abnobdoss opened a new pull request, #855:
URL: https://github.com/apache/iceberg-cpp/pull/855

   ## What
   `REQUIRED_VARS` dereferences its entries as variable names, so passing the 
target `thrift::thrift` resolves to nothing and the module reports Thrift as 
missing. Instead we need to pass a variable holding the target.
   
   ## Why
   The current behavior breaks `-DICEBERG_BUNDLE_THRIFT=OFF` against any Thrift 
shipping a CMake config, which is 0.13 and later. `resolve_thrift_dependency()` 
calls `find_package(ThriftAlt MODULE REQUIRED)`, so the false negative aborts 
configure, and it is the path `iceberg_hive` recommends when the target is 
missing. It has gone unnoticed because Arrow's bundled Thrift defines the 
target first and the module returns early.
   
   ## Validation
   - Against a config-mode Thrift install, before: `Could NOT find ThriftAlt 
(missing: thrift::thrift)` and configure aborts. After: `Found ThriftAlt: 
thrift::thrift` and configure completes.


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