Geoff Chappell - Software Analyst
This option names the front-end C compiler.
The required argument consists of whatever follows immediately within the same command-line token, else is the whole of the next command-line token.
Whatever is named by pathname takes the place of the C1 module.
As with all the capital-B options, this one makes no formal appearance in the product documentation. However, its existence is noted in the documentation for command-line error D2027.