fixes for hmac-*.c modules

[Simon Josefsson]

I forgot to include "memxor.h" for the memxor prototype; I have
installed this.

Index: lib/ChangeLog
===================================================================
RCS file: /cvsroot/gnulib/gnulib/lib/ChangeLog,v
retrieving revision 1.1021
diff -u -p -r1.1021 ChangeLog
--- lib/ChangeLog       18 Oct 2005 23:35:51 -0000      1.1021
+++ lib/ChangeLog       18 Oct 2005 23:36:33 -0000
@@ -1,5 +1,9 @@
 2005-10-19  Simon Josefsson  <address@hidden>
 
+       * hmac-md5.c, hmac-sha1.c: Include memxor.h.
+
+2005-10-19  Simon Josefsson  <address@hidden>
+
        * gc.h, gc-gnulib.c, gc-libgcrypt.c: Support MD4. 
 
 2005-10-18  Simon Josefsson  <address@hidden>
Index: lib/hmac-md5.c
===================================================================
RCS file: /cvsroot/gnulib/gnulib/lib/hmac-md5.c,v
retrieving revision 1.1
diff -u -p -r1.1 hmac-md5.c
--- lib/hmac-md5.c      6 Oct 2005 15:58:27 -0000       1.1
+++ lib/hmac-md5.c      18 Oct 2005 23:36:33 -0000
@@ -23,6 +23,7 @@
 
 #include "hmac.h"
 
+#include "memxor.h"
 #include "md5.h"
 
 #include <string.h>
Index: lib/hmac-sha1.c
===================================================================
RCS file: /cvsroot/gnulib/gnulib/lib/hmac-sha1.c,v
retrieving revision 1.1
diff -u -p -r1.1 hmac-sha1.c
--- lib/hmac-sha1.c     12 Oct 2005 01:33:44 -0000      1.1
+++ lib/hmac-sha1.c     18 Oct 2005 23:36:33 -0000
@@ -23,6 +23,7 @@
 
 #include "hmac.h"
 
+#include "memxor.h"
 #include "sha1.h"
 
 #include <string.h>