Tests/RunCMake/InstallPackageInfo/ExperimentalGate.cmake - third_party/github.com/Kitware/CMake - Git at Google

 unset(CMAKE_EXPERIMENTAL_EXPORT_PACKAGE_INFO)

 add_library(foo INTERFACE)
 install(TARGETS foo EXPORT foo DESTINATION .)
 install(PACKAGE_INFO foo DESTINATION cps EXPORT foo)
	unset(CMAKE_EXPERIMENTAL_EXPORT_PACKAGE_INFO)

	add_library(foo INTERFACE)
	install(TARGETS foo EXPORT foo DESTINATION .)
	install(PACKAGE_INFO foo DESTINATION cps EXPORT foo)