This is a temporary workaround for what is surely a gcc bug on Sparc.
Submitted as bz #529299


diff -Naur mysql-5.1.39.orig/storage/ndb/src/kernel/blocks/dbacc/DbaccMain.cpp mysql-5.1.39/storage/ndb/src/kernel/blocks/dbacc/DbaccMain.cpp
--- mysql-5.1.39.orig/storage/ndb/src/kernel/blocks/dbacc/DbaccMain.cpp	2009-09-04 12:21:16.000000000 -0400
+++ mysql-5.1.39/storage/ndb/src/kernel/blocks/dbacc/DbaccMain.cpp	2009-10-15 22:19:07.000000000 -0400
@@ -8538,11 +8538,7 @@
   default:
     tmp = 0;
   }
-  memcpy(signal->theData, &tmp, 8); /* must be memcpy, gives strange results on
-				     * ithanium gcc (GCC) 3.4.1 smp linux 2.4
-				     * otherwise
-				     */
-  //  Uint32 * src = (Uint32*)&tmp;
-  //  signal->theData[0] = src[0];
-  //  signal->theData[1] = src[1];
+  Uint32 * src = (Uint32*)&tmp;
+  signal->theData[0] = src[0];
+  signal->theData[1] = src[1];
 }