--- avrdude-5.1/lexer.c	2006-01-23 22:46:01.000000000 +0100
+++ avrdude-5.1-patched/lexer.c	2006-01-24 22:11:30.000000000 +0100
@@ -7,8 +7,6 @@
 
 #if defined(__FreeBSD__)
 #include <sys/cdefs.h>
-#else
-#define __unused
 #endif
 
 #define FLEX_SCANNER
@@ -247,7 +245,7 @@
 YY_BUFFER_STATE yy_scan_bytes YY_PROTO(( yyconst char *bytes, int len ));
 
 static void *yy_flex_alloc YY_PROTO(( yy_size_t ));
-static void *yy_flex_realloc YY_PROTO(( void *, yy_size_t )) __unused;
+static void *yy_flex_realloc YY_PROTO(( void *, yy_size_t ));
 static void yy_flex_free YY_PROTO(( void * ));
 
 #define yy_new_buffer yy_create_buffer