Cannot have GHC in ARMv6 architecture

[Karel Gardas]

On 09/ 9/15 04:21 PM, jmcf125 at openmailbox.org wrote:
>> So ghc-stage1 is working. Good! Now just to find why your base is broken,
>> please rebuild ghc completely and this time does not use any -j 5 option.
>> It'll use just one core, but will stop on the first error. Let's see how far
>> you get.
> Ah. Alright, it took a while longer.
>
>   $ ./configure --target=arm-linux-gnueabihf --with-gcc=arm-linux-gnueabihf-gcc-sysroot --enable-unregisterised && make
> (...)
> "inplace/bin/ghc-stage1" -hisuf hi -osuf  o -hcsuf hc -static  -H64m -O0    -this-package-key ghcpr_8TmvWUcS1U1IKHT0levwg3 -hide-all-packages -i -ilibraries/ghc-prim/. -ilibraries/ghc-prim/dist-install/build -ilibraries/ghc-prim/dist-install/build/autogen -Ilibraries/ghc-prim/dist-install/build -Ilibraries/ghc-prim/dist-install/build/autogen -Ilibraries/ghc-prim/.    -optP-include -optPlibraries/ghc-prim/dist-install/build/autogen/cabal_macros.h -package-key rts -this-package-key ghc-prim -XHaskell2010 -O -fllvm  -no-user-package-db -rtsopts      -odir libraries/ghc-prim/dist-install/build -hidir libraries/ghc-prim/dist-install/build -stubdir libraries/ghc-prim/dist-install/build   -c libraries/ghc-prim/./GHC/CString.hs -o libraries/ghc-prim/dist-install/build/GHC/CString.o
> You are using a new version of LLVM that hasn't been tested yet!
> We will try though...

^ OK you can see this.

> opt: /tmp/ghc23881_0/ghc_1.ll:7:6: error: unexpected type in metadata definition
> !0 = metadata !{metadata !"top", i8* null}
>       ^
> libraries/ghc-prim/ghc.mk:4: recipe for target 'libraries/ghc-prim/dist-install/build/GHC/CString.o' failed
> make[1]: *** [libraries/ghc-prim/dist-install/build/GHC/CString.o] Error 1
> Makefile:71: recipe for target 'all' failed
> make: *** [all] Error 2
>
> This is weird, I think I'm not even using LLVM.

This is not weird at all! GHC does not provide ARM NCG and so it is 
using LLVM if you compile ARM registerised build.

So what about to start with the least pain and install supported LLVM 
version?

Cheers,
Karel