compiling code for ARM using Code Sourcery G++ Lite on windows XP

i have installed Code Sourcery G++ Lite on my windows Xp machine using self extracting installer
after that i tried to compile c code for arm on cygwin using this command = ‘arm-none-eabi-gcc filename.c’
but it is showing error like following :-

undefined reference to _fstat' undefined reference to _times’
undefined reference to _close' undefined reference to _isatty’
undefined reference to _lseek' undefined reference to _read’
undefined reference to `_sbrk’