user program #include problem

For example, a user program code:

#include <termios.h>

error:

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nios2-elf-gcc -c user.c -o user.o

In file included from user.c:7:

/cygdrive/d/altera/kits/nios2/bin/nios2-gnutools/H-i686-pc-cygwin/bin/../lib/gcc/nios2-elf/3.4.1/../../../../nios2-elf/include/termios.h:4:25: sys/termios.h: No such file or directory

make: *** [user.o] Error 1

nios2-elf-gcc -c util.c -o util.o

In file included from util.c:4:

/cygdrive/d/altera/kits/nios2/bin/nios2-gnutools/H-i686-pc-cygwin/bin/../lib/gcc/nios2-elf/3.4.1/../../../../nios2-elf/include/termios.h:4:25: sys/termios.h: No such file or directory[/b]

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