preparing release of 2.6.18 updated docs and rebuilt reactivated gcc

* NEWS configure.in testapi.c doc/*: preparing release of 2.6.18
  updated docs and rebuilt
* libxml.spec.in: reactivated gcc profiling for gcc >= 4.0.0
Daniel
diff --git a/doc/APIchunk1.html b/doc/APIchunk1.html
index 6d5cbd2..eb14d20 100644
--- a/doc/APIchunk1.html
+++ b/doc/APIchunk1.html
@@ -240,6 +240,7 @@
 <a href="html/libxml-xmlschemastypes.html#xmlSchemaCompareValuesWhtsp">xmlSchemaCompareValuesWhtsp</a><br />
 <a href="html/libxml-xpath.html#xmlXPathCmpNodes">xmlXPathCmpNodes</a><br />
 </dd><dt>Compile</dt><dd><a href="html/libxml-xmlautomata.html#xmlAutomataCompile">xmlAutomataCompile</a><br />
+<a href="html/libxml-pattern.html#xmlPatterncompile">xmlPatterncompile</a><br />
 <a href="html/libxml-xpath.html#xmlXPathCompile">xmlXPathCompile</a><br />
 <a href="html/libxml-xpath.html#xmlXPathCtxtCompile">xmlXPathCtxtCompile</a><br />
 <a href="html/libxml-xpathInternals.html#xmlXPathStringEvalNumber">xmlXPathStringEvalNumber</a><br />
@@ -291,6 +292,7 @@
 <a href="html/libxml-xpath.html#xmlXPathConvertBoolean">xmlXPathConvertBoolean</a><br />
 <a href="html/libxml-xpath.html#xmlXPathConvertNumber">xmlXPathConvertNumber</a><br />
 <a href="html/libxml-xpath.html#xmlXPathConvertString">xmlXPathConvertString</a><br />
+</dd><dt>Copies</dt><dd><a href="html/libxml-xmlschemastypes.html#xmlSchemaCopyValue">xmlSchemaCopyValue</a><br />
 </dd><dt>Copy</dt><dd><a href="html/libxml-valid.html#xmlCopyEnumeration">xmlCopyEnumeration</a><br />
 <a href="html/libxml-parser.html#xmlGetFeaturesList">xmlGetFeaturesList</a><br />
 <a href="html/libxml-tree.html#xmlReconciliateNs">xmlReconciliateNs</a><br />