(tty_setup_colors): Treat any negative argument as -1.

[gnu-emacs] / src / term.c

diff --git a/src/term.c b/src/term.c
index 1f4ceaec62718b19558812650b9c452d60939d83..8e4eb21c362dd63729258bd4b175bebd6cafeb48 100644 (file)
--- a/src/term.c
+++ b/src/term.c
@@ -2066,6 +2066,10 @@ void
 tty_setup_colors (mode)
      int mode;
 {
+  /* Canonicalize all negative values of MODE.  */
+  if (mode < -1)
+    mode = -1;
+
   switch (mode)
     {
       case -1:  /* no colors at all */
@@ -2108,7 +2112,7 @@ set_tty_color_mode (f, val)
   tty_color_mode_alist = Fintern_soft (build_string ("tty-color-mode-alist"),
                                       Qnil);
 
-  if (NATNUMP (val))
+  if (INTEGERP (val))
     color_mode = val;
   else
     {
@@ -2127,11 +2131,11 @@ set_tty_color_mode (f, val)
     current_mode = XCDR (current_mode_spec);
   else
     current_mode = Qnil;
-  if (NATNUMP (color_mode))
+  if (INTEGERP (color_mode))
     mode = XINT (color_mode);
   else
     mode = 0;  /* meaning default */
-  if (NATNUMP (current_mode))
+  if (INTEGERP (current_mode))
     old_mode = XINT (current_mode);
   else
     old_mode = 0;