[U-Boot] Swig now required to build U-Boot?

[Simon Glass]

Hi Tom,

On 11 December 2017 at 18:51, Tom Rini <trini at konsulko.com> wrote:
> On Fri, Dec 08, 2017 at 04:16:41PM -0800, Sergey Kubushyn wrote:
>> On Fri, 8 Dec 2017, Simon Glass wrote:
>>
>> >Hi Stephen,
>> >
>> >On 8 December 2017 at 16:28, Stephen Warren <swarren at wwwdotorg.org> wrote:
>> >>Simon,
>> >>
>> >>Is it expected that the latest u-boot-dm.git master branch now requires
>> >>swig? All the non-sandbox builds on my test systems are failing:
>> >>
>> >>  CHK     include/config/uboot.release
>> >>  CHK     include/generated/timestamp_autogenerated.h
>> >>  GEN     ./Makefile
>> >>  UPD     include/generated/timestamp_autogenerated.h
>> >>  CHK     include/config.h
>> >>  CFG     u-boot.cfg
>> >>  SHIPPED scripts/dtc/pylibfdt/libfdt.i
>> >>  PYMOD   scripts/dtc/pylibfdt/_libfdt.so
>> >>unable to execute 'swig': No such file or directory
>> >>error: command 'swig' failed with exit status 1
>> >>make[4]: *** [scripts/dtc/pylibfdt/_libfdt.so] Error 1
>> >>make[3]: *** [scripts/dtc/pylibfdt] Error 2
>> >>make[2]: *** [scripts/dtc] Error 2
>> >>make[1]: *** [scripts] Error 2
>> >>make[1]: *** Waiting for unfinished jobs....
>> >
>> >Yes, unless we have a very recent libfdt on the system (and even then
>> >I'm not sure that it is picked up). We need swig to build pylibfdt
>> >which is needed for binman.
>>
>> Err, would it be long before we need Java/Eclipse/Maven/younameit to just
>> build U-Boot?
>
> There is a fine line to be walked here.  On the flip side, do we want to
> have to depend on N little external tools to put together a functional
> image?  We can use binman to avoid some subset of that.  That said,
> Simon, are we only building binman related stuff when we need binman in
> the end?  Thanks!

Sorry I missed this question but answered it on another thread. Yes we
are only building pylibfdt when it is needed. It is controlled by
CONFIG_PYLIBFDT which is enabled when binman or dtoc are needed.

Regards,
Simon