[PATCH 1/2] Bionic lacks ttyname_r; provide a workaround

[Matt Whitlock]

I think providing an alternative implementation of ttyname_r() in missing_syscalls.c won't work. Busybox cannot be statically linked when ttyname_r is defined in missing_syscalls.o:

ld: error: /usr/local/arm-linux-androideabi/bin/../sysroot/usr/lib/libc.a(stubs.o): multiple definition of 'ttyname_r'
ld: libbb/lib.a(missing_syscalls.o): previous definition here