Hal, Do please say what version of GHC you are using when reporting bugs! I can reproduce this with -O2, but not with -O. That's good, because it's a bug we fixed last week. It'll be fixed in the upcoming 5.02.2 release. thanks for reporting it. The workaround is not to use -O2 for Pattern.hs Simon | -----Original Message----- | From: Hal Daume III [mailto:hdaume@ISI.EDU] | Sent: 04 January 2002 17:36 | To: GHC Users Mailing List | Subject: weird compiler bug/failed to load interface | | | There's one module I wrote that I use in a lot of my programs | and for some reason, whenever I compile a program using this | module with -O or -O2, make changes to the Main, and then | recompile, I get the following error from ghc: | | Skipping Pattern ( Pattern.hs, Pattern.o ) | | failed to load interface for `Pattern': | Could not find interface file for `Pattern' | | Failed to find interface decl for `Pattern.a' | from module `Pattern' | | if I "ls Pattern.*" I get Pattern.hi, Pattern.hs and Pattern.o. | | In order to get it to compile correctly, I have to rm | Pattern.o and then rerun ghc on the Main module. | | I've attached the Pattern.hs fyi. If anyone has any | suggestions, please let me know. (btw, I'm using --make) | | Thanks! | | - Hal | | -- | Hal Daume III | | "Computer science is no more about computers | hdaume@isi.edu | than astronomy is about telescopes." -Dijkstra | www.isi.edu/~hdaume |