1 files changed, 5 insertions, 0 deletions
diff --git a/eval.c b/eval.c
index 4b057afb6a..ccb25c84fe 100644
--- a/eval.c
+++ b/eval.c
@@ -11781,6 +11781,11 @@ thread_timer(dummy)
 #define test_cancel() /* void */
 #endif
 
+    sigset_t all_signals;
+
+    sigfillset(&all_signals);
+    pthread_sigmask(SIG_BLOCK, &all_signals, 0);
+
     for (;;) {
 #ifdef HAVE_NANOSLEEP
 	struct timespec req, rem;