PR #1495: CMake: Link CoreFoundation with -framework

Imported from GitHub PR https://github.com/abseil/abseil-cpp/pull/1495

This fixes https://github.com/abseil/abseil-cpp/issues/1494

With CMake 3.24 we can also use `$<LINK_LIBRARY:FRAMEWORK,CoreFoundation>`
but abseil is still at CMake 3.10

The change has been tested here: https://github.com/daschuer/vcpkg/actions/runs/5670741925

Merge f3ff6bc01ff45970d2b803ca51421483b423b72b into c9c0fd51

Merging this change closes #1495

COPYBARA_INTEGRATE_REVIEW=https://github.com/abseil/abseil-cpp/pull/1495 from daschuer:framework-link-fix f3ff6bc01ff45970d2b803ca51421483b423b72b
PiperOrigin-RevId: 552564485
Change-Id: I57b580e5795c54865576110e56220128d8b603b8

absl/time/CMakeLists.txt

@@ -54,10 +54,6 @@ absl_cc_library(
     ${ABSL_DEFAULT_COPTS}
     ${ABSL_DEFAULT_COPTS}
 )
 )
 
 
-if(APPLE)
-  find_library(CoreFoundation CoreFoundation)
-endif()
-
 absl_cc_library(
 absl_cc_library(
   NAME
   NAME
     time_zone
     time_zone
@@ -85,7 +81,9 @@ absl_cc_library(
     ${ABSL_DEFAULT_COPTS}
     ${ABSL_DEFAULT_COPTS}
   DEPS
   DEPS
     Threads::Threads
     Threads::Threads
-    $<$<PLATFORM_ID:Darwin>:${CoreFoundation}>
+    # TODO(#1495): Use $<LINK_LIBRARY:FRAMEWORK,CoreFoundation> once our
+    # minimum CMake version >= 3.24
+    $<$<PLATFORM_ID:Darwin>:-Wl,-framework,CoreFoundation>
 )
 )
 
 
 # Internal-only target, do not depend on directly.
 # Internal-only target, do not depend on directly.