Fix cmake

contrib/amqpcpp-cmake/CMakeLists.txt

@@ -16,6 +16,7 @@ set (SRCS
     ${LIBRARY_DIR}/src/flags.cpp
     ${LIBRARY_DIR}/src/linux_tcp/openssl.cpp
     ${LIBRARY_DIR}/src/linux_tcp/tcpconnection.cpp
+    ${LIBRARY_DIR}/src/inbuffer.cpp
     ${LIBRARY_DIR}/src/receivedframe.cpp
     ${LIBRARY_DIR}/src/table.cpp
     ${LIBRARY_DIR}/src/watchable.cpp