diff -ur root-6.12.04.orig/graf2d/graf/src/TTF.cxx root-6.12.04/graf2d/graf/src/TTF.cxx
--- root-6.12.04.orig/graf2d/graf/src/TTF.cxx	2018-01-15 10:57:07.314073647 +0100
+++ root-6.12.04/graf2d/graf/src/TTF.cxx	2018-01-15 11:02:00.210880469 +0100
@@ -126,6 +126,11 @@
              (platform == 1 && encoding == 0 &&
               (fgFontID[fgCurFontIdx] == 12 ||
                fgFontID[fgCurFontIdx] == 14 ||
+               fgFontID[fgCurFontIdx] == 15)) ||
+             // Horrible hack for broken charmaps in StandardSymbolsPS.otf
+             // Hopefully temporary...
+             (platform == 0 && encoding == 3 &&
+              (fgFontID[fgCurFontIdx] == 12 ||
                fgFontID[fgCurFontIdx] == 15)))
          {
             fgCharMap[fgCurFontIdx] = charmap;