Hi I'm trying to configure and install the gcc 3.2.3 on AIX platform (OS 4.3). After configuring the gcc with option --enable-threads=posix, and installing the compiler, when I check the compiler by executing: g++ -v, it shows the following messages: Configured with: ../gcc-3.2.3/configure --enable-threads=posix --prefix=/cae/3rdpartty Thread model: aix gcc version 3.2.3 Is it supposed to show Thread model: posix instead of aix. After this, when I'm using functions sched_get_priority_min, sched_get_priority_max from thread, it returns error: "Function not implemented POSIX" Am I missing something when installing gcc 3.2.3 on the AIX platform? Thanks & Regards Long