[Bug 1991525] Re: vim.gtk3 won't run after 22.04 upgrade: “libpng12.so.0: cannot open shared object file”

[Smylers]

Thank you! The ldd output included:

  libcairo-gobject.so.2 => /usr/local/lib/libcairo-gobject.so.2
(0x00007f9607200000)

It turns out that back in Ubuntu 16.04 we needed a newer libcairo to run
some external software (WeasyPrint), so libcairo 1.16.0 was installed
under /usr/local/. Deleting that makes vim.gtk work perfectly.


The libcairo now included in Ubuntu 22.04 is also version 1.16.0, but the Ubuntu-compiled one uses libpng16 (which still exists) rather than libpng12 (which doesn't).

Sorry for the incorrect bug report, and thank you for helping me to get
a working system.


** Changed in: vim (Ubuntu)
       Status: Incomplete => Invalid

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https://bugs.launchpad.net/bugs/1991525

Title:
  vim.gtk3 won't run after 22.04 upgrade: “libpng12.so.0: cannot open
  shared object file”

Status in vim package in Ubuntu:
  Invalid

Bug description:
  After upgrading a system running Ubuntu 20.04 to 22.04, vim.gtk3 no
  longer runs:

    $ vim.gtk3
    vim.gtk3: error while loading shared libraries: libpng12.so.0: cannot open shared object file: No such file or directory

  (vim.basic still runs fine).

  These are the vim packages we have installed, and their versions:

    vim:amd64/jammy-security 2:8.2.3995-1ubuntu2.1 uptodate
    vim-common:all/jammy-security 2:8.2.3995-1ubuntu2.1 uptodate
    vim-gtk3:amd64/jammy-security 2:8.2.3995-1ubuntu2.1 uptodate
    vim-gui-common:all/jammy-security 2:8.2.3995-1ubuntu2.1 uptodate
    vim-runtime:all/jammy-security 2:8.2.3995-1ubuntu2.1 uptodate
    vim-tiny:amd64/jammy-security 2:8.2.3995-1ubuntu2.1 uptodate

  Previously I did have a PPA of Vim installed from
  http://ppa.launchpad.net/jonathonf/vim/ubuntu — but that has been
  purged, and as you can see all the vim packages now installed are
  official Ubuntu jammy versions.

  libpng12 isn't in Ubuntu any more, so I think the problem is that vim
  is trying to use it, not that it's missing.

  Attached is strace output of the failure.

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