Set core lib dependencies as PRIVATE???

Author: NicolasHug

src/torchcodec/_core/CMakeLists.txt

@@ -71,11 +71,21 @@ function(make_torchcodec_sublibrary
         )
     endif()
 
-    target_link_libraries(
-        ${library_name}
-        PUBLIC
-        ${library_dependencies}
-    )
+    # For the core library, use PRIVATE to prevent FFmpeg dependencies from leaking
+    # For other libraries, use PUBLIC so they can properly link to their dependencies
+    if(${library_name} MATCHES ".*_core[0-9]+$")
+        target_link_libraries(
+            ${library_name}
+            PRIVATE
+            ${library_dependencies}
+        )
+    else()
+        target_link_libraries(
+            ${library_name}
+            PUBLIC
+            ${library_dependencies}
+        )
+    endif()
 
 endfunction()