[Scons-users] intermediate builder step -- wish for no-build when the original files are unch

[Dirk Bächle]

Hi Jay,

thanks a lot for your follow-up post. I'll have some more time to look 
into this tonight. For now I have a rather simple question (see below).

On 04.06.2013 02:36, Jay Damask wrote:

> Hello again.

>

> [...]

> Clean first run:

> $ scons commLib

> invokes:

> protoc --proto_path=<foo> --cpp_out=<bar> #/p/a.proto #/p/b.proto

> which makes #/p/

> a.pb.h, a.pb.cc, b.pb.h, b.pb.cc

> invokes:

> g++ -o #/b/a.pb.os #/p/a.pb.cc

> g++ -o #/b/b.pb.os #/p/b.pb.cc

> g++ <make comm_lib>

>

>

> Dirty second run:

> $ scons commLib

> invokes:

> protoc --proto_path=<foo> --cpp_out=<bar> a.proto b.proto

> which makes #/p/

> a.pb.h, a.pb.cc, b.pb.h, b.pb.cc

> build completes


"What happens if you start SCons another time, right after the second 
run and without changing any sources?"

Is everything up to date then?

Regards,

Dirk