[RFC] libm replacement for Busybox

[Loïc Grenié]

2008/10/20 Denys Vlasenko <vda.linux at googlemail.com>:
> On Sunday 19 October 2008 05:15:56 am Rob Landley wrote:
>> On Saturday 18 October 2008 14:27:34 Denys Vlasenko wrote:
>> > >     They are neither very fast nor very precise (the
>> > >   trigonometric functions are awful, up to 16 bits are
>> > >   false)
>> >
>> > We use trigonometry in bb? wow. where?
>>
>> CONFIG_FEATURE_AWK_MATH, which already has a big warning that it requires
>> libm.
>
> Thanks Rob.
>
> I checked, only this option and dc applet seem to be the things
> needing libm on my machine. dc has no analogous CONFIG_FEATURE_DC_MATH.
>
> Will it satisfy you Loïc if we will rename CONFIG_FEATURE_AWK_MATH
> to CONFIG_FEATURE_AWK_LIBM (or ..._MATH_LIB, taking into account
> newbie user's needs) to indicate more clearly that this option
> will pull in libm, and add CONFIG_FEATURE_DC_LIBM too?
>
> Whoever doesn't want to link against libm is very likely
> to not require these awk/dc features, so [s]he will
> just unselect these two options.

     You just can let everything as is. I just offered an add-on, if it does not
  look like an improvement, do not change anything.

         Thanks,

               Loïc