build: Fixed some build warnings.
build: Fixed some build warnings.

jt1/honeypot-libssh,taikoo/libssh,nviennot/libssh,rofl0r/libssh,substack/libssh,mwgoldsmith/ssh,robxu9/libssh,substack/libssh,taikoo/libssh,rofl0r/libssh,Distrotech/libssh,sebadoom/libssh,jt1/honeypot-libssh,DouglasHeriot/libssh,mwgoldsmith/libssh,pouete/libssh,pouete/libssh,mwgoldsmith/libssh,wangshawn/libssh,miloj/libssh-v0.5,jt1/honeypot-libssh,pouete/libssh,rofl0r/libssh,taikoo/libssh,jahrome/libssh,DouglasHeriot/libssh,miloj/libssh-v0.5,robxu9/libssh,Distrotech/libssh,miloj/libssh-v0.5,nviennot/libssh,sebadoom/libssh,wangshawn/libssh,DouglasHeriot/libssh,Distrotech/libssh,elastichosts/libssh,mwgoldsmith/ssh,nviennot/libssh,jahrome/libssh,taikoo/libssh,miloj/libssh-v0.5,sebadoom/libssh,rofl0r/libssh,Distrotech/libssh,kedazo/libssh,kedazo/libssh,jt1/honeypot-libssh,jahrome/libssh,kedazo/libssh,pouete/libssh,mwgoldsmith/libssh,bigcat26/libssh-mod,bigcat26/libssh-mod,substack/libssh,bigcat26/libssh-mod,mwgoldsmith/libssh,wangshawn/libssh,wangshawn/libssh,DouglasHeriot/libssh,kedazo/libssh,nviennot/libssh,bigcat26/libssh-mod,jahrome/libssh,elastichosts/libssh,sebadoom/libssh,robxu9/libssh,substack/libssh,mwgoldsmith/ssh,elastichosts/libssh,mwgoldsmith/ssh,robxu9/libssh