[cfe-dev] Building clang

[David Blaikie via cfe-dev]

GNU ld probably is a bit of a bottleneck here - try gold or lld if you can.

But also what Dimitry said - about reducing the number of link steps.
Also depends if you build with debug info - that adds a lot. Using
Split DWARF can help ease that a bit.

On Sat, Aug 15, 2020 at 3:28 AM denis gantsev via cfe-dev
<cfe-dev at lists.llvm.org> wrote:
>
> Hi,
> I wanted to play with clang, and was trying to build it according to instructions (https://clang.llvm.org/get_started.html), with GCC 5.5 and GNU ld 2.26.1, running my linux 5.6.7.
>
> However, the build regularly fails, running out of memory (my laptop has 12Gb RAM). I tried with both "Unix Makefiles" and "Ninja 1.7.1". I did specify explicitly "DLLVM_ENABLE_PROJECTS=clang".
>
> Is it expected to consume that much memory during build?
>
> Regards,
> Denis
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