1 files changed, 6 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/applications/science/logic/leo2/default.upstream b/nixpkgs/pkgs/applications/science/logic/leo2/default.upstream
new file mode 100644
index 000000000000..52b8ed1cdaa2
--- /dev/null
+++ b/nixpkgs/pkgs/applications/science/logic/leo2/default.upstream
@@ -0,0 +1,6 @@
+url http://page.mi.fu-berlin.de/cbenzmueller/leo/download.html
+version_link '[.]tgz'
+version '.*_v([0-9.]+)[.][a-z0-9]+$' '\1'
+do_overwrite () {
+  do_overwrite_just_version
+}