diff -ru isight-firmware-tools-1.5.90/src/export.c isight-firmware-tools-1.5.90/src/export.c
--- isight-firmware-tools-1.5.90/src/export.c	2008-03-24 17:52:16.000000000 +0100
+++ isight-firmware-tools-1.5.90/src/export.c	2010-02-26 12:40:07.000000000 +0100
@@ -35,6 +35,8 @@
 #include <glib/gi18n.h>
 #include <glib/gstdio.h>
 
+#include <locale.h>
+
 /* OPTIONS */
 static gchar *input	= NULL;
 static gchar *output	= "isight.ihx";
diff -ru isight-firmware-tools-1.5.90/src/extract.c isight-firmware-tools-1.5.90/src/extract.c
--- isight-firmware-tools-1.5.90/src/extract.c	2009-08-13 18:50:54.000000000 +0200
+++ isight-firmware-tools-1.5.90/src/extract.c	2010-02-26 12:39:42.000000000 +0100
@@ -36,6 +36,8 @@
 #include <glib/gi18n.h>
 #include <glib/gstdio.h>
 
+#include <locale.h>
+
 /*
  * Foreach file identified by their sha1sum, we store the offset where
  * the firmware begin in the file.
Only in isight-firmware-tools-1.5.90/src: isight.rules.in
diff -ru isight-firmware-tools-1.5.90/src/load.h isight-firmware-tools-1.5.90/src/load.h
--- isight-firmware-tools-1.5.90/src/load.h	2009-06-18 19:31:45.000000000 +0200
+++ isight-firmware-tools-1.5.90/src/load.h	2010-02-26 12:40:41.000000000 +0100
@@ -36,6 +36,8 @@
 #include <glib.h>
 #include <usb.h>
 
+#include <locale.h>
+
 #ifndef _LOAD_H_
 #define	_LOAD_H_