On Wed, Mar 16, 2016 at 2:01 AM, Burton, Ross <ross.bur...@intel.com> wrote:
>
> On 16 March 2016 at 08:56, Mark T <mtl1nux...@gmail.com> wrote:
>>
>> I'd like to be able to do the following
>>
>> IMAGE_INSTALL_append += "package_a"
It's not typical usage to combine += with _append, pick one or the other.
Using _append is generally more reliable if you're not sure how the
variable you're appending to was originally initialised, however with
_append you need to manually include a leading space character, ie:
IMAGE_INSTALL_append = " package_a"
>> if ( not qemu )
>> IMAGE_INSTALL_append += "package_b"
>> endif
>
>
> The neater way would be if you can easily identify what "not qemu" is, for
> example:
>
> IMAGE_INSTALL_append_intel-corei7-64 = "package_b"
>
> Would install package_b only for intel-corei7-64 machines.
>
> If you want to support arbitrary machines but not qemu then something like
> this might work:
>
> MOREDEPS = "package_b"
> MOREDEPS_qemuall = ""
> IMAGE_INSTALL_append = " ${MOREDEPS}"
>
> (qemuall is an override that is enabled by all qemu machines)
Another alternative would be something like:
IMAGE_INSTALL_remove_qemuall = "package_b"
> Ross
>
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