#2710: -main-is flag in {-# OPTIONS #-} pragma not fully supported -------------------------------------+------------------------------------- Reporter: Stephan202 | Owner: Type: bug | Status: infoneeded Priority: lowest | Milestone: 7.12.1 Component: Compiler | Version: 6.8.3 Resolution: | Keywords: -main-is Operating System: Unknown/Multiple | ghc Type of failure: Incorrect | Architecture: warning at compile-time | Unknown/Multiple Blocked By: | Test Case: Related Tickets: #1312 | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by thomie): * status: new => infoneeded * related: => #1312 Comment: Please read the following irc discussion. {{{ thomie > Should `-main-is` be a dynamic flag? That is, should the following be allowed: {-# OPTIONS_GHC -main-is Foo.bar -#} thomie > It's currently broken #2710 thomie > But what should happen when it is specified in multiple modules? rwbarton > yeah, or if a module specifies that Main is another module rwbarton > it's really a link-time setting isn't it? rwbarton > Probably the only thing that makes sense to put in an OPTIONS pragma is for a module to redefine which of its own symbols is main, but I'm not sure even that is worth supporting rwbarton > for that matter, what does it mean to mean to specify in an OPTIONS pragma something like -rtsopts/-with-rtopts/-debug/etc. rwbarton > IMO anything like that that doesn't affect the compilation of an individual module should just be forbidden carter_cloud > sounds reasonable to me }}} If there are no objections, I'd like to close this ticket as wontfix, and open a new ticket to show a warning when -main-is/-rtsopts/-with- rtopts/-debug etc. are used in an OPTIONS pragma. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/2710#comment:15 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler