How fix "__gnuc_va_list" parse problem

When I parse some C file using splint as following cmd:

        splint  +posixlib -preproc -skipisoheaders -skipposixheaders *.c

it produces like below:
        
         Splint 3.0.1.7 --- 24 Jan 2003
        
        /usr/include/libio.h:464:18: Parse Error:
            Inconsistent function parameter syntax: __gnuc_va_list :
            <any>. (For help on parse errors, see splint -help
        parseerrors.)
        *** Cannot continue.
        
Does someone help me out!
Thanks advance !