math/py-keras: Update 2.4.3 -> 2.9.0

PR:		266311

10 files changed, 733 insertions, 9 deletions

diff --git a/math/py-keras/files/bazelrc b/math/py-keras/files/bazelrc
new file mode 100644
index 000000000000..f1efb9602f3e
--- /dev/null
+++ b/math/py-keras/files/bazelrc
@@ -0,0 +1,18 @@
+startup --output_user_root="%%BAZEL_DIR%%/.cache/"
+
+# make bazel only fetch distfiles from the cache
+fetch --repository_cache="%%BAZEL_DIR%%/bazel-cache/" --distdir="%%BAZEL_DIST%%/bazel-dist/"
+build --repository_cache="%%BAZEL_DIR%%/bazel-cache/" --distdir="%%BAZEL_DIST%%/bazel-dist/"
+
+build --define=PREFIX=%%LOCALBASE%%
+build --define=LIBDIR=%%LOCALBASE%%/lib
+build --define=INCLUDEDIR=%%LOCALBASE%%/include
+build --define=PROTOBUF_INCLUDE_PATH=%%LOCALBASE%%/include
+
+build --extra_toolchains=//freebsd:cc-toolchain-freebsd
+
+# for python
+build --action_env=PATH=%%PATH%%
+build --host_action_env=PATH=%%PATH%%
+
+build --config=freebsd
diff --git a/math/py-keras/files/freebsd/BUILD b/math/py-keras/files/freebsd/BUILD
new file mode 100644
index 000000000000..4096b1c74d42
--- /dev/null
+++ b/math/py-keras/files/freebsd/BUILD
@@ -0,0 +1,88 @@
+# Copyright 2018 The Bazel Authors. All rights reserved.
+#
+# 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
+#
+#    http://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.
+# This becomes the BUILD file for @local_config_cc// under FreeBSD and OpenBSD.
+load(":cc_toolchain_config.bzl", "cc_toolchain_config")
+load("@rules_cc//cc:defs.bzl", "cc_library", "cc_toolchain", "cc_toolchain_suite")
+load("@bazel_tools//tools/python:toolchain.bzl", "py_runtime_pair")
+
+package(default_visibility = ["//visibility:public"])
+cc_library(
+    name = "malloc",
+)
+filegroup(
+    name = "empty",
+    srcs = [],
+)
+
+# Hardcoded toolchain, legacy behaviour.
+cc_toolchain_suite(
+    name = "freebsd_clang",
+    toolchains = {
+        "k8": ":cc-compiler-freebsd",
+	"freebsd": ":cc-compiler-freebsd",
+    },
+)
+
+cc_toolchain(
+    name = "cc-compiler-freebsd",
+    all_files = ":empty",
+    ar_files = ":empty",
+    as_files = ":empty",
+    compiler_files = ":empty",
+    dwp_files = ":empty",
+    linker_files = ":empty",
+    objcopy_files = ":empty",
+    strip_files = ":empty",
+    supports_param_files = 0,
+    toolchain_config = ":local_freebsd",
+    toolchain_identifier = "local_freebsd",
+)
+cc_toolchain_config(
+    name = "local_freebsd",
+    cpu = "k8",
+)
+
+toolchain(
+    name = "cc-toolchain-freebsd",
+    exec_compatible_with = [
+        "@platforms//cpu:x86_64",
+        "@platforms//os:freebsd",
+    ],
+    target_compatible_with = [
+        "@platforms//cpu:x86_64",
+        "@platforms//os:freebsd",
+    ],
+    toolchain = ":cc-compiler-freebsd",
+    toolchain_type = "@bazel_tools//tools/cpp:toolchain_type",
+)
+
+py_runtime(
+    name = "freebsd_python",
+    interpreter_path = "/usr/local/bin/python3.9",
+    python_version = "PY3",
+    visibility = ["//visibility:public"],
+)
+
+py_runtime_pair(
+    name = "bsd_py_runtime_pair",
+    py2_runtime = None,
+    py3_runtime = ":freebsd_python",
+)
+
+toolchain(
+    name = "freebsd_py_toolchain",
+    toolchain = ":bsd_py_runtime_pair",
+    toolchain_type = "@bazel_tools//tools/python:toolchain_type",
+)
+
diff --git a/math/py-keras/files/freebsd/cc_toolchain_config.bzl b/math/py-keras/files/freebsd/cc_toolchain_config.bzl
new file mode 100644
index 000000000000..51f2393e7bd2
--- /dev/null
+++ b/math/py-keras/files/freebsd/cc_toolchain_config.bzl
@@ -0,0 +1,287 @@
+# Copyright 2019 The Bazel Authors. All rights reserved.
+#
+# 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
+#
+#    http://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.
+"""A Starlark cc_toolchain configuration rule for FreeBSD and OpenBSD."""
+load(
+    "@bazel_tools//tools/cpp:cc_toolchain_config_lib.bzl",
+    "action_config",
+    "feature",
+    "flag_group",
+    "flag_set",
+    "tool",
+    "tool_path",
+    "with_feature_set",
+)
+
+load("@bazel_tools//tools/build_defs/cc:action_names.bzl", "ACTION_NAMES")
+all_compile_actions = [
+    ACTION_NAMES.c_compile,
+    ACTION_NAMES.cpp_compile,
+    ACTION_NAMES.linkstamp_compile,
+    ACTION_NAMES.assemble,
+    ACTION_NAMES.preprocess_assemble,
+    ACTION_NAMES.cpp_header_parsing,
+    ACTION_NAMES.cpp_module_compile,
+    ACTION_NAMES.cpp_module_codegen,
+    ACTION_NAMES.clif_match,
+    ACTION_NAMES.lto_backend,
+]
+all_cpp_compile_actions = [
+    ACTION_NAMES.cpp_compile,
+    ACTION_NAMES.linkstamp_compile,
+    ACTION_NAMES.cpp_header_parsing,
+    ACTION_NAMES.cpp_module_compile,
+    ACTION_NAMES.cpp_module_codegen,
+    ACTION_NAMES.clif_match,
+]
+all_link_actions = [
+    ACTION_NAMES.cpp_link_executable,
+    ACTION_NAMES.cpp_link_dynamic_library,
+    ACTION_NAMES.cpp_link_nodeps_dynamic_library,
+]
+def _impl(ctx):
+    cpu = ctx.attr.cpu
+    is_bsd = cpu == "k8" or cpu == "freebsd" or cpu == "openbsd"
+    compiler = "compiler"
+    toolchain_identifier = "local_freebsd"
+    host_system_name = "local" if is_bsd else "armeabi-v7a"
+    target_system_name = "local" if is_bsd else "armeabi-v7a"
+    target_libc = "local" if is_bsd else "armeabi-v7a"
+    abi_version = "local" if is_bsd else "armeabi-v7a"
+    abi_libc_version = "local" if is_bsd else "armeabi-v7a"
+    objcopy_embed_data_action = action_config(
+        action_name = "objcopy_embed_data",
+        enabled = True,
+        tools = [tool(path = "/usr/bin/objcopy")],
+    )
+    action_configs = [objcopy_embed_data_action] if is_bsd else []
+    default_link_flags_feature = feature(
+        name = "default_link_flags",
+        enabled = True,
+        flag_sets = [
+            flag_set(
+                actions = all_link_actions,
+                flag_groups = [
+                    flag_group(
+                        flags = [
+                            "-Wl,-undefined,dynamic_lookup",
+                            "-lc++",
+                            "-Wl,-z,relro,-z,now",
+                            "-no-canonical-prefixes",
+                            "-L%%LOCALBASE%%/lib",
+                        ],
+                    ),
+                ],
+            ),
+            flag_set(
+                actions = all_link_actions,
+                flag_groups = [flag_group(flags = ["-Wl,--gc-sections"])],
+                with_features = [with_feature_set(features = ["opt"])],
+            ),
+        ],
+    )
+    unfiltered_compile_flags_feature = feature(
+        name = "unfiltered_compile_flags",
+        enabled = True,
+        flag_sets = [
+            flag_set(
+                actions = all_compile_actions,
+                flag_groups = [
+                    flag_group(
+                        flags = [
+                            "-no-canonical-prefixes",
+                            "-Wno-builtin-macro-redefined",
+                            "-D__DATE__=\"redacted\"",
+                            "-D__TIMESTAMP__=\"redacted\"",
+                            "-D__TIME__=\"redacted\"",
+                        ],
+                    ),
+                ],
+            ),
+        ],
+    )
+    supports_pic_feature = feature(name = "supports_pic", enabled = True)
+    default_compile_flags_feature = feature(
+        name = "default_compile_flags",
+        enabled = True,
+        flag_sets = [
+            flag_set(
+                actions = all_compile_actions,
+                flag_groups = [
+                    flag_group(
+                        flags = [
+                            "-U_FORTIFY_SOURCE",
+                            "-D_FORTIFY_SOURCE=1",
+                            "-fstack-protector",
+                            "-Wall",
+                            "-fno-omit-frame-pointer",
+                        ],
+                    ),
+                ],
+            ),
+            flag_set(
+                actions = all_compile_actions,
+                flag_groups = [flag_group(flags = ["-g"])],
+                with_features = [with_feature_set(features = ["dbg"])],
+            ),
+            flag_set(
+                actions = all_compile_actions,
+                flag_groups = [
+                    flag_group(
+                        flags = [
+                            "-g0",
+                            "-O2",
+                            "-DNDEBUG",
+                            "-ffunction-sections",
+                            "-fdata-sections",
+                        ],
+                    ),
+                ],
+                with_features = [with_feature_set(features = ["opt"])],
+            ),
+            flag_set(
+                actions = all_cpp_compile_actions + [ACTION_NAMES.lto_backend],
+                flag_groups = [flag_group(flags = ["-std=c++17"])],
+            ),
+        ],
+    )
+    opt_feature = feature(name = "opt")
+    supports_dynamic_linker_feature = feature(name = "supports_dynamic_linker", enabled = True)
+    objcopy_embed_flags_feature = feature(
+        name = "objcopy_embed_flags",
+        enabled = True,
+        flag_sets = [
+            flag_set(
+                actions = ["objcopy_embed_data"],
+                flag_groups = [flag_group(flags = ["-I", "binary"])],
+            ),
+        ],
+    )
+    dbg_feature = feature(name = "dbg")
+    user_compile_flags_feature = feature(
+        name = "user_compile_flags",
+        enabled = True,
+        flag_sets = [
+            flag_set(
+                actions = all_compile_actions,
+                flag_groups = [
+                    flag_group(
+                        flags = ["%{user_compile_flags}"],
+                        iterate_over = "user_compile_flags",
+                        expand_if_available = "user_compile_flags",
+                    ),
+                ],
+            ),
+        ],
+    )
+    sysroot_feature = feature(
+        name = "sysroot",
+        enabled = True,
+        flag_sets = [
+            flag_set(
+                actions = [
+                    ACTION_NAMES.c_compile,
+                    ACTION_NAMES.cpp_compile,
+                    ACTION_NAMES.linkstamp_compile,
+                    ACTION_NAMES.preprocess_assemble,
+                    ACTION_NAMES.cpp_header_parsing,
+                    ACTION_NAMES.cpp_module_compile,
+                    ACTION_NAMES.cpp_module_codegen,
+                    ACTION_NAMES.clif_match,
+                    ACTION_NAMES.lto_backend,
+                ] + all_link_actions,
+                flag_groups = [
+                    flag_group(
+                        flags = ["--sysroot=%{sysroot}"],
+                        expand_if_available = "sysroot",
+                    ),
+                ],
+            ),
+        ],
+    )
+    if is_bsd:
+        features = [
+            default_compile_flags_feature,
+            default_link_flags_feature,
+            supports_dynamic_linker_feature,
+            supports_pic_feature,
+            objcopy_embed_flags_feature,
+            opt_feature,
+            dbg_feature,
+            user_compile_flags_feature,
+            sysroot_feature,
+            unfiltered_compile_flags_feature,
+        ]
+    else:
+        features = [supports_dynamic_linker_feature, supports_pic_feature]
+    if (is_bsd):
+        cxx_builtin_include_directories = ["/usr/lib/clang/13.0.0/include", "/usr/include/c++/v1", "/usr/local/include", "/usr/include"]
+    else:
+        cxx_builtin_include_directories = []
+    if is_bsd:
+        tool_paths = [
+            tool_path(name = "ar", path = "/usr/bin/ar"),
+            tool_path(name = "cpp", path = "/usr/bin/clang-cpp"),
+            tool_path(name = "dwp", path = "/usr/bin/dwp"),
+            tool_path(name = "gcc", path = "/usr/bin/clang"),
+            tool_path(name = "gcov", path = "/usr/bin/gcov"),
+            tool_path(name = "ld", path = "/usr/bin/ld"),
+            tool_path(name = "nm", path = "/usr/bin/nm"),
+            tool_path(name = "objcopy", path = "/usr/bin/objcopy"),
+            tool_path(name = "objdump", path = "/usr/bin/objdump"),
+            tool_path(name = "strip", path = "/usr/bin/strip"),
+        ]
+    else:
+        tool_paths = [
+            tool_path(name = "ar", path = "/bin/false"),
+            tool_path(name = "cpp", path = "/bin/false"),
+            tool_path(name = "dwp", path = "/bin/false"),
+            tool_path(name = "gcc", path = "/bin/false"),
+            tool_path(name = "gcov", path = "/bin/false"),
+            tool_path(name = "ld", path = "/bin/false"),
+            tool_path(name = "nm", path = "/bin/false"),
+            tool_path(name = "objcopy", path = "/bin/false"),
+            tool_path(name = "objdump", path = "/bin/false"),
+            tool_path(name = "strip", path = "/bin/false"),
+        ]
+    out = ctx.actions.declare_file(ctx.label.name)
+    ctx.actions.write(out, "Fake executable")
+    return [
+        cc_common.create_cc_toolchain_config_info(
+            ctx = ctx,
+            features = features,
+            action_configs = action_configs,
+            cxx_builtin_include_directories = cxx_builtin_include_directories,
+            toolchain_identifier = toolchain_identifier,
+            host_system_name = host_system_name,
+            target_system_name = target_system_name,
+            target_cpu = cpu,
+            target_libc = target_libc,
+            compiler = compiler,
+            abi_version = abi_version,
+            abi_libc_version = abi_libc_version,
+            tool_paths = tool_paths,
+        ),
+        DefaultInfo(
+            executable = out,
+        ),
+    ]
+
+cc_toolchain_config = rule(
+    implementation = _impl,
+    attrs = {
+        "cpu": attr.string(mandatory = True),
+    },
+    provides = [CcToolchainConfigInfo],
+    executable = True,
+)
diff --git a/math/py-keras/files/patch-.bazelrc b/math/py-keras/files/patch-.bazelrc
new file mode 100644
index 000000000000..31d69a3184cb
--- /dev/null
+++ b/math/py-keras/files/patch-.bazelrc
@@ -0,0 +1,13 @@
+--- .bazelrc.orig	2022-04-22 17:34:55 UTC
++++ .bazelrc
+@@ -106,7 +106,9 @@ build:macos --define=PREFIX=/usr
+ build:macos --define=LIBDIR=$(PREFIX)/lib
+ build:macos --define=INCLUDEDIR=$(PREFIX)/include
+ build:macos --define=PROTOBUF_INCLUDE_PATH=$(PREFIX)/include
+-# TF_SYSTEM_LIBS do not work on windows.
++
++build:freebsd --define force_libcpp=enabled
++build:freebsd --action_env=CXXFLAGS=-stdlib=libc++
+ 
+ # On windows, we still link everything into a single DLL.
+ build:windows --config=monolithic
diff --git a/math/py-keras/files/patch-WORKSPACE b/math/py-keras/files/patch-WORKSPACE
new file mode 100644
index 000000000000..c4ce74c61bd8
--- /dev/null
+++ b/math/py-keras/files/patch-WORKSPACE
@@ -0,0 +1,57 @@
+--- WORKSPACE.orig	2022-09-08 09:13:13 UTC
++++ WORKSPACE
+@@ -1,54 +1 @@
+ workspace(name = "org_keras")
+-
+-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
+-
+-# Needed by protobuf
+-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
+-http_archive(
+-    name = "bazel_skylib",
+-    url = "https://github.com/bazelbuild/bazel-skylib/releases/download/1.0.1/bazel-skylib-1.0.1.tar.gz",
+-    sha256 = "f1c8360c01fcf276778d3519394805dc2a71a64274a3a0908bc9edff7b5aebc8",
+-)
+-load("@bazel_skylib//:workspace.bzl", "bazel_skylib_workspace")
+-bazel_skylib_workspace()
+-
+-# Needed by protobuf
+-http_archive(
+-    name = "six_archive",
+-    build_file = "//third_party:six.BUILD",
+-    sha256 = "d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73",
+-    strip_prefix = "six-1.12.0",
+-    urls = [
+-        "http://mirror.bazel.build/pypi.python.org/packages/source/s/six/six-1.12.0.tar.gz",
+-        "https://pypi.python.org/packages/source/s/six/six-1.12.0.tar.gz",  # 2018-12-10
+-    ],
+-)
+-
+-bind(
+-    name = "six",
+-    actual = "@six_archive//:six",
+-)
+-
+-http_archive(
+-    name = "com_google_protobuf",
+-    sha256 = "1fbf1c2962af287607232b2eddeaec9b4f4a7a6f5934e1a9276e9af76952f7e0",
+-    strip_prefix = "protobuf-3.9.2",
+-    urls = ["https://github.com/protocolbuffers/protobuf/archive/v3.9.2.tar.gz"],
+-)
+-
+-# ZLIB
+-# Need by com_google_protobuf. Note that the original URL from zlib side is not
+-# available for now. We need to use bazel mirror as a backup.
+-http_archive(
+-    name = "zlib",
+-    build_file = "@com_google_protobuf//:third_party/zlib.BUILD",
+-    sha256 = "c3e5e9fdd5004dcb542feda5ee4f0ff0744628baf8ed2dd5d66f8ca1197cb1a1",
+-    strip_prefix = "zlib-1.2.11",
+-    urls = [
+-        "https://mirror.bazel.build/zlib.net/zlib-1.2.11.tar.gz",
+-        "https://zlib.net/zlib-1.2.11.tar.gz",
+-    ],
+-)
+-
+-load("@com_google_protobuf//:protobuf_deps.bzl", "protobuf_deps")
+-protobuf_deps()
diff --git a/math/py-keras/files/patch-keras_protobuf_BUILD b/math/py-keras/files/patch-keras_protobuf_BUILD
new file mode 100644
index 000000000000..e8ba4c72a808
--- /dev/null
+++ b/math/py-keras/files/patch-keras_protobuf_BUILD
@@ -0,0 +1,11 @@
+--- keras/protobuf/BUILD.orig	2022-09-08 09:14:15 UTC
++++ keras/protobuf/BUILD
+@@ -1,7 +1,7 @@
+ # Description:
+ #   Contains Keras protobufs
+ 
+-load("@com_google_protobuf//:protobuf.bzl", "py_proto_library")
++load("//third_party:protobuf.bzl", "py_proto_library")
+ 
+ package(
+     default_visibility = [
diff --git a/math/py-keras/files/patch-keras_protobuf_protobuf.bzl b/math/py-keras/files/patch-keras_protobuf_protobuf.bzl
new file mode 100644
index 000000000000..0ffcff335127
--- /dev/null
+++ b/math/py-keras/files/patch-keras_protobuf_protobuf.bzl
@@ -0,0 +1,220 @@
+--- /dev/null	2022-09-08 10:18:38.049755000 +0100
++++ third_party/protobuf.bzl	2022-09-08 10:17:38.840977000 +0100
+@@ -0,0 +1,217 @@
++def _GetPath(ctx, path):
++    if ctx.label.workspace_root:
++        return ctx.label.workspace_root + "/" + path
++    else:
++        return path
++
++def _IsNewExternal(ctx):
++    # Bazel 0.4.4 and older have genfiles paths that look like:
++    #   bazel-out/local-fastbuild/genfiles/external/repo/foo
++    # After the exec root rearrangement, they look like:
++    #   ../repo/bazel-out/local-fastbuild/genfiles/foo
++    return ctx.label.workspace_root.startswith("../")
++
++def _GenDir(ctx):
++    if _IsNewExternal(ctx):
++        # We are using the fact that Bazel 0.4.4+ provides repository-relative paths
++        # for ctx.genfiles_dir.
++        return ctx.genfiles_dir.path + (
++            "/" + ctx.attr.includes[0] if ctx.attr.includes and ctx.attr.includes[0] else ""
++        )
++
++    # This means that we're either in the old version OR the new version in the local repo.
++    # Either way, appending the source path to the genfiles dir works.
++    return ctx.var["GENDIR"] + "/" + _SourceDir(ctx)
++
++def _SourceDir(ctx):
++    if not ctx.attr.includes:
++        return ctx.label.workspace_root
++    if not ctx.attr.includes[0]:
++        return _GetPath(ctx, ctx.label.package)
++    if not ctx.label.package:
++        return _GetPath(ctx, ctx.attr.includes[0])
++    return _GetPath(ctx, ctx.label.package + "/" + ctx.attr.includes[0])
++
++def _PyOuts(srcs, use_grpc_plugin = False):
++    ret = [s[:-len(".proto")] + "_pb2.py" for s in srcs]
++    if use_grpc_plugin:
++        ret += [s[:-len(".proto")] + "_pb2_grpc.py" for s in srcs]
++    return ret
++
++def _proto_gen_impl(ctx):
++    """General implementation for generating protos"""
++    srcs = ctx.files.srcs
++    deps = []
++    deps += ctx.files.srcs
++    source_dir = _SourceDir(ctx)
++    gen_dir = _GenDir(ctx)
++    if source_dir:
++        import_flags = ["-I" + source_dir, "-I" + gen_dir]
++    else:
++        import_flags = ["-I."]
++
++    for dep in ctx.attr.deps:
++        import_flags += dep.proto.import_flags
++        deps += dep.proto.deps
++    import_flags = depset(import_flags).to_list()
++    deps = depset(deps).to_list()
++
++    args = []
++    if ctx.attr.gen_cc:
++        args += ["--cpp_out=" + gen_dir]
++    if ctx.attr.gen_py:
++        args += ["--python_out=" + gen_dir]
++
++    inputs = srcs + deps
++    tools = [ctx.executable.protoc]
++    if ctx.executable.plugin:
++        plugin = ctx.executable.plugin
++        lang = ctx.attr.plugin_language
++        if not lang and plugin.basename.startswith("protoc-gen-"):
++            lang = plugin.basename[len("protoc-gen-"):]
++        if not lang:
++            fail("cannot infer the target language of plugin", "plugin_language")
++
++        outdir = gen_dir
++        if ctx.attr.plugin_options:
++            outdir = ",".join(ctx.attr.plugin_options) + ":" + outdir
++        args += ["--plugin=protoc-gen-%s=%s" % (lang, plugin.path)]
++        args += ["--%s_out=%s" % (lang, outdir)]
++        tools.append(plugin)
++
++    if args:
++        ctx.actions.run(
++            inputs = inputs,
++            outputs = ctx.outputs.outs,
++            arguments = args + import_flags + [s.path for s in srcs],
++            executable = ctx.executable.protoc,
++            mnemonic = "ProtoCompile",
++            tools = tools,
++            use_default_shell_env = True,
++        )
++
++    return struct(
++        proto = struct(
++            srcs = srcs,
++            import_flags = import_flags,
++            deps = deps,
++        ),
++    )
++
++proto_gen = rule(
++    attrs = {
++        "srcs": attr.label_list(allow_files = True),
++        "deps": attr.label_list(providers = ["proto"]),
++        "includes": attr.string_list(),
++        "protoc": attr.label(
++            cfg = "host",
++            executable = True,
++            allow_single_file = True,
++            mandatory = True,
++        ),
++        "plugin": attr.label(
++            cfg = "host",
++            allow_files = True,
++            executable = True,
++        ),
++        "plugin_language": attr.string(),
++        "plugin_options": attr.string_list(),
++        "gen_cc": attr.bool(),
++        "gen_py": attr.bool(),
++        "outs": attr.output_list(),
++    },
++    output_to_genfiles = True,
++    implementation = _proto_gen_impl,
++)
++"""Generates codes from Protocol Buffers definitions.
++
++This rule helps you to implement Skylark macros specific to the target
++language. You should prefer more specific `cc_proto_library `,
++`py_proto_library` and others unless you are adding such wrapper macros.
++
++Args:
++  srcs: Protocol Buffers definition files (.proto) to run the protocol compiler
++    against.
++  deps: a list of dependency labels; must be other proto libraries.
++  includes: a list of include paths to .proto files.
++  protoc: the label of the protocol compiler to generate the sources.
++  plugin: the label of the protocol compiler plugin to be passed to the protocol
++    compiler.
++  plugin_language: the language of the generated sources
++  plugin_options: a list of options to be passed to the plugin
++  gen_cc: generates C++ sources in addition to the ones from the plugin.
++  gen_py: generates Python sources in addition to the ones from the plugin.
++  outs: a list of labels of the expected outputs from the protocol compiler.
++"""
++
++def py_proto_library(
++        name,
++        srcs = [],
++        deps = [],
++        py_libs = [],
++        py_extra_srcs = [],
++        include = None,
++        default_runtime = None,
++        protoc = "//third_party:protoc",
++        use_grpc_plugin = False,
++        **kwargs):
++    """Bazel rule to create a Python protobuf library from proto source files
++
++    NOTE: the rule is only an internal workaround to generate protos. The
++    interface may change and the rule may be removed when bazel has introduced
++    the native rule.
++
++    Args:
++      name: the name of the py_proto_library.
++      srcs: the .proto files of the py_proto_library.
++      deps: a list of dependency labels; must be py_proto_library.
++      py_libs: a list of other py_library targets depended by the generated
++          py_library.
++      py_extra_srcs: extra source files that will be added to the output
++          py_library. This attribute is used for internal bootstrapping.
++      include: a string indicating the include path of the .proto files.
++      default_runtime: the implicitly default runtime which will be depended on by
++          the generated py_library target.
++      protoc: the label of the protocol compiler to generate the sources.
++      use_grpc_plugin: a flag to indicate whether to call the Python C++ plugin
++          when processing the proto files.
++      **kwargs: other keyword arguments that are passed to py_library.
++
++    """
++    outs = _PyOuts(srcs, use_grpc_plugin)
++
++    includes = []
++    if include != None:
++        includes = [include]
++
++    grpc_python_plugin = None
++    if use_grpc_plugin:
++        grpc_python_plugin = "//external:grpc_python_plugin"
++        # Note: Generated grpc code depends on Python grpc module. This dependency
++        # is not explicitly listed in py_libs. Instead, host system is assumed to
++        # have grpc installed.
++
++    proto_gen(
++        name = name + "_genproto",
++        srcs = srcs,
++        deps = [s + "_genproto" for s in deps],
++        includes = includes,
++        protoc = protoc,
++        gen_py = 1,
++        outs = outs,
++        visibility = ["//visibility:public"],
++        plugin = grpc_python_plugin,
++        plugin_language = "grpc",
++    )
++
++    if default_runtime and not default_runtime in py_libs + deps:
++        py_libs = py_libs + [default_runtime]
++
++    native.py_library(
++        name = name,
++        srcs = outs + py_extra_srcs,
++        deps = py_libs + deps,
++        imports = includes,
++        **kwargs
++    )
++
diff --git a/math/py-keras/files/patch-keras_tools_pip__package_build__pip__package.sh b/math/py-keras/files/patch-keras_tools_pip__package_build__pip__package.sh
new file mode 100644
index 000000000000..cdce5d8b7fce
--- /dev/null
+++ b/math/py-keras/files/patch-keras_tools_pip__package_build__pip__package.sh
@@ -0,0 +1,20 @@
+--- keras/tools/pip_package/build_pip_package.sh.orig	2022-04-22 17:34:55 UTC
++++ keras/tools/pip_package/build_pip_package.sh
+@@ -39,7 +39,7 @@ function prepare_src() {
+ 
+   # Verifies all expected files are in pip.
+   # Creates init files in all directory in pip.
+-  python keras/tools/pip_package/create_pip_helper.py --pip-root "${TMPDIR}/keras/" --bazel-root "./keras"
++  %%PYTHON%% keras/tools/pip_package/create_pip_helper.py --pip-root "${TMPDIR}/keras/" --bazel-root "./keras"
+ }
+ 
+ function build_wheel() {
+@@ -54,7 +54,7 @@ function build_wheel() {
+ 
+   pushd ${TMPDIR} > /dev/null
+   echo $(date) : "=== Building wheel"
+-  "${PYTHON_BIN_PATH:-python}" setup.py bdist_wheel --universal --project_name $PROJECT_NAME
++  %%PYTHON%% setup.py bdist_wheel --universal --project_name $PROJECT_NAME
+   mkdir -p ${DEST}
+   cp dist/* ${DEST}
+   popd > /dev/null
diff --git a/math/py-keras/files/patch-third__party_BUILD b/math/py-keras/files/patch-third__party_BUILD
new file mode 100644
index 000000000000..0a12377854e7
--- /dev/null
+++ b/math/py-keras/files/patch-third__party_BUILD
@@ -0,0 +1,19 @@
+--- third_party/BUILD.orig	2022-09-08 09:14:55 UTC
++++ third_party/BUILD
+@@ -1,4 +1,5 @@
+ package(
++    default_visibility = ["//visibility:public"],
+     licenses = ["notice"],  # Apache 2.0
+ )
+ 
+@@ -7,4 +8,9 @@ exports_files([
+     "six.BUILD",
+ ])
+ 
+-package(default_visibility = ["//visibility:public"])
++genrule(
++    name = "protoc",
++    outs = ["protoc.bin"],
++    cmd = "ln -s $$(which protoc) $@",
++    executable = 1,
++)
diff --git a/math/py-keras/files/pkg-message.in b/math/py-keras/files/pkg-message.in
deleted file mode 100644
index cd438590cdea..000000000000
--- a/math/py-keras/files/pkg-message.in
+++ /dev/null
@@ -1,9 +0,0 @@
-[
-{ type: install
-  message: <<EOM
-There is no Tensorflow port currently in FreeBSD ports tree that is required
-by Keras by default. To make Keras work with Theano backend, one needs to modify
-theirs $HOME/.keras/keras.json file and set "backend" option to "theano".
-EOM
-}
-]