--- portage.py.orig	2004-07-09 19:24:11.000000000 +0200
+++ portage.py	2004-07-09 19:35:14.000000000 +0200
@@ -1700,6 +1700,9 @@
                 else:
                                 filedict[myfile].append(myuri)
         for myfile in filedict.keys():
+                writemsg(">>> Locking "+myfile+"...");
+                mylock=lockfile(mysettings["BUILD_PREFIX"]+"/"+myfile+".lockfile",1);
+                writemsg("done.\n");
                 if listonly:
                         fetched=0
                         writemsg("\n")
@@ -1793,6 +1796,8 @@
                                         if not myret:
                                                 fetched=2
                                                 break
+                writemsg(">>> Releasing lock.\n");
+                unlockfile(mylock);
                 if (fetched!=2) and not listonly:
                         writemsg("!!! Couldn't download "+str(myfile)+". Aborting.\n")
                         return 0