AUTOMOC_SOURCE_GROUP
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Cmake/docs/3.21/prop gbl/automoc source group
AUTOMOC_SOURCE_GROUP
New in version 3.9.
Name of the source_group() for AUTOMOC generated files.
When set this is used instead of AUTOGEN_SOURCE_GROUP for files generated by AUTOMOC.
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https://cmake.org/cmake/help/v3.21/prop_gbl/AUTOMOC_SOURCE_GROUP.html