diff --git a/eo/acconfig.h b/eo/acconfig.h
new file mode 100644
index 00000000..e1b82a58
--- /dev/null
+++ b/eo/acconfig.h
@@ -0,0 +1,2 @@
+#undef PACKAGE    
+#undef VERSION
diff --git a/eo/src/Makefile.am b/eo/src/Makefile.am
index f22bc979..89b02cc0 100644
--- a/eo/src/Makefile.am
+++ b/eo/src/Makefile.am
@@ -5,7 +5,6 @@
 ###############################################################################
 
 lib_LTLIBRARIES = libeo.la
-libeo_la_SOURCES = 
-libeo_la_SOURCES =  eoPersistent.cpp eoPrint eoPersistent.cpp eoPrintable.cpp
+libeo_la_SOURCES =  eoPrintable.cpp eoPersistent.cpp
 libeoincdir = $(includedir)/eo
 libeoinc_HEADERS = eo EO.h eoDup.h eoMultiMonOp.h eoPop.h eoUniform.h eoESChrom.h eoNegExp.h eoProblem.h eoVector.h eoFitness.h eoNormal.h eoRnd.h eoXOver2.h eo1d.h eoID.h eoObject.h eoString.h eoAged.h eoKill.h eoOp.h eoTranspose.h eoBin.h
diff --git a/eo/src/eoPersistent.cpp b/eo/src/eoPersistent.cpp
index 5ed66f3e..174aee62 100644
--- a/eo/src/eoPersistent.cpp
+++ b/eo/src/eoPersistent.cpp
@@ -2,9 +2,9 @@
 
 //Implementation of these objects
 
-//-----------------------------------------------------------------------------
-
+//-----------------------------------------------------------------------------
+
 istream & operator >> ( istream& _is, eoPersistent& _o ) {
-	_o.readFrom(_is);
-	return _is;
-};
\ No newline at end of file
+  _o.readFrom(_is);
+  return _is;
+};
diff --git a/eo/src/eoPersistent.h b/eo/src/eoPersistent.h
index cf2c2ba2..96413412 100644
--- a/eo/src/eoPersistent.h
+++ b/eo/src/eoPersistent.h
@@ -17,7 +17,7 @@ const unsigned MAXLINELENGTH=1024;
 //-----------------------------------------------------------------------------
 
 #include <iostream>  // istream, ostream
-#include <string> // para string
+#include <string>    // para string
 
 //-----------------------------------------------------------------------------
 #include <eoPrintable.h>