From a0e08a4e0a361910be61adcb8d7a410e67a59476 Mon Sep 17 00:00:00 2001
From: Sergey Fedorov <vital.had@gmail.com>
Date: Thu, 1 Jan 2026 04:17:38 +0800
Subject: [PATCH] Fix build on 10.6 powerpc

---
 macosx/tkMacOSXPrivate.h     | 16 ++++++++--------
 macosx/tkMacOSXWindowEvent.c |  3 ++-
 2 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/macosx/tkMacOSXPrivate.h b/macosx/tkMacOSXPrivate.h
index fc5f13cc69..5cbb2e4a4c 100644
--- macosx/tkMacOSXPrivate.h
+++ macosx/tkMacOSXPrivate.h
@@ -317,8 +317,8 @@ VISIBILITY_HIDDEN
     NSAutoreleasePool *_mainPool;
     NSThread *_backgoundLoop;
 
-#ifdef __i386__
-    /* The Objective C runtime used on i386 requires this. */
+#if defined(__i386__) || defined(__POWERPC__)
+    /* The Objective C runtime used on i386 and PowerPC requires this. */
     int _poolLock;
     int _macOSVersion;  /* 10000 * major + 100*minor */
     Bool _isDrawing;
@@ -445,8 +445,8 @@ VISIBILITY_HIDDEN
 VISIBILITY_HIDDEN
 @interface TKWindow : NSWindow
 {
-#ifdef __i386__
-    /* The Objective C runtime used on i386 requires this. */
+#if defined(__i386__) || defined(__POWERPC__)
+    /* The Objective C runtime used on i386 and PowerPC requires this. */
     Window _tkWindow;
 #endif
 }
@@ -460,8 +460,8 @@ VISIBILITY_HIDDEN
 @interface TKDrawerWindow : NSWindow
 {
     id _i1, _i2;
-#ifdef __i386__
-    /* The Objective C runtime used on i386 requires this. */
+#if defined(__i386__) || defined(__POWERPC__)
+    /* The Objective C runtime used on i386 and PowerPC requires this. */
     Window _tkWindow;
 #endif
 }
@@ -470,8 +470,8 @@ VISIBILITY_HIDDEN
 
 @interface TKPanel : NSPanel
 {
-#ifdef __i386__
-    /* The Objective C runtime used on i386 requires this. */
+#if defined(__i386__) || defined(__POWERPC__)
+    /* The Objective C runtime used on i386 and PowerPC requires this. */
     Window _tkWindow;
 #endif
 }
diff --git a/macosx/tkMacOSXWindowEvent.c b/macosx/tkMacOSXWindowEvent.c
index 2c28cbcea6..31186ab8ed 100644
--- macosx/tkMacOSXWindowEvent.c
+++ macosx/tkMacOSXWindowEvent.c
@@ -992,10 +992,11 @@ ConfigureRestrictProc(
 
 	self.layer = [CALayer layer];
 	self.wantsLayer = YES;
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
 	self.layerContentsRedrawPolicy = NSViewLayerContentsRedrawOnSetNeedsDisplay;
 	self.layer.contentsGravity = self.layer.contentsAreFlipped ?
 	    kCAGravityTopLeft : kCAGravityBottomLeft;
-
+#endif
 	/*
 	 * Nothing gets drawn at all if the layer does not have a delegate.
 	 * Currently, we do not implement any methods of the delegate, however.