This helps to catch unused functions like the former mosh_read_line,
allows the compiler to make better inlining decisions, and reduces the
binary size a bit.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
This tests cryptographic primitives implemented by others. It uses the same
interfaces and indeed the same compiled object code as the Mosh client and
server. It does not particularly test any code written for the Mosh project.