Co-dependent defcustom variables

Heime <[email protected]>
Newsgroups gmane.emacs.help
Message-ID <4_nz9pQVwmOYVPMJ-vWkkKIoOxgniZA07ou2f5uYfQAcRp0NWLU84nibCaik6N10Atq9hmPvf1Hlw8Acd8FQwlOl3vS3q6BXYiVJDQ2iK-I=@protonmail.com> 
It seems things get very complicated if I try to make two 
defcustom variables that are codependent.  Meaning that
changing one has to update another.
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