[CMake] Generated Files Dependencies

[Mike Krus]

Hi

sorry for the delay. Yes, it indeed seems to be limited to the ninja generator. When I use Makefiles it all works fine (well, apart from it particularly slow which is why I switched to ninja in the first place ;-))

Also to note that I get he same rebuild-everything behaviour with files generated by moc or uic (from the Qt toolset).

Any ideas on how to track it down?



Mike



On 28 May 2013, at 20:26, Bill Hoffman <bill.hoffman at kitware.com> wrote:

> On 5/27/2013 4:45 PM, Mike Krus wrote:
>> Hi
>> 
>> I've started to use Protocol Buffers in my project.
>> 
>> .proto files gets "compiled" into c++ .cc and .h files using the
>> PROTOBUF_GENERATE_CPP that comes with CMake (2.8.10, Ninja
>> generator).
>> 
>> It all works fine except that the generated .cc and .h files become
>> dependencies of all the other files in the library, so if I change
>> the .proto file, the .cc and .h get regenerated (good), but then my
>> entire library gets recompiled (not just the files that #include the
>> generated .h file, bad!).
>> 
>> Is there an easy way of stopping this? Is it a CMake bug?
> 
> This maybe a ninja bug.  Can you try it with makefiles?
> 
> -Bill
> 
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