Hi all, I'm trying to install 2.4.1 on Linux Mint 21.3. I have previously successfully compiled it from source on 22, and now I cannot work on the files produced on my other computer using the 21.3 computer because of lyx2lyx failures. So I figured I'd just compile from source on this other machine, and it is just a nightmare.
When I try to run ./configure, I get "configure: error: cannot compile a simple Qt executable. Check you have the right $QTDIR." I went to the LyxOnUbuntu wiki, which might be out of date, and tried to remove and add the stable repository, only to get the error "This PPA does not support jammy". When I looked at the stable repo index, https://launchpad.net/~lyx-devel/+archive/ubuntu/release , it became clear that this repo is not being updated anymore. So it's basically compile from source or bust. So then I followed the next tip on that wiki, which is to run $ sudo apt-get build-dep lyx And I got "E: You must put some 'deb-src' URIs in your sources.list" Now, I've already spent about 30 minutes sorting out my Qt5 installation (that took some doing, but qmake-qt5 --version tells me I am "using Qt version 5.15.3 in /usr/lib/x86_64-linux-gnu" so I thought I was all set). What is up? Upgrading used to be fairly straightforward, and now I feel like I'm spending half an afternoon package-wrangling instead of writing my papers... Maria
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