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Old 10-24-2016, 04:12 PM   #1
Registered: Jan 2006
Distribution: Gentoo
Posts: 498

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How to set C++11 as default in KDevelop 5?


I have a rather irritating problem now, which I can't solve. The problem is, that I don't seem to find where to set the C++ standard to be used in KDevelop 5.

Upon the creation of the project, there is a window to make a build directory, where extra arguments can be passed. I added this to the extra arguments section: -std=c++11. It did not have any effect.

I also checked the project configuration window, where there is a language support section with a C/C++ parser tab. I have C++11 set as C++ Profile, but still no effect. When I try to build some source using C++11 features, I just get a message like this:
../main.cpp:10:57: error: in C++98 ‘usr_vec’ must be initialized by constructor, not by ‘{...}’
(I was trying to initialize a vector with some string values: vector<string> usr_vec = {"broccoli","eggplant","fish"})
So please could you tell me how to set KDevelop 5 to use >=C++11 as default? I would really appreciate that.


Last edited by pusrob; 10-24-2016 at 04:15 PM.
Old 10-26-2016, 05:41 AM   #2
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Registered: Feb 2009
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what I remember kdevelop works only with cmake projects, so you need to configure your cmake project

either by passing CMAKE_CXX_FLAGS='-std=c++11' to the cmake call
or go into the build directory in a console and write
make edit_cache

toggle to advanced, by pressing t
than edit the CMAKE_CXX_FLAGS and add -std=c++11
Old 10-27-2016, 10:12 AM   #3
Registered: Jan 2006
Distribution: Gentoo
Posts: 498

Original Poster
Rep: Reputation: 35
Thanks a4z,

Adding -std=c++11 to CMAKE_CXX_FLAGS in the advanced configuration window really does seem to work. Nice...


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