Spell check only works in one tab in MacVim

Question

If I open a single file with MacVim, and I use :set spell, spell check works fine. However, if I open more tabs within that instance of MacVim, and I use :set spell, spell check does not work for those tabs. Although, it still works for the first tab I opened. How can I get spell check to work for the other tabs I opened?

Answer 1

It works for me. After

$ mvim /tmp/foo.txt
:set spell
:tab sp /tmp/bar.txt
:set spell?

I see that 'spell' is set in the second buffer; "foo" and "quux" are highlighted as not real words, but "bar" is good.

Answer 2

Based on my experimentation, it depends when you :set spell.
If I :set spell and then open new tabs, the setting carries over. However, if I create several new tabs and only then :set spell on a single tab, it applies to that tab alone].

This wiki page has instructions on how to run a command in multiple tabs. It looks like you want :tabdo set spell.