Re: Building GHC 8.4.3 Cross-Compiler Linux x86 -> Linux ARM

Hi Michael, any reason you want to build specifically 8.4.3? And any specific reason you want to use 8.0.2 to build it? Anyway, you likely don't want to build unregistered, but use the llvm backend. You want to set the BuildFlavour to quick-cross, e.g. with sed -E "s/^#BuildFlavour[ ]+= quick-cross$/BuildFlavour = quick-cross/" < mk/build.mk.sample > mk/build.mk Once you have your compiler built, you'll likely want to use toolchain wrapper[1] to make things a bit easier. If you just want to try to build some simple code for a raspberry pi, you could also try the experimental pre-built cross compilers from[2] Cheers, Moritz -- [1]: https://github.com/zw3rk/toolchain-wrapper [2]: http://hackage.mobilehaskell.org/

On May 28, 2019, at 5:25 AM, Ben Gamari wrote:

Michael Dunn writes:

...

Ben,

I saw that you responded to my question in #ghc on freenode last weekend (mdunnio), and I missed your message.

Michael,

I would be happy to help. I'm CCing ghc-devs so others may benefit from this discussion.

...

I'm trying to build a cross compiler using ghc 8.0.1 to build ghc 8.4.3. You mentioned that you have experience.

Have you tried on newer versions of GHC? I've looked at a few guides (mostly https://gitlab.haskell.org/ghc/ghc/wikis/building/cross-compiling) and they all are using pre-8.0. The problem I'm running into now just seems to be that I can't build the base packages (ghc-pkg specifically).

My configure command is:

./configure --target=arm-linux-gnueabihf CC=arm-linux-gnueabihf-gcc --enable-unregisterised

This is helpful to know but you didn't specify what your `make` invocation looks like or your mk/build.mk. It would be very helpful to know both of these things.

Presumably you at least had to set `HADDOCK_DOCS=NO` since otherwise the build system fails very early on.

Cheers,

- Ben _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs