Initial commit

Co-authored-by: Zhuohan Li <zhuohan@openai.com>
Co-authored-by: Maratyszcza <marat@openai.com>
Co-authored-by: Volodymyr Kyrylov <vol@wilab.org.ua>

CMakeLists.txt

@@ -0,0 +1,23 @@
+cmake_minimum_required(VERSION 3.26)
+project(gpt_oss LANGUAGES C CXX)
+
+# If not defined externally, auto-detect
+if(NOT DEFINED GPTOSS_BUILD_METAL)
+  if(APPLE AND CMAKE_SYSTEM_PROCESSOR MATCHES "arm64")
+    message(STATUS "Apple Silicon detected → enabling GPTOSS_BUILD_METAL")
+    set(GPTOSS_BUILD_METAL ON)
+  else()
+    message(STATUS "Non-Apple Silicon → disabling GPTOSS_BUILD_METAL")
+    set(GPTOSS_BUILD_METAL OFF)
+  endif()
+else()
+  message(STATUS "GPTOSS_BUILD_METAL manually set to: ${GPTOSS_BUILD_METAL}")
+endif()
+
+# Now declare it as a cache variable (respects user-provided value)
+set(GPTOSS_BUILD_METAL "${GPTOSS_BUILD_METAL}" CACHE BOOL "Enable Metal backend")
+
+if(GPTOSS_BUILD_METAL)
+  enable_language(OBJC)
+  add_subdirectory(gpt_oss/metal)
+endif()