# Copyright 2024 The JAX Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

cmake_minimum_required(VERSION 3.18...3.27)
project(rms_norm LANGUAGES CXX)

find_package(Python 3.8 COMPONENTS Interpreter Development.Module REQUIRED)
execute_process(
  COMMAND "${Python_EXECUTABLE}"
          "-c" "from jax import ffi; print(ffi.include_dir())"
  OUTPUT_STRIP_TRAILING_WHITESPACE OUTPUT_VARIABLE XLA_DIR)
message(STATUS "XLA include directory: ${XLA_DIR}")

add_library(rms_norm SHARED "rms_norm.cc")
target_include_directories(rms_norm PUBLIC ${XLA_DIR})
target_compile_features(rms_norm PUBLIC cxx_std_17)
install(TARGETS rms_norm LIBRARY DESTINATION ${CMAKE_CURRENT_LIST_DIR})