SNOPT interface is now optional and needs to be specified by the user. This prevents an error when snopt7 is available on MacOS and Apple Clang is being used, even if it does not support Fortran, which will cuase an error.
SNOPT interface is now optional and needs to be specified by the user. This prevents an error when snopt7 is available on MacOS and Apple Clang is being used, even if it does not support Fortran, which will cuase an error.

PSOPT/psopt,PSOPT/psopt