Avoid use of designated initializer for the sake of `cxx_abi`.
MODIFY
src/dump.c
src/dump.c
@@ -956,7 +956,7 @@ dump_pool(mrb_state *mrb, const mrb_pool_value *p, FILE *fp)
else { /* string */
int i, len = p->tt>>2;
const char *s = p->u.str;
- fprintf(fp, "{IREP_TT_STR|(%d<<2), {.str=\"", len);
+ fprintf(fp, "{IREP_TT_STR|(%d<<2), {\"", len);
for (i=0; i<len; i++) {
fprintf(fp, "\\x%02x", (int)s[i]&0xff);
}

Avoid use of designated initializer for the sake of `cxx_abi`.