[Users] check spelling on version 3.17.8

[jacques silberstein]

Hello,

On version 3.17.3 the preference menu as include an entry for the check spelling. And it works find.
On neuwer version: 

Claws Mail version 3.17.8-23-g1ebf74-dirty
runtime GTK+ 2.24.32 / GLib 2.58.3
buildtime GTK+ 2.24.32 / GLib 2.58.3
Compiled-in features:
 GnuTLS
 IPv6
 iconv
 libetpan 1.9
 libSM

I have no check spelling option in the preferences .

Wath to do ?

regards

Jacques