1 files changed, 4 insertions, 4 deletions

diff --git a/gnu/usr.bin/grep/kwset.h b/gnu/usr.bin/grep/kwset.h
index f812b2e51806..1724f68de11b 100644
--- a/gnu/usr.bin/grep/kwset.h
+++ b/gnu/usr.bin/grep/kwset.h
@@ -25,7 +25,7 @@
 struct kwsmatch
 {
   int index;			/* Index number of matching keyword. */
-  char *beg[1];			/* Begin pointer for each submatch. */
+  size_t offset[1];		/* Offset of each submatch. */
   size_t size[1];		/* Length of each submatch. */
 };
 
@@ -35,12 +35,12 @@ typedef ptr_t kwset_t;
    if enough memory cannot be obtained.  The argument if non-NULL
    specifies a table of character translations to be applied to all
    pattern and search text. */
-extern kwset_t kwsalloc PARAMS((char *));
+extern kwset_t kwsalloc PARAMS((char const *));
 
 /* Incrementally extend the keyword set to include the given string.
    Return NULL for success, or an error message.  Remember an index
    number for each keyword included in the set. */
-extern char *kwsincr PARAMS((kwset_t, char *, size_t));
+extern char *kwsincr PARAMS((kwset_t, char const *, size_t));
 
 /* When the keyword set has been completely built, prepare it for
    use.  Return NULL for success, or an error message. */
@@ -52,7 +52,7 @@ extern char *kwsprep PARAMS((kwset_t));
    the matching substring in the integer it points to.  Similarly,
    if foundindex is non-NULL, store the index of the particular
    keyword found therein. */
-extern char *kwsexec PARAMS((kwset_t, char *, size_t, struct kwsmatch *));
+extern size_t kwsexec PARAMS((kwset_t, char const *, size_t, struct kwsmatch *));
 
 /* Deallocate the given keyword set and all its associated storage. */
 extern void kwsfree PARAMS((kwset_t));