enable long long and long double support in printf/scanf

[Artem B. Bityuckiy]

Jeff Johnston wrote:
> Patch with minor modifications checked in, thanks.  It was not necessary 
> to alter acinclude.m4  since the new configuration options are designed 
> to modify newlib.h.
It seems to me this is some convention that I don't know. Please, can 
you describe this issue in more details? Why some options are in 
acinclude.m4 but some are directly in configure.in? Why for example 
--enable-newlib-iconv isn't in acinclude.m4?

> Thus, the new options were placed in configure.in.  
> I modified configure.host to add some default option variables that 
> various platforms can set as needed.  At the end of configure.host, a 
> check is made to see if the configuration options are not set and if a 
> default is specified.  This allows the user to override defaults with 
> configuration options.

Thanks.

-- 
Best Regards,
Artem B. Bityuckiy,
St.-Petersburg, Russia.