Bug: https://bugs.gentoo.org/894562
Taken from: https://git.savannah.gnu.org/cgit/screen.git/commit/?id=7f320d3a643ec95682a7213b7e991e27038d8a57
--- a/display.c
+++ b/display.c
@@ -27,6 +27,7 @@
  */
 
 #include <sys/types.h>
+#include <sys/stat.h>
 #include <signal.h>
 #include <fcntl.h>
 #ifndef sun