Actually, I had tried that and a few other things. But indeed the problem was that I was building Emacs from a shell console within an older version of Emacs. I rarely rebuild Emacs (but now I need the newest version as the latest ses.el uses function format-prompt that was not on my older version of Emacs). So, not rebuilding often, I had forgotten that it does not work form an Emacs console, but it came to my mind that I had already come accross this issue quite a while ago. FYI, what fails is the emacs dump step. Maybe this limitation should be documented in the INSTALL.REPO file … BTW, I boldly overwrote my older Emacs with the new one --- Banzai ! --- and a few things are not working any longer : 1. jdee does not byte-compile any longer, here is an example: Compiling file /Users/vincentbelaiche/Documents/Personnel/Projects/jdee/jdee-bug.el at Sat Mar 26 18:38:16 2022 Entering directory ‘/Users/vincentbelaiche/Documents/Personnel/Projects/jdee/’ jdee-bug.el:31:2: Error: Symbol’s value as variable is void: initialize-instance It seems that there is a change in the way eieio works, probably JDEE is outdated. 2. I was using a theme, flatland-black-theme.el, and loading it does not seems to have any effect --- well, I don't get a black theme. Vincent. ________________________________ De : Po Lu Envoyé : samedi 26 mars 2022 01:34 À : Vincent Belaïche Cc : emacs-devel Objet : Re: master HEAD does not compile on MacOS Vincent Belaïche writes: > Dear all, > > I tried to compile the latest version, as my current version of Emacs > does not have format-prompt which the latest ses.el on the git repo > uses, but the compilation fails on MacOS (it used to work…). Did you try running "make bootstrap"?