* macterm.c (XLoadQueryFont): Correctly handle 0 size

	font widths that are returned from some Japanese fonts.

1 files changed, 9 insertions, 4 deletions

diff --git a/src/macterm.c b/src/macterm.c
index 4d80fbac5fa..566f0c5b04b 100644
--- a/src/macterm.c
+++ b/src/macterm.c
@@ -6715,14 +6715,19 @@ XLoadQueryFont (Display *dpy, char *fontname)
             char_width = CharWidth (c);
             font->per_char[c - 0x20].width = char_width;
             font->per_char[c - 0x20].rbearing = char_width;
-            min_width = min (min_width, char_width);
-            max_width = max (max_width, char_width);
-          }
+            /* Some Japanese fonts (in SJIS encoding) return 0 as the
+               character width of 0x7f.  */
+            if (char_width > 0)
+              {
+                min_width = min (min_width, char_width);
+                max_width = max (max_width, char_width);
+              }
+            }
         font->min_bounds.width = min_width;
         font->max_bounds.width = max_width;
       }
     }
-
+  
   TextFont (old_fontnum);  /* restore previous font number, size and face */
   TextSize (old_fontsize);
   TextFace (old_fontface);