(x_report_frame_params): Fix format/arg mismatch.

diff --git a/src/xfns.c b/src/xfns.c
index ff389a2b1a7fbd5c2aa353f876f8db2c178fd066..4255d7f2fec0ecd04c2ce1ce63aaf90f168be8df 100644 (file)
--- a/src/xfns.c
+++ b/src/xfns.c
@@ -704,7 +704,7 @@ x_report_frame_params (f, alistptr)
                   make_number (f->display.x->border_width));
   store_in_alist (alistptr, Qinternal_border_width,
                   make_number (f->display.x->internal_border_width));
-  sprintf (buf, "%d", FRAME_X_WINDOW (f));
+  sprintf (buf, "%ld", (long) FRAME_X_WINDOW (f));
   store_in_alist (alistptr, Qwindow_id,
                   build_string (buf));
   FRAME_SAMPLE_VISIBILITY (f);