nixos + haskell + opengl(先决条件)

时间:2016-10-28 18:17:08

标签: haskell opengl nixos

不幸的是,我没有从this open gl教程中获得一个简单的示例程序。

ghc --make gfx.hs
Could not find module ‘Graphics.UI.GLUT’
[..]

然后我尝试了以下内容:

cabal install GLUT

Warning: The package list for 'hackage.haskell.org' is 44.1 days old.
Run 'cabal update' to get the latest list of available packages.
Resolving dependencies...
Configuring OpenGLRaw-3.2.2.0...
Failed to install OpenGLRaw-3.2.2.0
Build log ( /home/m/.cabal/logs/OpenGLRaw-3.2.2.0.log ):
Configuring OpenGLRaw-3.2.2.0...
setup-Simple-Cabal-1.22.5.0-x86_64-linux-ghc-7.10.3: Missing dependency on a
foreign library:
* Missing C library: GL
This problem can usually be solved by installing the system package that
provides this library (you may need the "-dev" version). If the library is
already installed but in a non-standard location then you can use the flags
--extra-include-dirs= and --extra-lib-dirs= to specify where it is.
cabal: Error: some packages failed to install:
GLURaw-2.0.0.2 depends on OpenGLRaw-3.2.2.0 which failed to install.
GLUT-2.7.0.10 depends on OpenGLRaw-3.2.2.0 which failed to install.
OpenGL-3.0.1.0 depends on OpenGLRaw-3.2.2.0 which failed to install.
OpenGLRaw-3.2.2.0 failed during the configure step. The exception was:
ExitFailure 1

看起来缺少的C库就是问题所在。我正在使用nixOS,有没有人知道我必须做哪些步骤才能让它运行?

3 个答案:

答案 0 :(得分:1)

如果您想使用nix-shell

$ nix-shell -p 'haskellPackages.ghcWithPackages (p: [ p.GLUT ])'

会为您提供一个知道ghc

GLUT的shell

我尝试使用此代码(来自您提到的wiki page

import Graphics.UI.GLUT

main :: IO ()
main = do
  (_progName, _args) <- getArgsAndInitialize
  _window <- createWindow "Hello World"
  displayCallback $= display
  mainLoop

display :: DisplayCallback
display = do
  clear [ ColorBuffer ]
  flush

但更优选的方法是创建shell.nix,这样您就不需要记住它。要使用shell.nix,只需在目录所在的地方调用nix-shell,不要在任何地方调用nix-shell /path/to/shell.nix

shell.nix来自manual

{ nixpkgs ? import <nixpkgs> {} }:
with nixpkgs;
let
  ghc = haskellPackages.ghcWithPackages (ps: with ps; [
          GLUT
        ]);
in
stdenv.mkDerivation {
  name = "my-haskell-env";
  buildInputs = [ ghc ];
  shellHook = "eval $(egrep ^export ${ghc}/bin/ghc)";
}

对于较大的项目,您可能希望使用cabalstack,但我认为这将是另一个故事。

答案 1 :(得分:-1)

在Linux(Nix是Linux发行版)上,LSB指定error: ‘CollisionHandler’ has not been declared void setCollisionHandler(CollisionHandler* collisionHandler); 是桌面配置文件的一部分。这意味着至少安装了X11客户端库。 libGL虽然有点特殊,但允许被图形驱动程序安装覆盖。

归结为:为GPU安装图形驱动程序。如果您使用的是Intel或AMD GPU,请安装Mesa驱动程序。如果您的系统有NVidia GPU,我推荐使用专有的NVidia驱动程序。

答案 2 :(得分:-1)

在nixos中,库通常不在cabal期望的路径上。请尝试以下方法:

nix-shell -p libGL libGLU freeglut cabal install GLUT