1 files changed, 1 insertions, 0 deletions
diff --git a/lexer.l b/lexer.l
index 4ec72b7..252f5b7 100644
--- a/lexer.l
+++ b/lexer.l
@@ -24,6 +24,7 @@
 #include "parser_yacc.h"
 
 int lexerget_lineno(void);
+static void yyunput(int, char*) __attribute__((unused));
 extern const char *parser_input_buffer;
 
 #define YY_INPUT(buf,result,max_size) { \