Commits on Nov 10, 2022

1. Use a DWARF version consistent with rustc …

   Rustc defaults to DWARF-2 on some targets, and DWARF-4 on others.
   However using -g with the C compiler yields whatever default version the
   C compiler prefers.
   
   One side effect is that the DWARF debug info shipped in some libraries
   with rustc itself (e.g. libcompiler_builtins and others) have recently
   switched to DWARF-5 as a side effect of upgrading the clang version
   used on rustc CI. (rust-lang/rust#98746)
   
   Ideally, the preferred DWARF version would be given by the rust compiler
   and/or cargo, but that's not the case at the moment, so the next best
   thing is something that aligns with the current defaults, although
   work in under way to add a rustc flag that would allow to pick the
   preferred DWARF version (rust-lang/rust#98350)

   

   glandium committed Nov 10, 2022
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