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> scwm-constraints.hpp:71: warning: volatile qualifier ignored on asm > > I did not get such warnings from egcs-1.01 thru 1.03a, so something must > have changed. I'm not sure if this is a bug in egcs, or if it's a > change in its guarantees. If egcs is not buggy on this point, then the > SCM_FENCE may need to be expanded away to nothing to avoid the warning > and we need to be sure that something else is preventing code motion as > SCM_FENCE is intended to do. Anthony Green put in that stuff, so I've asked him if he knows what's changed in the compiler...