fixing #307823 and a couple of assorted bugs fixed conditionals in

* testapi.c runsuite.c runtest.c: fixing #307823 and a couple of
  assorted bugs
* python/generator.py python/libxml2-python-api.xml: fixed
  conditionals in generator too
* doc/apibuild.py doc/libxml2-api.xml doc/* elfgcchack.h: some
  cleanups too and rebuilt
Daniel

runtest.c

@@ -1969,6 +1969,7 @@ streamProcessTest(const char *filename, const char *result, const char *err,
 	    return(-1);
 	}
     }
+#ifdef LIBXML_SCHEMAS_ENABLED
     if (rng != NULL) {
 	ret = xmlTextReaderRelaxNGValidate(reader, rng);
 	if (ret < 0) {
@@ -1980,6 +1981,7 @@ streamProcessTest(const char *filename, const char *result, const char *err,
 	    return(0);
 	}
     }
+#endif
     xmlGetWarningsDefaultValue = 1;
     ret = xmlTextReaderRead(reader);
     while (ret == 1) {