another workaround to avoid modifying by gettextize...
diff --git a/autogen.sh b/autogen.sh
index 9984c76..98f8be3 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -142,13 +142,16 @@
 fi
 
 [ -f configure.ac~ ] && rm configure.ac~
+[ -f Makefile.am~ ] && rm Makefile.am~
 echo Running $GETTEXTIZE $GETTEXTIZE_FLAGS
 $GETTEXTIZE $GETTEXTIZE_FLAGS
 # revert changes from gettextize for workaround...
 [ -f configure.ac~ ] && mv configure.ac~ configure.ac
+[ -f Makefile.am~ ] && mv Makefile.am~ Makefile.am
 echo Running $GETTEXTIZE $GETTEXTIZE_FLAGS --po-dir=po-conf
 $GETTEXTIZE $GETTEXTIZE_FLAGS --po-dir=po-conf
 [ -f configure.ac~ ] && mv configure.ac~ configure.ac
+[ -f Makefile.am~ ] && mv Makefile.am~ Makefile.am
 
 echo Running $ACLOCAL $ACLOCAL_FLAGS
 $ACLOCAL $ACLOCAL_FLAGS