diff --git a/LIO.hs b/LIO.hs
--- a/LIO.hs
+++ b/LIO.hs
@@ -1,5 +1,5 @@
 {-# LANGUAGE CPP #-}
-#if defined(__GLASGOW_HASKELL__) && (__GLASGOW_HASKELL__ >= 702)
+#if __GLASGOW_HASKELL__ >= 702
 {-# LANGUAGE Safe #-}
 #endif
 
diff --git a/LIO/TCB.hs b/LIO/TCB.hs
--- a/LIO/TCB.hs
+++ b/LIO/TCB.hs
@@ -536,6 +536,7 @@
 
 -- | @Labeled@ is a type representing labeled data.  
 data Labeled l t = LabeledTCB l t
+  deriving (Typeable)
 
 -- | Returns label of a 'Labeled' type.
 labelOf :: Label l => Labeled l a -> l
diff --git a/cbits/HsTmp.c b/cbits/HsTmp.c
--- a/cbits/HsTmp.c
+++ b/cbits/HsTmp.c
@@ -1,19 +1,19 @@
 #include "HsTmp.h"
 
 #if HAVE_MKSTEMP
-int __hscore_mkstemp(char *filetemplate) {
+int __hstmp_mkstemp(char *filetemplate) {
     return (mkstemp(filetemplate));
 }
 #endif
 
 #if HAVE_MKSTEMPS
-int __hscore_mkstemps(char *filetemplate, int suffixlen) {
+int __hstmp_mkstemps(char *filetemplate, int suffixlen) {
     return (mkstemps(filetemplate, suffixlen));
 }
 #endif
 
 #if HAVE_MKDTEMP
-char *__hscore_mkdtemp(char *filetemplate) {
+char *__hstmp_mkdtemp(char *filetemplate) {
     return (mkdtemp(filetemplate));
 }
 #endif
diff --git a/include/HsTmp.h b/include/HsTmp.h
--- a/include/HsTmp.h
+++ b/include/HsTmp.h
@@ -8,15 +8,15 @@
 
 
 #if HAVE_MKSTEMP
-int __hscore_mkstemp(char *filetemplate);
+int __hstmp_mkstemp(char *filetemplate);
 #endif
 
 #if HAVE_MKSTEMPS
-int __hscore_mkstemps(char *filetemplate, int suffixlen);
+int __hstmp_mkstemps(char *filetemplate, int suffixlen);
 #endif
 
 #if HAVE_MKDTEMP
-char *__hscore_mkdtemp(char *filetemplate);
+char *__hstmp_mkdtemp(char *filetemplate);
 #endif
 
 #endif
diff --git a/lio.cabal b/lio.cabal
--- a/lio.cabal
+++ b/lio.cabal
@@ -1,5 +1,5 @@
 Name:           lio
-Version:        0.1.0
+Version:        0.1.1
 build-type:     Simple
 License:        GPL
 License-File:   LICENSE
@@ -64,7 +64,7 @@
                  time >= 1.1.4 && < 2,
                  dclabel >= 0.0.4 && < 2,
                  cereal >= 0.3.3 && < 0.4,
-                 base64-bytestring >= 0.1.0.4
+                 base64-bytestring >= 0.1.1.0
 
   ghc-options: -Wall -fno-warn-orphans