Package: emacs;
Reported by: Left Right <olegsivokon <at> gmail.com>
Date: Fri, 15 Sep 2023 20:13:01 UTC
Severity: normal
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From: Left Right <olegsivokon <at> gmail.com> To: Stephen Leake <stephen_leake <at> stephe-leake.org> Cc: 66017 <at> debbugs.gnu.org Subject: bug#66017: Cannot install Ada mode Date: Sat, 23 Sep 2023 18:28:19 +0200
> Run "alr toolchain", select the internal Ada compiler. Only the external compiler had ever been installed. If I run (I never ran this before): ❯ alr toolchain CRATE VERSION STATUS NOTES gnat_external 13.2.1 Default Detected at /usr/bin/gnat This is what I get. Here's what I did afterwards: 1. Installed "gnat_native". 2. Ran `alr toolchain --select` and interactively selected a version of "gnat_native" and "gprbuild" so that it looks like this: ❯ alr toolchain CRATE VERSION STATUS NOTES gprbuild 22.0.1 Default gnat_native 13.1.0 Default gnat_external 13.2.1 Available Detected at /usr/bin/gnat Afterwards, I re-ran build.sh, and I get the same (?) error: wisitoken-followed_by.adb:222:07: warning: "Generate_Data" is not modified, could be declared constant [-gnatwk] gnatcoll-projects.adb:38:09: warning: unit "Ada.Unchecked_Conversion" is not referenced [-gnatwu] compilation of wisitoken-followed_by.adb failed gprbuild: *** compilation phase failed error: Command ["gprbuild", "-s", "-j0", "-p", "-P", "/home/olegs/.emacs.d/elpa/ada-mode-8.0.5/emacs_ada_mode_8.0.5_ecfdcfb4/alire/cache/dependencies/wisitoken_4.1.0_f9cd282e/build/wisitoken_alire.gpr"] exited with code 4 error: Compilation failed. And if I re-run the failed command: ❯ gprbuild -s "-j0" "-p" "-P" "/home/olegs/.emacs.d/elpa/ada-mode-8.0.5/emacs_ada_mode_8.0.5_ecfdcfb4/alire/cache/dependencies/wisitoken_4.1.0_f9cd282e/build/wisitoken_alire.gpr" wisitoken_alire.gpr:8:06: imported project file "standard_common_alire" not found wisitoken_alire.gpr:28:43: unknown package or project "Standard_Common_Alire" wisitoken_alire.gpr:28:43: wrong expression kind for attribute "default_switches" wisitoken_alire.gpr:28:84: unknown package or project "Standard_Common_Alire" wisitoken_alire.gpr:31:43: unknown package or project "Standard_Common_Alire" wisitoken_alire.gpr:31:43: wrong expression kind for attribute "default_switches" wisitoken_alire.gpr:31:82: unknown package or project "Standard_Common_Alire" wisitoken_alire.gpr:35:41: unknown package or project "Standard_Common_Alire" wisitoken_config.gpr:3:06: imported project file "stephes_ada_library.gpr" not found wisitoken_config.gpr:3:06: imported by "/home/olegs/.emacs.d/elpa/ada-mode-8.0.5/emacs_ada_mode_8.0.5_ecfdcfb4/alire/cache/dependencies/wisitoken_4.1.0_f9cd282e/config/wisitoken_config.gpr" wisitoken_config.gpr:3:06: imported by "/home/olegs/.emacs.d/elpa/ada-mode-8.0.5/emacs_ada_mode_8.0.5_ecfdcfb4/alire/cache/dependencies/wisitoken_4.1.0_f9cd282e/build/wisitoken_alire.gpr" gprbuild: "/home/olegs/.emacs.d/elpa/ada-mode-8.0.5/emacs_ada_mode_8.0.5_ecfdcfb4/alire/cache/dependencies/wisitoken_4.1.0_f9cd282e/build/wisitoken_alire.gpr" processing failed But when I run: ❯ gprbuild --version GPRBUILD Pro 24.0w (20230430) (x86_64-pc-linux-gnu) Copyright (C) 2004-2023, AdaCore This is free software; see the source for copying conditions. See your AdaCore support agreement for details of warranty and support. If you do not have a current support agreement, then there is absolutely no warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. So, it looks like maybe the version I selected through Alire is ignored? Should I perhaps uninstall distribution-installed Ada-related packages and re-try with only Alire-installed ones? Thanks! Oleg On Fri, Sep 22, 2023 at 4:29 PM Stephen Leake <stephen_leake <at> stephe-leake.org> wrote: > > Left Right <olegsivokon <at> gmail.com> writes: > > > Hello Stephen, you wrote: > > > >> This indicates you are using a compiler external to Alire, with a newer version > >> than the internal one; I only test with Alire internal compilers, for > >> consistency. > > > >> Please configure the internal Alire compiler. > > > >> I will add the tested Alire version to the documentation. > > > > I don't know what to do with Alire, but I will try to figure out. > > Run "alr toolchain", select the internal Ada compiler. > > > But please consider that anyone trying to install Ada on Linux will > > firstly try to go through the process recommended by the distro > > maintainers. > > Alire is supposed to replace that process, but it's not quite there yet. > > > In my case, it's a combination of using pacman to install gcc-ada and > > AUR (auxiliary packages not directly maintained by Arch distribution) > > to install gprbuild, adaxml, alire etc. All I've done so far to > > install Ada was to install packages from these sources. > > (Unfortunately, both documentation and execution here are lacking, and > > the process is quite complicated and error-prone). > > Apparently this ended up with Alire being configured for the external > distro Ada compiler, rather than the internal one. That should not > happen by default; perhaps you ran "alr toolchain" at some point? > > > It seems like you want me to install what gcc-ada would install, but > > through Alire. > > No, just use the default compiler provided by the default Alire installation. > > > Am I right? In other words, something that isn't provided and managed > > by the Linux distribution I'm using. This seems like a process that > > requires a lot more expertise from an average user (building any GCC > > compiler is not an easy task). Why is this the prefered choice of > > environment? > > It is supposed to require less expertise. Unfortunately, when it fails, it > is confusing and hard to diagnose. > > Part of the reason to start using Alire is to avoid version conflicts > like this! Apparently that doesn't really work. Sigh. > > > As for the documentation: it seems we are reading two different > > documentations. Is the one you are referring to available online? > > > > I was reading this: > > > https://www.gnu.org/software/emacs/manual/html_mono/ada-mode.html#Installation > > Sigh. That document is dated 2019 (see the Top node). The upstream > source has been updated since then. > > > This documentation has no mention of how to build Ada mode, nor > > anything about how Ada compiler and toolchain are meant to be set up > > etc. > > The current version refers to ELPA. > > -- > -- Stephe
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