C++ header files and crash issue

[Steve the Fiddle]

If it's of interest / helpful, this change in Audacity avoids kDevelop
crashing:
https://github.com/audacity/audacity/commit/7857769f96fa8bd6d9954ba5b59bf95dee0b93ec

Steve

On Sun, 7 Jul 2019 at 23:54, Steve the Fiddle <stevethefiddle at gmail.com>
wrote:

>
>
> On Sun, 7 Jul 2019 at 22:37, René J.V. Bertin <rjvbertin at gmail.com> wrote:
>
>> On Sunday July 07 2019 19:34:38 Steve the Fiddle wrote:
>>
>>
>> >Am I not already asking "on the list"?
>>
>> No, you sent a few emails to me only, instead of to the list.
>>
>> >> To me this suggests that somehow the KDevelop parser adds a "using
>> std" or
>> >> similar that makes the std the active namespace. Go figure out where
>> that
>> >> happens ...
>> >>
>> >
>> >Are you saying this is a "bug"?
>>
>> I'm not saying that it is, nor that it isn't. I would first need to
>> understand what happens exactly, and why.
>>
>> >What do you mean "included via a compiler argument"?
>>
>> The `-include foo.h` compiler option tells the compiler to include a
>> headerfile before including the headerfiles from the #include statements in
>> the source code.
>>
>
> Where are you looking? Where will I see these compiler arguments that you
> refer to?
>
>
>>
>> >The compiler arguments that I use (successfully) are:
>> >../configure --with-lib-preference="local system" --with-ffmpeg="system"
>> >--disable-dynamic-loading --with-mod-script-pipe --with-mod-nyq-bench
>> >--enable-debug
>>
>> Those are not compiler arguments! They are configuration arguments that
>> specify how you want the project to be built.
>>
>> >Interesting. Is there any documentation about custom defines in kDevelop?
>> >How did you know to add those custom defines?
>>
>> Did you read the KDevelop handbook?
>>
>
> This:
> https://docs.kde.org/trunk5/en/extragear-kdevelop/kdevelop/kdevelop.pdf
> Yes, but there is no mention of "defines" as far as I can see. Are they
> called something else in the handbook?
>
> I don't see where it explains how to correctly set up include paths either.
> Do I need to manually add every directory in the project?
>
>
>
>> Select the Project/Open Configuration menu (I'm assuming you have only a
>> single project open in KDevelop); in the dialog that opens you can now
>> select "Language Support" and you will see tabs labelled "Includes/Imports"
>> and "Defines".
>>
>
> Yes, I've seen where to add defines, but Audacity has hundreds of defines.
> How did you know which defines needed to be added to kDevelop's
> configuration?
>
>
>>
>> >Could other custom defines be required?
>>
>> These have proven to be enough for me, but as I said, I don't do any real
>> development on Audacity.
>>
>
> Is there anyone in the kDevelop team that might be interested in, a)
> fixing the crash bug, b) helping the Audacity team to document setting up
> kDevelop for use with Audacity's code? Perhaps we can come to some
> arrangement that gives mutual benefit.
>
> Steve
>
>
>>
>> R.
>>
>
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