Merge pull request #12109 from deannagarcia/cherrypickOSX

Cherrypick osx static linking fix

Author: deannagarcia

BUILD.bazel

@@ -179,7 +179,7 @@ cc_binary(
     linkopts = LINK_OPTS,
     features = select({
       # This isn't possible on mac because there is no static library for lcrt0.o
-      "@platforms//os:osx": [],
+      "//build_defs:config_osx": [],
       # When cross-compiling we need to statically link all C++ libraries.
       "//conditions:default": ["fully_static_link"],
     }),

build_defs/BUILD.bazel

@@ -1,5 +1,6 @@
 # Internal Starlark definitions for Protobuf.
 
+load("@bazel_skylib//lib:selects.bzl", "selects")
 load("@rules_cc//cc:defs.bzl", starlark_cc_proto_library = "cc_proto_library")
 load("@rules_pkg//:mappings.bzl", "pkg_files", "strip_prefix")
 load(":cc_proto_blacklist_test.bzl", "cc_proto_blacklist_test")
@@ -83,6 +84,25 @@ config_setting(
     },
 )
 
+config_setting(
+    name = "config_osx_aarch64",
+    values = {"cpu": "osx-aarch_64"},
+)
+
+config_setting(
+    name = "config_osx_x86_64",
+    values = {"cpu": "osx-aarch_64"},
+)
+
+selects.config_setting_group(
+    name = "config_osx",
+    match_any = [
+        "@platforms//os:osx",
+        ":config_osx_aarch64",
+        ":config_osx_x86_64",
+    ]
+)
+
 # Internal testing:
 
 starlark_cc_proto_library(

toolchain/cc_toolchain_config.bzl

@@ -98,6 +98,7 @@ def _impl(ctx):
                         flags = [
                             "-B" + ctx.attr.linker_path,
                             "-lstdc++",
+                            "-lm",
                             "--target=" + ctx.attr.target_full_name,
                         ] + ctx.attr.extra_linker_flags,
                     ),