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Re: What is *.cpp.d, and why is it breaking my compilations?

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.d files are generated dependency files.

http://scottmcpeak.com/autodepend/autodepend.html

https://www.gnu.org/software/make/manual/html_node/Automatic-Prerequisites.html

Your Ninja build is probably not generating these, (config issue?).

Jeff



On 10/18/2016 11:58 AM, Jarle Aase wrote:
> Just a few observations:
>
>  1) Both ninja and Unix Makefiles works if I use cmake on the 
> command-line
>
>  2) Kdevelop successfully compiles the project if I use Unix Makefiles 
> for cmake in stead of Ninja.
>
> So the problem seems related with Ninja. However, it would still be 
> interesting to understand why it is failing.
>
>
> Alll the best,
>
> Jarle
>
>
> Den 18. okt. 2016 19:44, skrev Jarle Aase:
>> Hi fellow developers,
>>
>> After upgrading Debian Testing a few weeks ago, some of my pet 
>> projects could no longer build. They are all C++ projects, using 
>> CMake. I use Kdevelop as my IDE. I waited a while and upgraded again 
>> today, hoping that the problem would be gone. Unfortunately it was not.
>>
>> For example (from: https://github.com/jgaa/restc-cpp):
>>
>> ~$ src/restc-cpp/dbuild> /usr/bin/ninja
>> [6/15] Building CXX object 
>> src/CMakeFiles/restc-cpp.dir/ConnectionPoolImpl.cpp.o
>> FAILED: src/CMakeFiles/restc-cpp.dir/ConnectionPoolImpl.cpp.o
>> /usr/bin/c++   -D__USE_FILE_OFFSET64=1 -D__USE_LARGEFILE64=1 
>> -I../include -I../externals/rapidjson/include -g -DDEBUG=1 -D_DEBUG=1 
>> -o0 -g    -Wall -fPIC -std=c++14 -pthread -MD -MT 
>> src/CMakeFiles/restc-cpp.dir/ConnectionPoolImpl.cpp.o -MF 
>> src/CMakeFiles/restc-cpp.dir/ConnectionPoolImpl.cpp.o.d -o 
>> src/CMakeFiles/restc-cpp.dir/ConnectionPoolImpl.cpp.o -c 
>> ../src/ConnectionPoolImpl.cpp
>> cc1plus: fatal error: 
>> src/CMakeFiles/restc-cpp.dir/ConnectionPoolImpl.cpp.d: No such file 
>> or directory
>> compilation terminated.
>>
>> This project used to compile fine with Debian Stable, Debian Testing, 
>> Ubuntu LTS, Suse and even Microsoft Windows.
>>
>> If someone here has already stumbled into this problem and know how 
>> to fix it, please tell me how. I'm eager to move my projects forward :)
>>
>> All the best,
>>
>> Jarle
>>
>

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What is *.cpp.d, and why is it breaking my compilations? Jarle Aase <jgaa@jgaa.com> - 2016-10-18 18:50 +0200
  Re: What is *.cpp.d, and why is it breaking my compilations? Jarle Aase <jgaa@jgaa.com> - 2016-10-18 19:00 +0200
    Re: What is *.cpp.d, and why is it breaking my compilations? Jeffrey Kinross <jkinross@codezilch.com> - 2016-10-19 13:20 +0200

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