Package: g++
-O is turning on -fomit-frame-pointers on amd64, which interferes with
debugging performance issues (because it prevents oprofile from
generating callgraph information). "man g++" says
-O also turns on -fomit-frame-pointer on machines where doing so
does not interfere with debugging.
, but here it is turning it on where is *does* interfere with debugging.
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