Re: [GHC] #8102: Parallel build of HEAD consistently fails

#8102: Parallel build of HEAD consistently fails -------------------------------------+------------------------------------ Reporter: edsko | Owner: Type: bug | Status: patch Priority: normal | Milestone: Component: Build System | Version: 7.7 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Comment (by Austin Seipp ): In [changeset:"8ed8ac58b4a5c8654fccee4436ca62bf7c690474/integer-gmp"]: {{{ #!CommitTicketReference repository="integer-gmp" revision="8ed8ac58b4a5c8654fccee4436ca62bf7c690474" Hackishly fix parallel build failure with in-tree GMP See the comments and #8102. The basic gist of it seems to be that the build system follows an implied rule from somewhere to directly build a C file, which doesn't have a dependency on the in-tree gmp.h that we build. As a result, the C file compilation races against the GMP build, causing an error. This is a pretty unsatisfactory hack, but for Windows and OS X machines where we more often build in-tree GMPs, it's quite important. Authored-by: Kazu Yamamoto Signed-off-by: Austin Seipp }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8102#comment:10 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler