Patch by Robert Scheck <robert@fedoraproject.org> for zarafa >= 6.40.0, which removes a
wrong include causing a build failure on native Fedora 11 and/or later as well as on RHEL
4 and/or later. According to some Kerberos people, "com_err.h" is already included by the
"krb5.h" include and thus doesn't need to be included once more.

The build failure on RHEL/Fedora is caused due the non-existence of this include, on RHEL/
Fedora, only "<et/com_err.h>" would be available. If you really need the "com_err.h" for
some other Linux distributions (where I didn't find a real difference so far), you have to
conditionalize the include using preprocessor flags after detection in ./configure.

--- zarafa-6.40.0/provider/libserver/ECKrbAuth.cpp	2010-05-31 19:28:59.000000000 +0200
+++ zarafa-6.40.0/provider/libserver/ECKrbAuth.cpp.krb5	2010-06-05 21:48:51.000000000 +0200
@@ -58,7 +58,6 @@
 // error_message() is wrongly typed in c++ context
 extern "C" {
 #include <krb5.h>
-#include <com_err.h>
 }
 
 ECRESULT ECKrb5AuthenticateUser(const std::string &strUsername, const std::string &strPassword, std::string *lpstrError)