Trying to crosscompile for POWER9

[Tobias Platen]

Hello,

When I try to compile GUIX for POWER9 an old version of GCC is used.
How do I use the gcc version used for cross compiling.

./pre-inst-env guix build --target=powerpc64le-linux hello

checking if powerpc64le-linux-gcc supports
binary128 floating point type... no
checking if the target machine is at least POWER8... yes

configure: error: ***
binary128 floating point type (GCC >= 6.2) is required on powerpc64le.

Tobias "Tomoko" Platen