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Bug#567533: -O interferes with debugging on amd64 (oprofile doesn't like -fomit-frame-pointers)

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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