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diff --git a/ghc/lib/haskell-1.3/LibPosixErr.lhs b/ghc/lib/haskell-1.3/LibPosixErr.lhs
new file mode 100644
index 0000000000..bcc7137b44
--- /dev/null
+++ b/ghc/lib/haskell-1.3/LibPosixErr.lhs
@@ -0,0 +1,164 @@
+%
+% (c) The GRASP/AQUA Project, Glasgow University, 1995
+%
+\section[LibPosixErr]{Haskell 1.3 POSIX Error Codes}
+
+\begin{code}
+module LibPosixErr
+where
+
+import PreludeGlaST
+
+type ErrorCode = Int
+
+getErrorCode :: IO ErrorCode
+getErrorCode =
+    _casm_ ``%r = errno;''			    `thenPrimIO` \ errno ->
+    return errno
+
+setErrorCode :: ErrorCode -> IO ()
+setErrorCode errno =
+    _casm_ ``errno = %0;'' errno		    `thenPrimIO` \ () ->
+    return ()
+
+noError :: ErrorCode
+noError = 0
+
+argumentListTooLong, e2BIG :: ErrorCode
+argumentListTooLong = ``E2BIG''
+e2BIG = ``E2BIG''
+
+badChannel, eBADF :: ErrorCode
+badChannel = ``EBADF''
+eBADF = ``EBADF''
+
+brokenPipe, ePIPE :: ErrorCode
+brokenPipe = ``EPIPE''
+ePIPE = ``EPIPE''
+
+directoryNotEmpty, eNOTEMPTY :: ErrorCode
+directoryNotEmpty = ``ENOTEMPTY''
+eNOTEMPTY = ``ENOTEMPTY''
+
+execFormatError, eNOEXEC :: ErrorCode
+execFormatError = ``ENOEXEC''
+eNOEXEC = ``ENOEXEC''
+
+fileAlreadyExists, eEXIST :: ErrorCode
+fileAlreadyExists = ``EEXIST''
+eEXIST = ``EEXIST''
+
+fileTooLarge, eFBIG :: ErrorCode
+fileTooLarge = ``EFBIG''
+eFBIG = ``EFBIG''
+
+filenameTooLong, eNAMETOOLONG :: ErrorCode
+filenameTooLong = ``ENAMETOOLONG''
+eNAMETOOLONG = ``ENAMETOOLONG''
+
+improperLink, eXDEV :: ErrorCode
+improperLink = ``EXDEV''
+eXDEV = ``EXDEV''
+
+inappropriateIOControlOperation, eNOTTY :: ErrorCode
+inappropriateIOControlOperation = ``ENOTTY''
+eNOTTY = ``ENOTTY''
+
+inputOutputError, eIO :: ErrorCode
+inputOutputError = ``EIO''
+eIO = ``EIO''
+
+interruptedOperation, eINTR :: ErrorCode
+interruptedOperation = ``EINTR''
+eINTR = ``EINTR''
+
+invalidArgument, eINVAL :: ErrorCode
+invalidArgument = ``EINVAL''
+eINVAL = ``EINVAL''
+
+invalidSeek, eSPIPE :: ErrorCode
+invalidSeek = ``ESPIPE''
+eSPIPE = ``ESPIPE''
+
+isADirectory, eISDIR :: ErrorCode
+isADirectory = ``EISDIR''
+eISDIR = ``EISDIR''
+
+noChildProcess, eCHILD :: ErrorCode
+noChildProcess = ``ECHILD''
+eCHILD = ``ECHILD''
+
+noLocksAvailable, eNOLCK :: ErrorCode
+noLocksAvailable = ``ENOLCK''
+eNOLCK = ``ENOLCK''
+
+noSpaceLeftOnDevice, eNOSPC :: ErrorCode
+noSpaceLeftOnDevice = ``ENOSPC''
+eNOSPC = ``ENOSPC''
+
+noSuchOperationOnDevice, eNODEV :: ErrorCode
+noSuchOperationOnDevice = ``ENODEV''
+eNODEV = ``ENODEV''
+
+noSuchDeviceOrAddress, eNXIO :: ErrorCode
+noSuchDeviceOrAddress = ``ENXIO''
+eNXIO = ``ENXIO''
+
+noSuchFileOrDirectory, eNOENT :: ErrorCode
+noSuchFileOrDirectory = ``ENOENT''
+eNOENT = ``ENOENT''
+
+noSuchProcess, eSRCH :: ErrorCode
+noSuchProcess = ``ESRCH''
+eSRCH = ``ESRCH''
+
+notADirectory, eNOTDIR :: ErrorCode
+notADirectory = ``ENOTDIR''
+eNOTDIR = ``ENOTDIR''
+
+notEnoughMemory, eNOMEM :: ErrorCode
+notEnoughMemory = ``ENOMEM''
+eNOMEM = ``ENOMEM''
+
+operationNotImplemented, eNOSYS :: ErrorCode
+operationNotImplemented = ``ENOSYS''
+eNOSYS = ``ENOSYS''
+
+operationNotPermitted, ePERM :: ErrorCode
+operationNotPermitted = ``EPERM''
+ePERM = ``EPERM''
+
+permissionDenied, eACCES :: ErrorCode
+permissionDenied = ``EACCES''
+eACCES = ``EACCES''
+
+readOnlyFileSystem, eROFS :: ErrorCode
+readOnlyFileSystem = ``EROFS''
+eROFS = ``EROFS''
+
+resourceBusy, eBUSY :: ErrorCode
+resourceBusy = ``EBUSY''
+eBUSY = ``EBUSY''
+
+resourceDeadlockAvoided, eDEADLK :: ErrorCode
+resourceDeadlockAvoided = ``EDEADLK''
+eDEADLK = ``EDEADLK''
+
+resourceTemporarilyUnavailable, eAGAIN :: ErrorCode
+resourceTemporarilyUnavailable = ``EAGAIN''
+eAGAIN = ``EAGAIN''
+
+tooManyLinks, eMLINK :: ErrorCode
+tooManyLinks = ``EMLINK''
+eMLINK = ``EMLINK''
+
+tooManyOpenFiles, eMFILE :: ErrorCode
+tooManyOpenFiles = ``EMFILE''
+eMFILE = ``EMFILE''
+
+tooManyOpenFilesInSystem, eNFILE :: ErrorCode
+tooManyOpenFilesInSystem = ``ENFILE''
+eNFILE = ``ENFILE''
+
+\end{code}
+