Tried to build the target twice

Subject: Tried to build the target twice
From: Dmitry Moskalchuk (dm_at_[hidden])
Date: 2016-07-10 13:47:57

Hello,

Last couple of days I see the following problem running Boost regression
tests for Android:

error: Name clash for '<p/home/cislave/.crystax/ci-boost/regression/android-21-x86-gnu-develop/test/develop/regression/x86/test/results/boost/bin.v2/libs/gil/test/__boost_check_library__.test/gcc-4.9/release/link-static/target-os-android/threading-multi>__boost_check_library__.test'
error: 
error: Tried to build the target twice, with property sets having 
error: these incompatible properties:
error: 
error:     -  none
error:     -  none
error: 
error: Please make sure to have consistent requirements for these 
error: properties everywhere in your project, especially for install
error: targets.

Does anybody known what that means? It's obviously result of the recent changes in Boost sources, since it appears just couple of days ago, but I have no idea where to see to fix that.

I suspect it has something to the fact we're running b2 with both static and shared variants enabled simultaneously. As far as I know, none of the Boost publishing testers do that - they all run b2 either with static or shared Boost libraries, but not with both static _and_ shared at the same time. It looks like the path for target doesn't take into account static/shared linking variant and produce the same target name for both of them, causing this error. What do you think?

-- 
Dmitry Moskalchuk