diff -Nur probcons/CompareToRef.cc probcons-mod/CompareToRef.cc
--- probcons/CompareToRef.cc	2004-07-13 22:04:34.000000000 +0100
+++ probcons-mod/CompareToRef.cc	2009-12-18 04:55:56.000000000 +0000
@@ -18,6 +18,7 @@
 #include <cstdlib>
 #include <cerrno>
 #include <iomanip>
+#include <cstring>
 
 const char CORE_BLOCK = 'h';
 typedef pair<int,int> PII;
diff -Nur probcons/Main.cc probcons-mod/Main.cc
--- probcons/Main.cc	2007-04-03 18:37:16.000000000 +0100
+++ probcons-mod/Main.cc	2009-12-18 04:55:15.000000000 +0000
@@ -23,6 +23,7 @@
 #include <cstdlib>
 #include <cerrno>
 #include <iomanip>
+#include <cstring>
 
 string parametersInputFilename = "";
 string parametersOutputFilename = "no training";
diff -Nur probcons/ProjectPairwise.cc probcons-mod/ProjectPairwise.cc
--- probcons/ProjectPairwise.cc	2004-07-13 22:04:34.000000000 +0100
+++ probcons-mod/ProjectPairwise.cc	2009-12-18 04:56:21.000000000 +0000
@@ -18,6 +18,7 @@
 #include <cstdlib>
 #include <cerrno>
 #include <iomanip>
+#include <cstring>
 
 bool compressGaps = true;