diff --git a/COPYING b/COPYING
deleted file mode 100644
--- a/COPYING
+++ /dev/null
@@ -1,340 +0,0 @@
-		    GNU GENERAL PUBLIC LICENSE
-		       Version 2, June 1991
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.
-	51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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diff --git a/Codec/Archive/Zip.hs b/Codec/Archive/Zip.hs
--- a/Codec/Archive/Zip.hs
+++ b/Codec/Archive/Zip.hs
@@ -3,7 +3,7 @@
 -- |
 -- Module      : Codec.Archive.Zip
 -- Copyright   : John MacFarlane
--- License     : GPL 2 (see LICENSE)
+-- License     : BSD3
 --
 -- Maintainer  : John MacFarlane < jgm at berkeley dot edu >
 -- Stability   : unstable
@@ -55,6 +55,10 @@
        ) where
 
 import System.Time ( toUTCTime, addToClockTime, CalendarTime (..), ClockTime (..), TimeDiff (..) )
+#if MIN_VERSION_directory(1,2,0)
+import Data.Time.Clock.POSIX ( utcTimeToPOSIXSeconds )
+#else
+#endif
 import Data.Bits ( shiftL, shiftR, (.&.) )
 import Data.Binary
 import Data.Binary.Get
@@ -199,7 +203,12 @@
   contents <- if isDir
                  then return B.empty
                  else B.readFile path
+#if MIN_VERSION_directory(1,2,0)
+  modEpochTime <- liftM (floor . utcTimeToPOSIXSeconds)
+                   $ getModificationTime path
+#else
   (TOD modEpochTime _) <- getModificationTime path
+#endif
   let entry = toEntry path' modEpochTime contents
   when (OptVerbose `elem` opts) $ do
     let compmethod = case eCompressionMethod entry of
diff --git a/Tests.hs b/Tests.hs
deleted file mode 100644
--- a/Tests.hs
+++ /dev/null
@@ -1,92 +0,0 @@
--- Test suite for Codec.Archive.Zip
--- runghc Test.hs
-
-import Codec.Archive.Zip
-import System.Directory
-import Test.HUnit.Base
-import Test.HUnit.Text
-import System.Time
-import System.Process
-import qualified Data.ByteString.Lazy as B
-import Control.Applicative
-
--- define equality for Archives so timestamps aren't distinguished if they
--- correspond to the same MSDOS datetime.
-instance Eq Archive where
-  (==) a1 a2 =  zSignature a1 == zSignature a2
-             && zComment a1 == zComment a2
-             && (all id $ zipWith (\x y -> x { eLastModified = eLastModified x `div` 2  } ==
-                                           y { eLastModified = eLastModified y `div` 2  }) (zEntries a1) (zEntries a2))
-
-main :: IO Counts
-main = do
-  createDirectory "test-temp"
-  counts <- runTestTT $ TestList [ 
-                                   testReadWriteArchive
-                                 , testReadExternalZip
-                                 , testFromToArchive
-                                 , testReadWriteEntry
-                                 , testAddFilesOptions
-                                 , testDeleteEntries
-                                 , testExtractFiles
-                                 ]
-  removeDirectoryRecursive "test-temp"
-  return counts
-
-testReadWriteArchive = TestCase $ do
-  archive <- addFilesToArchive [OptRecursive] emptyArchive ["LICENSE", "Codec"]
-  B.writeFile "test-temp/test1.zip" $ fromArchive archive
-  archive' <- toArchive <$> B.readFile "test-temp/test1.zip"
-  assertEqual "for writing and reading test1.zip" archive archive'
-  assertEqual "for writing and reading test1.zip" archive archive'
-
-testReadExternalZip = TestCase $ do
-  runCommand "/usr/bin/zip -q -9 test-temp/test4.zip zip-archive.cabal Codec/Archive/Zip.hs" >>= waitForProcess
-  archive <- toArchive <$> B.readFile "test-temp/test4.zip"
-  let files = filesInArchive archive
-  assertEqual "for results of filesInArchive" ["zip-archive.cabal", "Codec/Archive/Zip.hs"] files
-  cabalContents <- B.readFile "zip-archive.cabal"
-  case findEntryByPath "zip-archive.cabal" archive of 
-       Nothing  -> assertFailure "zip-archive.cabal not found in archive"
-       Just f   -> assertEqual "for contents of zip-archive.cabal in archive" cabalContents (fromEntry f)
-
-testFromToArchive = TestCase $ do
-  archive <- addFilesToArchive [OptRecursive] emptyArchive ["LICENSE", "Codec"]
-  assertEqual "for (toArchive $ fromArchive archive)" archive (toArchive $ fromArchive archive)
-
-testReadWriteEntry = TestCase $ do
-  entry <- readEntry [] "zip-archive.cabal"
-  setCurrentDirectory "test-temp"
-  writeEntry [] entry
-  setCurrentDirectory ".."
-  entry' <- readEntry [] "test-temp/zip-archive.cabal"
-  let entry'' = entry' { eRelativePath = eRelativePath entry, eLastModified = eLastModified entry }
-  assertEqual "for readEntry -> writeEntry -> readEntry" entry entry''
-
-testAddFilesOptions = TestCase $ do
-  archive1 <- addFilesToArchive [OptVerbose] emptyArchive ["LICENSE", "Codec"]
-  archive2 <- addFilesToArchive [OptRecursive, OptVerbose] archive1 ["LICENSE", "Codec"]
-  assertBool "for recursive and nonrecursive addFilesToArchive"
-     (length (filesInArchive archive1) < length (filesInArchive archive2))
-
-testDeleteEntries = TestCase $ do
-  archive1 <- addFilesToArchive [] emptyArchive ["LICENSE", "Codec/"] 
-  let archive2 = deleteEntryFromArchive "LICENSE" archive1
-  let archive3 = deleteEntryFromArchive "Codec/" archive2
-  assertEqual "for deleteFilesFromArchive" emptyArchive archive3
-
-testExtractFiles = TestCase $ do
-  createDirectory "test-temp/dir1"
-  createDirectory "test-temp/dir1/dir2"
-  let hiMsg = "hello there"
-  let helloMsg = "Hello there. This file is very long.  Longer than 31 characters."
-  writeFile "test-temp/dir1/hi" hiMsg
-  writeFile "test-temp/dir1/dir2/hello" helloMsg
-  archive <- addFilesToArchive [OptRecursive] emptyArchive ["test-temp/dir1"]
-  removeDirectoryRecursive "test-temp/dir1"
-  extractFilesFromArchive [OptVerbose] archive
-  hi <- readFile "test-temp/dir1/hi"
-  hello <- readFile "test-temp/dir1/dir2/hello"
-  assertEqual "contents of test-temp/dir1/hi" hiMsg hi
-  assertEqual "contents of test-temp/dir1/dir2/hello" helloMsg hello
-
diff --git a/Zip.hs b/Zip.hs
--- a/Zip.hs
+++ b/Zip.hs
@@ -1,7 +1,7 @@
 ------------------------------------------------------------------------
 -- Zip.hs
 -- Copyright (c) 2008 John MacFarlane
--- License     : GPL 2 (see LICENSE)
+-- License     : BSD3 (see LICENSE)
 --
 -- This is a demonstration of the use of the 'Codec.Archive.Zip' library.
 -- It duplicates some of the functionality of the 'zip' command-line
diff --git a/tests/test-zip-archive.hs b/tests/test-zip-archive.hs
new file mode 100644
--- /dev/null
+++ b/tests/test-zip-archive.hs
@@ -0,0 +1,104 @@
+{-# LANGUAGE CPP #-}
+-- Test suite for Codec.Archive.Zip
+-- runghc Test.hs
+
+import Codec.Archive.Zip
+import System.Directory
+import Test.HUnit.Base
+import Test.HUnit.Text
+#if MIN_VERSION_directory(1,2,0)
+import System.Time
+#endif
+import System.Process
+import qualified Data.ByteString.Lazy as B
+import Control.Applicative
+import System.Exit
+
+-- define equality for Archives so timestamps aren't distinguished if they
+-- correspond to the same MSDOS datetime.
+instance Eq Archive where
+  (==) a1 a2 =  zSignature a1 == zSignature a2
+             && zComment a1 == zComment a2
+             && (all id $ zipWith (\x y -> x { eLastModified = eLastModified x `div` 2  } ==
+                                           y { eLastModified = eLastModified y `div` 2  }) (zEntries a1) (zEntries a2))
+
+main :: IO Counts
+main = do
+  createDirectory "test-temp"
+  res   <- runTestTT $ TestList [ testReadWriteArchive
+                                , testReadExternalZip
+                                , testFromToArchive
+                                , testReadWriteEntry
+                                , testAddFilesOptions
+                                , testDeleteEntries
+                                , testExtractFiles
+                                ]
+  removeDirectoryRecursive "test-temp"
+  exitWith $ case errors res of
+                     0 -> ExitSuccess
+                     n -> ExitFailure n
+
+testReadWriteArchive :: Test
+testReadWriteArchive = TestCase $ do
+  archive <- addFilesToArchive [OptRecursive] emptyArchive ["LICENSE", "Codec"]
+  B.writeFile "test-temp/test1.zip" $ fromArchive archive
+  archive' <- toArchive <$> B.readFile "test-temp/test1.zip"
+  assertEqual "for writing and reading test1.zip" archive archive'
+  assertEqual "for writing and reading test1.zip" archive archive'
+
+testReadExternalZip :: Test
+testReadExternalZip = TestCase $ do
+  _ <- runCommand "/usr/bin/zip -q -9 test-temp/test4.zip zip-archive.cabal Codec/Archive/Zip.hs" >>= waitForProcess
+  archive <- toArchive <$> B.readFile "test-temp/test4.zip"
+  let files = filesInArchive archive
+  assertEqual "for results of filesInArchive" ["zip-archive.cabal", "Codec/Archive/Zip.hs"] files
+  cabalContents <- B.readFile "zip-archive.cabal"
+  case findEntryByPath "zip-archive.cabal" archive of 
+       Nothing  -> assertFailure "zip-archive.cabal not found in archive"
+       Just f   -> assertEqual "for contents of zip-archive.cabal in archive" cabalContents (fromEntry f)
+
+testFromToArchive :: Test
+testFromToArchive = TestCase $ do
+  archive <- addFilesToArchive [OptRecursive] emptyArchive ["LICENSE", "Codec"]
+  assertEqual "for (toArchive $ fromArchive archive)" archive (toArchive $ fromArchive archive)
+
+testReadWriteEntry :: Test
+testReadWriteEntry = TestCase $ do
+  entry <- readEntry [] "zip-archive.cabal"
+  setCurrentDirectory "test-temp"
+  writeEntry [] entry
+  setCurrentDirectory ".."
+  entry' <- readEntry [] "test-temp/zip-archive.cabal"
+  let entry'' = entry' { eRelativePath = eRelativePath entry, eLastModified = eLastModified entry }
+  assertEqual "for readEntry -> writeEntry -> readEntry" entry entry''
+
+testAddFilesOptions :: Test
+testAddFilesOptions = TestCase $ do
+  archive1 <- addFilesToArchive [OptVerbose] emptyArchive ["LICENSE", "Codec"]
+  archive2 <- addFilesToArchive [OptRecursive, OptVerbose] archive1 ["LICENSE", "Codec"]
+  assertBool "for recursive and nonrecursive addFilesToArchive"
+     (length (filesInArchive archive1) < length (filesInArchive archive2))
+
+testDeleteEntries :: Test
+testDeleteEntries = TestCase $ do
+  archive1 <- addFilesToArchive [] emptyArchive ["LICENSE", "Codec/"] 
+  let archive2 = deleteEntryFromArchive "LICENSE" archive1
+  let archive3 = deleteEntryFromArchive "Codec/" archive2
+  assertEqual "for deleteFilesFromArchive" emptyArchive archive3
+
+testExtractFiles :: Test
+testExtractFiles = TestCase $ do
+  createDirectory "test-temp/dir1"
+  createDirectory "test-temp/dir1/dir2"
+  let hiMsg = "hello there"
+  let helloMsg = "Hello there. This file is very long.  Longer than 31 characters."
+  writeFile "test-temp/dir1/hi" hiMsg
+  writeFile "test-temp/dir1/dir2/hello" helloMsg
+  archive <- addFilesToArchive [OptRecursive] emptyArchive ["test-temp/dir1"]
+  removeDirectoryRecursive "test-temp/dir1"
+  extractFilesFromArchive [OptVerbose] archive
+  hi <- readFile "test-temp/dir1/hi"
+  hello <- readFile "test-temp/dir1/dir2/hello"
+  assertEqual "contents of test-temp/dir1/hi" hiMsg hi
+  assertEqual "contents of test-temp/dir1/dir2/hello" helloMsg hello
+
diff --git a/zip-archive.cabal b/zip-archive.cabal
--- a/zip-archive.cabal
+++ b/zip-archive.cabal
@@ -1,6 +1,6 @@
 Name:                zip-archive
-Version:             0.1.1.8
-Cabal-version:       >= 1.2
+Version:             0.1.2.1
+Cabal-Version:       >= 1.10
 Build-type:          Simple
 Synopsis:            Library for creating and modifying zip archives.
 Description:         The zip-archive library provides functions for creating, modifying,
@@ -12,8 +12,11 @@
 Author:              John MacFarlane
 Maintainer:          jgm@berkeley.edu
 Build-Depends:       base
-Extra-Source-Files:  Tests.hs, COPYING
 
+Source-repository    head
+  type:              git
+  location:          git://github.com/jgm/zip-archive.git
+
 flag splitBase
   Description:       Choose the new, smaller, split-up base package.
   Default:           True
@@ -21,16 +24,17 @@
   Description:       Build the Zip executable.
   Default:           False
 
-Library 
+Library
   if flag(splitBase)
     Build-depends:   base >= 3 && < 5, pretty, containers
   else
     Build-depends:   base < 3
-  Build-depends:     binary, zlib, filepath, directory, bytestring >= 0.9.0, array, mtl, utf8-string >= 0.3.1, old-time, digest >= 0.0.0.1
+  Build-depends:     binary < 0.6, zlib, filepath, bytestring >= 0.9.0, array, mtl, utf8-string >= 0.3.1, old-time, digest >= 0.0.0.1, directory, time
   Exposed-modules:   Codec.Archive.Zip
+  Default-Language:  Haskell98
   Hs-Source-Dirs:    .
   Ghc-Options:       -Wall
-  Extensions:        CPP
+  Default-Extensions: CPP
   if os(windows)
     cpp-options:     -D_WINDOWS
   else
@@ -43,3 +47,14 @@
     Buildable:       False
   Main-is:           Zip.hs
   Ghc-Options:       -Wall
+  Default-Language:  Haskell98
+
+Test-Suite test-zip-archive
+  Type:           exitcode-stdio-1.0
+  Main-Is:        test-zip-archive.hs
+  Hs-Source-Dirs: tests
+  Build-Depends:  base >= 4.2 && < 5,
+                  directory, bytestring >= 0.9.0, process, time, old-time,
+                  HUnit, zip-archive
+  Default-Language:  Haskell98
+  Ghc-Options:    -Wall
