Hi,
I'm in the middle of porting OpenMPI. I got some trouble that I have to use CMakelists.txt to pass the Compilation Flag through Makefile.
I got this error message while trying to compile:
error: ‘OMPI_MPIHANDLES_DLL_PREFIX’ undeclared (first use in this function)
error: ‘OMPI_MSGQ_DLL_PREFIX’ undeclared (first use in this function)
And I found the OMPI_MPIHANDLES_DLL_PREFIX in CMakelist.txt as shown below: