# PCH_INSTANTIATE_TEMPLATES

Added in version 3.19.

When this property is set to true, the precompiled header compiler options will contain a flag to instantiate templates during the generation of the PCH if supported. This can significantly improve compile times. Supported in Clang since version 11.

This property is initialized by the value of the `CMAKE_PCH_INSTANTIATE_TEMPLATES` variable if it is set when a target is created. If that variable is not set, the property defaults to `ON`.