diff --git a/mlir/examples/transform/Ch2/lib/CMakeLists.txt b/mlir/examples/transform/Ch2/lib/CMakeLists.txt
--- a/mlir/examples/transform/Ch2/lib/CMakeLists.txt
+++ b/mlir/examples/transform/Ch2/lib/CMakeLists.txt
@@ -5,6 +5,10 @@
   # Built from the following source files.
   MyExtension.cpp
 
+  # Do not make this part of the main library distribution.
+  # Needed for the example only.
+  EXCLUDE_FROM_LIBMLIR
+
   # Make includes visible without top-level path.
   ADDITIONAL_HEADER_DIRS
   ${PROJECT_SOURCE_DIR}/examples/transform/Ch2/include
diff --git a/mlir/examples/transform/Ch3/lib/CMakeLists.txt b/mlir/examples/transform/Ch3/lib/CMakeLists.txt
--- a/mlir/examples/transform/Ch3/lib/CMakeLists.txt
+++ b/mlir/examples/transform/Ch3/lib/CMakeLists.txt
@@ -5,6 +5,10 @@
   # Built from the following source files.
   MyExtension.cpp
 
+  # Do not make this part of the main library distribution.
+  # Needed for the example only.
+  EXCLUDE_FROM_LIBMLIR
+
   # Make includes visible without top-level path.
   ADDITIONAL_HEADER_DIRS
   ${PROJECT_SOURCE_DIR}/examples/transform/Ch3/include