Remove Kerberos 4 support

-- remove references to (case insensitive) krb4, os_v4
-- cmulocal/kerberos_v5.m4: remove unused AC_DEFINE HAVE_KRB5

Makefile.am

@@ -1453,7 +1453,6 @@ lib_libcyrus_la_SOURCES = \
     lib/acl.c \
     lib/acl_afs.c \
     lib/auth.c \
-    lib/auth_krb.c \
     lib/auth_krb5.c \
     lib/auth_mboxgroups.c \
     lib/auth_pts.c \
@@ -1614,8 +1613,7 @@ dist_man3_MANS = \
 
 dist_man5_MANS = \
     man/cyrus.conf.5 \
-    man/imapd.conf.5 \
-    man/krb.equiv.5
+    man/imapd.conf.5
 
 dist_man8_MANS = \
     man/arbitron.8 \

changes/next/remove_krb4

@@ -0,0 +1,8 @@
+Description:
+
+Remove Kerberos 4 support
+
+Config changes:
+
+In imapd.conf srvtab is not valid anymore.
+./configure does not accept --enable-krb5afspts , ptclient/afskrb.c works now only with KRB5.

cmulocal/README.andrew

@@ -64,8 +64,8 @@ CMU_SASL
 
   Provides --with-sasldir.
 
-CMU_KRB4
-  This attempts to find Kerberos 4 libraries and set up CFLAGS and LIBS
+CMU_KRB5
+  This attempts to find Kerberos 5 libraries and set up CFLAGS and LIBS
   appropriately. It also updates and substitutes RPATH for shared library
   stuff.