RE: [avr-libc-dev] A possible workaround to bug #21872

[Weddington, Eric]

> -----Original Message-----
> From: 
> address@hidden 
> [mailto:address@hidden
> org] On Behalf Of Dmitry K.
> Sent: Tuesday, January 22, 2008 4:03 PM
> To: address@hidden
> Subject: [avr-libc-dev] A possible workaround to bug #21872
> 
> Hi.
> 
> Avr-libc bug #21872: __floatunsisf/undisf incorrectly named
> 
> This bug is fixed at the end of 2007 in HEAD and 1.6
> branches.
> 
> (Remember: It enlarges the program size approx. by 1kB. The
> reason is incorrect name of function unsigned_long_to_float
> conversion. So the libgcc's variant is used: large if flash
> and RAM.  This bug is actual with new compiler - 4.2 - for
> all Avr-libc branches, including 1.4, 1.2 and so on.)
> 
> This is actually to users who are not happy to load
> a corrected CVS Avr-libc version.
> 
> The possible workaround is to add the needed function
> manualy like:
> 
>    extern float __floatunssisf (unsigned long u);
>    float __floatunsisf (unsigned long u)
>    {
>      return __floatunssisf (u);
>    }
> 
> This is not the best method. This is the simplest
> to understand.

I would also like to do a new release of WinAVR in late February (next
month). At that time, I hope that we can release avr-libc 1.6.2, and
hopefully correct any issues like this.

Eric W.