Child enclave has a C, C++, Fortran, PL/I, or Language Environment-conforming assembler main routine

If the main routine of the child enclave is written in C, C++, Fortran, PL/I, or in Language Environment-conforming assembler, the child enclave gets its runtime options through a merge from the usual sources (see Using runtime options for more information). Therefore, you can set runtime options on an enclave-by-enclave basis.