Support 32-bit operating systems

[andrewthad]

GHC makes it somewhat difficult to write platform-portable code once you start explicitly unboxing Word, Word64, etc. I need to make things portable anyway so that I can start using this as a dependency in other libraries.

[chessai]

Use the i386 shell.nix i gave you

[andrewthad]

I was looking around for that but couldn't find it. Is that on github or in a gist somewhere?

[chessai]

Its in one of your repos as shell-i386.nix, i think.

[andrewthad]

Oh, it's shell-i686.nix, and it was in primitive-unaligned.

[Heinrich-CH]

Hello,
Is there a solution to this for non-nix users?
I was having similar issues with the wide-word project, but an unofficial patch fixed it.
See:
erikd/wide-word#38

I currently get the following (ghc 8.8.3, armv7h on a dynamically-linked system):

Building library for bytesmith-0.3.6.0..
[ 7 of 10] Compiling Data.Bytes.Parser.Latin ( src/Data/Bytes/Parser/Latin.hs, dist/build/Data/Bytes/Parser/Latin.dyn_o )

src/Data/Bytes/Parser/Latin.hs:544:57: error:
    * Couldn't match expected type `Exts.Word64#'
                  with actual type `Word#'
    * In the first argument of `W64#', namely `a'
      In the expression: W64# a
      In the expression: (# W64# a, b, c #)
    |
544 | upcastWord64Result (# | (# a, b, c #) #) = (# | (# W64# a, b, c #) #)
    |                                                         ^

src/Data/Bytes/Parser/Latin.hs:989:52: error:
    * Couldn't match expected type `Exts.Word64#'
                  with actual type `Word#'
    * In the first argument of `W64#', namely `a'
      In the expression: W64# a
      In the expression: (# W64# a, b, c #)
    |
989 |       (# | (# a, b, c #) #) -> (# s1, (# | (# W64# a, b, c #) #) #)
    |                                                    ^

Best regards

[andrewthad]

Since wide-word has historically not supported 32-bit platforms, and bytesmith depends on wide-word, there has never been any point in attempting to support 32-bit platforms. However, it looks like this might be changing. If wide-word gets a release that works on 32-bit platforms, I can make bytesmith build on them as well. It shouldn't be that difficult.