- FSHOW((stderr, "/maybe_gc: calling POST_GC\n"));
- if (!interrupt_handler_pending_p())
- unblock_deferrable_signals();
- funcall0(StaticSymbolFunction(POST_GC));
+#ifndef LISP_FEATURE_WIN32
+ sigset_t *context_sigmask = os_context_sigmask_addr(context);
+ if (!deferrables_blocked_p(context_sigmask)) {
+ thread_sigmask(SIG_SETMASK, context_sigmask, 0);
+ check_gc_signals_unblocked_or_lose(0);
+#endif
+ FSHOW((stderr, "/maybe_gc: calling POST_GC\n"));
+ funcall0(StaticSymbolFunction(POST_GC));
+#ifndef LISP_FEATURE_WIN32
+ } else {
+ FSHOW((stderr, "/maybe_gc: punting on POST_GC due to blockage\n"));
+ }
+#endif