Compilation probleme libssp

Salut
je m’essaie a la creation d’un compilateur pour avr(microcontrolleur)…
Je bricole, pas a pas, mais la je bloque sur l’erreur renvoyée par le “make”

../../../libssp/ssp.c:119: error: 'ssize_t' undeclared (first use in this function) ../../../libssp/ssp.c:119: error: expected ';' before 'wrote' ../../../libssp/ssp.c:120: error: 'wrote' undeclared (first use in this function) ../../../libssp/ssp.c:151: warning: implicit declaration of function '_exit' ../../../libssp/ssp.c:151: warning: incompatible implicit declaration of built-in function '_exit' ../../../libssp/ssp.c: In function '__stack_chk_fail': ../../../libssp/ssp.c:161: warning: incompatible implicit declaration of built-in function 'strlen' ../../../libssp/ssp.c:161: warning: passing argument 2 of 'fail' makes pointer from integer without a cast ../../../libssp/ssp.c:161: error: too many arguments to function 'fail' ../../../libssp/ssp.c: In function '__chk_fail': ../../../libssp/ssp.c:168: warning: incompatible implicit declaration of built-in function 'strlen' ../../../libssp/ssp.c:168: warning: passing argument 2 of 'fail' makes pointer from integer without a cast
Il y a un lien avec libssp, mais je rame. Merci d’avance.

PS : Mon systeme est en 64 bits, peut etre y a t il une piste…
Ciao