That way it would match GNU_USER_TARGET_LINK_SPEC in i386/gnu-user.h,
where -dynamic-linker appears within %{!static ... %{!shared ...}}.

So, could you do:

  (define patched-gcc
    (package
      (inherit gcc-4.8)
      (sources (origin (inherit (package-source gcc-4.8))
                 (patches ...)))))

build it, and then use it in the failed glibc build tree to rebuild
ld.so?


There are ways we could have worked around it, for instance by adding:

  (setenv "GUIX_LD_WRAPPER_DISABLE_RPATH" "yes")

in the glibc recipe.

But I think it’s better to understand what’s going on.

Thanks,
Ludo’.