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Some background, I have some code that sets a default compile command depending on the mode. However, in some files, I've used the add-file-local-variable-prop-line to create a more specific command, and this overwrites that. I need to check if compile-command has been defined for the file, so I don't assign a default value when the file already has a compile-command.

I've tried using file-local-variables-alist, but it's value is nil, even when there are local variables.

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Where are you trying to use file-local-variables-alist?

If you're using a mode hook, local variables haven't been processed yet.

Use hack-local-variables-hook.

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  • I'm not using a mode hook, so I expect it's something else.
    – user2699
    Oct 20, 2015 at 20:22
  • That doesn't answer my question, though.
    – phils
    Oct 20, 2015 at 23:24
  • Oh, I'm trying to use it a function bound to a keyboard shortcut. It looks like something in my init file was causing some file local variables to not be processed.
    – user2699
    Oct 21, 2015 at 19:38
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    I guess. Check with C-h v to see whether the variable has a buffer-local value or not. If not, then you could use recursive bisection on your config until you figure out the cause.
    – phils
    Oct 22, 2015 at 0:28

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