fix windows build

Author: wgtmac

src/iceberg/avro/avro_schema_util_internal.h

@@ -23,6 +23,7 @@
 
 #include <avro/Node.hh>
 
+#include "iceberg/iceberg_bundle_export.h"
 #include "iceberg/result.h"
 #include "iceberg/schema_util.h"
 #include "iceberg/type.h"
@@ -35,7 +36,7 @@ class ValidSchema;
 namespace iceberg::avro {
 
 /// \brief A visitor that converts an Iceberg type to an Avro node.
-class ToAvroNodeVisitor {
+class ICEBERG_BUNDLE_EXPORT ToAvroNodeVisitor {
  public:
   Status Visit(const BooleanType& type, ::avro::NodePtr* node);
   Status Visit(const IntType& type, ::avro::NodePtr* node);
@@ -62,7 +63,7 @@ class ToAvroNodeVisitor {
 };
 
 /// \brief A visitor that checks the presence of field IDs in an Avro schema.
-class HasIdVisitor {
+class ICEBERG_BUNDLE_EXPORT HasIdVisitor {
  public:
   HasIdVisitor() = default;
 
@@ -132,7 +133,8 @@ class HasIdVisitor {
 /// \param avro_node The Avro node to read data from.
 /// \param prune_source Whether the source schema can be pruned.
 /// \return The schema projection result.
-Result<SchemaProjection> Project(const Schema& expected_schema,
-                                 const ::avro::NodePtr& avro_node, bool prune_source);
+ICEBERG_BUNDLE_EXPORT Result<SchemaProjection> Project(const Schema& expected_schema,
+                                                       const ::avro::NodePtr& avro_node,
+                                                       bool prune_source);
 
 }  // namespace iceberg::avro