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

 project(EmptyConfig CXX)

 set(CMAKE_BUILD_TYPE "" CACHE STRING "" FORCE)
 set(CMAKE_CONFIGURATION_TYPES "" CACHE STRING "" FORCE)

 add_library(foo foo.cxx)

 install(TARGETS foo EXPORT foo)
 install(PACKAGE_INFO foo DESTINATION cps EXPORT foo)
	project(EmptyConfig CXX)

	set(CMAKE_BUILD_TYPE "" CACHE STRING "" FORCE)
	set(CMAKE_CONFIGURATION_TYPES "" CACHE STRING "" FORCE)

	add_library(foo foo.cxx)

	install(TARGETS foo EXPORT foo)
	install(PACKAGE_INFO foo DESTINATION cps EXPORT foo)