Help compilation Simple OS

make -C userland
make[1]: entrant dans le répertoire « /home/duchnoki/Bureau/sos-code-article9.5/userland »
gcc -static -Wl,--warn-common -nostdlib -Wl,-Tldscript.lds -o init fstest_utils.o init.o crt.o libc.a /usr/lib/gcc/i486-linux-gnu/4.4.1/libgcc.a 
fstest_utils.o: In function `cwd_ls':
fstest_utils.c:(.text+0x3aa): undefined reference to `__stack_chk_fail'
libc.a(libc.o): In function `printf':
libc.c:(.text+0x3c7): undefined reference to `__stack_chk_fail'
libc.a(stdarg.o): In function `vsnprintf':
stdarg.c:(.text+0x551): undefined reference to `__stack_chk_fail'
libc.a(debug.o): In function `bochs_printf':
debug.c:(.text+0x5b): undefined reference to `__stack_chk_fail'
collect2: ld returned 1 exit status
make[1]: *** [init] Erreur 1
make[1]: quittant le répertoire « /home/duchnoki/Bureau/sos-code-article9.5/userland »
make: *** [userland/userprogs.kimg] Erreur 2