REAL and COMPLEX macros in chameleon public header?

COMPLEX and REAL macros are defined here (public header)

(this is substituted in generated headers by this code)

but I cannot find (with grep) any code where they are used, and they actually conflict with some C++ openmpi headers (even if you don't use the MPI c++ interface (which is deprecated), the header get pulled in anyway, as soon as openmpi was installed with the configure option '--enable-mpi-cxx')

To reproduce the following you need to have an openmpi configured with '--enable-mpi-cxx' option.

[tmijieux@tontonbox: ~]$ cat test.cpp 
#include <morse.h>
#include <mpi.h>

int main()
{
    return 0;
}


[tmijieux@tontonbox: ~]$ mpic++ test.cpp -I${CHAMELEON_DIR}/include/  -I${CHAMELEON_DIR}/include/chameleon   -I${CHAMELEON_DIR}/include/libhqr
In file included from /usr/include/openmpi/ompi/mpi/cxx/mpicxx.h:191:0,
                 from /usr/include/mpi.h:2704,
                 from test.cpp:2:
/usr/include/openmpi/ompi/mpi/cxx/constants.h:141:28: error: declaration does not declare anything [-fpermissive]
 OMPI_DECLSPEC extern const Datatype REAL;

This error basically means that REAL was substituted to an empty string, and the declaration is void.

[tmijieux@tontonbox: ~]$ mpic++ --version
g++ (GCC) 7.1.1 20170630
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[tmijieux@tontonbox: ~]$ mpirun --version
mpirun (Open MPI) 2.1.1

Report bugs to http://www.open-mpi.org/community/help/