Alan Hourihane wrote:
He/she can produce a m68000 compiled package and it should work on all Atari's, and completely ignore the other capabilities of GCC.
No, as I explained several times there is an incompatibility in the current gcc configuration (the default one in upstream sources). It is about functions returning float/doubles. With -soft-float (enabled by default for 68000) floats are returned into d0/d1. With -m68881 (enabled by default for -m68020 and higher) floats are returned in fp0. Thus, mixing programs and libraries with different CPU options will not work for functions returning floats.
Maybe the clever approach should be to change the default GCC behaviour (with a small performance loss) to always return floats into d0/d1 so a 68000 soft-float library will be compatible with any CPU (except ColdFire of course).
-- Vincent Rivière