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Mikael Djurfeldt <mdj@nada.kth.se> writes: > + We could make it easier to add new features in the future (How, though?) One ugly but long-term useful hack I've used in the past is to put junk on the end of structures that are likely to grow: typedef struct _scm_smobfuns { int a_real_field; int b_real_field; int future_needs[20]; } scm_smobfuns; This will ensure binary compatibilty for a while at least... Please ignore if it's too ugly to contemplate. -russ