1 files changed, 10 insertions, 0 deletions
diff --git a/testing/ghc/ghc.install b/testing/ghc/ghc.install
new file mode 100644
index 000000000..c0200e4a6
--- /dev/null
+++ b/testing/ghc/ghc.install
@@ -0,0 +1,10 @@
+pre_upgrade() {
+  echo '==> Unregistering cabalized packages...'
+  [[ -d /usr/share/haskell ]] && find /usr/share/haskell -maxdepth 2 -name 'unregister.sh' -exec {} \;
+  echo '==> Done.'
+}
+
+post_upgrade() {
+  echo '==> All cabalized packages need to be reinstalled now.'
+  echo '==> See /usr/share/haskell/ and ghc-pkg list --user for a tentative list of affected packages.'
+}