[yocto] why compile "xserver-xorg" package on wayland projects?

[tugouxp]

hi folks:
    i am working on project with "DISTRO_FEATURE" set to "wayalnd",  during the compile procedure,  i saw the xserver pakage was compiled, which would complain compile error and stop the process.


i try to debug the dependciy, it seems the "weston" package bring the xorg-server ,package in , so i try to change the default bb file of poky 
poky/meta/recipes-graphics/wayland/weston_2.0.0.bb
and comment the following line
#RDEPENDS_${PN}-xwayland += "xserver-xorg-xwayland"
it seems work.
i dont know the reason and want to know if any elegant way to dealt with this prolbems?


thanks for your supply.


NOTE: linux-tina: compiling from external source tree /home/caozilong/WorkSpace/glibc/repo/lichee/linux-4.4
Currently  2 running tasks (2538 of 4483)  56% |############################################################################################                                                                        |
0: linux-tina-4.4.89-r0 do_compile - 0s (pid 1550)
1: xserver-xorg-2_1.19.3-r0 do_configure - 0s (pid 1578)
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