[OE-core] meta-toolchain / /bin/sh requirement / ldconfig backfill

[Mark Hatle]

On 9/18/17 4:05 PM, Andre McCurdy wrote:
> On Mon, Sep 18, 2017 at 12:30 PM, Mark Hatle <mark.hatle at windriver.com> wrote:
>>
>> Because of this, there is no way (with a default configuration) to build
>> meta-toolchain....
>>
>> Investigating further, ldconfig support moved from "USE_LDCONFIG" to a
>> distribution configuration.  It does this via the "DISTRO_FEATURES_BACKFILL"
>> (introduced in commit: a905df2dd8f43a2febffa64a39b6e508510326a0)
> 
> The intention of that commit was only to change the way support for
> running ldconfig on the target is controlled (ie changed from an
> ad-hoc bitbake variable to a distro config option). It's enabled by
> default now, but it was enabled by default before that commit as well.
> 
> Did meta-toolchain work previously? If so, was USE_LDCONFIG being
> forced to 0 somewhere?

In many distributions, the default was 0.  The backfill change made the default
now '1'.  You have to know to 'skip' it, with the line below.

>> If I add to my configuration:
>>
>>  DISTRO_FEATURES_BACKFILL_CONSIDERED_append = " ldconfig"
>>
>> This works around the issue...  but doesn't resolve the default issue....
>>
>> So my question is, is this behavior (the failure case) really acceptable without
>> telling the user what is happening?  Or do we need to add something to the
>> system that says meta-toolchain can't be used with this DISTRO_FEATURE?  or...
>>
>> --Mark
>> --