Yes, that's what I've found. I can also confirm that compiling with 1
thread works around it. It's only a problem w/ gmake -jN where N is > 1 (I
run w/ 8 or 12 or so typically).


Aaron


On Fri, Dec 29, 2023 at 1:43 PM, Andrea Corallo <acorallo@gnu.org> wrote:

> Eli Zaretskii <eliz@gnu.org> writes:
>
> From: Aaron Jensen <aaronjensen@gmail.com>
> Date: Thu, 28 Dec 2023 09:05:25 -0500
>
> On macOS, I am often getting this when building Emacs from scratch. Could
> this be a race condition with a parallel build?
>
> I bisected and the problematic commit is:
> e670412a3e101e70dc26e021f467faece8cb7f6b
>
> In toplevel form:
> org/org-element.el:64:2: Error: Eager macro-expansion failure:
> (native-compiler-error (lambda (arg322 &optional arg323) (let ((f
> #'macroexpand)) (funcall f arg322 arg323))) "Compiling
> /private/var/tmp/emacs-plusA30-20231227-
> 10652-1cz0rs/.brew_home/.emacs.d/eln-cache/30.0.50-69afc345/subr--trampoline-6d6163726f657870616e64_macroexpand_0.eln...
> File already exists:
> /private/var/tmp/emacs-plusA30-20231227-10652-1cz0rs/.brew_home/.emacs.d/eln-cache/30.0.50-69afc345/subr--trampoline-6d6163726f657870616e64_macroexpand_0.eln
>
>
> Error: file-already-exists (\"File already exists\"
> \"/private/var/tmp/emacs-plusA30-20231227-10652-1cz0rs/.brew_home/.emacs.d/eln-cache/30.0.50-69afc345/subr--trampoline-6d6163726f657870616e64_macroexpand_0.eln\")
> mapbacktrace(#f(compiled-function (evald func args flags) #<bytecode
> -0x1fcb3a734512f81>)) debug-early-backtrace()
> debug-early(error (file-already-exists \"File already exists\"
> \"/private/var/tmp/emacs-plusA30-20231227-10652-1cz0rs/.brew_home/.emacs.d/eln-cache/30.0.50-69afc345/subr--trampoline-6d6163726f657870616e64_macroexpand_0.eln
>
> \"))
> rename-file(\"/private/var/tmp/emacs-plusA30-20231227-10652-1cz0rs/.brew_home/.emacs.d/eln-cache/30.0.50-69afc345/subr--trampoline-6d6163726f657870616e64_macroexpand_08i0tl8.eln.tmp\"
>
> \"/private/var/tmp/emacs-plusA30-20231
> 227-10652-1cz0rs/.brew_home/.emacs.d/eln-cache/30.0.50-69afc345/subr--trampoline-6d6163726f657870616e64_macroexpand_0.eln\")
> comp-delete-or-replace-file(\"/private/var/tmp/emacs-plusA30-20231227-10652-1cz0rs/.brew_home/.emacs.d/eln-cache/30.0.50-69afc345/subr--trampoline-6d6163726f657870616e64_macroexpand_0.eln\"
>
> \"/private/var/tmp/emacs-plusA30
> -20231227-10652-1cz0rs/.brew_home/.emacs.d/eln-cache/30.0.50-69afc345/subr--trampoline-6d6163726f657870616e64_macroexpand_08i0tl8.eln.tmp\")
> comp--compile-ctxt-to-file(\"/private/var/tmp/emacs-plusA30-20231227-10652-1cz0rs/.brew_home/.emacs.d/eln-cache/30.0.50-69afc345/subr--trampoline-6d6163726f657870616e64_macroexpand_0.eln\")
> comp-compile-ctxt-to-file(\"/private/var/tmp/emacs-plusA30-20231227-10652-1cz0rs/.brew_home/.emacs.d/eln-cache/30.0.50-69afc345/subr--trampoline-6d6163726f657870616e64_macroexpand_0.eln\")
> comp-final1()
> load-with-code-conversion(\"/private/var/tmp/emacs-int-comp-subr--trampoline-6d6163726f657870616e64_macroexpand_0-haajZW.el\"
>
> \"/private/var/tmp/emacs-int-comp-subr--trampoline-6d6163726f657870616e64_macroexpand_0-haajZW.e
> l\" nil t)
> command-line-1((\"-l\"
> \"/private/var/tmp/emacs-int-comp-subr--trampoline-6d6163726f657870616e64_macroexpand_0-haajZW.el\"))
> command-line()
> normal-top-level()
> ")
> gmake[3]: *** [Makefile:330: org/org-element.elc] Error 1
>
> Thanks. Adding Andrea to the discussion.
>
> Hi all,
>
> reading from emacs-devel... is it still confirmed that the commit that
> introduced this is e670412a3e101e70dc26e021f467faece8cb7f6b?
>
> Thanks
>
> Andrea
>