Compiling Modules

I have a problem to use my LIBUSB.mod in BlitzMax1.26.
This is the BlitzMax Module.

SuperStrict

Module sch.libusb

ModuleInfo "Version:	 	1.00"
ModuleInfo "Modserver:	Not yet implemented"
ModuleInfo "Author:	 	Sven Schwiecker (MacOS part)"
ModuleInfo "License:	 	Public Domain"
ModuleInfo "Contact:	 	Sven.Schwiecker@..."
ModuleInfo "Homepage:	www.SvenSchwiecker.de"

?MacOS
'Import "include/*.h"
Import "usbmax.c"
Import "darwin.c"
Import "usb.c"
Import "descriptors.c"
Import "error.c"
'Import "usbpp.cpp"

Extern "C"

Function usb_init()
Function usb_set_debug:Int(level:Int)

Function usb_find_busses:Int()
Function usb_find_devices:Int()

Function get_usb_busses:Int()
Function get_usb_device:Int()

Function print_device:Int()
Function print_configuration:Int()
Function showmain:Int()
EndExtern

This is my sample BlitzMax program:

'usbtest



x=usb_find_busses()
Print "USB Busses found:   "+x
x=usb_find_devices()
Print "USB Devices found: "+x

Can someone tell me that is wrong under BlitzMax 1.26 it works fine.