From 70b84b491b889ecb528e46aae20b6105e0b96065 Mon Sep 17 00:00:00 2001
From: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
Date: Fri, 3 May 2024 15:23:42 +0200
Subject: macOS + CMake: fix use of optional framework UniformTypeIdentifiers

---
 CMake/setup.cmake | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'CMake/setup.cmake')

diff --git a/CMake/setup.cmake b/CMake/setup.cmake
index 3b6708416..5419fb7f2 100644
--- a/CMake/setup.cmake
+++ b/CMake/setup.cmake
@@ -123,7 +123,19 @@ if(APPLE)
     endif(NOT(${CMAKE_SYSTEM_VERSION} VERSION_LESS 17.0.0))
   else()
     set(FLTK_COCOA_FRAMEWORKS "-framework Cocoa")
-    if(NOT(${CMAKE_SYSTEM_VERSION} VERSION_LESS 20.0.0)) # a.k.a. macOS version ≥ 11.0
+    set(UTI_CONDITION FALSE)
+    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)
+      endif()
+    elseif(SDK_LEN GREATER 0)
+      if( ${CMAKE_SYSTEM_VERSION} VERSION_GREATER_EQUAL 20.0 )
+        set(UTI_CONDITION TRUE)
+      endif()
+    endif()
+    if(UTI_CONDITION) # a.k.a. macOS version ≥ 11.0
       if (NOT (CMAKE_OSX_ARCHITECTURES STREQUAL "ppc" OR CMAKE_OSX_ARCHITECTURES STREQUAL "i386"))
         list(APPEND FLTK_COCOA_FRAMEWORKS "-framework UniformTypeIdentifiers")
       endif()
-- 
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