disable clang-format for cmake generated code, fix missing include

Author: biddisco

cmake/config.hpp.in

@@ -15,20 +15,22 @@
 #define OOMPH_ENABLE_DEVICE HWMALLOC_ENABLE_DEVICE
 #define OOMPH_DEVICE_RUNTIME HWMALLOC_DEVICE_RUNTIME
 #if defined(HWMALLOC_DEVICE_HIP)
-# define OOMPH_DEVICE_HIP
+#   define OOMPH_DEVICE_HIP
 #elif defined(HWMALLOC_DEVICE_CUDA)
-# define OOMPH_DEVICE_CUDA
+#   define OOMPH_DEVICE_CUDA
 #elif defined(HWMALLOC_DEVICE_EMULATE)
-# define OOMPH_DEVICE_EMULATE
+#   define OOMPH_DEVICE_EMULATE
 #else
-# define OOMPH_DEVICE_NONE
+#   define OOMPH_DEVICE_NONE
 #endif
 
 #cmakedefine01 OOMPH_USE_FAST_PIMPL
 #cmakedefine01 OOMPH_ENABLE_BARRIER
-#define OOMPH_RECURSION_DEPTH @OOMPH_RECURSION_DEPTH @
+// clang-format off
+#define OOMPH_RECURSION_DEPTH @OOMPH_RECURSION_DEPTH@
+// clang-format on
 
-#define OOMPH_VERSION @OOMPH_VERSION_NUMERIC @
-#define OOMPH_VERSION_MAJOR @OOMPH_VERSION_MAJOR @
-#define OOMPH_VERSION_MINOR @OOMPH_VERSION_MINOR @
-#define OOMPH_VERSION_PATCH @OOMPH_VERSION_PATCH @
+#define OOMPH_VERSION @OOMPH_VERSION_NUMERIC@
+#define OOMPH_VERSION_MAJOR @OOMPH_VERSION_MAJOR@
+#define OOMPH_VERSION_MINOR @OOMPH_VERSION_MINOR@
+#define OOMPH_VERSION_PATCH @OOMPH_VERSION_PATCH@

include/oomph/detail/communicator_helper.hpp

@@ -13,6 +13,7 @@
 #include <boost/callable_traits.hpp>
 #include <oomph/request.hpp>
 #include <oomph/util/pool_factory.hpp>
+#include <oomph/message_buffer.hpp>
 //#include <oomph/util/tag_range.hpp>
 
 #define OOMPH_CHECK_CALLBACK_F(CALLBACK, RANK_TYPE, TAG_TYPE)                                      \