Add stub ios toolchain to bazel BUILD.static

--
PiperOrigin-RevId: 142775180
MOS_MIGRATED_REVID=142775180

tools/cpp/BUILD.static

diff --git a/tools/cpp/BUILD.static b/tools/cpp/BUILD.static
index 6f52c9d..43bdad8 100644
--- a/tools/cpp/BUILD.static
+++ b/tools/cpp/BUILD.static
@@ -21,6 +21,7 @@
         "freebsd|compiler": ":cc-compiler-freebsd",
         "x64_windows|windows_msys64": ":cc-compiler-x64_windows",
         "x64_windows_msvc|cl": ":cc-compiler-x64_windows_msvc",
+        "ios_x86_64|compiler": ":cc-compiler-ios_x86_64",
     },
 )
 
@@ -80,6 +81,20 @@
     supports_param_files = 1,
 )
 
+cc_toolchain(
+    name = "cc-compiler-ios_x86_64",
+    all_files = ":empty",
+    compiler_files = ":empty",
+    cpu = "local",
+    dwp_files = ":empty",
+    dynamic_runtime_libs = [":empty"],
+    linker_files = ":empty",
+    objcopy_files = ":empty",
+    static_runtime_libs = [":empty"],
+    strip_files = ":empty",
+    supports_param_files = 0,
+)
+
 filegroup(
     name = "every-file-x64_windows",
     srcs = [