Kim B. Heino writes:

When installing a new package with dpkg dependencies are checked 
correctly. But when I try to update an existing package, the 
dependencies are checked against the old package, not against new 
package. Thus the new package can break dependencies.

1 files changed, 3 insertions, 5 deletions

diff --git a/archival/dpkg.c b/archival/dpkg.c
index 9f7818ccf..ebdf6c68a 100644
--- a/archival/dpkg.c
+++ b/archival/dpkg.c
@@ -643,11 +643,9 @@ static unsigned fill_package_struct(char *control_buffer)
                 return -1;
         }
         num = search_package_hashtable(new_node->name, new_node->version, VER_EQUAL);
-        if (package_hashtable[num] == NULL) {
-                package_hashtable[num] = new_node;
-        } else {
-                free_package(new_node);
-        }
+        if (package_hashtable[num] != NULL)
+                free_package(package_hashtable[num]);
+        package_hashtable[num] = new_node;
         return num;
 }