To enable building I had to disable Qemu builds, which were unused anyways. I do have a partial fix for the Qemu builds around, I'll push that as starting point once we're done here.
Rasmus has confirmed that a toolchain built with this config works on their RHEL6 setup.
Build all toolchains on CentOS6 to link against the oldest glibc users of this toolchain might have installed.
The sources for the Docker image used to build the toolchains can be found at https://github.com/lowRISC/lowrisc-it/tree/master/docker/lowrisc-base-centos6.
To enable building I had to disable Qemu builds, which were unused anyways. I do have a partial fix for the Qemu builds around, I'll push that as starting point once we're done here.
Rasmus has confirmed that a toolchain built with this config works on their RHEL6 setup.