From 377ff11ec9995d2842257daa7edde4e57320512e Mon Sep 17 00:00:00 2001
From: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
Date: Sun, 16 Jun 2024 19:48:55 +0200
Subject: Link frameworks used by recent macOS versions with -weak_framework

This allows FLTK apps to use the recent frameworks when they run on recent
macOS versions even if the minimum supported macOS version of these apps is more
ancient than the framework.
---
 CMake/setup.cmake | 27 +++++----------------------
 1 file changed, 5 insertions(+), 22 deletions(-)

(limited to 'CMake/setup.cmake')

diff --git a/CMake/setup.cmake b/CMake/setup.cmake
index 04cc5d90a..332b92931 100644
--- a/CMake/setup.cmake
+++ b/CMake/setup.cmake
@@ -123,31 +123,14 @@ if(APPLE)
     endif(NOT(${CMAKE_SYSTEM_VERSION} VERSION_LESS 17.0.0))
   else()
     set(FLTK_COCOA_FRAMEWORKS "-framework Cocoa")
-    set(UTI_CONDITION FALSE) # TRUE when framework UniformTypeIdentifiers is used
-    set(SCK_CONDITION FALSE) # TRUE when framework ScreenCaptureKit is used
-    string(LENGTH "${CMAKE_OSX_DEPLOYMENT_TARGET}" TARGET_LEN)
-    string(LENGTH "${CMAKE_SYSTEM_VERSION}" SDK_LEN)
-    if(TARGET_LEN GREATER 0)
-      if( ${CMAKE_OSX_DEPLOYMENT_TARGET} VERSION_GREATER_EQUAL 11.0)
-        set(UTI_CONDITION TRUE)
+    if (NOT (CMAKE_OSX_ARCHITECTURES STREQUAL "ppc" OR CMAKE_OSX_ARCHITECTURES STREQUAL "i386"))
+      if(${CMAKE_SYSTEM_VERSION} VERSION_GREATER_EQUAL 20.0) # a.k.a. macOS version ≥ 11.0
+        list(APPEND FLTK_COCOA_FRAMEWORKS "-weak_framework UniformTypeIdentifiers")
       endif()
-      if( ${CMAKE_OSX_DEPLOYMENT_TARGET} VERSION_GREATER_EQUAL 15.0)
-        set(SCK_CONDITION TRUE)
-      endif()
-    elseif(SDK_LEN GREATER 0)
-      if( ${CMAKE_SYSTEM_VERSION} VERSION_GREATER_EQUAL 20.0 )
-        set(UTI_CONDITION TRUE)
-      endif()
-      if( ${CMAKE_SYSTEM_VERSION} VERSION_GREATER_EQUAL 24.0 )
-        set(SCK_CONDITION TRUE)
+      if(${CMAKE_SYSTEM_VERSION} VERSION_GREATER_EQUAL 24.0) # a.k.a. macOS version ≥ 15.0
+        list(APPEND FLTK_COCOA_FRAMEWORKS "-weak_framework ScreenCaptureKit")
       endif()
     endif()
-    if(UTI_CONDITION) # a.k.a. macOS version ≥ 11.0
-      list(APPEND FLTK_COCOA_FRAMEWORKS "-framework UniformTypeIdentifiers")
-      if(SCK_CONDITION) # a.k.a. macOS version ≥ 15.0
-        list(APPEND FLTK_COCOA_FRAMEWORKS "-framework ScreenCaptureKit")
-      endif(SCK_CONDITION)
-    endif(UTI_CONDITION)
   endif(FLTK_BACKEND_X11)
 endif(APPLE)
 
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