onnx.patch

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 044996e..ded7e39 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -53,6 +53,7 @@ option(ONNX_USE_LITE_PROTO "Use lite protobuf instead of full." OFF)
 option(ONNX_DISABLE_EXCEPTIONS "Disable exception handling." OFF)
 option(ONNX_DISABLE_STATIC_REGISTRATION "Disable static registration for ONNX operator schemas." OFF)
 option(ONNX_USE_UNITY_BUILD "Enable Unity (Jumbo) build for" OFF)
+option(ONNX_MINIMAL_BUILD "Build only essential ONNX components" OFF)
 option(ONNX_INSTALL "Install ONNX targets, headers, and CMake config files" ON)
 if(WIN32)
   option(ONNX_USE_MSVC_STATIC_RUNTIME "Build with MSVC static runtime" OFF)
@@ -399,14 +400,28 @@ relative_protobuf_generate_cpp(ONNX_PROTO_SRCS
                                onnx/onnx-operators.in.proto
                                onnx/onnx-data.in.proto)
 
-file(GLOB_RECURSE __tmp_srcs "${ONNX_ROOT}/onnx/*.h" "${ONNX_ROOT}/onnx/*.cc")
-file(GLOB_RECURSE onnx_gtests_src "${ONNX_ROOT}/onnx/test/cpp/*.h"
-    "${ONNX_ROOT}/onnx/test/cpp/*.cc"
-    "${ONNX_ROOT}/onnx/backend/test/cpp/*.cc"
-    "${ONNX_ROOT}/onnx/backend/test/cpp/*.h")
-list(REMOVE_ITEM __tmp_srcs "${ONNX_ROOT}/onnx/cpp2py_export.cc")
-list(REMOVE_ITEM __tmp_srcs ${onnx_gtests_src} "${ONNX_ROOT}/onnx/test/cmake/main.cc")
-list(APPEND ONNX_SRCS ${__tmp_srcs})
+if(ONNX_MINIMAL_BUILD)
+    message(STATUS "Configuring ONNX minimal build")
+    set(ONNX_SRCS
+      "${ONNX_ROOT}/onnx/common/common.h"
+      "${ONNX_ROOT}/onnx/defs/data_type_utils.h"
+      "${ONNX_ROOT}/onnx/defs/data_type_utils.cc"
+    )
+    # Ensure ONNX_ML is treated as ON for minimal build consistency with ORT's file
+    set(ONNX_ML ON CACHE BOOL "Enable traditional ML API." FORCE)
+    # Minimal build doesn't need Python or tests
+    set(ONNX_BUILD_PYTHON OFF CACHE BOOL "Build Python binaries" FORCE)
+    set(ONNX_BUILD_TESTS OFF CACHE BOOL "Build ONNX C++ APIs Tests" FORCE)
+else()
+    file(GLOB_RECURSE __tmp_srcs "${ONNX_ROOT}/onnx/*.h" "${ONNX_ROOT}/onnx/*.cc")
+    file(GLOB_RECURSE onnx_gtests_src "${ONNX_ROOT}/onnx/test/cpp/*.h"
+        "${ONNX_ROOT}/onnx/test/cpp/*.cc"
+        "${ONNX_ROOT}/onnx/backend/test/cpp/*.cc"
+        "${ONNX_ROOT}/onnx/backend/test/cpp/*.h")
+    list(REMOVE_ITEM __tmp_srcs "${ONNX_ROOT}/onnx/cpp2py_export.cc")
+    list(REMOVE_ITEM __tmp_srcs ${onnx_gtests_src} "${ONNX_ROOT}/onnx/test/cmake/main.cc")
+    list(APPEND ONNX_SRCS ${__tmp_srcs})
+endif()
 
 set(LINKED_PROTOBUF_TARGET protobuf::libprotobuf)
 if(ONNX_USE_LITE_PROTO)
diff --git a/cmake/Utils.cmake b/cmake/Utils.cmake
index 1987edd..04b3088 100644
--- a/cmake/Utils.cmake
+++ b/cmake/Utils.cmake
@@ -103,18 +103,7 @@ endfunction()
 
 function(add_onnx_compile_options target)
   if(MSVC)
-    # For disabling Protobuf related warnings
-    set(protobuf_warnings
-        /wd4146 # unary minus operator applied to unsigned type, result still
-                # unsigned
-        /wd4244 # 'argument': conversion from 'google::protobuf::uint64' to
-                # 'int', possible loss of data
-        /wd4267 # Conversion from 'size_t' to 'int', possible loss of data
-        /wd4141 # 'inline': used more than once
-        /wd4047 # '=': 'uintptr_t' differs in levels of indirection from 'void *'
-    )
     add_msvc_runtime_flag(${target})
-    target_compile_options(${target} PUBLIC ${protobuf_warnings})
     if(ONNX_WERROR)
       target_compile_options(${target} PRIVATE "/WX")
     endif()
diff --git a/onnx/defs/nn/old.cc b/onnx/defs/nn/old.cc
index a6a8a83..153da87 100644
--- a/onnx/defs/nn/old.cc
+++ b/onnx/defs/nn/old.cc
@@ -4026,7 +4026,6 @@ ONNX_OPERATOR_SET_SCHEMA(
     GroupNormalization,
     18,
     OpSchema()
-        .Deprecate()
         .SetDoc(GroupNormalization_ver18_doc)
         .Attr("epsilon", "The epsilon value to use to avoid division by zero.", AttributeProto::FLOAT, 1e-5f)
         .Attr(