Don't pass --build-id by default.

[Hal Finkel via cfe-commits]

----- Original Message -----
> From: "Rafael Espíndola via cfe-commits" <cfe-commits at lists.llvm.org>
> To: "cfe-commits cfe" <cfe-commits at lists.llvm.org>
> Sent: Thursday, June 2, 2016 5:55:25 PM
> Subject: Don't pass --build-id by default.
> 
> We do it just because gcc in some distributions do it.
> 
> I can see why --build-id is useful for distributions, but given the
> cost on day to day edit+build cycles, any distro using clang should
> really just pass -Wl,--build-id in rpmbuild (or corresponding tool).
> 
> Even upstream gcc is not as aggressive as current clang. It has a
> --enable-linker-build-id configure option and it defaults to false.

This is going to break a lot of my local rpm packaging scripts, and I suspect the same is true for others. This is not a huge deal, but I wonder if we should emulate GCC is this regard and provide some CMake option to keep the current behavior?

Thanks again,
Hal

> 
> Cheers,
> Rafael
> 
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-- 
Hal Finkel
Assistant Computational Scientist
Leadership Computing Facility
Argonne National Laboratory