[yocto] Supporting upcoming distribution releases

[Darren Hart]

On 07/13/2011 01:04 AM, NiQingliang wrote:
> first sorry about that, indeed I don't know how to commit a patch, so
> just paste the diff result here.
> 
> diff --git a/oe-init-build-env b/oe-init-build-env
> index 77332a7..0da8bc0 100755
> --- a/oe-init-build-env
> +++ b/oe-init-build-env
> @@ -39,6 +39,20 @@ else
>     $OEROOT/scripts/oe-setup-builddir
>     unset OEROOT
>     unset BBPATH
> +

Before searching manually, we should attempt to use whatever is set in
the environment.

--
Darren

> +   # find the python version 2.x
> +   # the 'python -V' need redirect to stdout
> +   # precondition:
> +   #    $BUILDDIR is not NULL, but I doubt when it will be NULL.
> +   #    user have not made the file $BUILDDIR/python by himself.
> +   for PY_BIN in `find /{usr/,}bin -regex '.*/python\(\|2\|2\.[0-9]*
> \)'`; do
> +      if [ -n "`$PY_BIN -V 2>&1|grep '^Python 2\.'`" ]; then
> +         ln -sf $PY_BIN $BUILDDIR/python
> +         export PATH="$BUILDDIR:$PATH"
> +         break
> +      fi
> +   done
> +
>     [ -n "$BUILDDIR" ] && cd $BUILDDIR
>  fi
> 
> 
> On Wed, 2011-07-13 at 10:31 +0800, Joshua Lock wrote:
>> On Wed, 2011-07-13 at 10:19 +0800, NiQingliang wrote:
>>> /usr/bin/env python2
>>> /usr/bin/env python2.7
>>
>> These are both valid on Fedora 15, iirc before distributions started
>> shipping Python 3 they were less common though...
>>
>>> both of them are ok for archlinux, but I don't know which is ok for
>>> other distributions, maybe both are not.
>>>
>>> maybe we can make a shell script to detect the python version, and make
>>> a symbollink to the right one in some directory, and add the directory
>>> into env var "PATH".
>>
>> Patches welcome :-)
>>
>> I looked at it briefly and the work would require more time than I have
>> spare right now just to ensure it worked on all required distributions.
>>
>> If you'd like to work on a patch I'd be happy to help test and review.
>>
>> Cheers,
>> Joshua
>> --
>> Joshua Lock
>>         Yocto Project "Johannes factotum"
>>         Intel Open Source Technology Centre
>>
> 

-- 
Darren Hart
Intel Open Source Technology Center
Yocto Project - Linux Kernel