diff --git a/buddy/ChangeLog b/buddy/ChangeLog
index b45674bc0..b13467e9d 100644
--- a/buddy/ChangeLog
+++ b/buddy/ChangeLog
@@ -1,3 +1,12 @@
+2010-01-22  Alexandre Duret-Lutz  <adl@lrde.epita.fr>
+
+	Get rid of some "deprecated conversion from string constant to
+	`char*'" warnings.
+
+	* examples/bddcalc/parser_.h (yyerror): Declare the format
+	as a "const char*".
+	* examples/bddcalc/parser.yxx (yyerror): Likewise.
+
 2010-01-21  Alexandre Duret-Lutz  <adl@lrde.epita.fr>
 
 	* src/bddio.c (bdd_load): Check the return value of fscanf() to
diff --git a/buddy/examples/bddcalc/parser.yxx b/buddy/examples/bddcalc/parser.yxx
index 082d6b007..acbafeda3 100644
--- a/buddy/examples/bddcalc/parser.yxx
+++ b/buddy/examples/bddcalc/parser.yxx
@@ -247,7 +247,7 @@ int main(int ac, char **av)
 }
 
 
-void yyerror(char *fmt, ...)
+void yyerror(const char *fmt, ...)
 {
    va_list argp;
    va_start(argp,fmt);
diff --git a/buddy/examples/bddcalc/parser_.h b/buddy/examples/bddcalc/parser_.h
index 7b59b0067..568d7c5e6 100644
--- a/buddy/examples/bddcalc/parser_.h
+++ b/buddy/examples/bddcalc/parser_.h
@@ -27,14 +27,14 @@ struct token         /* BISON token data */
 #define yywrap() (1)
 
 extern YYSTYPE yylval;            /* Declare for flex user */
-extern void yyerror(char *,...);  /* Declare for flex and bison */
+extern void yyerror(const char *,...);  /* Declare for flex and bison */
 extern FILE *yyin;
 extern int yylex(void);           /* Declare for bison */
 extern int yyparse(void);         /* Declare for bison user */
 extern int linenum;               /* Declare for error handler */
 
    /* Use this instead of strdup() to avoid malloc() */
-inline char *sdup(const char *s) 
+inline char *sdup(const char *s)
 {
    return strcpy(new char[strlen(s)+1], s);
 }