Work around Linux viewer test program catch failure

indra/llmessage/tests/llsdmessage_test.cpp

@@ -21,6 +21,7 @@
 #include <iostream>
 // std headers
 #include <stdexcept>
+#include <typeinfo>
 // external library headers
 // other Linden headers
 #include "../test/lltut.h"
@@ -63,6 +64,32 @@ namespace tut
         {
             threw = true;
         }
+        catch (const std::runtime_error& ex)
+        {
+            // This clause is because on Linux, on the viewer side, for this
+            // one test program (though not others!), the
+            // LLEventPump::DupPumpName exception isn't caught by the clause
+            // above. Warn the user...
+            std::cerr << "Failed to catch " << typeid(ex).name() << std::endl;
+            // But if the expected exception was thrown, allow the test to
+            // succeed anyway. Not sure how else to handle this odd case.
+            if (std::string(typeid(ex).name()) == typeid(LLEventPump::DupPumpName).name())
+            {
+                threw = true;
+            }
+            else
+            {
+                // We don't even recognize this exception. Let it propagate
+                // out to TUT to fail the test.
+                throw;
+            }
+        }
+        catch (...)
+        {
+            std::cerr << "Utterly failed to catch expected exception!" << std::endl;
+            // This case is full of fail. We HAVE to address it.
+            throw;
+        }
         ensure("second LLSDMessage should throw", threw);
     }