emacs-28 3489471: Fix selection of fonts for Arabic on Posix platforms

[Eli Zaretskii]

branch: emacs-28
commit 34894714177d1bb0a382e7f68d716dfe3aa08376
Author: Eli Zaretskii <eliz@gnu.org>
Commit: Eli Zaretskii <eliz@gnu.org>

    Fix selection of fonts for Arabic on Posix platforms
    
    * lisp/international/fontset.el (script-representative-chars): Add
    U+06C1 to representative-characters for Arabic.  (Bug#50951)
---
 lisp/international/fontset.el | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lisp/international/fontset.el b/lisp/international/fontset.el
index 4ec641d..f0ead8a 100644
--- a/lisp/international/fontset.el
+++ b/lisp/international/fontset.el
@@ -157,7 +157,9 @@
        (armenian #x531)
        (hebrew #x5D0)
        (vai #xA500)
-       (arabic #x628)
+        ;; U+06C1 prevents us from using bad fonts, like DejaVu Sans,
+        ;; for Arabic text.
+       (arabic #x628 #x6C1)
        (syriac #x710)
        (thaana #x78C)
        (devanagari #x915)