Upstream does this directly in writer2latex

---
 nat/convertisseur/ConvertisseurOpenOffice.java |   13 +++++++++++++
 1 file changed, 13 insertions(+)

--- a/nat/convertisseur/ConvertisseurOpenOffice.java
+++ b/nat/convertisseur/ConvertisseurOpenOffice.java
@@ -22,6 +22,7 @@ package nat.convertisseur;
 import gestionnaires.GestionnaireErreur;
 import nat.Nat;
 import nat.Transcription;
+import nat.ConfigNat;
 // *** writer2latex ***
 /*import writer2latex.Writer2XHTML;
 import writer2latex.office.MIMETypes;*/
@@ -102,6 +103,18 @@ public class ConvertisseurOpenOffice ext
 		    fos.flush();
 		    fos.close();
 		}*/
+
+		// Replace network DTD link with on-disk link
+		try
+		{
+		final Runtime rt = Runtime.getRuntime();
+		Process proc = rt.exec("/bin/sed -i -e 2s_http://www.w3.org/Math/DTD/mathml2/xhtml-math11-f.dtd_" + ConfigNat.getInstallFolder()+"xsl/mmlents/windob.dtd_g " + Transcription.fTempXHTML);
+		proc.waitFor();
+		}
+		catch(Exception e)
+		{
+		}
+
 		//conversion de xhtml vers interne
 		ConvertisseurXML convXML = new ConvertisseurXML(Transcription.fTempXHTML, cible);
 		retour = convXML.convertir(gest);
