From 43c46ce3583603bcc51a7a6df23342402cb3d3a6 Mon Sep 17 00:00:00 2001
From: Jens Petersen <petersen@redhat.com>
Date: Sat, 18 Feb 2017 00:35:18 +0900
Subject: [PATCH] fix ABI check for uninstalled package

(which may be redundant now)

ghc-xhtml is not built for bootstrap, so check was failing
---
 ghc.spec | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/ghc.spec b/ghc.spec
index 6e8a2d5..e4bba12 100644
--- a/ghc.spec
+++ b/ghc.spec
@@ -422,13 +422,17 @@ make test
 echo "Checking package ABI hashes:"
 for i in %{ghc_packages_list}; do
   old=$(ghc-pkg field $i id --simple-output)
-  new=$(/usr/lib/rpm/ghc-pkg-wrapper %{buildroot}%{ghclibdir} field $i id --simple-output)
-  if [ "$old" != "$new" ]; then
-    echo "ABI hash for $i changed!:" >&2
-    echo "  $old -> $new" >&2
-    ghc_abi_hash_change=yes
+  if [ -n "$old" ]; then
+    new=$(/usr/lib/rpm/ghc-pkg-wrapper %{buildroot}%{ghclibdir} field $i id --simple-output)
+    if [ "$old" != "$new" ]; then
+      echo "ABI hash for $i changed!:" >&2
+      echo "  $old -> $new" >&2
+      ghc_abi_hash_change=yes
+    else
+      echo "($old unchanged)"
+    fi
   else
-    echo "($old unchanged)"
+    echo "($i not installed)"
   fi
 done
 if [ "$ghc_abi_hash_change" = "yes" ]; then