[power-ieee128] What should the math functions be annotated with?

[Thomas Koenig]

Hi Jakub,

> Note, we want to test both building gcc on ppc64le with older glibc
> and newer glibc (and that libgfortran will have the same ABI between both
> and one can move gcc including libgfortran and libquadmath from the older
> glibc setup to newer and make -mabi=ieeelongdouble work in Fortran too).

Using an older glibc is no problem - we can use gcc135 on the compile
farm for that.

As far as the other options you outlined, I think I'll defer to people
who know more about setting up libraries than I do. I have root access,
but chances are I would just mess up the virtual machine :-)

Regards

	Thomas