Used typeset to define the local array. This does the trick on linux.

functions/utilities.zsh

@@ -124,7 +124,8 @@ fi
 # deprecated segments as keys, the values contain the new
 # segment names.
 print_deprecation_warning() {
-  local -A raw_deprecated_segments=(${(kvP)1})
+  typeset -AH raw_deprecated_segments
+  raw_deprecated_segments=(${(kvP@)1})
 
   for key in ${(@k)raw_deprecated_segments}; do
     if [[ -n "${POWERLEVEL9K_LEFT_PROMPT_ELEMENTS[(r)$key]}" ]] || [[ -n "${POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS[(r)$key]}" ]]; then

powerlevel9k.zsh-theme

@@ -754,14 +754,14 @@ powerlevel9k_init() {
     print -P "You should put: %F{blue}export TERM=\"xterm-256color\"%f in your \~\/.zshrc"
   fi
 
-  typeset -Ah deprecated_segments
+  # Display a warning if deprecated segments are in use.
+  typeset -AH deprecated_segments
   # old => new
   deprecated_segments=(
     'longstatus'      'status'
   )
   print_deprecation_warning deprecated_segments
 
-
   setopt prompt_subst
   
   setopt LOCAL_OPTIONS