diff --git a/CMakeLists.txt b/CMakeLists.txt
index f3e69b8..f32ffee 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -59,6 +59,7 @@ include(CheckCXXCompilerFlag)
 include(GNUInstallDirs)
 include(CMakeDependentOption)
 
+if(0)
 set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
 
 
@@ -419,6 +420,7 @@ endif()
 set(EIGEN_CUDA_COMPUTE_ARCH 30 CACHE STRING "The CUDA compute architecture level to target when compiling CUDA code")
 
 include_directories(${CMAKE_CURRENT_SOURCE_DIR})
+endif()
 
 # Backward compatibility support for EIGEN_INCLUDE_INSTALL_DIR
 if(EIGEN_INCLUDE_INSTALL_DIR)
@@ -495,6 +497,7 @@ if(BUILD_TESTING)
   add_subdirectory(failtest)
 endif()
 
+if(0)
 if(EIGEN_LEAVE_TEST_IN_ALL_TARGET)
   add_subdirectory(blas)
   add_subdirectory(lapack)
@@ -532,9 +535,11 @@ if(EIGEN_TEST_SYCL)
     add_definitions(-DEIGEN_DONT_VECTORIZE_SYCL=1)
   endif()
 endif()
+endif()
 
 add_subdirectory(unsupported)
 
+if(0)
 add_subdirectory(demos EXCLUDE_FROM_ALL)
 
 # must be after test and unsupported, for configuring buildtests.in
@@ -554,6 +559,7 @@ configure_file(scripts/cdashtesting.cmake.in cdashtesting.cmake @ONLY)
 if(BUILD_TESTING)
   ei_testing_print_summary()
 endif()
+endif()
 
 message(STATUS "")
 message(STATUS "Configured Eigen ${EIGEN_VERSION_NUMBER}")