[Scons-users] Question about emitter

[Dirk Bächle]

Hi Endre,

On 11.02.2016 21:53, Endre Bak wrote:
> "and append your object files to the "targets" instead. ;)"
>
> When I execute scons 2nd time, the generated .c file is already in place and the executed linker command seems to be OK: "gcc -o prg
> obj/main.o obj/Cfg.o". This case the "targets" is "prg" the "sources" are ["obj/main.o", "obj/Cfg.o"], "obj/Cfg.o" is the appended
> source.
>
> "Your SConstruct is a mix of SCons and calling os.system and mkdir and glob."
>
> Why is it a matter?
>
> Why is the emitter executed at Builder construction time and why it is not executed at Builder invokation?
>

before answering your questions, which will probably lead to a lot more "why"s from your side ;), did you read part of the UserGuide 
or the MAN page?

Best regards,

Dirk