Support "Solaris 10 using recent Sun Studio".

Patch from Monty Taylor <monty.taylor@gmail.com>.

diff --git a/CONTRIBUTORS.txt b/CONTRIBUTORS.txt
index 454d99b..593b3f8 100644
--- a/CONTRIBUTORS.txt
+++ b/CONTRIBUTORS.txt
@@ -51,3 +51,5 @@
     * Added @Override annotation to generated Java code where appropriate.
   Vincent Choinière <Choiniere.Vincent@hydro.qc.ca>
     * Tru64 support.
+  Monty Taylor <monty.taylor@gmail.com>
+    * Solaris 10 + Sun Studio fix.