Comments (4)
This is due to changes in ghc-7.10.1: http://stackoverflow.com/questions/28287329/ghc-7-10-non-type-variable-argument-use-flexiblecontexts-to-permit-this
You can get things to compile by adding -XFlexibleContexts
to the ghc call in the makefile, however, there were also some refactorings to Error/Exception handling in 7.10.1 so you get lots of build warnings.
I think the correct fix for this issue is to refactor and clean up the error/except handling code in the mal implementation so that things compile cleanly without the compiler options. Ideally, 7.6 should also be supported since that's still seems pretty typical version in the wild.
Anybody with Haskell chops want to tackle this? I probably won't have a chance anytime soon.
from mal.
Thank you.
I try to compile by addding -XFlexibleContexts.
It works.
from mal.
@ruoshuiwyl I would be interesting in hearing if you are able to use the latest changes from @prt2121 without requiring the -XFlexibleContexts hack
from mal.
thank you. I try to it.
from mal.
Related Issues (20)
- Does there exist implementation of emacs written in mal? HOT 1
- Consider merging eval, eval-ast and macroexpand
- Problem Running Tests with Readline Library in C HOT 4
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- what is the minimum requirement for the base language? HOT 1
- Verilog: is there a good reason mal has not been implemented? HOT 1
- VHDL: defmacro! doesn't modify existing functions HOT 1
- make "test^js^step0" fails -- Fatal error in , line 0 -- Check failed: result.second. HOT 1
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from mal.