in 415c83fa, we introduced a regression which broke the build of
target of "package". because
- the IMPORT_LOCATION_<CONFIG> of the imported target of
"Seastar::iotune" includes a literal `$<CONFIG>`
- we retrieve the property named "IMPORTED_LOCATION" from
this target. but value of this property is empty.
so, when we copied this file, the "src" parameter passed to
`cmake -E copy` is actually an empty string.
in this change, we
- set the `IMPORTED_LOCATION_${CONFIG}` property with a
correct path.
- retrieve the property with the right approach -- to use
`TARGET_FILE` generator expression.
Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>
Closesscylladb/scylladb#21181
8355056453