diff --git a/CMakeLists.txt b/CMakeLists.txt
index b727b06..48d01de 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -144,6 +144,10 @@
 option(BUILD_EXAMPLES "Build examples" ON)
 option(BUILD_BENCHMARKS "Build Ceres benchmarking suite" ON)
 option(BUILD_SHARED_LIBS "Build Ceres as a shared library." OFF)
+option(CODE_GENERATION "Build the code generation module." OFF)
+if(CODE_GENERATION)
+    message(WARNING "The code generation module is still under development. The functionality and API of the current implementation might change in the future.")
+endif(CODE_GENERATION)
 set(SANITIZERS "" CACHE STRING "Semicolon-separated list of sanitizers to use (e.g address, memory, thread)")
 include(EnableSanitizer)
 enable_sanitizer(${SANITIZERS})
diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index a6d2ff6..e2f4df4 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -72,8 +72,10 @@
 add_executable(simple_bundle_adjuster simple_bundle_adjuster.cc)
 target_link_libraries(simple_bundle_adjuster ceres)
 
-add_executable(autodiff_codegen autodiff_codegen.cc)
-target_link_libraries(autodiff_codegen ceres)
+if(CODE_GENERATION)
+  add_executable(autodiff_codegen autodiff_codegen.cc)
+  target_link_libraries(autodiff_codegen ceres)
+endif(CODE_GENERATION)
 
 if (GFLAGS)
   add_executable(powell powell.cc)
diff --git a/internal/ceres/CMakeLists.txt b/internal/ceres/CMakeLists.txt
index 948c4b7..0733f47 100644
--- a/internal/ceres/CMakeLists.txt
+++ b/internal/ceres/CMakeLists.txt
@@ -60,7 +60,6 @@
     canonical_views_clustering.cc
     cgnr_solver.cc
     callbacks.cc
-    code_generator.cc
     compressed_col_sparse_matrix_utils.cc
     compressed_row_jacobian_writer.cc
     compressed_row_sparse_matrix.cc
@@ -83,9 +82,6 @@
     dynamic_sparse_normal_cholesky_solver.cc
     evaluator.cc
     eigensparse.cc
-    expression.cc
-    expression_graph.cc
-    expression_ref.cc
     file.cc
     float_suitesparse.cc
     float_cxsparse.cc
@@ -152,6 +148,16 @@
     wall_time.cc
 )
 
+if(CODE_GENERATION)
+  set(CERES_CODEGEN_SRC
+      code_generator.cc
+      expression.cc
+      expression_graph.cc
+      expression_ref.cc
+  )
+  list(APPEND CERES_INTERNAL_SRC ${CERES_CODEGEN_SRC})
+endif(CODE_GENERATION)
+
 # Also depend on the header files so that they appear in IDEs.
 file(GLOB CERES_INTERNAL_HDRS *.h)
 if (MINIGLOG)
@@ -497,6 +503,7 @@
 
   add_subdirectory(generated_bundle_adjustment_tests)
 
+  if(CODE_GENERATION)
   # Testing the AutoDiffCodegen system is more complicated, because function- and
   # constructor calls have side-effects. In C++ the evaluation order and
   # the elision of copies is implementation defined. Between different compilers,
@@ -524,6 +531,7 @@
       ceres_test(expression_graph)
       set(CMAKE_CXX_FLAGS ${CXX_FLAGS_OLD})
   endif()
+  endif()
 
 endif (BUILD_TESTING AND GFLAGS)