Currently, each change to NEWS triggers a meson reconfigure that changes SOURCE_EPOCH which causes a full rebuild. Since NEWS changes relatively often, we have a full rebuild each time we pull from master even if we pull semi-regularly. This is further compounded when using branches since NEWS has a relatively high chance to differ between branches which causes git to update the modification time, leading to a full rebuild when switching between branches. We fix this by using the creation time of the latest git tag instead.
System and Service Manager
Details
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Assorted, older, general information about systemd can be found in the systemd Wiki.
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Please see the Hacking guide for information on how to hack on systemd and test your modifications.
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Stable branches with backported patches are available in the stable repo.
