Questions reqarding packaging and conventions

[Ignacio Coterillo <ignacio.coterillo@gmail.com>]

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Hello,

I'm trying to debug and fix issues with Kerberos based authentication on both Icecat and
qutebrowser and got a few questions:

Via strace I found that icecat tries load `libgssapi.so` which doesn't exist.

Trivially creating the file as a symbolic link to the `libgssapi_krb5.so` provided
by the `mit-krb5` package and exposing via LD_LIBRARY_PATH solves the issue and
fixes Kerberos based authentication.

- Question 1: Should this be fixed in the mit-krb5 package or in the icecat package?

- Question 2: What would be the best way of creating this link in a package?

  I've played with creating a modified `mit-krb5` (i.e. `my-mit-krb5`) with the
  following additional build phase:

  (modify-phases %standard-phases
      (add-after 'install 'create-link
      (lambda _
          (let* ((libpath (getenv "out"))
              (origin (format #f "~a/lib/libgssapi_krb5.so" libpath))
              (target (format #f "~a/lib/libgssapi.so" libpath)))
          (symlink origin target))
          #t))

  This works, but creates the link with full path target instead of relative like the rest of links
  created naturally by the original build process:

  ❯ ls -l /gnu/store/irhvqdpc4zvyj9in514lv859mjkyi7p3-my-mit-krb5-1.18/lib/libgssapi*
  lrwxrwxrwx 3 root root     21 Jan  1  1970 /gnu/store/irhvqdpc4zvyj9in514lv859mjkyi7p3-my-mit-krb5-1.18/lib/libgssapi_krb5.so -> libgssapi_krb5.so.2.2
  lrwxrwxrwx 3 root root     21 Jan  1  1970 /gnu/store/irhvqdpc4zvyj9in514lv859mjkyi7p3-my-mit-krb5-1.18/lib/libgssapi_krb5.so.2 -> libgssapi_krb5.so.2.2
  -r--r--r-- 2 root root 380520 Jan  1  1970 /gnu/store/irhvqdpc4zvyj9in514lv859mjkyi7p3-my-mit-krb5-1.18/lib/libgssapi_krb5.so.2.2
  lrwxrwxrwx 7 root root     82 Jan  1  1970 /gnu/store/irhvqdpc4zvyj9in514lv859mjkyi7p3-my-mit-krb5-1.18/lib/libgssapi.so -> /gnu/store/irhvqdpc4zvyj9in514lv859mjkyi7p3-my-mit-krb5-1.18/lib/libgssapi_krb5.so

  Should I try to `chdir` to the path before creating the link, or is there a cleaner
  way of doing something like this?

qutebrowser Kerberos support comes from `qtwebengine`. The only change needed would
be to add `mit-krb5` as input and add the "--webengine-kerberos=yes" qmake option in its
`configure` build phase.

My question here is about whether there is any policy requiring formal justification to
increase the number of dependencies of a certain package or this would be considered a valid
request/patch.


Best regards,

Ignacio