Warning (comp): ~/.config/emacs/some/path.el: Error: Wrong type
argument proper-list-p
reddit / emacs

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pedzsanReddit · 2022-12-04 19:35

I just started using `--with-native-compilation` and I was getting
this error (see title).

First, native compilation comes in [two modes](https://www.gnu.org/sof
tware/emacs/manual/html_node/elisp/Native_002dCompilation-
Functions.html): synchronous and asynchronous.  I was getting the
error when the file was being compiled asynchronously.

It turns out that I'm using [leaf](https://github.com/emacs-
straight/leaf) where `leaf` is a macro.  Asynchronous starts fresh and
so it doesn't know that `leaf` is a macro and gets confused.  So the
remedy is to `(eval-when-compile (require 'leaf))` at the top of the
file.

TL; DR -- the error above (with a file path and nothing after the
`proper-list-p` is most likely an undefined macro hit during
asynchronous compilation.