Stage1Only

[Trevor Elliott]

Hi Ian,

I've seen this ticket (see [1]), and stage=1 only worked if I explicitly 
disabled building packages like ghc, and the tools with the stage 1 
compiler.  This seemed reasonable, as I only wanted to build a cross 
compiler, not a toolchain for my target.

Additionally, I found that the RTS would never get built as a dependency 
for ghc-prim when using stage=1. The ghc-prim package only builds 
dist-boot and dist-install variants, and the RTS only ever builds a dist 
variant.  When dependencies are generated in build-package-way for 
ghc-prim, the variable rts-1.0_dist-install_$(way)_LIB expands to "", 
and ghc-prim builds without forcing the RTS to also build.

I've fixed this by adding a dist-install alias (listed below) in 
rts/ghc.mk, as well as adding $$($1_$2_$3_DEPS_LIBS) to the dependencies 
of the static archive rule in rules/build-package-way.mk.

 > rts-$(rts_VERSION)_dist-install_$1_LIB = $$(rts_$1_LIB)

I have some other changes that make Stage1Only work as expected, and 
would be happy to submit a patch if it's desired functionality.

Thanks!

--trevor

[1] http://www.haskell.org/pipermail/ghc-devs/2013-April/001002.html

On Fri 12 Apr 2013 05:58:40 AM PDT, Ian Lynagh wrote:
> On Fri, Apr 12, 2013 at 02:51:44PM +0200, Gabor Greif wrote:
>>
>> Apparently all_compiler depends on all_compiler_stage2 currently,
>> which it should not, given $(Stage1Only)=="YES".
>
> See http://hackage.haskell.org/trac/ghc/ticket/7639#comment:5
>
>
> Thanks
> Ian
>

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