Wiindows 7, Haskepp Platform 2011.4, GHC 7.0.4
Try to right-click on an Executable (or Main.hs) and choose "Run With Profiling"
get this eror
MyProject.exe: Most RTS options are disabled. Link with -rtsopts to enable them.
I tried adding "-rtsopts" as a GHC Option un Window -> Preferences -> Haskell -> Haskell Implementations -> GHC
Workaround: I also tried adding "-rtsopts to the Cabal file "ghc-options" section. That works, sometimes.
ghc-options: -Wall -rtsopts
EclipseFP seems to be unpredictable in how it chooses to rebuild content, so I had to delete .dist-buildwrapper\dist\build\MyProject, Project -> Clean, Project -> Build, etc, before a new executable was generated.
Then, Profiling worked. (Very nice!)