Ready to install.

zsh/configs/post/completion.zsh

@@ -0,0 +1,15 @@
+ 
+# load our own completion functions
+fpath=(~/.zsh/completion /usr/local/share/zsh/site-functions $fpath)
+
+# completion; use cache if updated within 24h
+autoload -Uz compinit
+if [[ -n $HOME/.zcompdump(#qN.mh+24) ]]; then
+  compinit -d $HOME/.zcompdump;
+else
+  compinit -C;
+fi;
+
+# disable zsh bundled function mtools command mcd
+# which causes a conflict.
+compdef -d mcd