Samba4 dependencies?

[Stefan (metze) Metzmacher]

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tridge at samba.org schrieb:
> Volker,
> 
>  > If I change something in torture/rpc/samba3rpc.c (no
>  > prototypes changed) and do a make, then all of torture/rpc
>  > and torture/libnet is recompiled.
>  > 
>  > Is that necessary?
> 
> That was caused by svn 17754. Metze removed the code in mkproto.pl
> which avoided the creation of a new proto header if it hadn't
> changed. The reason metze changed this is that after a few weeks of
> coding make was starting to call mkproto.pl on every prototype header
> on every compile. This happened because make had no way of knowing
> that the prototype didn't need updating.
> 
> I don't think either solution is really good. If we use the "smart"
> mode like we used to in mkproto.pl then make eventually gets slow. If
> we use the "dumb" mode like we currently have in the tree then we
> recompile stuff far too often.
> 
> We need to find a 3rd solution, or we need to go back to doing "make
> proto" manually. It's just too painful doing development with either
> of the above.
> 
> How about this:
> 
>  - revert 17754
>  - add a target "make proto" forces --always-create and recreates all
>    proto headers
> 
> Then add something to the developer docs saying that when make gets
> really slow, run "make proto". That way we will only do unnecessary
> rebuilds occasionally.

If you want then revert 17754, as I use
MK_PROTO_ALWAYS_CREATE=yes; export MK_PROTO_ALWAYS_CREATE
in my .bashrc:-)

And for me recompiling the files is no problem, it's really fast using
ccache.

metze
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