FS-4645 does this help

diff --git a/src/switch_core.c b/src/switch_core.c
index 20dfd9b41149092ba5cede5b496b1aa0e504317e..86804f09b7360a8f4a5524b9cc00191450dd0fc2 100644 (file)
--- a/src/switch_core.c
+++ b/src/switch_core.c
@@ -201,7 +201,7 @@ SWITCH_DECLARE(void) switch_core_screen_size(int *x, int *y)
                if (y) *y = csbi.dwSize.Y;
        }
 
-#elif TIOCGWINSZ
+#elif defined(TIOCGWINSZ)
        struct winsize w;
        ioctl(0, TIOCGWINSZ, &w);