Patch for KDE4Macros to use extra target on Windows

[Matthias Kretz]

On Friday 18 July 2008 23:38:45 Brad King wrote:
> Matthias Kretz wrote:
> > attached is a patch to use the new automoc macro which adds a new target
> > per default on Windows.
>
> Can someone point me to discussion of the original problem, please?

I think most of this was in german and private mail. So here's a summary:

I changed the automoc4 invocation (ADD_CUSTOM_COMMAND) to only depend on one 
file (i.e. <target>_automoc.cpp.files). I wanted to achieve that automoc4 gets 
called unconditionally, but without creating a new target. That's why a run of 
automoc4 now touches the file it depends on, one second after it touches its 
output file.
- With that make does what I want: execute automoc4 once per target on every 
call to make. If automoc4 decides there's nothing to do it doesn't touch any 
files and so make decides not to recompile the output file of automoc4.
- nmake seems to behave different in the last point: it thinks that if the 
output of automoc4 is a source file and automoc4 got called it has to 
recompile that source file, no matter whether automoc4 changed the timestamp 
or not. IIUC nmake internally updates the timestamp of the output source file 
and doesn't even look whether that corresponds with what happened on the 
filesystem.

-- 
________________________________________________________
Matthias Kretz (Germany)                            <><
http://Vir.homelinux.org/
MatthiasKretz at gmx.net, kretz at kde.org,
Matthias.Kretz at urz.uni-heidelberg.de