Disable some URI tests on older libxml2

Older versions of libxml2 could not correctly parse certain
URIs. This causes test failures. There's nothing libvirt can
do about this, so disable the problem tests on old libxml2
versions
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

tests/viruritest.c

@@ -182,19 +182,23 @@ mymain(void)
         { (char*)"foo", (char*)"two", false },
         { NULL, NULL, false },
     };
+#ifdef HAVE_XMLURI_QUERY_RAW
     virURIParam params3[] = {
         { (char*)"foo", (char*)"&one", false },
         { (char*)"bar", (char*)"&two", false },
         { NULL, NULL, false },
     };
+#endif
     virURIParam params4[] = {
         { (char*)"foo", (char*)"", false },
         { NULL, NULL, false },
     };
+#ifdef HAVE_XMLURI_QUERY_RAW
     virURIParam params5[] = {
         { (char*)"foo", (char*)"one two", false },
         { NULL, NULL, false },
     };
+#endif
     virURIParam params6[] = {
         { (char*)"foo", (char*)"one", false },
         { NULL, NULL, false },
@@ -204,12 +208,16 @@ mymain(void)
     TEST_PARAMS("foo=one&foo=two", "", params2);
     TEST_PARAMS("foo=one&&foo=two", "foo=one&foo=two", params2);
     TEST_PARAMS("foo=one;foo=two", "foo=one&foo=two", params2);
+#ifdef HAVE_XMLURI_QUERY_RAW
     TEST_PARAMS("foo=%26one&bar=%26two", "", params3);
+#endif
     TEST_PARAMS("foo", "foo=", params4);
     TEST_PARAMS("foo=", "", params4);
     TEST_PARAMS("foo=&", "foo=", params4);
     TEST_PARAMS("foo=&&", "foo=", params4);
+#ifdef HAVE_XMLURI_QUERY_RAW
     TEST_PARAMS("foo=one%20two", "", params5);
+#endif
     TEST_PARAMS("=bogus&foo=one", "foo=one", params6);
 
     return ret==0 ? EXIT_SUCCESS : EXIT_FAILURE;