Fix build break in cmake 3.22.0-rc2 (#837)
Fix build break in cmake 3.22.0-rc2 (#837)

 cmake 3.22.0-rc2 - Adding quotes to LIB_SEARCH_PATH to ensure there is always a string to compare to.

Co-authored-by: David Watson <de2aa9f8299202aaa32c007e14b383069c83003e@hotmail.co.uk>
aws/aws-sdk-cpp,cedral/aws-sdk-cpp,cedral/aws-sdk-cpp,aws/aws-sdk-cpp,aws/aws-sdk-cpp,cedral/aws-sdk-cpp,cedral/aws-sdk-cpp,cedral/aws-sdk-cpp,aws/aws-sdk-cpp,aws/aws-sdk-cpp,cedral/aws-sdk-cpp,aws/aws-sdk-cpp