Need help with the dmd package on NixOS

[Thomas Mader]

On Friday, 11 May 2018 at 04:27:20 UTC, Thomas Mader wrote:
> My suspicion about the switch to glibc 2.27 being the problem 
> was wrong.
> I did a very timeconsuming bisection and found the problem 
> commit to be the one which bumped binutils to 2.30.

Can somebody help me to answer the question from 
https://sourceware.org/bugzilla/show_bug.cgi?id=23199#c4 please.
The object is created by the dmd backend but where in the code is 
binutils used?