diff -up ./src/sys_unix.c.close_on_exec ./src/sys_unix.c
--- ./src/sys_unix.c.close_on_exec	2009-02-24 16:02:47.641288000 -0800
+++ ./src/sys_unix.c	2009-02-24 16:10:25.774746000 -0800
@@ -123,9 +123,12 @@ INTERNAL int SYS_USleep(int iTimeVal)
  * @retval >0 The file descriptor.
  * @retval -1 An error ocurred.
  */
+
 INTERNAL int SYS_OpenFile(const char *pcFile, int flags, int mode)
 {
-	return open(pcFile, flags, mode);
+	int fd = open(pcFile, flags, mode);
+	fcntl(fd, F_SETFD, FD_CLOEXEC);
+	return fd;
 }
 
 /**