--- gcc-4.2-20090325/include/libiberty.h	2007-02-09 20:29:21.000000000 +0500
+++ gcc-4.2-20090325/include/libiberty.h.new	2010-05-07 18:16:36.564293384 +0600
@@ -554,8 +554,10 @@
 /* Like sprintf but provides a pointer to malloc'd storage, which must
    be freed by the caller.  */
 
+#ifndef asprintf
 extern int asprintf (char **, const char *, ...) ATTRIBUTE_PRINTF_2;
 #endif
+#endif
 
 #if !HAVE_DECL_VASPRINTF
 /* Like vsprintf but provides a pointer to malloc'd storage, which