build: introduce `ENABLE_DATE_INSTALL` to allow user opt-out of install

HowardHinnant / date

A date and time library based on the C++11/14/17 <chrono> header

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build: introduce `ENABLE_DATE_INSTALL` to allow user opt-out of install #752

Open OlivierLDff opened 1 year ago

OlivierLDff commented 1 year ago

When using date as a PRIVATE dependency, it is not required to install it. This flag give user using date with add_subdirectory the opportunity to disable install target Default behavior is conserved since ENABLE_DATE_INSTALL is ON

fix #751