Import of CCTZ from GitHub.

PiperOrigin-RevId: 485921596
Change-Id: I453801e3d7b4a60ecedf173d448c8b6f51cb0b2e

absl/time/internal/cctz/BUILD.bazel

@@ -21,20 +21,6 @@ filegroup(
     srcs = glob(["testdata/zoneinfo/**"]),
 )
 
-config_setting(
-    name = "osx",
-    constraint_values = [
-        "@platforms//os:osx",
-    ],
-)
-
-config_setting(
-    name = "ios",
-    constraint_values = [
-        "@platforms//os:ios",
-    ],
-)
-
 ### libraries
 
 cc_library(
@@ -72,15 +58,10 @@ cc_library(
         "include/cctz/time_zone.h",
         "include/cctz/zone_info_source.h",
     ],
-    linkopts = select({
-        ":osx": [
-            "-framework Foundation",
-        ],
-        ":ios": [
-            "-framework Foundation",
-        ],
-        "//conditions:default": [],
-    }),
+    # OS X and iOS no longer use `linkopts = ["-framework CoreFoundation"]`
+    # as (1) bazel adds it automatically, and (2) it caused problems when
+    # cross-compiling for Android.
+    # See https://github.com/abseil/abseil-cpp/issues/326 for details.
     visibility = ["//visibility:public"],
     deps = [
         ":civil_time",