ghc-7.10.1-rc1 build GC log messages

[Tuncer Ayaz]

On Thu, Dec 25, 2014 at 12:15 PM, Sergei Trofimovich wrote:
> On Wed, 24 Dec 2014 20:27:27 +0100 Tuncer Ayaz wrote:
>
> > Building ghc-7.10.1-rc1, I see the following new messages:
> >
> > HC [stage 1] compiler/stage2/build/Dwarf.p_o
> > <<ghc: 607994600 bytes, 145 GCs, 14478288/51516200 avg/max bytes
> > residency (8 samples), 103M in use, 0.00 INIT (0.00 elapsed), 0.88
> > MUT (1.10 elapsed), 0.76 GC (0.77 elapsed) :ghc>>
> >
> > Is this a debug log or normal from now on during a ghc build? I
> > don't mind, but I just wanted to make sure it's not a mistakenly
> > enabled debug flag somewhere.
>
> It is a normal flag and was present long ago on build system:
>     mk/config.mk.in:
>         GhcHcOpts=-Rghc-timing
> but happened to break a couple of releases ago.
> Was fixed in https://ghc.haskell.org/trac/ghc/ticket/8787
>
> You can disable it by putting
>         GhcHcOpts=
> in mk/build.mk.

I see.