@@ -14,11 +14,10 @@
  * file.
  */
 
 #include "config.h"
 
-#include <stdlib.h>
 #include <string.h>
 
 #ifndef _WIN32
 # include <unistd.h>
 # include <signal.h>
@@ -436,22 +435,20 @@
 - (int)fileDescriptorForReading
 {
 #ifndef _WIN32
 	return _readPipe[0];
 #else
-	[self doesNotRecognizeSelector: _cmd];
-	abort();
+	OF_UNRECOGNIZED_SELECTOR
 #endif
 }
 
 - (int)fileDescriptorForWriting
 {
 #ifndef _WIN32
 	return _writePipe[1];
 #else
-	[self doesNotRecognizeSelector: _cmd];
-	abort();
+	OF_UNRECOGNIZED_SELECTOR
 #endif
 }
 
 - (void)closeForWriting
 {