cc: Warning: perl.h, line 4175: In the initializer for PL_vtbl_arylen.svt_get, the referenced type of the pointer value "Perl_magic_getarylen" is "function (pointer to struct sv, pointer to const struct magic) returning int", which is not compatible with "function (pointer to struct sv, pointer to struct magic) returning int". (ptrmismatch) MGVTBL_SET( ^
A propos, I just remembered that one can get the Tru64 C compiler for Linux/alpha, called "ccc": http://h30097.www3.hp.com/linux/compaq_c/