Hi, Manuel Menal, le Tue 02 Aug 2005 01:47:51 +0200, a écrit : > blockdev.c:72: error: `_IOT__IOTBASE_size_t' undeclared here (not in a > function) This precise bug comes from a lack in libc/sysdeps/mach/hurd/bits/ioctls.h: just add #define _IOT__IOTBASE_size_t _IOT_SIMPLE (size_t) in your /include/bits/ioctls.h near definitions of _IOT__IOTBASE_*, and it should compile (not saying that it will actually work...). Regards, Samuel