* lisp/international/fontset.el (script-representative-chars,
setup-default-fontset): Add support for Avestan, Old Turkic, and Chakma.
(cherry picked from commit
9c98b6cbd37fb3d73424702b8a175e5f323b1c2d)
(lydian #x10920)
(kharoshthi #x10A00)
(manichaean #x10AC0)
+ (avestan #x10B00)
+ (old-turkic #x10C00)
(hanifi-rohingya #x10D00 #x10D24 #x10D39)
(garay #x10D50 #x10D70 #x10D4A #x10D41)
(yezidi #x10E80)
(old-uyghur #x10F70)
(brahmi #x11013 #x11045 #x11052 #x11065)
(kaithi #x1108D #x110B0 #x110BD)
+ (chakma #x11103)
(mahajani #x11150)
(sharada #x11191 #x111B3 #x111CD)
(khojki #x11200)
yezidi
kharoshthi
manichaean
+ avestan
chorasmian
elymaic
old-uyghur
brahmi
kaithi
+ chakma
sharada
grantha
tirhuta
mahajani
sogdian
old-sogdian
+ old-turkic
nabataean
palmyrene
linear-a