Index: apt-0.7.3/configure.in
===================================================================
--- apt-0.7.3.orig/configure.in	2007-07-01 10:38:45.000000000 +0000
+++ apt-0.7.3/configure.in	2007-08-21 13:39:26.000000000 +0000
@@ -67,8 +67,20 @@
       [AC_DEFINE(HAVE_BDB)
        BDBLIB="-ldb"
        AC_MSG_RESULT(yes)],
-      [BDBLIB=""
-       AC_MSG_RESULT(no)]
+
+       LIBS="$LIBS -lpthread"
+       [AC_MSG_CHECKING(if we can link against BerkeleyDB with pthread)
+        AC_LINK_IFELSE(
+        [AC_LANG_PROGRAM(
+         [#include <db.h>],
+         [int r, s, t; db_version(&r, &s, &t);]
+        )],
+        [AC_DEFINE(HAVE_BDB)
+         BDBLIB="-ldb -lpthread"
+         AC_MSG_RESULT(yes)],
+        [BDBLIB=""
+         AC_MSG_RESULT(no)]
+      )]       
     )]
 )