[ECOS] where are the files for include

[adon@walkersun]

Hi dear all:
 
    Now I have built all the compile tools and 
gdb for my system. A fter this, I wrote a simple program as 
the following:
 
    #include "stdio.h"
    int main(void)
    {
      printf("Hello 
CYGWIN");
      printf("Testing 
eCos");
    }
 
    the file name of this program is main.c, 
and  used the command 
 
    mips-tx39-elf-gcc -c main.c
 
    but the system prompt me "Could not find 
stdio.h", and I check my development evn, I found that there are no include 
files for the chip and there are no standard ANSI C library which include 
priftf, scanf, ....
So,does the situation correct?? How could I got the standard 
include files and how to make the standard library???
 
        Thanks
 
    Adon Chen