[CMake] ExternalProject_Add, dependencies and Make

[Ben Pope]

On 08/07/13 21:45, Brad King wrote:
> On 7/4/2013 3:08 AM, Ben Pope wrote:
>> make -j project1 project2 # BROKEN (also reaches 158% complete :P)
>> make -j build_stuff       # fine
> 
> Right, the former has never worked even for normal targets.
> It is due to the way CMake creates a front-end Makefile to
> make each directory look like a local build tree.  It can
> probably be fixed but no one has had time to investigate.
> 
>> The only problem now is that the output is interleaved, I might see
>> something like:
>> [ 78%] [ 78%] [ 80%] [ 80%] [ 80%] [ 81%] Building....
>>
>> But I guess that's for performance reasons?
> 
> There are a few bug reports about that.  The calls that
> print the percentage and current build action are separate
> but need to be combined into an atomic line print.  Again
> it has never bothered anyone enough in practice to motivate
> them to spend time fixing it.

Thanks, that makes sense.

Ben