The official source reports this update: b10932: cmake: leave the timestamp out of precompiled headers on clang. cmake: leave the timestamp out of precompiled headers on clang ( #28816 ) Clang stores the modification time of the precompiled header sources inside the header and refuses the header when they differ. A cached header restored from another checkout carries the timestamps of that checkout, so the build fails. The option covers the compilers ccache treats as MSVC while they are clang underneath, clang-cl and the Intel LLVM drivers.
Canonical AI event
CMake update removes timestamps from Clang precompiled headers
CMake update addresses Clang precompiled header timestamp issues. The fix applies to clang-cl and Intel LLVM drivers.
13 Sept 20261 verified claims1 sources1 observations
This official update documents a development concerning b10932: cmake: leave the timestamp out of precompiled headers on clang. Its practical significance depends on the scope and evidence stated by the source.
Read the official source update and verify its stated scope, evidence and timing before acting on it.
Connected knowledge
Entities affected by this event
Continue this topic
Related verified updates
Evidence trail
Sources behind the event
Editorial presentation
Open story