[libxml2] Portability to non C99 compliant compilers

[Daniel Veillard <veillard src gnome org>]

commit 90da33cebeba87ae3b49a270c8182142dd7cb48e
Author: Patrick Monnerat <pm datasphere ch>
Date:   Tue May 3 21:37:52 2016 +0800

    Portability to non C99 compliant compilers
    
    OS400 C compiler is not C99 compliant.
    It only supports local variable declarations at the beginning of a block.
    We loose the const as a result but portability is more important.

 xmlschemastypes.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/xmlschemastypes.c b/xmlschemastypes.c
index 60f5414..5f38599 100644
--- a/xmlschemastypes.c
+++ b/xmlschemastypes.c
@@ -5307,6 +5307,7 @@ xmlSchemaValidateFacetInternal(xmlSchemaFacetPtr facet,
                               xmlSchemaWhitespaceValueType ws)
 {
     int ret;
+    int stringType;
 
     if (facet == NULL)
        return(-1);
@@ -5324,8 +5325,8 @@ xmlSchemaValidateFacetInternal(xmlSchemaFacetPtr facet,
            * the datatype.
            * See https://www.w3.org/TR/xmlschema-2/#rf-pattern
            */
-           const int stringType = val && ((val->type >= XML_SCHEMAS_STRING && val->type <= 
XML_SCHEMAS_NORMSTRING)
-                                           || (val->type >= XML_SCHEMAS_TOKEN && val->type <= 
XML_SCHEMAS_NCNAME));
+           stringType = val && ((val->type >= XML_SCHEMAS_STRING && val->type <= XML_SCHEMAS_NORMSTRING)
+                             || (val->type >= XML_SCHEMAS_TOKEN && val->type <= XML_SCHEMAS_NCNAME));
            ret = xmlRegexpExec(facet->regexp,
                                (stringType && val->value.str) ? val->value.str : value);
            if (ret == 1)