AC_FUNC_UTIME_NULL
AC_FUNC_ALLOCA
AC_CHECK_FUNCS(waitpid wait4 getcwd strdup strerror chown chmod mknod mkfifo \
- fchmod fstat strchr readlink link utime utimes strftime mtrace \
+ fchmod fstat strchr readlink link utime utimes strftime mtrace ftruncate \
memmove lchown vsnprintf snprintf asprintf setsid glob strpbrk \
strlcat strlcpy strtol mallinfo getgroups setgroups geteuid getegid)