From cb399a57ffaff27051c70cd361b00b3f2ae4366a Mon Sep 17 00:00:00 2001
From: reuk <reuk@users.noreply.github.com>
Date: Wed, 21 Apr 2021 11:15:26 +0100
Subject: [PATCH] CMake:  Link CoreServices weakly when building for iOS 11 or
 lower

---
 extras/Build/CMake/JUCEUtils.cmake | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/extras/Build/CMake/JUCEUtils.cmake b/extras/Build/CMake/JUCEUtils.cmake
index b2d7a06f9f..d39b28e4b8 100644
--- a/extras/Build/CMake/JUCEUtils.cmake
+++ b/extras/Build/CMake/JUCEUtils.cmake
@@ -482,7 +482,14 @@ function(_juce_link_frameworks target visibility)
             find_library("juce_found_${framework}" "${framework}" REQUIRED)
             target_link_libraries("${target}" "${visibility}" "${juce_found_${framework}}")
         elseif(CMAKE_SYSTEM_NAME STREQUAL "iOS")
-            target_link_libraries("${target}" "${visibility}" "-framework ${framework}")
+            # CoreServices is only available on iOS 12+, we must link it weakly on earlier platforms
+            if((framework STREQUAL "CoreServices") AND (CMAKE_OSX_DEPLOYMENT_TARGET LESS 12.0))
+                set(framework_flags "-weak_framework ${framework}")
+            else()
+                set(framework_flags "-framework ${framework}")
+            endif()
+
+            target_link_libraries("${target}" "${visibility}" "${framework_flags}")
         endif()
     endforeach()
 endfunction()