[Haskell-iPhone] ghc-iphone and TemplateHaskell

[Stephen Blackheath [to GHC-iPhone]]

Stefan,

The reason why Template Haskell doesn't work on the current GHC-iPhone
compiler is because when I tweaked the build to cross compile, I just
took the Stage 1 compiler as the cross compiler.  And, by default, the
stage 1 compiler doesn't support TH.

It is most likely just a matter of throwing a switch in the build
somewhere.  I believe the TH code is interpreted, so the ARM back end
should not be an issue.  Unfortunately, fixing this is nowhere near my
priority list at the moment.

If you want to attempt it, I've given detailed instructions on how to
build the compiler, so you should have no trouble.  It builds well on
Snow Leopard, and takes about an hour or so.  I'll help with answering
questions as much as I can.


Steve

On 20/01/11 13:22, Stefan Kersten wrote:
> hi,
> 
> i'm trying to compile a project with ghc-iphone (ghc-iphone-binary-1.6-sdk-4.2),
> but some libraries (e.g. data-accessor-template) fail with an error like this:
> 
> Template Haskell bracket illegal in a stage-1 compiler
> 
> any ideas how to solve this problem?
> 
> many thanks,
> <sk>
> 
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