I have found that adding "inherit populate_sdk_qt5" to my image recipe might be 
what I need. The problem is that it also fails with building some strange 
modules. I have found though that this can avoided by removing 
"nativesdk-packagegroup-qt5-toolchain-host" from that recipe. What seems to 
have the same effect is to add only "TOOLCHAIN_HOST_TASK += 
"nativesdk-packagegroup-qt5-toolchain-host" to my image recipe. This works fine 
and compiles. It even adds the qt files to the toolchain but for some reason it 
seems to break the toolchain installer which then crashes with "Setting it 
up...ls: cannot access /usr/local/simonsdk/environment-setup-*: No such file or 
directory".  This leaves me with a partially installed and useless toolchain. I 
have looked and looked but I cannot seem to figure out how the qt recipes can 
be causing this, any ideas?

> From: [email protected]
> To: [email protected]
> Date: Sun, 6 Dec 2015 10:07:26 +0000
> Subject: [oe] [meta-qt5] Getting Qt support inside an image toolchain
> 
> I have read that the Qt toolchain components should these days be included in 
> the toolchain of an image when -c populate_sdk is run for an image that 
> contains Qt modules. I can confirm that Qt is in fact built with my image and 
> works on my board. I can also confirm that the toolchain files like qmake are 
> built and reside in the Yocto build directories. The problem is that they do 
> not seem to be included in the toolchain installer. I know one can use 
> meta-toolchain-qt5 but that appears to want to build every single module 
> there is? Besides wasting a lot of time and space, that is not really an 
> option for me because the building of some modules fails because I have a 
> very troublesome bsp that I have to work with and I do not want to try to fix 
> up those unneeded packages just to get a toolchain... I know that I have 
> previously been able to get an sdk built with only the qt modules included in 
> my image and I could have sworn it was with populate_sdk but that does not 
> seem to wo
 rk
>   now. Is there something that I need to configure before this will work or 
> is there some other way that it should be built?
>                                         
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