internal-macroexpand-for-load: Eager macro-expansion failure: (void-function incf) #97

Hello folks,

I got the message "internal-macroexpand-for-load: Eager macro-expansion failure: (void-function incf)" when calling org-plot/gnuplot on a table. I solved it by replacing incf by cl-incf in the gnuplot-context.el file. To reproduce this, install the latest package on my Emacs version and follow the https://orgmode.org/org.html#Org-Plot-1 guide.

My Emacs version

GNU Emacs 30.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.49, cairo version 1.18.4) of 2025-03-31, modified by Debian