Support building on Windows with Clang MSVC target

ChangeLog

@@ -8,6 +8,195 @@
 	Use statbuf.st_mtim to get nanosecond precision in modification
 	date, also fix conversion of nanoseconds in creation date.
 
+2021-01-29 Frederik Seiffert <frederik@algoriddim.com>
+
+	* Headers/Foundation/NSAffineTransform.h:
+	* Headers/Foundation/NSAppleEventDescriptor.h:
+	* Headers/Foundation/NSAppleEventManager.h:
+	* Headers/Foundation/NSAppleScript.h:
+	* Headers/Foundation/NSArchiver.h:
+	* Headers/Foundation/NSArray.h:
+	* Headers/Foundation/NSAttributedString.h:
+	* Headers/Foundation/NSAutoreleasePool.h:
+	* Headers/Foundation/NSBackgroundActivityScheduler.h:
+	* Headers/Foundation/NSBundle.h:
+	* Headers/Foundation/NSByteCountFormatter.h:
+	* Headers/Foundation/NSCache.h:
+	* Headers/Foundation/NSCalendar.h:
+	* Headers/Foundation/NSCalendarDate.h:
+	* Headers/Foundation/NSCharacterSet.h:
+	* Headers/Foundation/NSClassDescription.h:
+	* Headers/Foundation/NSCoder.h:
+	* Headers/Foundation/NSComparisonPredicate.h:
+	* Headers/Foundation/NSCompoundPredicate.h:
+	* Headers/Foundation/NSConnection.h:
+	* Headers/Foundation/NSData.h:
+	* Headers/Foundation/NSDate.h:
+	* Headers/Foundation/NSDateComponentsFormatter.h:
+	* Headers/Foundation/NSDateFormatter.h:
+	* Headers/Foundation/NSDateInterval.h:
+	* Headers/Foundation/NSDateIntervalFormatter.h:
+	* Headers/Foundation/NSDictionary.h:
+	* Headers/Foundation/NSDistantObject.h:
+	* Headers/Foundation/NSDistributedLock.h:
+	* Headers/Foundation/NSEnergyFormatter.h:
+	* Headers/Foundation/NSEnumerator.h:
+	* Headers/Foundation/NSError.h:
+	* Headers/Foundation/NSException.h:
+	* Headers/Foundation/NSExpression.h:
+	* Headers/Foundation/NSExtensionContext.h:
+	* Headers/Foundation/NSExtensionItem.h:
+	* Headers/Foundation/NSFileCoordinator.h:
+	* Headers/Foundation/NSFileHandle.h:
+	* Headers/Foundation/NSFileManager.h:
+	* Headers/Foundation/NSFileVersion.h:
+	* Headers/Foundation/NSFileWrapper.h:
+	* Headers/Foundation/NSGarbageCollector.h:
+	* Headers/Foundation/NSHTTPCookie.h:
+	* Headers/Foundation/NSHTTPCookieStorage.h:
+	* Headers/Foundation/NSHashTable.h:
+	* Headers/Foundation/NSHost.h:
+	* Headers/Foundation/NSISO8601DateFormatter.h:
+	* Headers/Foundation/NSInvocation.h:
+	* Headers/Foundation/NSInvocationOperation.h:
+	* Headers/Foundation/NSItemProvider.h:
+	* Headers/Foundation/NSItemProviderReadingWriting.h:
+	* Headers/Foundation/NSJSONSerialization.h:
+	* Headers/Foundation/NSKeyedArchiver.h:
+	* Headers/Foundation/NSLengthFormatter.h:
+	* Headers/Foundation/NSLinguisticTagger.h:
+	* Headers/Foundation/NSLocale.h:
+	* Headers/Foundation/NSLock.h:
+	* Headers/Foundation/NSMapTable.h:
+	* Headers/Foundation/NSMassFormatter.h:
+	* Headers/Foundation/NSMeasurement.h:
+	* Headers/Foundation/NSMeasurementFormatter.h:
+	* Headers/Foundation/NSMetadata.h:
+	* Headers/Foundation/NSMethodSignature.h:
+	* Headers/Foundation/NSNetServices.h:
+	* Headers/Foundation/NSNotification.h:
+	* Headers/Foundation/NSNotificationQueue.h:
+	* Headers/Foundation/NSNumberFormatter.h:
+	* Headers/Foundation/NSObjCRuntime.h:
+	* Headers/Foundation/NSObject.h:
+	* Headers/Foundation/NSObjectScripting.h:
+	* Headers/Foundation/NSOperation.h:
+	* Headers/Foundation/NSOrderedSet.h:
+	* Headers/Foundation/NSOrthography.h:
+	* Headers/Foundation/NSPersonNameComponents.h:
+	* Headers/Foundation/NSPersonNameComponentsFormatter.h:
+	* Headers/Foundation/NSPointerArray.h:
+	* Headers/Foundation/NSPointerFunctions.h:
+	* Headers/Foundation/NSPort.h:
+	* Headers/Foundation/NSPortCoder.h:
+	* Headers/Foundation/NSPortNameServer.h:
+	* Headers/Foundation/NSPredicate.h:
+	* Headers/Foundation/NSProcessInfo.h:
+	* Headers/Foundation/NSProgress.h:
+	* Headers/Foundation/NSPropertyList.h:
+	* Headers/Foundation/NSProtocolChecker.h:
+	* Headers/Foundation/NSProxy.h:
+	* Headers/Foundation/NSRegularExpression.h:
+	* Headers/Foundation/NSRunLoop.h:
+	* Headers/Foundation/NSScanner.h:
+	* Headers/Foundation/NSScriptClassDescription.h:
+	* Headers/Foundation/NSScriptCoercionHandler.h:
+	* Headers/Foundation/NSScriptCommand.h:
+	* Headers/Foundation/NSScriptCommandDescription.h:
+	* Headers/Foundation/NSScriptExecutionContext.h:
+	* Headers/Foundation/NSScriptKeyValueCoding.h:
+	* Headers/Foundation/NSScriptObjectSpecifiers.h:
+	* Headers/Foundation/NSScriptStandardSuiteCommands.h:
+	* Headers/Foundation/NSScriptSuiteRegistry.h:
+	* Headers/Foundation/NSSerialization.h:
+	* Headers/Foundation/NSSet.h:
+	* Headers/Foundation/NSSortDescriptor.h:
+	* Headers/Foundation/NSSpellServer.h:
+	* Headers/Foundation/NSStream.h:
+	* Headers/Foundation/NSString.h:
+	* Headers/Foundation/NSTask.h:
+	* Headers/Foundation/NSTextCheckingResult.h:
+	* Headers/Foundation/NSThread.h:
+	* Headers/Foundation/NSTimeZone.h:
+	* Headers/Foundation/NSTimer.h:
+	* Headers/Foundation/NSURL.h:
+	* Headers/Foundation/NSURLAuthenticationChallenge.h:
+	* Headers/Foundation/NSURLCache.h:
+	* Headers/Foundation/NSURLConnection.h:
+	* Headers/Foundation/NSURLCredential.h:
+	* Headers/Foundation/NSURLCredentialStorage.h:
+	* Headers/Foundation/NSURLDownload.h:
+	* Headers/Foundation/NSURLHandle.h:
+	* Headers/Foundation/NSURLProtectionSpace.h:
+	* Headers/Foundation/NSURLProtocol.h:
+	* Headers/Foundation/NSURLRequest.h:
+	* Headers/Foundation/NSURLResponse.h:
+	* Headers/Foundation/NSURLSession.h:
+	* Headers/Foundation/NSUUID.h:
+	* Headers/Foundation/NSUbiquitousKeyValueStore.h:
+	* Headers/Foundation/NSUndoManager.h:
+	* Headers/Foundation/NSUnit.h:
+	* Headers/Foundation/NSUserActivity.h:
+	* Headers/Foundation/NSUserDefaults.h:
+	* Headers/Foundation/NSUserNotification.h:
+	* Headers/Foundation/NSUserScriptTask.h:
+	* Headers/Foundation/NSValue.h:
+	* Headers/Foundation/NSValueTransformer.h:
+	* Headers/Foundation/NSXMLDTD.h:
+	* Headers/Foundation/NSXMLDTDNode.h:
+	* Headers/Foundation/NSXMLDocument.h:
+	* Headers/Foundation/NSXMLElement.h:
+	* Headers/Foundation/NSXMLNode.h:
+	* Headers/Foundation/NSXMLParser.h:
+	* Headers/Foundation/NSXPCConnection.h:
+	* Headers/GNUstepBase/CXXException.h:
+	* Headers/GNUstepBase/GCObject.h:
+	* Headers/GNUstepBase/GSConfig.h.in:
+	* Headers/GNUstepBase/GSMime.h:
+	* Headers/GNUstepBase/GSTLS.h:
+	* Headers/GNUstepBase/GSVersionMacros.h:
+	* Headers/GNUstepBase/GSXML.h:
+	* Headers/GNUstepBase/NSStream+GNUstepBase.h:
+	* Source/Additions/GSXML.m:
+	* Source/Additions/Makefile.preamble:
+	* Source/CXXException.m:
+	* Source/GNUmakefile:
+	* Source/NSException.m:
+	* Source/NSFileManager.m:
+	* Source/NSPropertyList.m:
+	* Source/NSSocketPort.m:
+	* Source/ObjectiveC2/Makefile.preamble:
+	* Source/common.h:
+	* Source/externs.m:
+	* Source/inet_ntop.m:
+	* Source/inet_pton.m:
+	* Source/libgnustep-base-entry.m:
+	* Source/unix/Makefile.preamble:
+	* Source/win32/GSFileHandle.m:
+	* Source/win32/Makefile.preamble:
+	* Tools/GNUmakefile:
+	* Tools/Makefile.preamble:
+	* Tools/gdnc.m:
+	* Tools/make_strings/make_strings.m:
+	* Tools/pl2link.m:
+	* Tools/plutil.m:
+	* config/config.initialize.m:
+	* configure:
+	* configure.ac:
+	Added support for building on Windows with Clang MSVC target and
+	libobjc2. This requires using a standard (non-MinGW) Clang build that
+	e.g. comes with Visual Studio or is available as pre-built binary from
+	the LLVM website, and requires passing a host to configure like
+	--host=x86_64-pc-windows.
+	The build is best done in an MSYS2 shell that does not have any
+	additional *-devel packages installed that might get picked up by
+	configure. Alternatively --disable-xxx flags can be used to prevent
+	these dependencies to be picked up.
+	Annotates all ObjC class interfaces with GS_EXPORT_CLASS for DLL
+	export/import declarations, and adds missing GS_DECLARE annotations
+	in externs.m, in order for these symbols to be correctly exported
+	in the DLL.
+
 2021-01-21 Fred Kiefer <fredkiefer@gmx.de>
 
 	* Tools/pl2link.m (main): Set key StartupWMClass and allow file

Headers/Foundation/NSAffineTransform.h

@@ -41,6 +41,7 @@ typedef	struct {
   CGFloat	tY;
 } NSAffineTransformStruct;
 
+GS_EXPORT_CLASS
 @interface NSAffineTransform : NSObject <NSCopying, NSCoding>
 {
 #if GS_EXPOSE(NSAffineTransform)

Headers/Foundation/NSAppleEventDescriptor.h

@@ -33,6 +33,7 @@
 extern "C" {
 #endif
 
+GS_EXPORT_CLASS
 @interface NSAppleEventDescriptor : NSObject
 
 @end

Headers/Foundation/NSAppleEventManager.h

@@ -33,6 +33,7 @@
 extern "C" {
 #endif
 
+GS_EXPORT_CLASS
 @interface NSAppleEventManager : NSObject
 
 @end

Headers/Foundation/NSAppleScript.h

@@ -34,6 +34,7 @@ extern "C" {
 
 #if OS_API_VERSION(MAC_OS_X_VERSION_10_0, GS_API_LATEST)
 
+GS_EXPORT_CLASS
 @interface NSAppleScript : NSObject
 
 @end

Headers/Foundation/NSArchiver.h

@@ -40,6 +40,7 @@ extern "C" {
 
 #if	OS_API_VERSION(GS_API_OSSPEC,GS_API_LATEST)
 
+GS_EXPORT_CLASS
 @interface NSArchiver : NSCoder
 {
 #if	GS_EXPOSE(NSArchiver)
@@ -157,8 +158,9 @@ extern "C" {
 @end
 #endif
 
-
 
+
+GS_EXPORT_CLASS
 @interface NSUnarchiver : NSCoder
 {
 #if	GS_EXPOSE(NSUnarchiver)

Headers/Foundation/NSArray.h

@@ -57,6 +57,7 @@ enum
 typedef NSUInteger NSBinarySearchingOptions;
 #endif
 
+GS_EXPORT_CLASS
 @interface GS_GENERIC_CLASS(NSArray, __covariant ElementT) : NSObject
   <NSCoding, NSCopying, NSMutableCopying, NSFastEnumeration>
 
@@ -300,7 +301,8 @@ DEFINE_BLOCK_TYPE(GSPredicateBlock, BOOL, GS_GENERIC_TYPE(ElementT), NSUInteger,
 - (GS_GENERIC_TYPE(ElementT)) objectAtIndexedSubscript: (NSUInteger)anIndex;
 @end
 
-
+
+GS_EXPORT_CLASS
 @interface GS_GENERIC_CLASS(NSMutableArray, ElementT) : GS_GENERIC_CLASS(NSArray, ElementT)
 
 + (instancetype) arrayWithCapacity: (NSUInteger)numItems;

Headers/Foundation/NSAttributedString.h

@@ -61,6 +61,7 @@ extern "C" {
 #import	<Foundation/NSArray.h>
 #import	<Foundation/NSCoder.h>
 
+GS_EXPORT_CLASS
 @interface NSAttributedString : NSObject <NSCoding, NSCopying, NSMutableCopying>
 {
 }
@@ -100,6 +101,7 @@ extern "C" {
 @end //NSAttributedString
 
 
+GS_EXPORT_CLASS
 @interface NSMutableAttributedString : NSAttributedString
 {
 }

Headers/Foundation/NSAutoreleasePool.h

@@ -178,8 +178,8 @@ typedef struct autorelease_array_list
  *   </desc>
  * </deflist>
  */
-NS_AUTOMATED_REFCOUNT_UNAVAILABLE
+GS_EXPORT_CLASS NS_AUTOMATED_REFCOUNT_UNAVAILABLE
-@interface NSAutoreleasePool : NSObject 
+@interface NSAutoreleasePool : NSObject
 {
 #if	GS_EXPOSE(NSAutoreleasePool) && !__has_feature(objc_arc)
   /* For re-setting the current pool when we are dealloc'ed. */

Headers/Foundation/NSBackgroundActivityScheduler.h

@@ -65,6 +65,7 @@ typedef NSInteger NSQualityOfService;
   DEFINE_BLOCK_TYPE(GSScheduledBlock, void, NSBackgroundActivityCompletionHandler);  
 //# endif
 
+GS_EXPORT_CLASS
 @interface NSBackgroundActivityScheduler : NSObject
 {
   NSString *_identifier;

Headers/Foundation/NSBundle.h

@@ -109,6 +109,7 @@ GS_EXPORT NSString* const NSLoadedClasses;
    bundle.
    </p>
 */
+GS_EXPORT_CLASS
 @interface NSBundle : NSObject
 {
 #if	GS_EXPOSE(NSBundle)

Headers/Foundation/NSByteCountFormatter.h

@@ -60,7 +60,8 @@ enum {
   NSByteCountFormatterCountStyleBinary = 3,
 };
 typedef NSInteger NSByteCountFormatterCountStyle;
-  
+
+GS_EXPORT_CLASS
 @interface NSByteCountFormatter : NSFormatter
 {
 #if	GS_EXPOSE(NSByteCountFormatter)

Headers/Foundation/NSCache.h

@@ -38,6 +38,7 @@ extern "C" {
 @class NSMapTable;
 @class GS_GENERIC_CLASS(NSMutableArray, ElementT);
 
+GS_EXPORT_CLASS
 @interface GS_GENERIC_CLASS(NSCache, KeyT, ValT) : NSObject
 {
 #if GS_EXPOSE(NSCache)

Headers/Foundation/NSCalendar.h

@@ -148,6 +148,7 @@ enum
 
 
 
+GS_EXPORT_CLASS
 @interface NSDateComponents : NSObject <NSCopying>
 {
 @private
@@ -262,6 +263,7 @@ enum
 
 
 
+GS_EXPORT_CLASS
 @interface NSCalendar : NSObject <NSCoding, NSCopying>
 {
 @private

Headers/Foundation/NSCalendarDate.h

@@ -32,6 +32,7 @@ extern "C" {
 @class	NSTimeZone;
 @class	NSTimeZoneDetail;
 
+GS_EXPORT_CLASS
 @interface NSCalendarDate : NSDate
 {
 #if	GS_EXPOSE(NSCalendarDate)

Headers/Foundation/NSCharacterSet.h

@@ -39,6 +39,7 @@ extern "C" {
  *  Represents a set of unicode characters.  Used by [NSScanner] and [NSString]
  *  for parsing-related methods.
  */
+GS_EXPORT_CLASS
 @interface NSCharacterSet : NSObject <NSCoding, NSCopying, NSMutableCopying>
 
 /**
@@ -238,6 +239,7 @@ extern "C" {
 /**
  *  An [NSCharacterSet] that can be modified.
  */
+GS_EXPORT_CLASS
 @interface NSMutableCharacterSet : NSCharacterSet
 
 /**

Headers/Foundation/NSClassDescription.h

@@ -47,6 +47,7 @@ extern "C" {
  */
 GS_EXPORT NSString* const NSClassDescriptionNeededForClassNotification;
 
+GS_EXPORT_CLASS
 @interface NSClassDescription : NSObject
 
 + (NSClassDescription*) classDescriptionForClass: (Class)aClass;

Headers/Foundation/NSCoder.h

@@ -48,6 +48,7 @@ extern "C" {
  *  preferred for new implementations, since they provide greater
  *  forward/backward compatibility in the face of class changes.</p>
  */
+GS_EXPORT_CLASS
 @interface NSCoder : NSObject
 // Encoding Data
 

Headers/Foundation/NSComparisonPredicate.h

@@ -69,6 +69,7 @@ typedef enum _NSPredicateOperatorType
 #endif
 } NSPredicateOperatorType;
 
+GS_EXPORT_CLASS
 @interface NSComparisonPredicate : NSPredicate
 {
 #if	GS_EXPOSE(NSComparisonPredicate)

Headers/Foundation/NSCompoundPredicate.h

@@ -42,6 +42,7 @@ enum
 };
 typedef NSUInteger NSCompoundPredicateType;
 
+GS_EXPORT_CLASS
 @interface NSCompoundPredicate : NSPredicate
 {
 #if	GS_EXPOSE(NSCompoundPredicate)

Headers/Foundation/NSConnection.h

@@ -92,6 +92,7 @@ GS_EXPORT NSString* const NSConnectionProxyCount;	/* Objects received */
  *
  *	A few methods are in the specification but not yet implemented.
  */
+GS_EXPORT_CLASS
 @interface NSConnection : NSObject
 {
 #if	GS_NONFRAGILE

Headers/Foundation/NSData.h

@@ -81,6 +81,7 @@ enum {
 DEFINE_BLOCK_TYPE(GSDataDeallocatorBlock, void, void*, NSUInteger);
 #endif
 
+GS_EXPORT_CLASS
 @interface NSData : NSObject <NSCoding, NSCopying, NSMutableCopying>
 
 // Allocating and Initializing a Data Object
@@ -312,6 +313,7 @@ DEFINE_BLOCK_TYPE(GSDataDeallocatorBlock, void, void*, NSUInteger);
 @end
 #endif
 
+GS_EXPORT_CLASS
 @interface NSMutableData :  NSData
 
 + (id) dataWithCapacity: (NSUInteger)numBytes;

Headers/Foundation/NSDate.h

@@ -56,6 +56,7 @@ GS_EXPORT const NSTimeInterval NSTimeIntervalSince1970;
 @class NSTimeZone;
 @class NSTimeZoneDetail;
 
+GS_EXPORT_CLASS
 @interface NSDate : NSObject <NSCoding,NSCopying>
 {
 }

Headers/Foundation/NSDateComponentsFormatter.h

@@ -72,7 +72,8 @@ enum
 typedef NSUInteger NSDateComponentsFormatterZeroFormattingBehavior;
 
 @class NSString, NSDate;
-  
+
+GS_EXPORT_CLASS
 @interface NSDateComponentsFormatter : NSFormatter
 {
   NSCalendar *_calendar;

Headers/Foundation/NSDateFormatter.h

@@ -122,6 +122,7 @@ typedef NSUInteger NSDateFormatterBehavior;
  *  <desc>time zone offset in hours and minutes from GMT (HHMM)</desc>
  * </deflist>
  */
+GS_EXPORT_CLASS
 @interface NSDateFormatter : NSFormatter <NSCoding, NSCopying>
 {
 #if	GS_EXPOSE(NSDateFormatter)

Headers/Foundation/NSDateInterval.h

@@ -34,6 +34,7 @@ extern "C" {
 
 #if OS_API_VERSION(MAC_OS_X_VERSION_10_12, GS_API_LATEST)
 
+GS_EXPORT_CLASS
 @interface NSDateInterval : NSObject <NSCoding, NSCopying>
 {
   NSTimeInterval _duration;

Headers/Foundation/NSDateIntervalFormatter.h

@@ -44,7 +44,8 @@ enum {
 typedef NSUInteger NSDateIntervalFormatterStyle;
 
 @class NSCalendar, NSLocale, NSDateInterval;
-  
+
+GS_EXPORT_CLASS
 @interface NSDateIntervalFormatter : NSFormatter
 {
     NSLocale *_locale;

Headers/Foundation/NSDictionary.h

@@ -37,6 +37,7 @@ extern "C" {
 @class GS_GENERIC_CLASS(NSSet, ElementT);
 @class NSString, NSURL;
 
+GS_EXPORT_CLASS
 @interface GS_GENERIC_CLASS(NSDictionary,
   __covariant KeyT:id<NSCopying>, __covariant ValT)
   : NSObject <NSCoding, NSCopying, NSMutableCopying, NSFastEnumeration>
@@ -132,6 +133,7 @@ DEFINE_BLOCK_TYPE(GSKeysAndObjectsPredicateBlock, BOOL, GS_GENERIC_TYPE_F(KeyT,i
   (GS_GENERIC_TYPE(KeyT))aKey;
 @end
 
+GS_EXPORT_CLASS
 @interface  GS_GENERIC_CLASS(NSMutableDictionary, KeyT:id<NSCopying>, ValT) :
   GS_GENERIC_CLASS(NSDictionary, KeyT, ValT)
 

Headers/Foundation/NSDistantObject.h

@@ -35,6 +35,7 @@ extern "C" {
 
 @class	NSConnection;
 
+GS_EXPORT_CLASS
 @interface NSDistantObject : NSProxy <NSCoding>
 {
 #if	GS_EXPOSE(NSDistantObject)

Headers/Foundation/NSDistributedLock.h

@@ -36,6 +36,7 @@
 extern "C" {
 #endif
 
+GS_EXPORT_CLASS
 @interface NSDistributedLock : NSObject
 {
 #if	GS_EXPOSE(NSDistributedLock)

Headers/Foundation/NSEnergyFormatter.h

@@ -43,6 +43,7 @@ enum {
 };
 typedef NSInteger NSEnergyFormatterUnit;
 
+GS_EXPORT_CLASS
 @interface NSEnergyFormatter : NSFormatter
 {
   BOOL _isForFoodEnergyUse;

Headers/Foundation/NSEnumerator.h

@@ -51,6 +51,7 @@ typedef struct
 				     count: (NSUInteger)len;
 @end
 
+GS_EXPORT_CLASS
 @interface GS_GENERIC_CLASS(NSEnumerator, IterT) : NSObject <NSFastEnumeration>
 - (GS_GENERIC_CLASS(NSArray, IterT) *) allObjects;
 - (GS_GENERIC_TYPE(IterT)) nextObject;

Headers/Foundation/NSError.h

@@ -129,6 +129,7 @@ GS_EXPORT NSErrorDomain const NSCocoaErrorDomain;
  * by external factors (such as a resource file not being present)
  * rather than a programming error (where NSException should be used).
  */
+GS_EXPORT_CLASS
 @interface NSError : NSObject <NSCopying, NSCoding>
 {
 #if	GS_EXPOSE(NSError)

Headers/Foundation/NSException.h

@@ -110,6 +110,7 @@ extern "C" {
    message before the program terminates.
    </p>
 */
+GS_EXPORT_CLASS
 @interface NSException : NSObject <NSCoding, NSCopying>
 {    
 #if	GS_EXPOSE(NSException)
@@ -420,6 +421,7 @@ GS_EXPORT void _NSRemoveHandler( NSHandler *handler );
  * The numbered macros arre obsolete, dating from a time when NSAssert() and
  * NSCAssert() did not support a variable number of arguments.
  */
+GS_EXPORT_CLASS
 @interface NSAssertionHandler : NSObject
 
 + (NSAssertionHandler*) currentHandler;

Headers/Foundation/NSExpression.h

@@ -48,6 +48,7 @@ enum
 };
 typedef NSUInteger NSExpressionType;
 
+GS_EXPORT_CLASS
 @interface NSExpression : NSObject <NSCoding, NSCopying>
 {
 #if	GS_EXPOSE(NSExpression)

Headers/Foundation/NSExtensionContext.h

@@ -37,7 +37,8 @@ DEFINE_BLOCK_TYPE(GSExtensionContextReturningItemsCompletionHandler, void, BOOL)
 DEFINE_BLOCK_TYPE(GSOpenURLCompletionHandler, void, BOOL);
 
 @class NSError, NSArray, NSURL;
-  
+
+GS_EXPORT_CLASS
 @interface NSExtensionContext : NSObject
 {
   NSArray *_inputItems;

Headers/Foundation/NSExtensionItem.h

@@ -34,7 +34,8 @@ extern "C" {
 #endif
 
 @class NSAttributedString, NSArray, NSDictionary;
-  
+
+GS_EXPORT_CLASS
 @interface NSExtensionItem : NSObject
 {
   NSAttributedString *_attributedTitle;

Headers/Foundation/NSFileCoordinator.h

@@ -52,6 +52,7 @@ enum {
 };
 typedef NSUInteger NSFileCoordinatorWritingOptions;
 
+GS_EXPORT_CLASS
 @interface NSFileAccessIntent : NSObject
 {
   NSURL *_url;
@@ -72,6 +73,7 @@ DEFINE_BLOCK_TYPE(GSDualWriteURLCallbackHandler, void, NSURL*, NSURL*);
 DEFINE_BLOCK_TYPE_NO_ARGS(GSBatchAccessorCompletionHandler, void);
 DEFINE_BLOCK_TYPE(GSBatchAccessorCompositeBlock, void, GSBatchAccessorCompletionHandler);
 
+GS_EXPORT_CLASS
 @interface NSFileCoordinator : NSObject
 {
   id _purposeIdentifier;

Headers/Foundation/NSFileHandle.h

@@ -41,6 +41,7 @@ extern "C" {
 @class NSString;
 @class NSURL;
 
+GS_EXPORT_CLASS
 @interface NSFileHandle : NSObject
 
 // Allocating and Initializing a FileHandle Object
@@ -163,6 +164,7 @@ GS_EXPORT NSString * const NSFileHandleNotificationMonitorModes;
  */
 GS_EXPORT NSString * const NSFileHandleOperationException;
 
+GS_EXPORT_CLASS
 @interface NSPipe : NSObject
 {
 #if	GS_EXPOSE(NSPipe)

Headers/Foundation/NSFileManager.h

@@ -210,6 +210,7 @@ enum _NSDirectoryEnumerationOptions
   };
 typedef NSUInteger NSDirectoryEnumerationOptions; 
   
+GS_EXPORT_CLASS
 @interface NSFileManager : NSObject
 {
 #if	GS_EXPOSE(NSFileManager)
@@ -557,6 +558,7 @@ typedef NSUInteger NSDirectoryEnumerationOptions;
  *  and in the current implementation the natural order of the underlying
  *  filesystem is used.</p>
  */
+GS_EXPORT_CLASS
 @interface NSDirectoryEnumerator : NSEnumerator
 {
 #if	GS_EXPOSE(NSDirectoryEnumerator)

Headers/Foundation/NSFileVersion.h

@@ -42,6 +42,7 @@ enum {
 };
 typedef NSUInteger NSFileVersionAddingOptions;
 
+GS_EXPORT_CLASS
 @interface NSFileVersion : NSObject
 {
 @private

Headers/Foundation/NSFileWrapper.h

@@ -61,6 +61,7 @@ enum {
 typedef NSUInteger NSFileWrapperWritingOptions;
 #endif
 
+GS_EXPORT_CLASS
 @interface NSFileWrapper : NSObject 
 {
   NSString		*_filename;

Headers/Foundation/NSGarbageCollector.h

@@ -38,6 +38,7 @@ extern "C" {
 #endif
 
 
+GS_EXPORT_CLASS
 @interface NSGarbageCollector : NSObject 
 
 /** Returns the garbage collector instance ... there is only one.<br />

Headers/Foundation/NSHTTPCookie.h

@@ -63,6 +63,7 @@ extern NSString * const NSHTTPCookieVersion; /** Obtain cookie version */
  *  as originally produced by netscape, as well as more recent standardised
  *  and versioned cookies.
  */
+GS_EXPORT_CLASS
 @interface NSHTTPCookie :  NSObject
 {
 #if	GS_EXPOSE(NSHTTPCookie)

Headers/Foundation/NSHTTPCookieStorage.h

@@ -67,7 +67,7 @@ extern NSString * const NSHTTPCookieManagerCookiesChangedNotification;
  * The NSHTTPCookieStorage class provides a shared instance which handles
  * the shared cookie store.<br />
  */
-
+GS_EXPORT_CLASS
 @interface NSHTTPCookieStorage :  NSObject
 {
 #if	GS_EXPOSE(NSHTTPCookieStorage)

Headers/Foundation/NSHashTable.h

@@ -61,6 +61,7 @@ enum {
 
 typedef NSUInteger NSHashTableOptions;
 
+GS_EXPORT_CLASS
 @interface GS_GENERIC_CLASS(NSHashTable, ElementT) : NSObject <NSCopying, NSCoding, NSFastEnumeration>
 
 + (instancetype) hashTableWithOptions: (NSPointerFunctionsOptions)options;

Headers/Foundation/NSHost.h

@@ -37,6 +37,7 @@ extern "C" {
  *  Instances of this class encapsulate host information.  Constructors based
  *  on host name or numeric address are provided.
  */
+GS_EXPORT_CLASS
 @interface NSHost : NSObject
 {
 #if	GS_EXPOSE(NSHost)

Headers/Foundation/NSISO8601DateFormatter.h

@@ -59,7 +59,8 @@ enum
 typedef NSUInteger NSISO8601DateFormatOptions;
 
 @class NSTimeZone, NSString, NSDate, NSDateFormatter;
-  
+
+GS_EXPORT_CLASS
 @interface NSISO8601DateFormatter : NSFormatter <NSCoding>
 {
   NSTimeZone *_timeZone;

Headers/Foundation/NSInvocation.h

@@ -33,6 +33,7 @@
 extern "C" {
 #endif
 
+GS_EXPORT_CLASS
 @interface NSInvocation : NSObject
 {
 #if	GS_EXPOSE(NSInvocation)

Headers/Foundation/NSInvocationOperation.h

@@ -36,6 +36,7 @@ extern "C" {
 @class NSInvocation;
 @class NSException;
 
+GS_EXPORT_CLASS
 @interface NSInvocationOperation : NSOperation
 {
   @private

Headers/Foundation/NSItemProvider.h

@@ -90,6 +90,7 @@ typedef NSInteger NSItemProviderFileOptions;
 
 @end
 
+GS_EXPORT_CLASS
 @interface NSItemProvider : NSObject <NSCopying>
 
 - (instancetype) init;

Headers/Foundation/NSItemProviderReadingWriting.h

@@ -33,6 +33,7 @@
 extern "C" {
 #endif
 
+GS_EXPORT_CLASS
 @interface NSItemProviderReadingWriting : NSObject
 
 @end
@@ -44,4 +45,3 @@ extern "C" {
 #endif	/* GS_API_MACOSX */
 
 #endif	/* _NSItemProviderReadingWriting_h_GNUSTEP_BASE_INCLUDE */
-

Headers/Foundation/NSJSONSerialization.h

@@ -45,6 +45,7 @@ typedef NSUInteger NSJSONReadingOptions;
  * NSJSONSerialization implements serializing and deserializing acyclic object
  * graphs in JSON.
  */
+GS_EXPORT_CLASS
 @interface NSJSONSerialization : NSObject
  + (NSData *)dataWithJSONObject:(id)obj
                         options:(NSJSONWritingOptions)opt

Headers/Foundation/NSKeyedArchiver.h

@@ -50,6 +50,7 @@ extern "C" {
  *  <code>...forKey:</code> [NSCoder] methods, which provide for more robust
  *  forwards and backwards compatibility.
  */
+GS_EXPORT_CLASS
 @interface NSKeyedArchiver : NSCoder
 {
 #if	GS_EXPOSE(NSKeyedArchiver)
@@ -250,6 +251,7 @@ extern "C" {
  *  <code>...forKey:</code> [NSCoder] methods, which provide for more robust
  *  forwards and backwards compatibility.
  */
+GS_EXPORT_CLASS
 @interface NSKeyedUnarchiver : NSCoder
 {
 #if	GS_EXPOSE(NSKeyedUnarchiver)

Headers/Foundation/NSLengthFormatter.h

@@ -46,7 +46,8 @@ enum {
 typedef NSInteger NSLengthFormatterUnit;
 
 @class NSNumberFormatter, NSString;
-  
+
+GS_EXPORT_CLASS
 @interface NSLengthFormatter : NSFormatter
 {
   BOOL _isForPersonHeightUse;

Headers/Foundation/NSLinguisticTagger.h

@@ -107,7 +107,8 @@ typedef NSUInteger NSLinguisticTaggerOptions;
 
 DEFINE_BLOCK_TYPE(GSLinguisticTagRangeBoolBlock, void, NSLinguisticTag, NSRange, BOOL);
 DEFINE_BLOCK_TYPE(GSLinguisticTagRangeRangeBoolBlock, void, NSLinguisticTag, NSRange, NSRange, BOOL);
-  
+
+GS_EXPORT_CLASS
 @interface NSLinguisticTagger : NSObject
 {
   NSArray *_schemes;

Headers/Foundation/NSLocale.h

@@ -98,6 +98,7 @@ GS_EXPORT NSString * const NSISO8601Calendar;
  * Provides information describing language, date and time, and currency
  * information.
  */
+GS_EXPORT_CLASS
 @interface NSLocale : NSObject <NSCoding, NSCopying>
 {
 #if	GS_EXPOSE(NSLocale)

Headers/Foundation/NSLock.h

@@ -69,6 +69,7 @@ extern "C" {
  * [NSRecursiveLock], have different restrictions.
  * </p>
  */
+GS_EXPORT_CLASS
 @interface NSLock : NSObject <NSLocking>
 {
 #if	GS_EXPOSE(NSLock)

Headers/Foundation/NSMapTable.h

@@ -59,6 +59,7 @@ enum {
 
 typedef NSUInteger NSMapTableOptions;
 
+GS_EXPORT_CLASS
 @interface GS_GENERIC_CLASS(NSMapTable, KeyT, ValT)
   : NSObject <NSCopying, NSCoding, NSFastEnumeration>
 

Headers/Foundation/NSMassFormatter.h

@@ -44,7 +44,8 @@ enum {
 typedef NSInteger NSMassFormatterUnit;  
 
 @class NSNumberFormatter;
-  
+
+GS_EXPORT_CLASS
 @interface NSMassFormatter : NSObject
 {
   NSNumberFormatter *_numberFormatter;

Headers/Foundation/NSMeasurement.h

@@ -34,7 +34,8 @@ extern "C" {
 #endif
 
 @class NSUnit;
-  
+
+GS_EXPORT_CLASS
 @interface NSMeasurement : NSObject <NSCopying, NSCoding>
 {
   NSUnit *_unit;

Headers/Foundation/NSMeasurementFormatter.h

@@ -41,7 +41,8 @@ enum {
     NSMeasurementFormatterUnitOptionsTemperatureWithoutUnit = (1UL << 2),   
 };
 typedef NSUInteger NSMeasurementFormatterUnitOptions;
-  
+
+GS_EXPORT_CLASS
 @interface NSMeasurementFormatter : NSFormatter <NSCoding>
 {
   NSMeasurementFormatterUnitOptions _unitOptions;

Headers/Foundation/NSMetadata.h

@@ -35,6 +35,7 @@
 @class NSPredicate, NSMutableDictionary, NSDictionary, NSMutableArray;
 @protocol NSMetadataQueryDelegate;
 
+GS_EXPORT_CLASS
 @interface NSMetadataItem : NSObject
 {
 #if	GS_EXPOSE(NSMetadataItem)
@@ -61,6 +62,7 @@ GS_EXPORT NSString * const NSMetadataQueryDidUpdateNotification;
 GS_EXPORT NSString * const NSMetadataQueryGatheringProgressNotification;
 
 /* Abstract interface for metadata query... */
+GS_EXPORT_CLASS
 @interface NSMetadataQuery : NSObject
 {
 #if	GS_EXPOSE(NSMetadataQuery)
@@ -135,6 +137,7 @@ GS_EXPORT NSString * const NSMetadataQueryGatheringProgressNotification;
   value: (id)attributeValue;
 @end
 
+GS_EXPORT_CLASS
 @interface NSMetadataQueryAttributeValueTuple : NSObject
 {
 #if	GS_EXPOSE(NSMetadataQueryAttributeValueTuple)
@@ -150,6 +153,7 @@ GS_EXPORT NSString * const NSMetadataQueryGatheringProgressNotification;
 
 @end
 
+GS_EXPORT_CLASS
 @interface NSMetadataQueryResultGroup : NSObject
 {
 #if	GS_EXPOSE(NSMetadataQueryResultGroup)

Headers/Foundation/NSMethodSignature.h

@@ -47,6 +47,7 @@ extern "C" {
  * <code><em>self</em></code> (type <code>id</code>, at position 0) and
  * <code><em>_cmd</em></code> (type <code>SEL</code>, at position 1).</p>
  */
+GS_EXPORT_CLASS
 @interface NSMethodSignature : NSObject
 {
 #if	GS_EXPOSE(NSMethodSignature)

Headers/Foundation/NSNetServices.h

@@ -355,7 +355,7 @@ GS_EXPORT NSString * const NSNetServicesErrorDomain;
  *   superclass for concrete implementations of its functionality.
  * </p>
  */
-
+GS_EXPORT_CLASS
 @interface NSNetService : NSObject
 {
 #if	GS_EXPOSE(NSNetService)
@@ -441,7 +441,7 @@ GS_EXPORT NSString * const NSNetServicesErrorDomain;
  *   functionality.
  * </p>
  */
-
+GS_EXPORT_CLASS
 @interface NSNetServiceBrowser : NSObject
 {
 #if	GS_EXPOSE(NSNetServiceBrowser)

Headers/Foundation/NSNotification.h

@@ -44,7 +44,8 @@ extern "C" {
 @class NSOperationQueue;
 
 typedef NSString* NSNotificationName;
-  
+
+GS_EXPORT_CLASS
 @interface NSNotification : NSObject <NSCopying, NSCoding>
 
 /* Creating a Notification Object */
@@ -68,6 +69,7 @@ typedef NSString* NSNotificationName;
 DEFINE_BLOCK_TYPE(GSNotificationBlock, void, NSNotification *);
 #endif
 
+GS_EXPORT_CLASS
 @interface NSNotificationCenter : NSObject
 {
 #if	GS_EXPOSE(NSNotificationCenter)

Headers/Foundation/NSNotificationQueue.h

@@ -107,6 +107,7 @@ typedef NSUInteger NSNotificationCoalescing;
  */
 struct _NSNotificationQueueList;
 
+GS_EXPORT_CLASS
 @interface NSNotificationQueue : NSObject
 {
 #if	GS_EXPOSE(NSNotificationQueue)

Headers/Foundation/NSNumberFormatter.h

@@ -118,6 +118,7 @@ typedef NSUInteger NSNumberFormatterRoundingMode;
  * of attributes for positive and negative numbers, and for specific cases
  * including 0, NaN, and nil... </p>
  */
+GS_EXPORT_CLASS
 @interface NSNumberFormatter : NSFormatter
 {
 #if	GS_EXPOSE(NSNumberFormatter)

Headers/Foundation/NSObjCRuntime.h

@@ -315,4 +315,9 @@ typedef NSString* NSExceptionName;
 #endif
 #endif
 
+/* Undefine "interface" defined in Visual Studio MSVC headers. */
+#if defined(_MSC_VER) && defined(interface)
+#undef interface
+#endif
+
 #endif /* __NSObjCRuntime_h_GNUSTEP_BASE_INCLUDE */

Headers/Foundation/NSObject.h

@@ -288,7 +288,8 @@ extern "C" {
 @end
 
 
-GS_ROOT_CLASS @interface NSObject <NSObject>
+GS_EXPORT_CLASS GS_ROOT_CLASS
+@interface NSObject <NSObject>
 {
  /**
   * Points to instance's class.  Used by runtime to access method

Headers/Foundation/NSObjectScripting.h

@@ -33,6 +33,7 @@
 extern "C" {
 #endif
 
+GS_EXPORT_CLASS
 @interface NSObjectScripting : NSObject
 
 @end

Headers/Foundation/NSOperation.h

@@ -52,6 +52,7 @@ enum {
 
 typedef NSInteger NSOperationQueuePriority;
 
+GS_EXPORT_CLASS
 @interface NSOperation : NSObject
 {
 #if	GS_NONFRAGILE
@@ -200,6 +201,7 @@ typedef NSInteger NSOperationQueuePriority;
 
 @end
 
+GS_EXPORT_CLASS
 @interface NSBlockOperation : NSOperation
 {
   @private
@@ -223,6 +225,7 @@ enum {
    NSOperationQueueDefaultMaxConcurrentOperationCount = -1
 };
 
+GS_EXPORT_CLASS
 @interface NSOperationQueue : NSObject
 {
 #if	GS_NONFRAGILE

Headers/Foundation/NSOrderedSet.h

@@ -47,6 +47,7 @@ extern "C" {
 @class NSString;
 @class NSPredicate;
 
+GS_EXPORT_CLASS
 @interface GS_GENERIC_CLASS(NSOrderedSet, __covariant ElementT) : NSObject <NSCoding,
   NSCopying,
   NSMutableCopying,
@@ -159,6 +160,7 @@ extern "C" {
 @end
 
 // Mutable Ordered Set
+GS_EXPORT_CLASS
 @interface GS_GENERIC_CLASS(NSMutableOrderedSet, ElementT) : GS_GENERIC_CLASS(NSOrderedSet, ElementT)
 // Creating a Mutable Ordered Set
 + (instancetype)orderedSetWithCapacity: (NSUInteger)capacity;

Headers/Foundation/NSOrthography.h

@@ -34,7 +34,8 @@ extern "C" {
 #endif
 
 @class NSDictionary, NSString, NSArray;
-  
+
+GS_EXPORT_CLASS
 @interface NSOrthography : NSObject <NSCopying, NSCoding>
 {
   NSDictionary *_languageMap;

Headers/Foundation/NSPersonNameComponents.h

@@ -31,6 +31,7 @@
 
 @class NSString;
 
+GS_EXPORT_CLASS
 @interface NSPersonNameComponents : NSObject <NSCopying, NSCoding>
 {
 @private

Headers/Foundation/NSPersonNameComponentsFormatter.h

@@ -47,6 +47,7 @@ typedef NSUInteger NSPersonNameComponentsFormatterOptions;
 
 @class NSString;
 
+GS_EXPORT_CLASS
 @interface NSPersonNameComponentsFormatter : NSFormatter
 {
   @private

Headers/Foundation/NSPointerArray.h

@@ -42,7 +42,7 @@ extern "C" {
  * The count can also be set causing the array to shrink (discarding items)
  * or grow (adding nil/zero items).
  */
-
+GS_EXPORT_CLASS
 @interface NSPointerArray : NSObject <NSCopying, NSCoding>
 
 /** Allocate an instance, initialise using initWithOptions: and

Headers/Foundation/NSPointerFunctions.h

@@ -102,6 +102,7 @@ enum {
  */
 typedef	NSUInteger NSPointerFunctionsOptions;
 
+GS_EXPORT_CLASS
 @interface NSPointerFunctions : NSObject <NSCopying>
 
 + (id) pointerFunctionsWithOptions: (NSPointerFunctionsOptions)options;

Headers/Foundation/NSPort.h

@@ -33,7 +33,7 @@
 #import	<Foundation/NSObject.h>
 #import	<Foundation/NSMapTable.h>
 
-#if	defined(__MINGW__)
+#if	defined(_WIN32)
 #include	<winsock2.h>
 #include	<wininet.h>
 #else
@@ -72,6 +72,7 @@ extern "C" {
  * <p>This class also implements the functionality of the
  * <code><em>NSMachPort</em></code> class on OS X.</p>
  */
+GS_EXPORT_CLASS
 @interface NSPort : NSObject <NSCoding, NSCopying>
 {
 #if	GS_EXPOSE(NSPort)
@@ -197,6 +198,7 @@ typedef SOCKET NSSocketNativeHandle;
  *
  *  <p>Note that this class is incompatible with the latest OS X version.</p>
  */
+GS_EXPORT_CLASS
 @interface NSSocketPort : NSPort
 {
 #if	GS_EXPOSE(NSSocketPort)
@@ -206,7 +208,7 @@ typedef SOCKET NSSocketNativeHandle;
   uint16_t		portNum;	/* TCP port in host byte order.	*/
   SOCKET		listener;
   NSMapTable		*handles;	/* Handles indexed by socket.	*/
-#if	defined(__MINGW__)
+#if	defined(_WIN32)
   WSAEVENT              eventListener;
   NSMapTable            *events;
 #endif
@@ -279,6 +281,7 @@ typedef SOCKET NSSocketNativeHandle;
  *  which can be used for interthread/interprocess communications
  *  on the same host, but not between different hosts.
  */
+GS_EXPORT_CLASS
 @interface NSMessagePort : NSPort
 {
 #if	GS_EXPOSE(NSMessagePort)

Headers/Foundation/NSPortCoder.h

@@ -48,6 +48,7 @@ extern "C" {
 //FIXME: the above is what Apple's docs say, but looking at the code the
 // NSConnection is actually created by this class rather than the other way
 // around, so maybe the docs should be changed..
+GS_EXPORT_CLASS
 @interface NSPortCoder : NSCoder
 {
 #if	GS_EXPOSE(NSPortCoder)

Headers/Foundation/NSPortNameServer.h

@@ -44,6 +44,7 @@ extern "C" {
 
 @class	NSPort, NSString, NSMutableArray;
 
+GS_EXPORT_CLASS
 @interface	NSPortNameServer : NSObject
 + (id) systemDefaultPortNameServer;
 - (NSPort*) portForName: (NSString*)name;
@@ -54,6 +55,7 @@ extern "C" {
 - (BOOL) removePortForName: (NSString*)name;
 @end
 
+GS_EXPORT_CLASS
 @interface NSSocketPortNameServer : NSPortNameServer
 {
 #if	GS_EXPOSE(NSSocketPortNameServer)
@@ -79,6 +81,7 @@ extern "C" {
 @end
 
 
+GS_EXPORT_CLASS
 @interface NSMessagePortNameServer : NSPortNameServer
 + (id) sharedInstance;
 

Headers/Foundation/NSPredicate.h

@@ -42,6 +42,7 @@ extern "C" {
 DEFINE_BLOCK_TYPE(GSBlockPredicateBlock, BOOL, id, GS_GENERIC_CLASS(NSDictionary,NSString*,id)*);
 #endif
 
+GS_EXPORT_CLASS
 @interface NSPredicate : NSObject <NSCoding, NSCopying>
 
 + (NSPredicate *) predicateWithFormat: (NSString *)format, ...;

Headers/Foundation/NSProcessInfo.h

@@ -98,6 +98,7 @@ enum {
 #endif	/* OS_API_VERSION(GS_API_MACOSX,GS_API_LATEST) */
 
 
+GS_EXPORT_CLASS
 @interface NSProcessInfo: NSObject
 
 /**

Headers/Foundation/NSProgress.h

@@ -48,6 +48,7 @@ DEFINE_BLOCK_TYPE_NO_ARGS(NSProgressUnpublishingHandler, void);
 DEFINE_BLOCK_TYPE_NO_ARGS(GSProgressPendingUnitCountBlock, void); 
 DEFINE_BLOCK_TYPE_NO_ARGS(GSProgressResumingHandler, void); 
   
+GS_EXPORT_CLASS
 @interface NSProgress : NSObject
 {
 #if	GS_EXPOSE(NSProgress)

Headers/Foundation/NSPropertyList.h

@@ -229,6 +229,7 @@ typedef NSUInteger NSPropertyListFormat;
  *   </desc>
  * </deflist>
  */
+GS_EXPORT_CLASS
 @interface NSPropertyListSerialization : NSObject
 {
 }

Headers/Foundation/NSProtocolChecker.h

@@ -35,6 +35,7 @@ extern "C" {
 
 @class Protocol;
 
+GS_EXPORT_CLASS
 @interface NSProtocolChecker : NSProxy
 {
 #if	GS_EXPOSE(NSProtocolChecker)

Headers/Foundation/NSProxy.h

@@ -32,7 +32,8 @@
 extern "C" {
 #endif
 
-GS_ROOT_CLASS @interface NSProxy <NSObject>
+GS_EXPORT_CLASS GS_ROOT_CLASS
+@interface NSProxy <NSObject>
 {
 @public
     Class	isa;

Headers/Foundation/NSRegularExpression.h

@@ -86,6 +86,7 @@ DEFINE_BLOCK_TYPE(GSRegexBlock, void, NSTextCheckingResult*,
  * pattern, but it usually in the order of milliseconds. The preset 1500,
  * setting value to 0 disables the work limit.
  */
+GS_EXPORT_CLASS
 @interface NSRegularExpression : NSObject <NSCoding, NSCopying>
 {
 #if	GS_EXPOSE(NSRegularExpression)

Headers/Foundation/NSRunLoop.h

@@ -44,6 +44,7 @@ typedef NSString* NSRunLoopMode;
 GS_EXPORT NSRunLoopMode const NSDefaultRunLoopMode;
 GS_EXPORT NSRunLoopMode const NSRunLoopCommonModes;
 
+GS_EXPORT_CLASS
 @interface NSRunLoop : NSObject
 {
 #if	GS_EXPOSE(NSRunLoop)
@@ -127,7 +128,7 @@ GS_EXPORT NSRunLoopMode const NSRunLoopCommonModes;
  * run loop.
  */
 typedef	enum {
-#ifdef __MINGW__
+#ifdef _WIN32
     ET_HANDLE,	/* Watch for an I/O event on a handle.		*/
     ET_RPORT,	/* Watch for message arriving on port.		*/
     ET_WINMSG,	/* Watch for a message on a window handle.	*/

Headers/Foundation/NSScanner.h

@@ -37,6 +37,7 @@ extern "C" {
 /*
  * NSScanner class
  */
+GS_EXPORT_CLASS
 @interface NSScanner : NSObject <NSCopying>
 {
 #if	GS_EXPOSE(NSScanner)

Headers/Foundation/NSScriptClassDescription.h

@@ -34,6 +34,7 @@ extern "C" {
 
 #if OS_API_VERSION(MAC_OS_X_VERSION_10_0, GS_API_LATEST)
 
+GS_EXPORT_CLASS
 @interface NSScriptClassDescription : NSClassDescription
 
 @end

Headers/Foundation/NSScriptCoercionHandler.h

@@ -34,6 +34,7 @@ extern "C" {
 
 #if OS_API_VERSION(MAC_OS_X_VERSION_10_0, GS_API_LATEST)
 
+GS_EXPORT_CLASS
 @interface NSScriptCoercionHandler : NSObject
 
 @end

Headers/Foundation/NSScriptCommand.h

@@ -34,6 +34,7 @@ extern "C" {
 
 #if OS_API_VERSION(MAC_OS_X_VERSION_10_0, GS_API_LATEST)
 
+GS_EXPORT_CLASS
 @interface NSScriptCommand : NSObject
 
 @end

Headers/Foundation/NSScriptCommandDescription.h

@@ -34,6 +34,7 @@ extern "C" {
 
 #if OS_API_VERSION(MAC_OS_X_VERSION_10_0, GS_API_LATEST)
 
+GS_EXPORT_CLASS
 @interface NSScriptCommandDescription : NSObject
 
 @end

Headers/Foundation/NSScriptExecutionContext.h

@@ -34,6 +34,7 @@ extern "C" {
 
 #if OS_API_VERSION(MAC_OS_X_VERSION_10_0, GS_API_LATEST)
 
+GS_EXPORT_CLASS
 @interface NSScriptExecutionContext : NSObject
 
 @end

Headers/Foundation/NSScriptKeyValueCoding.h

@@ -34,6 +34,7 @@ extern "C" {
 
 #if OS_API_VERSION(MAC_OS_X_VERSION_10_0, GS_API_LATEST)
 
+GS_EXPORT_CLASS
 @interface NSScriptKeyValueCoding : NSObject
 
 @end

Headers/Foundation/NSScriptObjectSpecifiers.h

@@ -34,6 +34,7 @@ extern "C" {
 
 #if OS_API_VERSION(MAC_OS_X_VERSION_10_0, GS_API_LATEST)
 
+GS_EXPORT_CLASS
 @interface NSScriptObjectSpecifiers : NSObject
 
 @end

Headers/Foundation/NSScriptStandardSuiteCommands.h

@@ -34,6 +34,7 @@ extern "C" {
 
 #if OS_API_VERSION(MAC_OS_X_VERSION_10_0, GS_API_LATEST)
 
+GS_EXPORT_CLASS
 @interface NSScriptStandardSuiteCommands : NSObject
 
 @end

Headers/Foundation/NSScriptSuiteRegistry.h

@@ -34,6 +34,7 @@ extern "C" {
 
 #if OS_API_VERSION(MAC_OS_X_VERSION_10_0, GS_API_LATEST)
 
+GS_EXPORT_CLASS
 @interface NSScriptSuiteRegistry : NSObject
 
 @end

Headers/Foundation/NSSerialization.h

@@ -70,6 +70,7 @@ extern "C" {
  *  representation of a property list (NSArray or NSDictionary plus limited
  *  contents).</p>
  */
+GS_EXPORT_CLASS
 @interface NSSerializer: NSObject
 
 /**
@@ -129,6 +130,7 @@ extern "C" {
  *  property list (NSArray or NSDictionary plus limited contents) from a
  *  byte-array (actually string) representation.
  */
+GS_EXPORT_CLASS
 @interface NSDeserializer: NSObject
 
 /**