Rebuild sysent when capabilities.conf is updated.

[kevans]

Huh, I thought we already did this. Did I inadvertently drop it when I consolidated?

[markj]

In D25571#565539, @kevans wrote:

Huh, I thought we already did this. Did I inadvertently drop it when I consolidated?

No idea. I just noticed the problem when updating capabilities.conf, I can't remember if this worked in the past.

[brooks]

sys/conf/sysent.mk

28 ↗

(On Diff #74118)

This will work, but does cause some harmless rebuilds (e.g. things like linux combat that don't use capabilities.conf). I wonder if this should be added in the individual Makefiles.

[markj]

sys/conf/sysent.mk

28 ↗

(On Diff #74118)

I thought about it and went with this approach since:

• the likelihood of a spurious rebuild is low, and it's harmless anyway
• the makefile would be duplicating metadata from syscalls.conf

I'm happy to change it if you prefer, though.

[brooks]

sys/conf/sysent.mk

28 ↗

(On Diff #74118)

It might be worth commenting that it's a known (unimportant) issue.

[markj]

Add a comment about spurious rebuilds.