On contrib there is hacklibstdc++-2.96-0.7mdk.i586.rpm while on cooker there is libstdc++-2.96-0.22mdk.i586.rpm One should think the second one is the current version, and the first one is an old doublon. But the first also provide libstdc++-libc6.1-2.so.3, that is needed by Xtheather... So, which one should i use ? -- Guillaume Rousse Murphy's law : If anything can go wrong, it will. O'Tool's commentary : Murphy was an optimist.