diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,7 @@
+# 0.4.8 (2022-06-14)
+- Graph createGraph4: prepend spec name to any rpmspec stderr
+- Graph optimization: filter out Provides ending in (x86-64)
+
 # 0.4.7 (2022-05-31)
 - Graph rpmspecDynBuildRequires: generate .buildreqs.nosrc.rpm in a tmpdir
 
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -66,6 +66,8 @@
 4. Since version 0.4.6 there is some support now for packages using
 dynamic buildrequires (in Fedora: golang, python, ruby, and rust packages).
 
+5. Since version 0.4.8 %{_isa} suffixed Provides are filtered out for x86_64.
+
 ## Installation
 
 rpmbuild-order is packaged in Fedora Linux.
diff --git a/Setup.hs b/Setup.hs
deleted file mode 100644
--- a/Setup.hs
+++ /dev/null
@@ -1,2 +0,0 @@
-import Distribution.Simple
-main = defaultMain
diff --git a/TODO b/TODO
--- a/TODO
+++ b/TODO
@@ -7,3 +7,5 @@
 - handle duplicate packages?
 - (r)deps: optimize using actual deps
 - option to somehow display subpackage deps for cycles
+
+- runtime order system packages (using rpmquery)
diff --git a/rpmbuild-order.cabal b/rpmbuild-order.cabal
--- a/rpmbuild-order.cabal
+++ b/rpmbuild-order.cabal
@@ -1,5 +1,5 @@
 Name:             rpmbuild-order
-Version:          0.4.7
+Version:          0.4.8
 License:          BSD3
 License-File:     LICENSE
 Author:           Jens Petersen <petersen@redhat.com>,
@@ -73,7 +73,7 @@
                  case-insensitive,
                  directory,
                  extra >= 1.6.4,
-                 filepath >= 1.4.2,
+                 filepath,
                  fgl >= 5.5.4,
                  graphviz,
                  simple-cmd >= 0.2.3
diff --git a/src/Distribution/RPM/Build/Graph.hs b/src/Distribution/RPM/Build/Graph.hs
--- a/src/Distribution/RPM/Build/Graph.hs
+++ b/src/Distribution/RPM/Build/Graph.hs
@@ -128,6 +128,8 @@
 createGraph1 = createGraph2 []
 
 -- | Alias for createGraph1
+--
+-- deprecated
 createGraph' :: Bool -- ^ verbose
              -> Bool -- ^ lenient (skip rpmspec failures)
              -> Bool -- ^ reverse dependency graph
@@ -255,11 +257,13 @@
             case mprovbrs of
               Nothing -> return Nothing
               Just (provs,brs) -> do
+                -- FIXME do not hardcode arch
+                let provs' = filter (not . ("(x86-64)" `isSuffixOf`)) provs
                 when verbose $ do
-                  warning $ show $ sort provs
+                  warning $ show $ sort provs'
                   warning $ show $ mapMaybe simplifyDep $ sort brs
                 return $ Just (path,
-                               nub provs, -- FIXME filter 'name(arch)'
+                               nub provs',
                                nub (mapMaybe simplifyDep brs) \\ ignoredBRs)
       where
         -- (dir,specfile)
@@ -389,7 +393,7 @@
     rpmspecParse :: FilePath -> IO (Maybe String)
     rpmspecParse spec = do
       (ok, out, err) <- cmdFull "rpmspec" (["-P", "--define", "ghc_version any"] ++ rpmopts ++ [spec]) ""
-      unless (null err) $ warning err
+      unless (null err) $ warning $ spec +-+ err
       if ok
         then return $ Just out
         else if lenient then return Nothing else exitFailure
@@ -497,3 +501,9 @@
     let g = G.emap (const ("" :: String)) graph
     runGraphvizCanvas' (setDirectedness graphToDot quickParams g) Xlib
     else error' "please install graphviz first"
+
+#if !MIN_VERSION_filepath(1,4,2)
+isExtensionOf :: String -> FilePath -> Bool
+isExtensionOf ext@('.':_) = isSuffixOf ext . takeExtensions
+isExtensionOf ext         = isSuffixOf ('.':ext) . takeExtensions
+#endif
diff --git a/src/Main.hs b/src/Main.hs
--- a/src/Main.hs
+++ b/src/Main.hs
@@ -18,9 +18,6 @@
 import Data.List (intercalate)
 import Data.List.Extra (dropSuffix)
 
-#if !MIN_VERSION_simple_cmd_args(0,1,4)
-import Options.Applicative (str)
-#endif
 import SimpleCmdArgs
 import System.Directory (doesDirectoryExist,
 #if MIN_VERSION_directory(1,2,5)