Ray molenkamp
c7b00ef625
CMake caches the location of the CRT runtime in the MSVC_REDIST_DIR variable, and uses it to copy the required dll's during the install phase. This variable is only initialized when it does not exist. Leading to issues when compiler updates are installed and the compiler version slightly changes, cmake still looks in the old location for the runtime and warns about the files not existing. This change fixes the issue by checking if the redist dir exists and if not unsets it so InstallRequiredSystemLibraries can have another go at figuring out where they live.