Hello Simon, You can use Template Haskell's addDependentFile to register a dependency on external files.
http://hackage.haskell.org/packages/archive/template-haskell/2.7.0.0/doc/html/Language-Haskell-TH-Syntax.html#v:addDependentFile You can also put -fforce-recomp in an OPTIONS_GHC pragma to ask GHC to always recompile the file. {-# OPTIONS_GHC -fforce-recomp #-} Etienne Laurin 2012/5/17 Simon Hengel <s...@typeful.net>: > Hi, > I'm experimenting with a preprocessor to automatically generate test > drivers[1]. The result depends on the existence of other files on the > disk. When files are added or removed, the test driver has to be > regenerated. > > Ideally ghc would just always recompile that single file (akin to make's > .PHONY), and it should work with ghci's :reload and with cabal. > > I tried to touch the file within the preprocessor, but this does not > work. It seems, that GHC checks the modification time only after > preprocessing. > > Any ideas how to tackle this? > > Cheers, > Simon > > [1] https://github.com/sol/hspec-discover _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users