Andrea Corallo <acorallo@HIDDEN>
to control <at> debbugs.gnu.org.
Full text available.Eli Zaretskii <eliz@HIDDEN>
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From: Brian Leung <leungbk@HIDDEN>
To: bug-gnu-emacs@HIDDEN
Subject: 30.0.50; Unable to install external packages with Nix after recent
native-compilation changes
Date: Thu, 25 May 2023 11:12:58 +0000
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Starting with the recent batch of native-comp commits ending with
and including Emacs commit
b2b2be98da5825e6bc130999ffe38f5ed615586a, using the Nix package
manager I cannot install an Emacs containing natively-compiled
external packages. (I have no problems on Emacs commit
f4de81af8fc54ef278cdb76fbc5885ed7d05b2d7, which is the commit
immediately preceding the first of the recent native-comp commits)
Building core Emacs (with native compilation) is successful, but I
encounter problems upon running
(https://github.com/nixos/nixpkgs/blob/8fbdc4e6114795323ad2b74d13e1c842c5618b78/pkgs/build-support/emacs/melpa.nix#L99-L102):
> emacs --batch -Q \
> -l "$elpa2nix" \
> -f elpa2nix-install-package \
> "$archive" "$out/share/emacs/site-lisp/elpa"
This fails when trying to run package-tar-file-info
(https://github.com/nixos/nixpkgs/blob/8fbdc4e6114795323ad2b74d13e1c842c5618b78/pkgs/build-support/emacs/elpa2nix.el#L14-L15). The
full backtrace is here:
> Error: error ("Can't find define-package in
> vterm-20230417.424/vterm-pkg.el")
> mapbacktrace(#f(compiled-function (evald func args flags)
> #<bytecode -0xe76c55f6510e41>))
> debug-early-backtrace()
> debug-early(error (error "Can't find define-package in
> vterm-20230417.424/vterm-pkg.el"))
> error("Can't find define-package in %s"
> "vterm-20230417.424/vterm-pkg.el")
> package-tar-file-info()
> (if (derived-mode-p 'tar-mode) (package-tar-file-info)
> (package-buffer-info))
> (let ((pkg-desc (if (derived-mode-p 'tar-mode)
> (package-tar-file-info) (package-buffer-info))))
> (package-unpack pkg-desc) pkg-desc)
> elpa2nix-install-from-buffer()
> (progn (if is-tar (insert-file-contents-literally file)
> (insert-file-contents file)) (if is-tar (progn (tar-mode)))
> (elpa2nix-install-from-buffer))
> (unwind-protect (progn (if is-tar
> (insert-file-contents-literally file) (insert-file-contents
> file)) (if is-tar (progn (tar-mode)))
> (elpa2nix-install-from-buffer)) (and (buffer-name
> temp-buffer) (kill-buffer temp-buffer)))
> (save-current-buffer (set-buffer temp-buffer) (unwind-protect
> (progn (if is-tar (insert-file-contents-literally file)
> (insert-file-contents file)) (if is-tar (progn (tar-mode)))
> (elpa2nix-install-from-buffer)) (and (buffer-name
> temp-buffer) (kill-buffer temp-buffer))))
> (let ((temp-buffer (generate-new-buffer " *temp*" t)))
> (save-current-buffer (set-buffer temp-buffer) (unwind-protect
> (progn (if is-tar (insert-file-contents-literally file)
> (insert-file-contents file)) (if is-tar (progn (tar-mode)))
> (elpa2nix-install-from-buffer)) (and (buffer-name
> temp-buffer) (kill-buffer temp-buffer)))))
> (let ((is-tar (string-match "\\.tar\\'" file))) (let
> ((temp-buffer (generate-new-buffer " *temp*" t)))
> (save-current-buffer (set-buffer temp-buffer) (unwind-protect
> (progn (if is-tar (insert-file-contents-literally file)
> (insert-file-contents file)) (if is-tar (progn (tar-mode)))
> (elpa2nix-install-from-buffer)) (and (buffer-name
> temp-buffer) (kill-buffer temp-buffer))))))
> elpa2nix-install-file("/build/packages/vterm-20230417.424.tar")
> (progn (setq package-user-dir elpa) (elpa2nix-install-file
> archive))
> (let ((archive x0) (elpa x2)) (progn (setq package-user-dir
> elpa) (elpa2nix-install-file archive)))
> (if (null x3) (let ((archive x0) (elpa x2)) (progn (setq
> package-user-dir elpa) (elpa2nix-install-file archive))))
> (let* ((x2 (car-safe x1)) (x3 (cdr-safe x1))) (if (null x3)
> (let ((archive x0) (elpa x2)) (progn (setq package-user-dir
> elpa) (elpa2nix-install-file archive)))))
> (if (consp x1) (let* ((x2 (car-safe x1)) (x3 (cdr-safe x1)))
> (if (null x3) (let ((archive x0) (elpa x2)) (progn (setq
> package-user-dir elpa) (elpa2nix-install-file archive))))))
> (let* ((x0 (car-safe command-line-args-left)) (x1 (cdr-safe
> command-line-args-left))) (if (consp x1) (let* ((x2 (car-safe
> x1)) (x3 (cdr-safe x1))) (if (null x3) (let ((archive x0)
> (elpa x2)) (progn (setq package-user-dir elpa)
> (elpa2nix-install-file archive)))))))
> (if (consp command-line-args-left) (let* ((x0 (car-safe
> command-line-args-left)) (x1 (cdr-safe
> command-line-args-left))) (if (consp x1) (let* ((x2 (car-safe
> x1)) (x3 (cdr-safe x1))) (if (null x3) (let ((archive x0)
> (elpa x2)) (progn (setq package-user-dir elpa)
> (elpa2nix-install-file archive))))))))
> elpa2nix-install-package()
> command-line-1(("-l"
> "/nix/store/4jj63z4v1xp13rh2md053dccq920hd45-elpa2nix.el"
> "-f" "elpa2nix-install-package"
> "/build/packages/vterm-20230417.424.tar"
> "/nix/store/rf3rsbn6sa1l5v8pbsk02g0nrm5a7pnr-emacs-vterm-20230417.424/share/emacs/site-lisp/elpa"))
> command-line()
> normal-top-level()
I do not encounter any problems if I do not native-compile, or if
I use an earlier commit as I mentioned.
Unlike the possibly-related and unresolved bug#63288, the error I
am now getting appears to be consistently reproducible when I
revert ea9831bb3cb4878273f6f848051c9b8c3c76d5f1, which in a Nix
sandbox would non-deterministically cause external packages to
fail during native compilation. I have also noticed the same error
occurring when I leave ea9831bb3cb4878273f6f848051c9b8c3c76d5f1
unreverted, though I haven't tested this latter scenario often
enough to be sure that ea9831bb3cb4878273f6f848051c9b8c3c76d5f1
has no impact since I was worried that the non-determinism would
complicate things.
CCing Andrea Corallo.
Brian Leung <leungbk@HIDDEN>:bug-gnu-emacs@HIDDEN.
Full text available.bug-gnu-emacs@HIDDEN:bug#63716; Package emacs.
Full text available.
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