diff --git a/u01/CMakeLists.txt b/u01/CMakeLists.txt
index ce35d11..95192e0 100644
--- a/u01/CMakeLists.txt
+++ b/u01/CMakeLists.txt
@@ -7,6 +7,11 @@ set(CMAKE_CXX_STANDARD 17)
 # On GNU this has the effect of passing -std=c++11 instead of -std=gnu++11
 set(CMAKE_CXX_EXTENSIONS no)
 
+# Enable all compiler warnings (and make them errors) on GNU/Clang platforms
+if(CMAKE_CXX_COMPILER_ID MATCHES "^(GNU|Clang)$")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wpedantic -Werror")
+endif()
+
 add_library(tree node.cpp)
 add_executable(main main.cpp)
 target_link_libraries(main tree)