#13636: Enable -Wcpp-undef -------------------------------------+------------------------------------- Reporter: bgamari | Owner: (none) Type: task | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.1 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- e5b3492f23c2296d0d8221e1787ee585331f726e tried (again) to enable `-Wcpp- undef` in `mk/warnings.mk`, {{{#!make SRC_HC_OPTS_STAGE1 += $(WERROR) #-Wcpp-undef SRC_HC_OPTS_STAGE2 += $(WERROR) #-Wcpp-undef }}} Unfortunately, this caused build failures in boot libraries on some platforms (e.g. `time` on Darwin). Resolve these and reenable `-Wcpp- undef`. An alternative would be to instead only add `-Wcpp-undef` to `GhcRtsHcOpts`, `GhcStage1HcOpts` and `GhcStage2HcOpts`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13636 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler