Re: vc-fossil to non-gnu elpa?

[Alfred M. Szmidt]

[Lets try this again and send it to emacs-devel@.  Sorry for the noise.]

So trying to get back to adding vc-fossil to non-GNU ELPA, I tried to
follow the instructions in the README.org, added this to elpa-packages

 ("vc-fossil"           :url "https://github.com/ams/vc-fossil";)

And then did,

   ~/nongnu-elpa $ gmake -f GNUmakefile build/vc-fossil
   emacs --batch -l /home/ams/nongnu-elpa/admin/elpa-admin.el   \
            -f elpaa-batch-make-one-package vc-fossil
   Cloning branch vc-fossil:
   +refs/heads/*:refs/remotes/origin/Preparing worktree (new branch 
'elpa/vc-fossil')
   HEAD is now at f365e4389 vc-fossil.el: Update from fossil.
   *
   
   ======== Building tarball archive-devel/vc-fossil-20210928.0...tar...
   Build error for archive-devel/vc-fossil-20210928.0...tar: (error "Invalid 
version syntax: `20210928.0..'")
   ######## Build of package archive-devel/vc-fossil-20210928.0...tar FAILED!!
   ======== Building tarball archive/vc-fossil-20210928.tar...
   ######## Built new package archive/vc-fossil-20210928.tar!

The error message is strange, and I don't understand it.  Any idea
what is going on?