Put back normal compilation flags

Author: NicolasHug

src/torchcodec/decoders/_core/CMakeLists.txt

@@ -4,9 +4,7 @@ set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 find_package(Torch REQUIRED)
-# TODO Put back normal flags
-# set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -pedantic -Werror ${TORCH_CXX_FLAGS}")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall ${TORCH_CXX_FLAGS}")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -pedantic -Werror ${TORCH_CXX_FLAGS}")
 find_package(Python3 ${PYTHON_VERSION} EXACT COMPONENTS Development)
 
 function(make_torchcodec_library library_name ffmpeg_target)