Using NIMBLE from C++

[technosf]

I'm running a C++ app and trying to fold in NIMBLE, but hitting some roadblocks - I'm also a C/C++ neophyte, and would appreciate some pointers and advice on approaches.

Specifically, I'm trying to get the blemesh example working under C++. As is, under C, it compiles and runs. Taking the C code and extrapolating it into a C++ class, I can get to the point where my C++ is compiling with out error, but individual files in NIMBLE are choking with C++ compile errors, even though the NIBLE code has #ifdef __cplusplus clauses.

The errors are accumulating in access.h and glue.h

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esp-idf/components/bt/host/nimble/nimble/nimble/host/mesh/include/mesh/access.h:194:15: error: expected identifier before numeric constant
  .groups = { [0 ... (CONFIG_BT_MESH_MODEL_GROUP_COUNT - 1)] =         \

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esp-idf/components/bt/host/nimble/nimble/nimble/host/mesh/include/mesh/access.h:194:61: error: expected '{' before '=' token
  .groups = { [0 ... (CONFIG_BT_MESH_MODEL_GROUP_COUNT - 1)] =         \

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/esp-idf/components/bt/host/nimble/nimble/nimble/host/mesh/include/mesh/access.h:24:35: error: no match for 'operator=' (operand types are 'mesh::<lambda()>' and 'int')
 #define BT_MESH_ADDR_UNASSIGNED   0x0000
                                   ^~~~~~

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esp-idf/components/bt/host/nimble/nimble/nimble/host/mesh/include/mesh/glue.h:142:32: error: invalid application of 'sizeof' to incomplete type 'bt_mesh_elem []'
 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))

Thanks in advance!