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On Wed, 23 Jun 2004, Alan Watson wrote: > Hi Felix, > > I suggest adding a prominent warning to the SRFI-55 document saying: > > This SRFI cannot be supported by all Schemes. Therefore, by using it > you are restricting the portability of your code. No, this isn't quite enough; otherwise such a notice would apply to, as Felix tried to use against me previouisly, SRFI 21, the SRFI for real- time multithreading. The notice also ought to mention that it's just _this_particular_ realization of feature constructs that can't be supported in all Schemes, and that there exist other mechanisms that would work perfectly fine.