[patch] EXPORTED_SYMBOL_FILE support for cmake

[Nico Weber]

Oh, looks like lto had half an implementation for Windows :-) This removes
the Windows-specific code, since the general code should cover this (but
Windows is as I said completely untested).


On Fri, Dec 27, 2013 at 10:05 PM, Nico Weber <thakis at chromium.org> wrote:

> Hi,
>
> while trying to port the dead code stripping patch (r198087) to cmake, I
> noticed that the cmake build has no real support for EXPORTED_SYMBOL_FILE –
> libclang in clang had half an implementation for Darwin with a FIXME for
> other platforms, tools/gold had half an implementation for BFD ld…
>
> This patch tries to add real support – CMakeLists.txt just need to set
> LLVM_EXPORTED_SYMBOL_FILE and things should Just Work.
>
> I've only tested this on OS X, and I don't have a ton of cmake experience.
> Please review, and / or patch this in and build and let me know how it goes
> (especially on linux or windows).
>
> Nico
>
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