Re: [Boost-build] Building library with flex/bison inputs with dependencies

Subject: Re: [Boost-build] Building library with flex/bison inputs with dependencies
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2015-12-02 11:43:28

AMDG

On 12/02/2015 09:21 AM, Jim Hague wrote:
> I'm checking dependencies by running '-d +12' and examining the output. I see 
> a dependency for the .o on what I assume is the c-scanner output:
> 
> ->   2 Name: <pbin/gcc-4.4/debug/link-static/threading-multi>e2kmaplex.o
>         Loc: bin/gcc-4.4/debug/link-static/threading-multi/e2kmaplex.o
>            : Updating it
>            : Depends on bin/gcc-4.4/debug/link-static/threading-multi (stable)
>            : Depends on <pbin/gcc-4.4/debug/link-static/threading-multi-
> object(c-scanner)@5027>e2kmaplex.cpp (update) (max time)
> 
> But c-scanner/e2kmaplex.cpp is given as depending only e2kmaplex.cpp and 
> e2kmaplex.ll. I never see a dependency in the logs on the .hpp. Likewise when 
> I update the entire Boost.Build tree used to current git head. Should I expect 
> to see the header dependency in the logs?
> 

  You should not see the dependency in
a clean build, because the -d+12 dependency
graph is printed before the cpp file
is created.  The dependency should
appear if the cpp file already exists.

In Christ,
Steven Watanabe