removed ghc92-bin and add ghc90-bin to build-support

1 files changed, 10 insertions, 0 deletions

diff --git a/build-support/ghc90-bin/ghc.install b/build-support/ghc90-bin/ghc.install
new file mode 100644
index 00000000..68eed631
--- /dev/null
+++ b/build-support/ghc90-bin/ghc.install
@@ -0,0 +1,10 @@
+pre_upgrade() {
+  echo '==> Unregistering cabalized packages...'
+  [[ -d /usr/share/haskell-ghc-9.0 ]] && find /usr/share/haskell-ghc-9.0 -maxdepth 2 -name 'unregister.sh' -exec {} \;
+  echo '==> Done.'
+}
+
+post_upgrade() {
+  echo '==> All cabalized packages need to be reinstalled now.'
+  echo '==> See /usr/share/haskell-ghc-9.0/ and ghc-pkg-9.0 list --user for a tentative list of affected packages.'
+}