Re: 21.4.2 mwheel.el woes

I> #ifdef SIGUSR1 I> handle_signal_if_fatal (SIGUSR1); /* POSIX */ I> #endif I> I assume the /* POSIX */ comment means that SIGUSR1 is a POSIX signal as I> opposed to an ANSI signal, not that the signal is handled with POSIX I> sementics. The comment simply means it's defined by the Posix standard. This has nothing to do with sigaction. I> So there's a possibility that in between the 2 calls to signal, another I> signal could arrive, and since the signal is reset to default behavior, I> the unignored SIGUSR1 causes a crash. I> Would using the POSIX signal functions (sigaction and friends) help here? My guess is that XEmacs is already using sigaction, even if it doesn't look like it. Try `make signal.i' and look at the preprocessor output.