diff -Naur xfce4-battery-plugin-0.5.0/panel-plugin/libapm.h xfce4-battery-plugin-0.5.0.tpg/panel-plugin/libapm.h
--- xfce4-battery-plugin-0.5.0/panel-plugin/libapm.h	2007-01-17 17:56:51.000000000 +0000
+++ xfce4-battery-plugin-0.5.0.tpg/panel-plugin/libapm.h	2008-04-15 23:34:04.000000000 +0000
@@ -17,8 +17,9 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
-#include <linux/apm_bios.h>
+#include <features.h>
 #include <sys/types.h>
+#include <linux/apm_bios.h>
 
 #define APM_PROC   "/proc/apm"
 #define APM_DEVICE "/dev/apm_bios"
@@ -30,6 +31,9 @@
 #define APM_32_BIT_SUPPORT      0x0002
 #endif
 
+typedef unsigned short apm_event_t;
+typedef unsigned short apm_eventinfo_t;
+
 typedef struct apm_info
 {
     const char driver_version[10];