diff -aur src.old/acpitool.cpp src/acpitool.cpp
--- src.old/acpitool.cpp	2008-03-29 18:06:52.000000000 +0100
+++ src/acpitool.cpp	2008-03-29 18:08:16.000000000 +0100
@@ -31,6 +31,8 @@
 #include <iostream>
 #include <iomanip>
 #include <fstream>
+#include <cstring>
+#include <cstdlib>
 #include <dirent.h>
 #include "acpitool.h"
 #include "thinkpad.h"
diff -aur src.old/battery.cpp src/battery.cpp
--- src.old/battery.cpp	2008-03-29 18:06:52.000000000 +0100
+++ src/battery.cpp	2008-03-29 18:11:30.000000000 +0100
@@ -30,6 +30,8 @@
 #include <iostream>
 #include <iomanip>
 #include <fstream>
+#include <cstdlib>
+#include <cstring>
 #include <dirent.h>
 #include "acpitool.h"
 #include "thinkpad.h"
diff -aur src.old/cpu.cpp src/cpu.cpp
--- src.old/cpu.cpp	2008-03-29 18:06:52.000000000 +0100
+++ src/cpu.cpp	2008-03-29 18:10:56.000000000 +0100
@@ -31,6 +31,8 @@
 #include <iomanip>
 #include <fstream>
 #include <dirent.h>
+#include <cstdlib>
+#include <cstring>
 #include "acpitool.h"
 #include "cpu.h"
 #include "freq.h"
diff -aur src.old/freq.cpp src/freq.cpp
--- src.old/freq.cpp	2008-03-29 18:06:52.000000000 +0100
+++ src/freq.cpp	2008-03-29 18:12:07.000000000 +0100
@@ -30,6 +30,8 @@
 #include <iostream>
 #include <iomanip>
 #include <fstream>
+#include <cstdlib>
+#include <cstring>
 #include <dirent.h>
 #include "acpitool.h"
 #include "freq.h"
diff -aur src.old/main.cpp src/main.cpp
--- src.old/main.cpp	2008-03-29 18:06:52.000000000 +0100
+++ src/main.cpp	2008-03-29 18:08:40.000000000 +0100
@@ -30,6 +30,7 @@
 #include <iostream>
 #include <iomanip>
 #include <fstream>
+#include <cstdlib>
 #include <unistd.h>
 #include <getopt.h>
 #include "acpitool.h"
diff -aur src.old/thinkpad.cpp src/thinkpad.cpp
--- src.old/thinkpad.cpp	2008-03-29 18:06:52.000000000 +0100
+++ src/thinkpad.cpp	2008-03-29 18:10:25.000000000 +0100
@@ -3,6 +3,8 @@
 #include <iomanip>
 #include <iostream>
 #include <fstream>
+#include <cstring>
+#include <cstdlib>
 
 using namespace std;
 int IBM_be_quiet = 1;
diff -aur src.old/toshiba.cpp src/toshiba.cpp
--- src.old/toshiba.cpp	2008-03-29 18:06:52.000000000 +0100
+++ src/toshiba.cpp	2008-03-29 18:09:14.000000000 +0100
@@ -31,6 +31,7 @@
 #include <iostream>
 #include <iomanip>
 #include <fstream>
+#include <cstring>
 #include "toshiba.h"
 
 using namespace std;