Re: [Boost-build] Dependencies dropped during concurrent builds

Subject: Re: [Boost-build] Dependencies dropped during concurrent builds
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2013-10-28 18:14:45

AMDG

On 10/28/2013 09:36 AM, Nogradi, Chris wrote:
> I ran into an issue with dependencies getting dropped during concurrent builds.  I have submitted a Track ticket here with a sample project which exhibits the behavior:  https://trac.lvk.cs.msu.su/boost.build/ticket/231.  I can provide more information if it is needed.
> 

I think I've tracked this down.
True or false?  This problem only appear when
the header (reg_prv_intf_prj_gen.h) that #includes
the missing header (app_pub_verify_gen.h) is
produced by an action that generates multiple
targets.

If I split reg_gen into two actions then it
seems to work.

rule reg_gen {
    reg_gen1 $(1[1]) : $(2) ;
    reg_gen2 $(1[2]) : $(2) ;
}

actions reg_gen1
{
    echo /* stuff */ > $(<)
}

actions reg_gen2
{
    echo #include "app_pub_verify_gen.h" > $(<)
}

I'm working on a fix now.

In Christ,
Steven Watanabe