Compilation time

Ben Gamari ben at
Fri Jul 7 16:28:13 UTC 2017

Ryan Scott < at> writes:

> Another things to note about 8.2 build times is that a bulk of the time is
> probably being spent during the linking phase. This is because GHC 8.2 has
> switched over to split-sections by default, but unfortunately, old versions
> of the BFD linker take a long time to link code that uses split-sections
> (see the discussion at [1]). There is ongoing work (which should hopefully
> land before the final 8.2 release) to use gold instead of BFD as the
> default linker when available, which will reduce linking times dramatically.
Indeed it has already landed. See #13541.

In short, ./configure will now choose to use or ld.lld if
available (although this can be disabled using the --disable-ld-override
configure flag).


- Ben

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