Win32api nmake VS10

Hi all,

I am trying to modify the makefile created by rootcint for the win32api library
to be compiled by nmake.
i have the targets for the input file .c,.h, .o given by
CIFC = G__c_win32api.c
CIFH = G__c_win32api.h
CIFO = G__c_win32api.obj

which give me a fatal error, as i dnt have these files…
Can anyone explain me where/how do i get the files?