Add RBIMPL_ATTR_NONSTRING_ARRAY() macro for GCC 15

Author: nobu

enc/trans/iso2022.trans

@@ -437,7 +437,7 @@ rb_cp50221_encoder = {
 
 /* JIS0201 to JIS0208 conversion table */
 enum {tbl0208_num = 0xDF - 0xA1 + 1};
-RBIMPL_ATTR_NONSTRING() static const char tbl0208[tbl0208_num][2] = {
+RBIMPL_ATTR_NONSTRING_ARRAY() static const char tbl0208[tbl0208_num][2] = {
     "\x21\x23", "\x21\x56", "\x21\x57", "\x21\x22",
     "\x21\x26", "\x25\x72", "\x25\x21", "\x25\x23",
     "\x25\x25", "\x25\x27", "\x25\x29", "\x25\x63",

include/ruby/internal/attr/nonstring.h

@@ -25,8 +25,14 @@
 /** Wraps (or simulates) `__attribute__((nonstring))` */
 #if RBIMPL_HAS_ATTRIBUTE(nonstring)
 # define RBIMPL_ATTR_NONSTRING() __attribute__((nonstring))
+# if RBIMPL_COMPILER_SINCE(GCC, 15, 0, 0)
+#   define RBIMPL_ATTR_NONSTRING_ARRAY() RBIMPL_ATTR_NONSTRING()
+# else
+#   define RBIMPL_ATTR_NONSTRING_ARRAY() /* void */
+# endif
 #else
 # define RBIMPL_ATTR_NONSTRING() /* void */
+# define RBIMPL_ATTR_NONSTRING_ARRAY() /* void */
 #endif
 
 #endif /* RBIMPL_ATTR_NONSTRING_H */

symbol.c

@@ -172,7 +172,7 @@ rb_id_attrset(ID id)
 
     /* make new symbol and ID */
     if (!(str = lookup_id_str(id))) {
-        static const char id_types[][8] = {
+        RBIMPL_ATTR_NONSTRING_ARRAY() static const char id_types[][8] = {
             "local",
             "instance",
             "invalid",