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Add note on Clang -gdwarf-aranges option to README #249

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Add note on Clang -gdwarf-aranges option to README #249

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Expand Up @@ -139,6 +139,11 @@ what I know).
If you are missing debug information, the stack trace will lack details about
your sources.

When using clang++ with libdw, it may be necessary to compile with
`-gdwarf-aranges` to make source locations visible. Libdw prefers to use a
`.debug_aranges` section for source location information, which clang++ doesn't
emit by default.

### Libraries to read the debug info

Backward supports pretty printed stack traces on GNU/Linux, macOS and Windows,
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