Cannot build gRPC in a pure nix environment

[tjhunter]

Hello,
I was trying to compile gRPC on my computer (a recent version of Ubuntu). It looks like the current nix instructions do not express all the proper dependencies (or I am not using the proper nix channels).

Here is my setup:

• nix --version nix (Nix) 2.0.2
• nix-channel --list:
  nixpkgs https://nixos.org/channels/nixpkgs-unstable
• grpc-haskell revision: 55f51eaa24e8a4dfeb1b477b2fe46a2d79652ca8 (latest master)

When launching the nix shell with nix-shell release.nix --pure -A grpc-haskell.env, here is what I get:

$ stack setup
bash: stack: command not found

$ cabal update
Downloading the latest package list from hackage.haskell.org

$ cabal configure --enable-tests
Resolving dependencies...
Configuring grpc-haskell-0.0.0.0...
Warning: 'include-dirs: include' directory does not exist.
cabal: The program 'c2hs' is required but it could not be found.

I tried to also download and run the latest release of stack, but ghc and gcc do not seem to find GMP in that case:

The GHC located at /home/tjhunter/.stack/programs/x86_64-linux/ghc-8.0.2/bin/ghc failed to compile a sanity check. Please see:

    http://docs.haskellstack.org/en/stable/install_and_upgrade/

for more information. Exception was:
Running /home/tjhunter/.stack/programs/x86_64-linux/ghc-8.0.2/bin/ghc /tmp/stack-sanity-check11158/Main.hs -no-user-package-db in directory /tmp/stack-sanity-check11158/ exited with ExitFailure 1

[1 of 1] Compiling Main             ( /tmp/stack-sanity-check11158/Main.hs, /tmp/stack-sanity-check11158/Main.o )
Linking /tmp/stack-sanity-check11158/Main ...

/nix/store/zi17ydzr9x1kqjcpfjr93iwg1frpmv8s-binutils-2.28.1/bin/ld : ne peut trouver -lgmp
collect2: erreur : ld a retourné 1 code d'état d'exécution
`gcc' failed in phase `Linker'. (Exit code: 1)

It is probably a simple fix in the nix derivations, but my understanding of these is pretty limited...

Thank you in advance.

[Gabriella439]

Are you able to successfully do cabal configure inside of a nix-shell when not using the --pure flag?

[sboosali]

fwiw, i've seen this error when working with nix on non-NixOS platforms. .nix file (and/or stack.yaml and/or cabal.project file) needs gmp to be listed, i can't say weather this solves this particular problem, since I haven't looked at this project's build files.

[Gabriella439]

I've been testing on OS X (albeit without the --pure flag), so I think it should work without explicitly listing gmp

[sboosali]

i'm on Ubuntu, where I haven't installed many packages via the system package manager, and also deleted some files in `/usr/...`. so the GMP either didn't come with the installation or was removed afterwards. GMP is used by the compiler and standard library itself (it's technically a dependency), so I think it's good to depend on it explicitly (i.e. it doesn't feel like a hack), which I assume `haskellPackages.callPackage` does anyways. which I don't think ``haskellPackages. buildStackProject` or a raw `buildEnv` do (again, I haven't looked at the `.nix` here).

…

On Mon, Sep 17, 2018, 21:14 Gabriel Gonzalez ***@***.***> wrote: I've been testing on OS X (albeit without the --pure flag), so I think it should work without explicitly listing gmp — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#58 (comment)>, or mute the thread </~https://github.com/notifications/unsubscribe-auth/ACNoMS0BYCkXhFtjbHodjtLHuLe742sSks5ucHMpgaJpZM4UO5tg> .