minor error cleanup for gcc-3.3.[12] compilation warnings.

* catalog.c,relaxng.c,testAutomata.c,xpointer.c,genChRanges.py,
  chvalid.c,include/libxml/chvalid.h,doc/examples/test1.c:
  minor error cleanup for gcc-3.3.[12] compilation warnings.
diff --git a/xpointer.c b/xpointer.c
index e215153..2b96fd3 100644
--- a/xpointer.c
+++ b/xpointer.c
@@ -898,7 +898,7 @@
 #define CUR_PTR ctxt->cur
 
 #define SKIP_BLANKS 							\
-    while (IS_BLANK(*(ctxt->cur))) NEXT
+    while (IS_BLANK_CH(*(ctxt->cur))) NEXT
 
 #define CURRENT (*ctxt->cur)
 #define NEXT ((*ctxt->cur) ?  ctxt->cur++: ctxt->cur)