diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,12 @@
+# 6.2.0.1
+
+  - This is a patch release fixing MacOS X compilation.
+
+  - Patched few minor warnings in imported Bibutils source.
+
+  - Implemented Travis-CI builds through Cabal and Stack.
+
+
 # 6.2
 
   - This release has removed `wordout_dropkey` because the corresponding
diff --git a/bibutils/iso639_1.h b/bibutils/iso639_1.h
--- a/bibutils/iso639_1.h
+++ b/bibutils/iso639_1.h
@@ -2,7 +2,7 @@
  * iso639_1.h
  */
 #ifndef ISO639_1_H
-#define iSO639_1_H
+#define ISO639_1_H
 
 extern char * iso639_1_from_code( const char *code );
 
diff --git a/bibutils/iso639_3.h b/bibutils/iso639_3.h
--- a/bibutils/iso639_3.h
+++ b/bibutils/iso639_3.h
@@ -2,7 +2,7 @@
  * iso639_3.h
  */
 #ifndef ISO639_3_H
-#define iSO639_3_H
+#define ISO639_3_H
 
 extern char * iso639_3_from_code( const char *code );
 
diff --git a/bibutils/xml.h b/bibutils/xml.h
--- a/bibutils/xml.h
+++ b/bibutils/xml.h
@@ -39,7 +39,7 @@
 char *   xml_tag         ( xml *node );
 int      xml_tagwithvalue( xml *node, char *tag );
 
-char *   xml_pns; /* global Namespace */
+extern char *   xml_pns; /* global Namespace */
 
 #endif
 
diff --git a/hs-bibutils.cabal b/hs-bibutils.cabal
--- a/hs-bibutils.cabal
+++ b/hs-bibutils.cabal
@@ -1,5 +1,5 @@
 name:               hs-bibutils
-version:            6.2
+version:            6.2.0.1
 homepage:           https://github.com/wilx/hs-bibutils
 
 synopsis:           Haskell bindings to bibutils, the bibliography
@@ -24,7 +24,7 @@
 license-file:       LICENSE
 author:             Andrea Rossato
 maintainer:         Václav Haisman <vhaisman@gmail.com>
-cabal-version:      >= 1.23
+cabal-version:      >= 1.16
 build-type:         Simple
 extra-source-files:
         bibutils/adsout.c bibutils/adsout_journals.c bibutils/bibcore.c
@@ -69,7 +69,7 @@
     includes: bibutils.h
     c-sources:
         cbits/stub.c
-        bibutils/adsout.c bibutils/adsout_journals.c bibutils/bibcore.c
+        bibutils/adsout.c bibutils/bibcore.c
         bibutils/biblatexin.c bibutils/bibl.c bibutils/bibtexin.c
         bibutils/bibtexout.c bibutils/bibtextypes.c bibutils/bibutils.c
         bibutils/bltypes.c bibutils/charsets.c bibutils/copacin.c