Changes for a `m68k-motorola-sysv'

[meissner@cygnus.com]

|   > 
|   > #ifndef TARGET_DEFAULT
|   > #define TARGET_DEFAULT (MASK_68040|MASK_BITFIELD|MASK_68881|MASK_68020)
|   > #endif						 ^^^^^^^^^^
|   > 
|   > how do you assume that these bits will be removed from the default,
|   > if gcc will be called with an argument specifying a cpu that doesn't
|   > actually have such an fpu?
| I would think the right thing to do is to have t-mot3300 arrange for
| -msoft-float to be included when building multilibs for the pure
| 68000.
| 
| I'm not that familiar with the multilib stuff, but I would think this
| something it should be able to handle.

Yes, MULTILIB_MATCHES is what you want.  For example on the rs6000/powerpc
configs, MULTILIB_MATCHES is eventually set to:

	msoft-float=mcpu?403 \
	msoft-float=mcpu?821 \
	msoft-float=mcpu?860 \
	mlittle=mlittle-endian \
	mbig=mbig-endian \
	mcall-sysv=mcall-sysv-eabi \
	mcall-sysv=mcall-sysv-noeabi

This says that if the compiler sees -mcpu=403, it should assume that it also
sees -msoft-float (the '?' is replaced by an '=').