tm.h and multi-arch

[Theodore A. Roth]

If I add the following line to configue.tgt,

avr)		gdb_multi_arch=yes ;;

configure no longer creates a symlink from tm.h to config/avr/tm-avr.h.

The only thing I have in tm-avr.h is GDBINIT_FILENAME. Is there anywhere I
could #define GDBINIT_FILENAME and thus completely do away it tm-avr.h?

Is configure.tgt the preferred place to identify a target as multi-arch? I 
could put the "#define GDB_MULTI_ARCH 2" back in my tm-avr.h file unless 
tm-*.h files are being deprecated.

Ted Roth