diff --git a/Utilities/cmcurl/CMakeLists.txt b/Utilities/cmcurl/CMakeLists.txt
index b34a493fcf..2d6def47e5 100644
--- a/Utilities/cmcurl/CMakeLists.txt
+++ b/Utilities/cmcurl/CMakeLists.txt
@@ -1263,6 +1263,7 @@ function(TRANSFORM_MAKEFILE_INC INPUT_FILE OUTPUT_FILE)
 
 endfunction()
 
+if(0) # This code not needed for building within CMake.
 include(GNUInstallDirs)
 
 set(CURL_INSTALL_CMAKE_DIR ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME})
@@ -1270,6 +1271,7 @@ set(TARGETS_EXPORT_NAME "${PROJECT_NAME}Targets")
 set(generated_dir "${CMAKE_CURRENT_BINARY_DIR}/generated")
 set(project_config "${generated_dir}/${PROJECT_NAME}Config.cmake")
 set(version_config "${generated_dir}/${PROJECT_NAME}ConfigVersion.cmake")
+endif()
 
 if(USE_MANUAL)
   add_subdirectory(docs)