As CMake's generated targets file does, reset _IMPORT_PREFIX to an empty string when it resolves to "/". Reported by @heitbaum in #5587. Signed-off-by: Niels Lohmann <mail@nlohmann.me>
As CMake's generated targets file does, reset _IMPORT_PREFIX to an empty string when it resolves to "/". Reported by @heitbaum in #5587. Signed-off-by: Niels Lohmann <mail@nlohmann.me>