#12752: GHC should be able to warn on unsafe CPP usage -------------------------------------+------------------------------------- Reporter: erikd | Owner: erikd Type: feature request | Status: closed Priority: normal | Milestone: 8.2.1 Component: Compiler | Version: 8.1 Resolution: fixed | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Other | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): phab:D2626 Wiki Page: | -------------------------------------+------------------------------------- Comment (by rwbarton): Well okay, but you could also just use `-optP -Wundef` since forever. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12752#comment:7> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler