diff --git a/src/os_unix.c b/src/os_unix.c
index b5255bb..cd3b68e 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -2393,6 +2393,16 @@
     return (long)getpid();
 }
 
+/*
+ * return TRUE if process "pid" is still running
+ */
+    int
+mch_process_running(pid_t pid)
+{
+    // EMX kill() not working correctly, it seems
+    return kill(pid, 0) == 0;
+}
+
 #if !defined(HAVE_STRERROR) && defined(USE_GETCWD)
     static char *
 strerror(int err)