Bryan O'Sullivan wrote:
Simon Marlow wrote:
Bryan O'Sullivan wrote:
I tried reporting a Cabal bug via Trac, but I can't log in as guest/haskell. Alas.
The password is "haskell'" (note the final apostrophe).
D'oh! Alas, the tick is practically invisible to me on the web page, and I had my prescription for glasses checked recently :-) I'll remember it's there, though.
Not adding -auto-all is the right default; the intended usage is for building a profiled version of the library so that a user can profile their own application against it, not to profile the library itself.
Fair enough. Do library maintainers normally use Cabal to do routine builds and rebuilds of their own libraries? If so, do people simply keep locally modified .cabal files around for this kind of thing?
By the way, when I spent a bit more time poking around at this, I found that even adding -auto-all left me with empty cost centres in profile output for libraries (but not the main app) on x86_64, but everything was fine on i386. I'm unfamiliar enough with the territory that I don't know quite what to do with this piece of information. What would be useful for you to know if I were to file a bug?
I can't imagine why this might happen... could you check with -v that the -auto-all flag is being passed to ghc as expected? If it is, then please file a GHC bug at http://hackage.haskell.org/trac/ghc. Otherwise it may be a Cabal bug, I guess. You definitely did 'setup configure' again, right? Cheers, Simon