diff --git a/configure b/configure
index 9978cb6..8cdfa50 100755
--- a/configure
+++ b/configure
@@ -3206,6 +3206,7 @@ check_header X11/extensions/Xfixes.h    &&
 check_func XOpenDisplay -lX11           &&
 check_func XShmCreateImage -lX11 -lXext &&
 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
+|| die "ERROR: Not all necessary X11 extensions found."
 
 if ! disabled vaapi; then
     check_lib va/va.h vaInitialize -lva && {