diff -ur pwlib-1.8.7-orig/include/ptclib/vxml.h pwlib-1.8.7/include/ptclib/vxml.h
--- pwlib-1.8.7-orig/include/ptclib/vxml.h	2006-05-01 13:16:53.000000000 -0400
+++ pwlib-1.8.7/include/ptclib/vxml.h	2006-05-01 13:20:30.000000000 -0400
@@ -366,7 +366,7 @@
 
     virtual PString GetVar(const PString & str) const;
     virtual void SetVar(const PString & ostr, const PString & val);
-    virtual PString PVXMLSession::EvaluateExpr(const PString & oexpr);
+    virtual PString EvaluateExpr(const PString & oexpr);
 
     virtual BOOL RetreiveResource(const PURL & url, PString & contentType, PFilePath & fn, BOOL useCache = TRUE);
 
diff -ur pwlib-1.8.7-orig/include/ptlib/pstring.h pwlib-1.8.7/include/ptlib/pstring.h
--- pwlib-1.8.7-orig/include/ptlib/pstring.h	2006-05-01 13:16:53.000000000 -0400
+++ pwlib-1.8.7/include/ptlib/pstring.h	2006-05-01 13:17:25.000000000 -0400
@@ -3182,5 +3182,10 @@
     int lastError;
 };
 
+PString psprintf(
+      const char * cfmt,   /// C string for output format.
+      ...                  /// Extra parameters for #sprintf()# call.
+    );
+
 
 // End Of File ///////////////////////////////////////////////////////////////
diff -ur pwlib-1.8.7-orig/src/ptlib/unix/svcproc.cxx pwlib-1.8.7/src/ptlib/unix/svcproc.cxx
--- pwlib-1.8.7-orig/src/ptlib/unix/svcproc.cxx	2006-05-01 13:16:53.000000000 -0400
+++ pwlib-1.8.7/src/ptlib/unix/svcproc.cxx	2006-05-01 13:26:51.000000000 -0400
@@ -279,6 +279,8 @@
 #include <sys/resource.h>
 #endif
 
+extern void PXSignalHandler(int sig);
+
 #define new PNEW