From 1abdeda280d58f9b6c965d2cc37637d5a96fdf19 Mon Sep 17 00:00:00 2001
From: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
Date: Wed, 4 Jun 2025 09:48:44 +0200
Subject: [PATCH] macOS: protect uses of __block by #if defined(__BLOCKS__)
 condition

---
 src/Fl_cocoa.mm | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Fl_cocoa.mm b/src/Fl_cocoa.mm
index c57a7f4b3..449c5a2c6 100644
--- a/src/Fl_cocoa.mm
+++ b/src/Fl_cocoa.mm
@@ -4722,7 +4722,7 @@ int Fl_Cocoa_Window_Driver::decorated_h()
   return h() + bt/s;
 }
 
-#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_VERSION_15_0
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_VERSION_15_0 && defined(__BLOCKS__)
 
 // Requires -weak_framework ScreenCaptureKit and used by FLTK for macOS ≥ 15.0
 static CGImageRef capture_decorated_window_SCK(NSWindow *nswin) {
@@ -4807,7 +4807,7 @@ CGImageRef Fl_Cocoa_Window_Driver::capture_decorated_window_10_5(NSWindow *nswin
   // usable with 10.5 and above
   CGImageRef img = NULL;
 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
-#  if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_VERSION_15_0
+#  if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_VERSION_15_0 && defined(__BLOCKS__)
   if (fl_mac_os_version >= 150000)
       img = capture_decorated_window_SCK(nswin);
   else