Modifying a .cpp file (with unused header) sometimes triggers a full project rebuild
I noticed an issue with build behavior in CLion.
When I modify a .cpp file whose header is not referenced by any other files, it occasionally triggers a full project rebuild. Most of the time, only the modified .cpp file is recompiled as expected.
This does not happen very often, so I’m not sure if it’s an issue in CLion or in CMake.
Environment:
CLion [your version, e.g. 2025.2.1]
Classic CLion (not Nova)
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Sounds like a quirk with CMake’s dependency tracking, maybe a timestamp glitch or a generated file update is forcing CLion to rebuild everything.
Lifordwill1122
Is there any way to find or track the root cause? Just a moment ago it rebuilt everything, even though I only changed a rarely referenced cpp file.
One observation: the full rebuild seems to happen after my Mac wakes from sleep