[Haskell-cafe] Cabal: updating environment variable in a dependency

aditya siram aditya.siram at gmail.com
Sun Sep 17 00:21:41 UTC 2017

Hi all,
I have two separate packages, a library and an app. In the library's
Setup.hs I set the LIBRARY_PATH environment variable to a place where I
install a custom C shared library, but when the app is built LIBRARY_PATH
is empty.

I realize that GHC can build and link C code but for the purposes of this
project that wasn't workable. So is there a way to make this environment
variable hack work or, even better, a good way a dependency can pass custom
information to its dependents?

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