John Meacham wrote: > [...] --show-iface seems to not be able to show .hi files created when > profiling is turned on. [...] Use the (undocumented :-) option "-buildtag p" *before* --show-iface, e.g. ghc -buildtag p --show-iface Foo.p_hi It doesn't work after --show-iface, neither does any combination with -prof. SimonM: Should this be fixed or documented as a feature? Cheers, S.