[Haskell-cafe] How to use unsafePerformIO properly (safely?)

I use the dreaded unsafePerformIO for a few functions in my graphviz library ( http://hackage.haskell.org/packages/archive/graphviz/2999.8.0.0/doc/html/src... ). However, a few months ago someone informed me that the documentation for unsafePerformIO had some steps that should be followed whenever it's used: http://www.haskell.org/ghc/docs/latest/html/libraries/base-4.2.0.0/System-IO... . Looking through this documentation, I'm unsure on how to deal with the last two bullet points (adding NOINLINE pragmas is easy). The code doesn't combine IO actions, etc. and I don't deal with mutable variables, so do I have to worry about them? -- Ivan Lazar Miljenovic Ivan.Miljenovic@gmail.com IvanMiljenovic.wordpress.com