This is what happens when I file bug reports while sick. Forgot a bunch of details. My apologies.

Yeah, bug reported from emacs 30.0.50 @ 4e260bfc47e on master. Can confirm that it's now fix on latest master. 

Thanks!

On Thu, Jan 25, 2024 at 5:18 PM Jim Porter <jporterbugs@gmail.com> wrote:
On 1/25/2024 4:54 PM, Patrick Poitras wrote:
> In eshell, if I am in a directory and call `make`, the call that is
> executed is (eshell/make) from em-unix.el.
>
> The *compilation* window then pops up, which reads: ...

Thanks for the bug report. I'm guessing you're using Emacs 30.0.50. This
is a bug, in that eshell/make should print its output to the Eshell
buffer by default (not a new compilation buffer). That's now fixed in
4834be0949e on master, so closing this issue.

However, for fixing the colors in the compilation buffer, you can also
add 'ansi-color-compilation-filter' to 'compilation-filter-hook'.