Fix issues related to pixelwise resizing. (Bug#16013) (Bug#16033)

* window.c (Fset_window_new_pixel): Don't choke at negative
argument value (Bug#16033).

* xfns.c (Fx_create_frame): Add another call to change_frame_size
to avoid crash in window_box_height.

* gtkutil.h: Fix external declaration of xg_frame_set_char_size.
* gtkutil.c (xg_frame_set_char_size, style_changed_cb): Fix size
calculation.
* xterm.c (x_set_window_size): Fix size calculation (Bug#16013).

1 files changed, 3 insertions, 1 deletions

diff --git a/src/window.c b/src/window.c
index e2770410bce..1ef2b4a0e38 100644
--- a/src/window.c
+++ b/src/window.c
@@ -3646,10 +3646,12 @@ Note: This function does not operate on any child windows of WINDOW.  */)
   (Lisp_Object window, Lisp_Object size, Lisp_Object add)
 {
   struct window *w = decode_valid_window (window);
+  EMACS_INT size_min = (max (INT_MIN, MOST_NEGATIVE_FIXNUM)
+                        + (NILP (add) ? 0 : XINT (w->new_pixel)));
   EMACS_INT size_max = (min (INT_MAX, MOST_POSITIVE_FIXNUM)
                         - (NILP (add) ? 0 : XINT (w->new_pixel)));
 
-  CHECK_RANGED_INTEGER (size, 0, size_max);
+  CHECK_RANGED_INTEGER (size, size_min, size_max);
   if (NILP (add))
     wset_new_pixel (w, size);
   else