[Haskell-cafe] make "cabal repl" run a custom preprocessor before loading

Markus Läll markus.l2ll at gmail.com
Thu May 15 11:54:12 UTC 2014

Hi Cafe,

I'm wondering how to run a custom preprocessor with "cabal repl"?

The case is that I have a package with an executable and a library. The
executable works fine with "ghc-options: -F -pgmF ./xxx.sh" in its cabal
config section, but the library seems to ignore it when I put the same line
into the library's section and then run "cabal repl". Also, the
substitutions didn't happen when running GHC directly with -F and -pgmF in
expression mode (-e).

Markus Läll
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