mt_codepage implements code pages 874/932/936/949/950/1250-1258 from Microsoft's bestfit<cp>.txt sources (script/gen_codepage_tables.py, SHA-256 pinned). Win32Crt's MultiByteToWideChar/WideCharToMultiByte/ IsDBCSLeadByteEx and net/text_codec use it, so the Android API 24 build no longer depends on iconv. port.codepage checks every table against its source file. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>