coretext: don't use a variable-length array

This fixes compilation with GCC, which complains that a
variable-length array declaration must not have an initializer.

diff --git a/libass/ass_coretext.c b/libass/ass_coretext.c
index aed4b02e87984c0534f1df67bdb58332ca799485..a52ead589a32718e198aa69e96dcd179d1ccf2e7 100644 (file)
--- a/libass/ass_coretext.c
+++ b/libass/ass_coretext.c
@@ -232,7 +232,7 @@ static void process_descriptors(ASS_FontProvider *provider, CFArrayRef fontsd)
 static void match_fonts(ASS_Library *lib, ASS_FontProvider *provider,
                         char *name)
 {
-    const size_t attributes_n = 3;
+    enum { attributes_n = 3 };
     CTFontDescriptorRef ctdescrs[attributes_n];
     CFMutableDictionaryRef cfattrs[attributes_n];
     CFStringRef attributes[attributes_n] = {