I'm trying to package that benefits significantly from link time optimization (-flto). But I can't get this to work. On non-Nix linux platforms the current trick is to substitute gcc-ar for ar, gcc-ranlib for ranlib.
I don't see how to do this in my nix expression. The gcc-ar binary is there: /nix/store/l8y2srrkp5fflwph7vq0gllj1k1ai17w-gcc-5.3.0/bin/gcc-ar But I don't know (1) how to refer to it rather than gcc-wrappers, and (2) whether that is a horrible idea to start with. Is there some better way to get -flto working under nix? Thanks, -Ryan
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