You don't have to remove the following instruction
when you apply the following diff because patch command
will ignore this instruction.

How to apply the diff and re-make:

cd /path/to/DaqComponents/src
patch --backup -p2 < /path/to/this/2009.10.ParameterServer-memleak.patch
make -f Makefile.DaqOperator

diff -r 8ef8b149e0db src/ParameterServer.h
--- a/src/ParameterServer.h	Wed Apr 07 14:42:46 2010 +0900
+++ b/src/ParameterServer.h	Wed Jun 09 13:22:56 2010 +0900
@@ -186,6 +186,7 @@ namespace DAQMW {
 	    buf[0] = size;
 	    memcpy(&buf[1], m_msg.c_str(), size);
 	    m_newSock.sendAll(buf, length);
+	    delete [] buf;
 	    m_newSock.disconnect();
 	  }
 	} catch ( SockException& e ) {