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To: Richard Purdie <rpurdie@rpsys.net>
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From: Jian Liu <jian.liu@windriver.com>
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Date: Tue, 19 Jan 2016 11:12:18 +0800
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Cc: Bruce Ashfield <bruce.ashfield@windriver.com>,
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Subject: Re: [PATCH 1/1] linux-libc-headers: set ALLOW_EMPTY
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On 2016年01月16日 02:17, Richard Purdie wrote:
> On Thu, 2016-01-14 at 14:46 +0800, Jian Liu wrote:
>> If setting IMAGE_INSTALL += "linux-libc-headers", do_rootfs will
>> cause
>> error.
>>    ERROR: linux-libc-headers not found in the base feeds
>>
>> This is because that there is no linux-libc-headers.rpm generated.
> There is no point in generating an empty package just for the sake of
> it. Surely you just shouldn't put that in IMAGE_INSTALL?
>
> Cheers,
>
> Richard

Yes, I submit this patch just considering that someone who is not 
familiar with yocto may be confused
by this behavior. There is linux-libc-headers bb file so IMAGE_INSTALL 
+= "linux-libc-headers" is taken for
granted.

This is really not a bug and it is just a usage problem.

Thanks!

//Jian

>
>> Signed-off-by: Jian Liu <jian.liu@windriver.com>
>>
>> diff --git a/meta/recipes-kernel/linux-libc-headers/linux-libc
>> -headers.inc b/meta/recipes-kernel/linux-libc-headers/linux-libc
>> -headers.inc
>> index 2ba6ed5..403360b 100644
>> --- a/meta/recipes-kernel/linux-libc-headers/linux-libc-headers.inc
>> +++ b/meta/recipes-kernel/linux-libc-headers/linux-libc-headers.inc
>> @@ -76,3 +76,5 @@ RRECOMMENDS_${PN}-dbg = "${PN}-dev (=
>> ${EXTENDPKGV})"
>>   
>>   INHIBIT_DEFAULT_DEPS = "1"
>>   DEPENDS += "unifdef-native"
>> +
>> +ALLOW_EMPTY_${PN} = "1"