alpha.c: Include libfuncs.h
* config/alpha/alpha.c: Include libfuncs.h
(avms_asm_output_extern): New function.
(alpha_init_libfuncs): Init some decc libfuncs.
* config/alpha/alpha-protos.h (avms_asm_output_external): Declare.
* config/alpha/vms.h (ASM_OUTPUT_EXTERNAL): Define.
(DO_CRTL_NAMES): Define.
(LIB_SPEC): Remove.
* config/alpha/vms64.h: (POINTERS_EXTEND_UNSIGNED): Remove undef.
(LONG_TYPE_SIZE): Define.
(TARGET_OS_CPP_BUILTINS): Define with __LONG_POINTERS=1
(SUBTARGET_SWITCHES): Define malloc64 switch.
(TARGET_DEFAULT): Default MASK_MALLOC64 set.
(MASK_RETURN_ADDR): Define.
doc/invoke.texi (mmalloc64): Document switch.
From-SVN: r150614