A tip on using stack ghc

I use stack ghc while compiling files to ensure sandboxing.

While trying to compile files through ghc with profiling flags I encountered an issue.

The binaries (.o and .hi) compiled without linking to an executable.

To fix this change the file’s module name to main.

This linked to the required executable.

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While using specific modules via stack to play with the libraries, one might encounter modules not included in snapshot.

Using stackage, you can find the latest lts/nightly build to fix this, editing the stack.yaml file.