@@ -20,14 +20,10 @@
 #include "config.h"
 
 #include <errno.h>
 #include <string.h>
 
-#ifdef HAVE_FCNTL_H
-# include <fcntl.h>
-#endif
-
 #import "OFStreamSocket.h"
 
 #import "OFInitializationFailedException.h"
 #import "OFNotImplementedException.h"
 #import "OFNotOpenException.h"
@@ -126,83 +122,23 @@
 #endif
 
 	return (size_t)bytesWritten;
 }
 
+#ifdef OF_WINDOWS
 - (void)setBlocking: (bool)enable
 {
-#if defined(HAVE_FCNTL)
-	bool readImplemented = false, writeImplemented = false;
-
-	@try {
-		int readFlags;
-
-		readFlags = fcntl([self fileDescriptorForReading], F_GETFL);
-
-		readImplemented = true;
-
-		if (readFlags == -1)
-			@throw [OFSetOptionFailedException
-			    exceptionWithStream: self
-					  errNo: errno];
-
-		if (enable)
-			readFlags &= ~O_NONBLOCK;
-		else
-			readFlags |= O_NONBLOCK;
-
-		if (fcntl([self fileDescriptorForReading], F_SETFL,
-		    readFlags) == -1)
-			@throw [OFSetOptionFailedException
-			    exceptionWithStream: self
-					  errNo: errno];
-	} @catch (OFNotImplementedException *e) {
-	}
-
-	@try {
-		int writeFlags;
-
-		writeFlags = fcntl([self fileDescriptorForWriting], F_GETFL);
-
-		writeImplemented = true;
-
-		if (writeFlags == -1)
-			@throw [OFSetOptionFailedException
-			    exceptionWithStream: self
-					  errNo: errno];
-
-		if (enable)
-			writeFlags &= ~O_NONBLOCK;
-		else
-			writeFlags |= O_NONBLOCK;
-
-		if (fcntl([self fileDescriptorForWriting], F_SETFL,
-		    writeFlags) == -1)
-			@throw [OFSetOptionFailedException
-			    exceptionWithStream: self
-					  errNo: errno];
-	} @catch (OFNotImplementedException *e) {
-	}
-
-	if (!readImplemented && !writeImplemented)
-		@throw [OFNotImplementedException exceptionWithSelector: _cmd
-								 object: self];
-
-	_blocking = enable;
-#elif defined(OF_WINDOWS)
 	u_long v = enable;
 
 	if (ioctlsocket(_socket, FIONBIO, &v) == SOCKET_ERROR)
 		@throw [OFSetOptionFailedException
-		    exceptionWithStream: self
+		    exceptionWithObject: self
 				  errNo: of_socket_errno()];
 
 	_blocking = enable;
-#else
-	OF_UNRECOGNIZED_SELECTOR
-#endif
 }
+#endif
 
 - (int)fileDescriptorForReading
 {
 #ifndef OF_WINDOWS
 	return _socket;