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--- src/rxvtfont.C.orig	2021-11-21 16:33:25.000000000 -0300
+++ src/rxvtfont.C	2023-08-02 01:22:01.978928240 -0300
@@ -1304,12 +1304,21 @@
           XGlyphInfo g;
           XftTextExtents16 (disp, f, &ch, 1, &g);

+/*
+ * bukind: don't use g.width as a width of a character!
+ * instead use g.xOff, see e.g.: http://keithp.com/~keithp/render/Xft.tutorial
+
           g.width -= g.x;

           int wcw = WCWIDTH (ch);
           if (wcw > 0) g.width = (g.width + wcw - 1) / wcw;

           if (width    < g.width       ) width    = g.width;
+ */
+          int wcw = WCWIDTH (ch);
+          if (wcw > 1) g.xOff = g.xOff / wcw;
+          if (width < g.xOff) width = g.xOff;
+
           if (height   < g.height      ) height   = g.height;
           if (glheight < g.height - g.y) glheight = g.height - g.y;
         }