Cannot build project under Windows 10 64-bit

[typedbyte]

As far as I see, the project (and thus, haskell-ide-engine) cannot be built on Windows 10 64-bit without problems. I build the package text-icu with the help of pacman as described here, but I keep running into a problem:

> stack build
haskell-lsp-0.1.0.0: configure (lib + exe)
Configuring haskell-lsp-0.1.0.0...
haskell-lsp-0.1.0.0: build (lib + exe)
Preprocessing library haskell-lsp-0.1.0.0...
[ 2 of 10] Compiling Language.Haskell.LSP.TH.ClientCapabilities ( src\Language\Haskell\LSP\TH\ClientCapabilities.hs, .stack-work\dist\ca59d0ab\build\Language\Haskell\LSP\TH\ClientCapabilities.o )
ghc.EXE: unable to load package `text-icu-0.7.0.1'
ghc.EXE: C:\Users\DevUser\AppData\Roaming\stack\snapshots\97ce3d2b\lib\x86_64-windows-ghc-8.0.2\text-icu-0.7.0.1-EllpGYmNw3bJ3FIJMPisuJ\HStext-icu-0.7.0.1-EllpGYmNw3bJ3FIJMPisuJ.o: unknown symbol `ucnv_getMaxCharSize_58'

--  While building package haskell-lsp-0.1.0.0 using:
      C:\Users\DevUser\AppData\Roaming\stack\setup-exe-cache\x86_64-windows\Cabal-simple_Z6RU0evB_1.24.2.0_ghc-8.0.2.exe --builddir=.stack-work\dist\ca59d0ab build lib:haskell-lsp exe:lsp-hello --ghc-options " -ddump-hi -ddump-to-file"
    Process exited with code: ExitFailure 1

My current stack version, if it is of any help:

Version 1.4.0, Git revision e714f1dd3fade19496d91bd6a017e435a96a6bcd x86_64 hpack-0.17.0

[wz1000]

Did you run stack exec ... and stack install text-icu in the haskell-ide-engine / haskell-lsp directory?

[wz1000]

Also, try bumping the resolver in stack.yaml (I'm sorry I can't be of much help since I don't run Windows)

[typedbyte]

These are the steps i did:

git clone https://github.com/alanz/haskell-lsp
cd haskell-lsp
stack exec -- pacman -Sy mingw64/mingw-w64-x86_64-icu
stack install text-icu
stack build

But the error remains. I also tried to use a newer resolver (--resolver nightly-2017-07-19), but without any success.

[alanz]

I think you need to check the stack/stackage/ghc issue trackers for this issue, it is not strictly a haskell-lsp issue, the library is not installing properly in your environment.

[alanz]

btw, I see the missing symbol is ucnv_getMaxCharSize_58. The release notes here state that it is upgraded to use version 53

Built and tested against ICU 53.

Perhaps try installing that version with pacman

[typedbyte]

Thanks for your help, I got it building, although not by using pacman. Here are the steps:

1. Download ICU4C for Windows 64-bit from the download page here. The newest version (59.1 at the time of writing, direct link here) is just fine.
2. Extract the archive to some location, lets say C:\icu.
3. Open a terminal, navigate to C:\icu\bin64
4. Make a symbolic link: mklink icudt.dll icudt59.dll
5. Make a symbolic link: mklink icuin.dll icuin59.dll
6. Make a symbolic link: mklink icuuc.dll icuuc59.dll
7. Then clone the repository and build it with some additional references to the extracted archive:

git clone https://github.com/alanz/haskell-lsp
cd haskell-lsp
stack build --extra-include-dirs="C:\icu\include" --extra-lib-dirs="C:\icu\lib64" --extra-lib-dirs="C:\icu\bin64"