#13152: Provide a mechanism to notify build system when .hi file is ready -------------------------------------+------------------------------------- Reporter: rwbarton | Owner: Type: feature request | Status: new Priority: normal | Milestone: 8.2.1 Component: Driver | Version: 8.1 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 rwbarton): It might not even be that hard to retrofit use of this feature into the existing build system, changing a rule like {{{ Foo.hi : Bar.hi Baz.hi ghc -c Foo.hs }}} to something like {{{ Foo.hi : Bar.hi Baz.hi ( ( ghc -c Foo.hs -finterface-file-finished=1,0,x ; \ buildserver finished Foo.o ) & ) | read -n 1 }}} and then for the `.o` files {{{ Foo.o : Foo.hi buildserver await Foo.o }}} Here `buildserver await` is a program that will block until the corresponding `buildserver finished` has been run. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13152#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler