solaris versions of the .so with your package so that you could run it all three places... Marc Jaroslaw Polok wrote: > Hi Michel > > I still fail to understand what problem are you trying > to solve here ....: > > Either the application in question can be ported to > 64 bit (so no problem ..) or not: then why to run it > on an 64 bit system in first place ? > > SL exists in both 32 and 64 bit variants ... > > Cheers > > Jarek > > __ > ------------------------------------------------------- > _ Jaroslaw_Polok ___________________ CERN - IT/FIO/LA _ > _ http://home.cern.ch/~jpolok ___ tel_+41_22_767_1834 _ > _____________________________________ +41_78_792_0795 _