Rebuilding ghc

[Dominic Steinitz]

Simon Peyton-Jones wrote:
> | Where do I put -fno-ds-multi-tyvar so that the build system knows
> to use | it? I'm going to try build.mk. | | Ok that didn't work and I
> couldn't find anything about | -fno-ds-multi-tyvar in the
> documentation.
> 
> Yes, in GhcLibHcOpts in build.mk is a good place.  The flag isn't
> documented because it's a debug-only flag that I threw in so that I
> can measure the effect of this particular desugaring change.  It's
> not really intended for users -- hard to explain just what it does.
> 
> In any case I'm just about to push a patch which fixes the original
> problem and makes the flag unnecessary for your purposes.
> 

Thanks. I put the flag in the right place and got further but see below.

Dominic.

PS I appreciate all the help I'm getting.

> ../compiler/ghc-inplace -H32m -O2 -fasm -Rghc-timing -optc-O2 -I../includes -I. -Iparallel -Ism -DCOMPILING_RTS -package-name rts -fvia-C -static  -I../gmp/gmp uild -I../libffi/build/include -I. -dcmm-lint     -c PrimOps.cmm -o PrimOps.o
> PrimOps.cmm:945:0: unknown macro: RET_NNNN
> <<ghc: 53221772 bytes, 4 GCs, 102400/102400 avg/max bytes residency (1 samples)  32M in use, 0.00 INIT (0.00 elapsed), 0.09 MUT (0.13 elapsed), 0.01 GC (0.01 e apsed) :ghc>>
> make[1]: *** [PrimOps.o] Error 1
> make: *** [stage1] Error 1