[yocto] Conditional compile for package in layer.conf for Qemu

[Mark T]

Hi,

Is it possible to  omit packages when building for Qemu ?

I have a layer.conf file with various packages added via

IMAGE_INSTALL_append += "package_a"
IMAGE_INSTALL_append += "package_b"

I'd like to be able to do the following

IMAGE_INSTALL_append += "package_a"
if ( not qemu )
IMAGE_INSTALL_append += "package_b"
endif

How can I do this? can I insert python here ? what environment variables
should i be checking and what are thier values.

Thanks,
Mark
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