>>>>> Perry Smith writes: Perry> The call to _restf14 is not explicit so I assume the compiler is Perry> generating it for some reason. Yes, because one of the exception handling support functions can clobber all registers, but also can return upon error, so all registers need to be restored -- including FP registers. Perry> I believe the soft-float is the route I want to go. Right now, I Perry> took the t-aix52 file and changed it to have: Perry> MULTILIB_OPTIONS = pthread maix64 msoft-float Perry> MULTILIB_DIRNAMES = pthread ppc64 soft-float Perry> I could not find a way to do this via configure options. I'm Perry> rebuilding the whole compiler at this point. I didn't know any other Perry> way to get the new versions of the libraries to be created. Most users do not want or need that configuration because all AIX systems have floating point hardware support. David