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stepcut / plugins

Dynamic linking and runtime evaluation of Haskell, and C, including dependency chasing and package resolution.
GNU Lesser General Public License v2.1
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eval example broken in latest github version #10

Closed noughtmare closed 5 years ago

noughtmare commented 5 years ago

I have been able to successfully compile plugins from github, but the example of the eval function doesn't work anymore.

https://github.com/stepcut/plugins/blob/5866046ca01648780a7cafbcc74c2ab3bb35257e/src/System/Eval/Haskell.hs#L89-L90

eval "1 + 6 :: Int" [] :: IO (Maybe Int) just returns Nothing.

stepcut commented 5 years ago

I don't really know anything about how this library works. It was abandon for a while and I took it over. But I pretty much just pull pull requests and upload new versions to hackage.

noughtmare commented 5 years ago

I think I now what the problem is: ghc returns some output: "Loaded package environment from /home/jaro/plugins/.ghc.environment.x86_64-linux-8.6.5" to stderr, which makes the System.Plugins.Make.build function return that string and then the System.Plugins.Make.rawMake function thinks that there is an error, but that output from ghc is not an error.