Index: src/plugins/contrib/AutoVersioning/AutoVersioning.cpp
===================================================================
--- src/plugins/contrib/AutoVersioning/AutoVersioning.cpp    (revision 6186)
+++ src/plugins/contrib/AutoVersioning/AutoVersioning.cpp    (working copy)
@@ -19,6 +19,8 @@
 #include <projectmanager.h>
 #include <tinyxml/tinyxml.h>
 #endif
+#include <tinyxml/tinywxuni.h>
+#include <wx/textfile.h>
 
 #include "projectloader_hooks.h"
 
@@ -173,6 +175,11 @@
                 {
                     Config.Settings.DateDeclarations = Help?true:false;
                 }
+                // GJH 03/03/10 Added manifest updating.
+                if(pElem->QueryIntAttribute("update_manifest", &Help) == TIXML_SUCCESS)
+                {
+                    Config.Settings.UpdateManifest = Help?true:false;
+                }
                 if(pElem->QueryIntAttribute("do_auto_increment", &Help) == TIXML_SUCCESS)
                 {
                     Config.Settings.DoAutoIncrement = Help?true:false;
@@ -255,6 +262,8 @@
             TiXmlElement Settings("Settings");
             Settings.SetAttribute("autoincrement", NewConfig.Settings.Autoincrement);
             Settings.SetAttribute("date_declarations", NewConfig.Settings.DateDeclarations);
+            // GJH 03/03/10 Added manifest updating.
+            Settings.SetAttribute("update_manifest", NewConfig.Settings.UpdateManifest);
             Settings.SetAttribute("do_auto_increment", NewConfig.Settings.DoAutoIncrement);
             Settings.SetAttribute("ask_to_increment", NewConfig.Settings.AskToIncrement);
             Settings.SetAttribute("language", NewConfig.Settings.Language.c_str());
@@ -478,6 +487,8 @@
 
     VersionEditorDialog.SetAuto(GetConfig().Settings.Autoincrement);
     VersionEditorDialog.SetDates(GetConfig().Settings.DateDeclarations);
+    // GJH 03/03/10 Added manifest updating.
+    VersionEditorDialog.SetManifest(GetConfig().Settings.UpdateManifest);
 
     VersionEditorDialog.SetSvn(GetConfig().Settings.Svn);
     VersionEditorDialog.SetSvnDirectory(cbC2U(GetConfig().Settings.SvnDirectory.c_str()));
@@ -513,6 +524,8 @@
     GetConfig().Scheme.BuildTimesToIncrementMinor = VersionEditorDialog.GetBuildTimesToMinorIncrement();
     GetConfig().Settings.Autoincrement = VersionEditorDialog.GetAuto();
     GetConfig().Settings.DateDeclarations = VersionEditorDialog.GetDates();
+    // GJH 03/03/10 Added manifest updating.
+    GetConfig().Settings.UpdateManifest = VersionEditorDialog.GetManifest();
     GetConfig().Settings.AskToIncrement = VersionEditorDialog.GetCommitAsk();
     GetConfig().Settings.DoAutoIncrement = VersionEditorDialog.GetCommit();
     GetConfig().Settings.Language = cbU2C(VersionEditorDialog.GetLanguage());
@@ -646,7 +659,7 @@
     {
         wxString revision,date;
         if (!QuerySvn(cbC2U(GetConfig().Settings.SvnDirectory.c_str()), revision, date))
-            wxMessageBox(_("Svn configuration files not found.\nVerify the Autoversioning svn directory."),_("Error"),wxICON_ERROR);
+            wxMessageBox(_("Possible Causes:\n-You don't have SVN installed.\n-Incompatible version of SVN.\n-SVN configuration files not found.\n\nVerify the Autoversioning SVN directory."),_("SVN Error"),wxICON_ERROR);
         headerOutput << _T("\t") << _T("\n");
         headerOutput << _T("\t") << _T("//SVN Version") << _T("\n");
         headerOutput << _T("\t") << _T("static const char ") << prefix << _T("SVN_REVISION[] = ") << _T("\"") + revision + _T("\"")<< _T(";\n");
@@ -675,6 +688,59 @@
     m_timerStatus->Start(1000);
 }
 
+/*! \brief     Update manifest.xml with the latest version string.
+ * \author     Gary Harris
+ * \date        03/03/10
+ *
+ * \return void
+ *
+ * This function inserts a new version string into the project's manifest.xml.
+ * It searches for the line containing the XML string "<Value version="X.Y.ZZZ" />"
+ * and builds and inserts a new version string based on the current AutoVersion
+ * values.
+ * \note I first used TinyXML to do the XML work but it trashes some text when rewriting the file,
+ * in particular text in the "thanks to" field that is on lines following the value field. This is usually
+ * done to wrap text onto subsequent lines in the plug-in's About dialogue and is probably not strictly
+ * valid XML. TinyXML seems not to like text on following lines.
+ */
+void AutoVersioning::UpdateManifest()
+{
+    wxFileName fnManifest(Manager::Get()->GetProjectManager()->GetActiveProject()->GetCommonTopLevelPath() + wxT("manifest.xml"));
+    wxString sPathManifest(fnManifest.GetFullPath());
+    if (wxFile::Exists(sPathManifest))
+    {
+        wxTextFile fileManifest(sPathManifest);
+        fileManifest.Open();
+        if(fileManifest.IsOpened()){
+            fileManifest.GetFirstLine();
+            wxString sLine;
+            size_t i;
+            while(sLine = fileManifest.GetNextLine())
+            {
+                if(sLine.Find(wxT("<Value version=")) !
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