With most recent svn on Ubuntu 12.10 64-bit, the build is failing when trying to link.

It normally builds fine. I also ran make clean before compiling.

Here's the output:

Quote
Linking mess64...
obj/sdl64/mess/mame.a(megadriv.o): In function `delegate_generic_class* delegate
_base<void, address_space&, unsigned int, unsigned char, unsigned char, _noparam
>::late_bind_helper<mtech_state>(delegate_late_bind&)':
megadriv.c:(.text._ZN13delegate_baseIvR13address_spacejhh8_noparamE16late_bind_h
elperI11mtech_stateEEP22delegate_generic_classR18delegate_late_bind[delegate_generic_class* delegate_base<void, address_space&, unsigned int, unsigned char, unsigned char, _noparam>::late_bind_helper<mtech_state>(delegate_late_bind&)]+0xc): undefined reference to `typeinfo for mtech_state'
megadriv.c:(.text._ZN13delegate_baseIvR13address_spacejhh8_noparamE16late_bind_helperI11mtech_stateEEP22delegate_generic_classR18delegate_late_bind[delegate_generic_class* delegate_base<void, address_space&, unsigned int, unsigned char, unsigned char, _noparam>::late_bind_helper<mtech_state>(delegate_late_bind&)]+0x45): undefined reference to `typeinfo for mtech_state'
obj/sdl64/mess/mame.a(megadriv.o): In function `delegate_generic_class* delegate_base<unsigned char, address_space&, unsigned int, unsigned char, _noparam, _noparam>::late_bind_helper<mtech_state>(delegate_late_bind&)':
megadriv.c:(.text._ZN13delegate_baseIhR13address_spacejh8_noparamS2_E16late_bind_helperI11mtech_stateEEP22delegate_generic_classR18delegate_late_bind[delegate_generic_class* delegate_base<unsigned char, address_space&, unsigned int, unsigned char, _noparam, _noparam>::late_bind_helper<mtech_state>(delegate_late_bind&)]+0xc): undefined reference to `typeinfo for mtech_state'
megadriv.c:(.text._ZN13delegate_baseIhR13address_spacejh8_noparamS2_E16late_bind_helperI11mtech_stateEEP22delegate_generic_classR18delegate_late_bind[delegate_generic_class* delegate_base<unsigned char, address_space&, unsigned int, unsigned char, _noparam, _noparam>::late_bind_helper<mtech_state>(delegate_late_bind&)]+0x45): undefined reference to `typeinfo for mtech_state'
collect2: ld returned 1 exit status
make: *** [mess64] Error 1


If there's anything else that would be of use, please let me know.