Hi Ralf, I am forwarding your message to zsh-workers list. To summarise the issue zsh modules are not compiled with upcoming autoconf 2.62 and Ralf successfully identified that zsh/Src/mkmakemod.sh does some unportable stuff :     # check 2.13, 2.50, and 2.60 syntaxes     if grep '%@D@%D%' config.status >/dev/null ||        grep ',@D@,D,' config.status >/dev/null ||        grep ',@D@,|#_!!_#|D,' config.status >/dev/null; then         is_dynamic=true     else         is_dynamic=false     fi So the question is, is this thing needed at all, if yes why? -- Never learn by your mistakes, if you do you may never dare to try again.