What does this do?

make -k "[a 5432 character string containing only A]"

From make man page

    -k, --keep-going
    Continue as much as possible after an error.  While the target that failed, and those that depend on it, cannot be remade, the other dependencies of these targets can be processed all the same.

Actually, there is no need for -k I was trying to point that even very common programs have (stack) buffer overflows and nobody cares to fix them.

Ouch!