Coding - Suppress macOS system header warnings in multiple files (#997)

- Added clang diagnostic pragmas to suppress three specific warning types around macOS/iOS framework imports
- Added version-specific warning suppression for clang 20+ in the general warnings disable header
- Extended function cast warning suppression to cover clang's `-Wcast-function-type-mismatch`

src/Draw/TKDraw/Draw/Draw_Window_1.mm

@@ -13,7 +13,13 @@
 
 #if defined(__APPLE__) && !defined(HAVE_XLIB)
 
+// Suppress warnings from macOS system headers
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+#pragma clang diagnostic ignored "-Wmissing-method-return-type"
+#pragma clang diagnostic ignored "-Wavailability"
 #import <Cocoa/Cocoa.h>
+#pragma clang diagnostic pop
 
 #include <Draw_Window.hxx>
 #include <Cocoa_LocalPool.hxx>

src/Draw/TKViewerTest/ViewerTest/ViewerTest_ViewerCommands_1.mm

@@ -13,7 +13,13 @@
 
 #if defined(__APPLE__) && !defined(HAVE_XLIB)
 
+// Suppress warnings from macOS system headers
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+#pragma clang diagnostic ignored "-Wmissing-method-return-type"
+#pragma clang diagnostic ignored "-Wavailability"
 #import <Cocoa/Cocoa.h>
+#pragma clang diagnostic pop
 
 #include <Cocoa_Window.hxx>
 #include <ViewerTest.hxx>

src/FoundationClasses/TKernel/Standard/Standard_WarningDisableFunctionCast.hxx

@@ -24,7 +24,9 @@
 //! There is no way to prevent this warning at OCCT level (until safer APIs is introduced), thus
 //! suppressing it is the only feasible way to avoid it. As this warning still can point out broken
 //! places, it should be suppressed only locally, where usage of function cast has been verified.
-#if defined(__GNUC__) && !defined(__INTEL_COMPILER) && !defined(__clang__)
+#if defined(__clang__)
+  #pragma clang diagnostic ignored "-Wcast-function-type-mismatch"
+#elif defined(__GNUC__) && !defined(__INTEL_COMPILER)
   #if (__GNUC__ > 8) || ((__GNUC__ == 8) && (__GNUC_MINOR__ >= 1))
     #pragma GCC diagnostic ignored "-Wcast-function-type"
   #endif

src/FoundationClasses/TKernel/Standard/Standard_WarningsDisable.hxx

@@ -33,6 +33,9 @@
   #pragma clang diagnostic ignored "-Wextra"
   #pragma clang diagnostic ignored "-Wshorten-64-to-32"
   #pragma clang diagnostic ignored "-Wdeprecated-declarations"
+  #if __clang_major__ >= 20
+    #pragma clang diagnostic ignored "-Wnontrivial-memcall"
+  #endif
 #elif defined(_MSC_VER)
   #pragma warning(push, 0)
 #elif defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))

src/Visualization/TKOpenGl/OpenGl/OpenGl_Context_1.mm

@@ -24,11 +24,17 @@
 
 #import <TargetConditionals.h>
 
+// Suppress warnings from macOS system headers
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+#pragma clang diagnostic ignored "-Wmissing-method-return-type"
+#pragma clang diagnostic ignored "-Wavailability"
 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
   #import <UIKit/UIKit.h>
 #else
   #import <Cocoa/Cocoa.h>
 #endif
+#pragma clang diagnostic pop
 
 #include <OpenGl_GlCore11.hxx>
 #include <OpenGl_Context.hxx>

src/Visualization/TKOpenGl/OpenGl/OpenGl_Window_1.mm

@@ -24,17 +24,24 @@
 
 #import <TargetConditionals.h>
 
+// Suppress warnings from macOS system headers
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+#pragma clang diagnostic ignored "-Wmissing-method-return-type"
+#pragma clang diagnostic ignored "-Wavailability"
 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
   #import <UIKit/UIKit.h>
 #else
   #import <Cocoa/Cocoa.h>
+#endif
+#pragma clang diagnostic pop
 
+#if !defined(TARGET_OS_IPHONE) || !TARGET_OS_IPHONE
 #if !defined(MAC_OS_X_VERSION_10_7) || (MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_7)
 @interface NSView (LionAPI)
 - (NSSize )convertSizeToBacking: (NSSize )theSize;
 @end
 #endif
-
 #endif
 
 #include <OpenGl_Window.hxx>

src/Visualization/TKService/Cocoa/Cocoa_LocalPool.mm

@@ -17,11 +17,17 @@
 
 #import <TargetConditionals.h>
 
+// Suppress warnings from macOS system headers
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+#pragma clang diagnostic ignored "-Wmissing-method-return-type"
+#pragma clang diagnostic ignored "-Wavailability"
 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
   #import <UIKit/UIKit.h>
 #else
   #import <Cocoa/Cocoa.h>
 #endif
+#pragma clang diagnostic pop
 
 #ifndef HAVE_OBJC_ARC
 

src/Visualization/TKService/Cocoa/Cocoa_Window.mm

@@ -15,11 +15,17 @@
 
 #import <TargetConditionals.h>
 
+// Suppress warnings from macOS system headers
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+#pragma clang diagnostic ignored "-Wmissing-method-return-type"
+#pragma clang diagnostic ignored "-Wavailability"
 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
   #import <UIKit/UIKit.h>
 #else
   #import <Cocoa/Cocoa.h>
 #endif
+#pragma clang diagnostic pop
 
 #include <Cocoa_Window.hxx>