runtest: Work around broken EUC-JP support in musl iconv

Should fix #728.

Author: nwellnhof

runtest.c

@@ -4938,7 +4938,25 @@ launchTests(testDescPtr tst) {
 
     ebcdicHandler = xmlGetCharEncodingHandler(XML_CHAR_ENCODING_EBCDIC);
     ibm1141Handler = xmlFindCharEncodingHandler("IBM-1141");
+
+    /*
+     * When decoding EUC-JP, musl doesn't seem to support 0x8F control
+     * codes.
+     */
     eucJpHandler = xmlGetCharEncodingHandler(XML_CHAR_ENCODING_EUC_JP);
+    if (eucJpHandler != NULL) {
+        xmlBufferPtr in, out;
+
+        in = xmlBufferCreateSize(10);
+        xmlBufferCCat(in, "\x8f\xe9\xae");
+        out = xmlBufferCreateSize(10);
+        if (xmlCharEncInFunc(eucJpHandler, out, in) != 3) {
+            xmlCharEncCloseFunc(eucJpHandler);
+            eucJpHandler = NULL;
+        }
+        xmlBufferFree(out);
+        xmlBufferFree(in);
+    }
 
     if (tst == NULL) return(-1);
     if (tst->in != NULL) {