diff --git a/NEWS b/NEWS
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,7 @@
+* 0.8.5 (2013-09-28)
+- fix repoquery when a package update exists for C lib
+- make cblrpm-diff quieter
+
 * 0.8.4 (2013-09-28)
 - use repoquery to determine extra C library dependencies
 - quote "pkgconfig(foo)" for rpm query and yum install
@@ -5,7 +9,7 @@
 - exclude hsc2hs from build tool deps
 - devel provides ghc-<pkg>-static
 - drop release from initial changelog entry for packager to add an entry
-- do not try to fetch tarball when in a darcs or git source dir
+- do not try to fetch tarball for a darcs or git source dir
 
 * 0.8.3 (2013-07-12)
 - only try to install missing dependencies
diff --git a/cabal-rpm.cabal b/cabal-rpm.cabal
--- a/cabal-rpm.cabal
+++ b/cabal-rpm.cabal
@@ -1,11 +1,13 @@
 Name:                cabal-rpm
-Version:             0.8.4
+Version:             0.8.5
 Synopsis:            RPM package creator for Haskell Cabal-based packages
 Description:
     This package generates RPM packages from Haskell Cabal packages.
     .
     Recent changes:
     .
+    * 0.8.5: fix repoquery when a package update exists for C lib; make cblrpm-diff quieter
+    .
     * 0.8.4: use repoquery for C deps, pkgconfig quoting, devel provides static
     .
     * 0.8.3: only install missing dependencies, word-wrap generic descriptions
@@ -16,7 +18,7 @@
     .
     * 0.8.0: new simpler revised Fedora packaging; check external commands available
     .
-    See <https://github.com/juhp/cabal-rpm/blob/master/NEWS> for more details and history.
+    See <https://github.com/juhp/cabal-rpm/blob/master/NEWS> for more history and details.
 Homepage:            https://github.com/juhp/cabal-rpm
 Bug-reports:         https://github.com/juhp/cabal-rpm/issues
 License:             GPL-3
diff --git a/cblrpm-diff b/cblrpm-diff
--- a/cblrpm-diff
+++ b/cblrpm-diff
@@ -39,7 +39,7 @@
 
 cd $WORKDIR
 
-if ! cblrpm $FORCE_LIB spec ../$FILE; then
+if ! cblrpm -v0 $FORCE_LIB spec ../$FILE; then
     cd ..
     rm -r $WORKDIR
     exit 1
@@ -47,7 +47,7 @@
 
 SPECFILE=$(ls *.spec)
 
-cd -
+cd ..
 
 if [ ! -r "$SPECFILE" ]; then
   echo No $SPECFILE file found for $FILE
diff --git a/src/Commands/Spec.hs b/src/Commands/Spec.hs
--- a/src/Commands/Spec.hs
+++ b/src/Commands/Spec.hs
@@ -151,7 +151,7 @@
         pkgcfgs = nub $ map depName $ concat (map pkgconfigDepends buildinfo)
         showPkgCfg p = "pkgconfig(" ++ p ++ ")"
 
-    clibs <- mapM (\ lib -> repoquery ["--qf=%{name}", "-qf", "/usr/lib/lib" ++ lib ++ ".so"]) $ concat (map extraLibs buildinfo)
+    clibs <- mapM repoqueryLib $ concat (map extraLibs buildinfo)
     when (not . null $ deps ++ tools ++ clibs ++ pkgcfgs) $ do
       put "# Begin cabal-rpm deps:"
       let pkgdeps = sort $ map showDep deps ++ tools ++ map (++ "%{?_isa}") clibs ++ map showPkgCfg pkgcfgs
@@ -313,8 +313,12 @@
 formatParagraphs :: [String] -> [String]
 formatParagraphs = map (wordwrap 79) . paragraphs
 
-repoquery :: [String] -> IO String
-repoquery args = do
-  out <- tryReadProcess "repoquery" args
-  -- repoquery ends with a newline
-  return $ init out
+repoqueryLib :: String -> IO String
+repoqueryLib lib = do
+  let lib_path = "/usr/lib/lib" ++ lib ++ ".so"
+  out <- tryReadProcess "repoquery" ["--qf=%{name}", "-qf", lib_path]
+  let pkgs = nub $ words out
+  case pkgs of
+    [pkg] -> return pkg
+    [] -> error $ "Could not resolve package that provides lib" ++ lib_path
+    _ -> error $ "More than one package seems to provide lib" ++ lib_path ++ ": " ++ (show pkgs)
diff --git a/src/Main.hs b/src/Main.hs
--- a/src/Main.hs
+++ b/src/Main.hs
@@ -19,10 +19,12 @@
 import Setup (RpmFlags (..), parseArgs)
 import SysCmd (tryReadProcess, trySystem)
 
-import Distribution.PackageDescription.Parse (readPackageDescription)
-import Distribution.Simple.Utils (defaultPackageDesc, findPackageDesc)
+import Control.Monad (unless)
 import Data.List (isSuffixOf)
 import Data.Maybe (isJust)
+import Distribution.PackageDescription.Parse (readPackageDescription)
+import Distribution.Simple.Utils (defaultPackageDesc, findPackageDesc)
+import Distribution.Verbosity (Verbosity, silent)
 import System.Directory (doesDirectoryExist, doesFileExist, getCurrentDirectory,
                          removeDirectoryRecursive, setCurrentDirectory)
 import System.Environment (getArgs)
@@ -32,14 +34,13 @@
 
 main :: IO ()
 main = do (opts, args) <- getArgs >>= parseArgs
-          let verbosity = rpmVerbosity opts
+          let verbose = rpmVerbosity opts
               (cmd:args') = args
           (cabalPath, mtmp) <- if null args'
                                then do
-                                 pth <- defaultPackageDesc verbosity
+                                 pth <- defaultPackageDesc verbose
                                  return (pth, Nothing)
-                               else findCabalFile $ head args'
-          let verbose = rpmVerbosity opts
+                               else findCabalFile verbose $ head args'
           genPkgDesc <- readPackageDescription verbose cabalPath
           case cmd of
                "spec" ->  createSpecFile cabalPath genPkgDesc opts
@@ -65,12 +66,12 @@
   --           internalPackageSet = PackageIndex.fromList [internalPackage]
 
 -- returns path to .cabal file and possibly tmpdir to be removed
-findCabalFile :: FilePath -> IO (FilePath, Maybe FilePath)
-findCabalFile path = do
+findCabalFile :: Verbosity -> FilePath -> IO (FilePath, Maybe FilePath)
+findCabalFile vb path = do
   isdir <- doesDirectoryExist path
   if isdir
     then do
-      putStrLn $ "Using " ++ path ++ "/"
+      unless (vb == silent) $ putStrLn $ "Using " ++ path ++ "/"
       file <- findPackageDesc path
       return (file, Nothing)
     else do