diff --git a/src/libmain/shared.cc b/src/libmain/shared.cc
index 31454e49d..0ee3fe772 100644
--- a/src/libmain/shared.cc
+++ b/src/libmain/shared.cc
@@ -194,9 +194,16 @@ void initNix()
     /* HACK: on darwin, we need can’t use sigprocmask with SIGWINCH.
      * Instead, add a dummy sigaction handler, and signalHandlerThread
      * can handle the rest. */
-    struct sigaction sa;
-    sa.sa_handler = sigHandler;
-    if (sigaction(SIGWINCH, &sa, 0)) throw SysError("handling SIGWINCH");
+    act.sa_handler = sigHandler;
+    if (sigaction(SIGWINCH, &act, 0)) throw SysError("handling SIGWINCH");
+
+    // Disable SA_RESTART for interrupts, so that system calls on this thread
+    // error with EINTR like they do on Linux, and we don’t hang forever.
+    act.sa_handler = SIG_DFL;
+    if (sigaction(SIGINT, &act, 0)) throw SysError("handling SIGINT");
+    if (sigaction(SIGTERM, &act, 0)) throw SysError("handling SIGTERM");
+    if (sigaction(SIGHUP, &act, 0)) throw SysError("handling SIGHUP");
+    if (sigaction(SIGPIPE, &act, 0)) throw SysError("handling SIGPIPE");
 #endif
 
     /* Register a SIGSEGV handler to detect stack overflows. */