Hi Roel, It is about this old bug#40237 [1]
1: <http://issues.guix.gnu.org/issue/40237> On Thu, 26 Mar 2020 at 11:29, Roel Janssen <r...@gnu.org> wrote: > I am trying to build a package with glibc-2.28. So my native-inputs looks > like > this: > -------------- > (native-inputs > `(("gcc-toolchain" ,(make-gcc-toolchain gcc-5 glibc-2.28)))) > -------------- > > > When building this custom gcc-toolchain, it fails with: Is it still the case? Well, could you provide more information about your use case? Cheers, simon