Do you know when Suse SLES 12 gets an updated compiler? As far as I know, compilers are usually not replaced in a SLES release, until a next major release is announced. That means that we have to apply the -fpermissive flag (which is pretty useful in other cases) or to apply our own workaround (sizeof(long) == 8 ? 8 : sizeof(long)). In other words: that may take years in worst case. Is there a possibility to request the SLES team to provide an update to the compiler to fix this issue? Regards, Kees