disabling libm

[J. Johnston]

Joel Sherrill wrote:
> Hi,
> 
> I am trying to update my tic4x toolset.  The tic4x does not
> use IEEE FP.  The last time I looked into this, the newlib libm
> was very IEEE FP format dependent.  It would be easier to not
> have newlib's libm for now.  Is it possible to completely disable
> it for a target?
> 

It is definitely "possible" via configuration; the question is whether
it is warranted.  Does the build fail or do any of the libm files
placed in libc cause problems?  I assume you are already just linking
in your own libm stuff anyway.

-- Jeff J.