diff -Naur treewm-0.4.5.orig/src/resmanager.h treewm-0.4.5/src/resmanager.h
--- treewm-0.4.5.orig/src/resmanager.h	2003-09-12 19:06:15.000000000 +0200
+++ treewm-0.4.5/src/resmanager.h	2015-09-25 16:54:14.918495224 +0200
@@ -12,6 +12,7 @@
 #include "global.h"
 #include "client.h"
 #include <map>
+#include <cstring>
 
 struct ltstr {
   bool operator() (const char* s1, const char* s2) const  {
diff -Naur treewm-0.4.5.orig/src/textdialog.cc treewm-0.4.5/src/textdialog.cc
--- treewm-0.4.5.orig/src/textdialog.cc	2003-09-12 19:31:27.000000000 +0200
+++ treewm-0.4.5/src/textdialog.cc	2015-09-25 16:54:01.520496128 +0200
@@ -8,6 +8,7 @@
 #include "sceme.h"
 #include "uehandler.h"
 #include <X11/keysym.h>
+#include <cstring>
 
 void TextDialog::AddHistory() {
   if (!length)