Yogthos cb03e36088 Don't abort startup on Windows resolving POSIX signal fns ... joltc failed to start on Windows — "Exception in foreign-procedure: no entry for pthread_sigmask". concurrency.ss resolves pthread_sigmask/sigemptyset/sigaddset at load with a top-level (foreign-procedure …), which resolves its symbol eagerly; those POSIX signal fns don't exist on Windows, so the whole runtime aborted. Guard the three resolutions (like sched_yield/chmod already are) so a non-POSIX host yields #f, and make jolt-set-sigint-blocked a no-op when they're unavailable. The per-thread SIGINT mask is a POSIX-only optimization for the nREPL accept loop; Windows delivers ^C through the console, and park-until-interrupt still parks on a condition variable. macOS/Linux resolve the symbols as before — unchanged.		2026-07-01 14:23:19 -04:00
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chez	Don't abort startup on Windows resolving POSIX signal fns	2026-07-01 14:23:19 -04:00