diff -ur portage-2.1.2_pre3.old/bin/dispatch-conf portage-2.1.2_pre3/bin/dispatch-conf
--- portage-2.1.2_pre3.old/bin/dispatch-conf	2006-10-17 08:17:12.000000000 +0200
+++ portage-2.1.2_pre3/bin/dispatch-conf	2006-10-17 11:52:55.000000000 +0200
@@ -14,6 +14,7 @@
 
 from stat import *
 from random import *
+from output import *
 import atexit, commands, os, re, shutil, stat, string, sys
 sys.path = ["/usr/lib/portage/pym"]+sys.path
 
@@ -101,6 +102,12 @@
                     return False
 
 
+        # config file freezing support
+        frozenfiles = []
+        if self.options.has_key('frozen'):
+            frozenfiles = self.options['frozen'].split()
+
+
         #
         # Remove new configs identical to current
         #                  and
@@ -138,7 +145,10 @@
             same_wsc = same_wsc and self.options['replace-wscomments'] == 'yes'
             unmodified = unmodified and self.options['replace-unmodified'] == 'yes'
 
-            if same_file:
+            # keep unaltered or frozen files
+            if same_file or conf['current'] in frozenfiles:
+                if conf['current'] in frozenfiles:
+                    print "file is frozen;"
                 os.unlink (conf ['new'])
                 self.post_process(conf['current'])
                 if os.path.exists(mrgconf):
diff -ur portage-2.1.2_pre3.old/cnf/dispatch-conf.conf portage-2.1.2_pre3/cnf/dispatch-conf.conf
--- portage-2.1.2_pre3.old/cnf/dispatch-conf.conf	2006-10-17 08:17:12.000000000 +0200
+++ portage-2.1.2_pre3/cnf/dispatch-conf.conf	2006-10-17 11:16:20.000000000 +0200
@@ -34,3 +34,6 @@
 
 # Per-session log file of changes made to configuration files
 #log-file=/var/log/dispatch-conf.log
+
+# List of files that dispatch-conf will never touch
+#frozen = ""