[Issue 879] support for --gc-sections

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=879

--- Comment #19 from Martin Nowak <code at dawg.eu> ---
(In reply to Martin Nowak from comment #18)
> I can also reference .minfo_beg/.minfo/.minfo_end in each ctor.

Actually this doesn't work with ld.gold because dmd only uses a single ctor per
DSO (COMDAT) and ld.gold will merge the ctors before checking their references.
So I only end up with the .minfo* sections of the first object file.

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