Calls to built-in functions are not Binary Compatible

[Tom Tromey]

>>>>> "Andrew" == Andrew Pinski <pinskia@physics.uc.edu> writes:

>> This happens with methods like Math.pow() which are converted to
>> builtins.  Unfortunately, this leads to direct calls to methods in
>> libgcj.  This breaks binary compatibility when we change gcj's name
>> mangling.  Which we just did.

Andrew> Aren't those direct function calls to libc functions though so
Andrew> they really don't have an effect from gcj's name mangling?

No, but some of these do lower to things which aren't function calls
at all.  For instance take a look at how Double.longBitsToDouble is
handled.

Tom