#16253: Offer a shorthand for `--skip=_build/stage$n/compiler/.dependencies.mk` -------------------------------------+------------------------------------- Reporter: sgraf | Owner: (none) Type: task | Status: new Priority: normal | Milestone: Component: Build System | Version: 8.6.3 (Hadrian) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by NeilMitchell): In the past I've written a function that reads the file, and using fairly simplistic string matching guesses what it depends on, in the build system itself. It can avoid shelling out to GHC (hugely expensive on Windows, especially with corporate antivirus systems) and avoid running CPP. Generally most CPP doesn't impact which files are used, and even if it does, having a superset isn't a problem. The kind of function I've used previously is on the order of: {{{#!hs [... extract_the_module_name x ... | x <- lines src, "import " `isPrefixOf` x] }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/16253#comment:11 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler