X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/2e768e3cc0ce768373d3320eca4cdd08b8cf646a..a2806483a53fcdb62ca8e2bec4f4e023355f4470:/h/mf.h?ds=inline

diff --git a/h/mf.h b/h/mf.h
index f53ed074..585a83a4 100644
--- a/h/mf.h
+++ b/h/mf.h
@@ -70,9 +70,9 @@ struct adrx {
 /*
  * prototypes
  */
-int isfrom(char *);
-int lequal (char *, char *);
+int isfrom(const char *);
+int lequal (const char *, const char *);
 int mfgets (FILE *, char **);
-char *legal_person (char *);
-struct adrx *getadrx (char *);
+char *legal_person (const char *);
+struct adrx *getadrx (const char *);