stack ghc -- --version
The Glorious Glasgow Haskell Compilation System, version 7.10.3
I want to upgrade to ghc 8.
How can I tell stack to upgrade ghc?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):
问题:
回答1:
dysfun from the IRC answered my question so I will post it here for more posterity.
To update the ghc used to compile a project, go to the yaml file. In there is the resolver field. Update that accordingly.
For my case, I found this webpage https://www.stackage.org/lts-9.0
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