fix another mergeo

Merge the [pgoyette-compat] branch

On ports without __HAVE_LONG_DOUBLE, make fabsl alias fabs.

For some reason, fabs lives in libc, not in libm, and our tests now
detect when fabs or fabsl is missing from libm. For those ports that

On ports without __HAVE_LONG_DOUBLE, make fabsl alias fabs.

For some reason, fabs lives in libc, not in libm, and our tests now
detect when fabs or fabsl is missing from libm. For those ports that
sometimes have long double and sometimes don't, make it conditional.

Still missing: fabs _and_ fabsl on ia64. Need help from an itanium
wizard! Other portmasters: Please take a look and see if I missed
any ports that might have long double where this alias will not work.

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Use __HAVE_FPU__ instead __HAVE_68881__

Add END(func)

Convert to normal Motorola syntax for addressing.
%r@ -> (%r)
%r@- -> -(%r)
%r@+ -> (%r)+
%r@(n) n(%r)
etc.
No object differences.

Remove clause 3 and 4 from TNF licenses

On m68000, all code is compiled softfloat, so functions
that return floats must do so in integer registers, as the
pre-SVR4 ABI code did. So in these functions we ignore
__SVR4_ABI__ if __HAVE_68881

On m68000, all code is compiled softfloat, so functions
that return floats must do so in integer registers, as the
pre-SVR4 ABI code did. So in these functions we ignore
__SVR4_ABI__ if __HAVE_68881__ is not also set.

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Add register prefixes.

When using the SVR4 ABI, just return floating point values in fp0.

Fix files using old TNF copyright notice

new implementation that simply clears most significant bit

New-style RCS id's. In assmebly files, use the RCSID() macro where
appropriate.

Machine-dependent files for generic m68k machines (copied from hp300)