Fix make.sh install unwanted config files

CMakeLists.txt

@@ -223,7 +223,8 @@
     "${CMAKE_CURRENT_SOURCE_DIR}/library_config/cJSONConfigVersion.cmake.in"
     ${PROJECT_BINARY_DIR}/cJSONConfigVersion.cmake @ONLY)
 
+if(ENABLE_TARGET_EXPORT)
     # Install package config files
     install(FILES ${PROJECT_BINARY_DIR}/cJSONConfig.cmake
         ${PROJECT_BINARY_DIR}/cJSONConfigVersion.cmake
         DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}/cmake/cJSON")
@@ -226,7 +227,8 @@
     # Install package config files
     install(FILES ${PROJECT_BINARY_DIR}/cJSONConfig.cmake
         ${PROJECT_BINARY_DIR}/cJSONConfigVersion.cmake
         DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}/cmake/cJSON")
+endif()
 
 option(ENABLE_CJSON_TEST "Enable building cJSON test" ON)
 if(ENABLE_CJSON_TEST)