Currently on trunk, decimal float is configured by default for powerpc*-*-linux*. The testsuite check to decide whether to run the dfp tests checks whether sample code compiles, not whether it also links and runs. The runtime support isn't yet in although Ben Elliston submitted it quite a while ago (ping!). Therefore there are lots of dfp test failures showing up for powerpc*-*-linux* targets.
I'm working on testsuite changes to allow running the dfp tests, including those in directories other than gcc.dg/dfp, compile-only if decimal float support is in the compiler but not in the runtime. The patch is not quite ready yet. In the meantime if the failures are bothering anyone, configure with --disable-decimal-float. Janis
