added 2 new configure option: --with-reader --with-sax1 to allow removing

* Makefile.am SAX.c SAX2.c configure.in globals.c parser.c
  parserInternals.c testReader.c testSAX.c xmlIO.c xmllint.c
  xmlreader.c example/gjobread.c include/libxml/xmlversion.h.in:
  added 2 new configure option: --with-reader --with-sax1
  to allow removing the reader or non-xmlReadxxx() interfaces.
Daniel
diff --git a/example/gjobread.c b/example/gjobread.c
index a447959..b192bf4 100644
--- a/example/gjobread.c
+++ b/example/gjobread.c
@@ -184,11 +184,18 @@
     xmlNsPtr ns;
     xmlNodePtr cur;
 
+#ifdef LIBXML_SAX1_ENABLED
     /*
      * build an XML tree from a the file;
      */
     doc = xmlParseFile(filename);
     if (doc == NULL) return(NULL);
+#else
+    /*
+     * the library has been compiled without some of the old interfaces
+     */
+    return(NULL);
+#endif /* LIBXML_SAX1_ENABLED */
 
     /*
      * Check the document is of the right kind