Trouble installing source-built package in dom0

[Aaron Janse]

Hi qubes-users,

I'm trying to install the 3rd-party package qubes-desktop-linux-i3-gaps-next, a fork of the official qubes-desktop-linux-i3 that replaces the patched i3 with a patched i3-gaps (which is a fork of i3). I can't find contact into for the package author, and my problem doesn't seem too specific to the package, so I'm asking here for help.

Following the README's instructions, I built the RPMs on a fedora-30 Qube (then I tried fedora-25), but I couldn't install them on dom0:

$ sudo dnf install i3-gaps_next-7.fc30.x86_64.rpm

Error: nothing provides libc.so.6(GLIBC_2.27)(64bit) needed by i3-1000:gaps_next-7.fc30.x86_64

(try to add '--allowerasing' to command line to replace conflicting packages)

As far as I can tell, it looks like the problem is building with the wrong version of glibc. Before I begin working on some hacky dev environment with the same version of glibc as dom0, are there any recommendations for what I should do?

How/where is software typically built for dom0?

Thanks!