Subject: What's our minimum ninja version?

From: Tom Lane <[email-masked]>
Date: Mon, 15 Apr 2024 20:26:49 -0400

installation.sgml says our minimum meson version is 0.54, but it's
silent on what the minimum ninja version is.  What RHEL8 supplies
doesn't work for me:

$ meson setup build
...
Found ninja-1.8.2 at /usr/bin/ninja
ninja: error: build.ninja:7140: multiple outputs aren't (yet?) supported by depslog; bring this up on the mailing list if it affects you

WARNING: Could not create compilation database.

That's not a huge problem in itself, but I think we should figure
out what's the minimum version that works, and document that.

			regards, tom lane