On MacOS, the built-in standard BSD C library provides strlcat et al. **However**, for some weird reason, when
compiling the engine with pEpMIME, the compiler thinks strlcat is no longer defined, though everything links and runs
in the end.
If you see something like:
```
platform_unix.c:280:5: warning: implicitly declaring library function 'strlcat' with type 'unsigned long (char *, const char *, unsigned long)' [-Wimplicit-function-declaration]
strlcat(*first, second, size);
^
platform_unix.c:280:5: note: include the header <string.h> or explicitly provide a declaration for 'strlcat'
1 warning generated.
```
It doesn't seem to be an actual issue, and maybe it's a problem of compiling part of the engine with clang and part of it with clang++ and c++14, but anyway, watch out for it, and
don't complain to the engine team unless you figure out how to fix it ;)
## TODO
* git submodules would be a good way to handle our "copy this in because it really isn't a separate library" issue