[GRASS-dev] Make Changes to Modules in Grass GIS

[Vidura Dantanarayana]

Hi  Vaclav,
Of course, that helped me a lot. Thank you so much.

BR,
Vidura Dantanarayana

On Sat, Aug 4, 2018 at 7:38 AM Vaclav Petras <wenzeslaus at gmail.com> wrote:

>
>
> On Fri, Aug 3, 2018 at 9:50 AM, Vidura Dantanarayana <vidurada at gmail.com>
> wrote:
>
>> Hi all,
>> I have installed ubuntu, downloaded the source code from
>> https://grass.osgeo.org/grass74/source/grass-7.4.1.tar.gz and installed
>> grass-dev package. Since I do not have experience with c can you again
>> briefly explain how to do changes and compile the code. Is the workflow
>> following is correct to do what I intended.
>>
>> 1) copy r.ros folder from grass-7.4.1/raster and rename it as r.new.ros
>> 2) make relevant changes to main.c file in r.new.ros
>>
>
>
> Yes and yes.
>
>
>
>> 3) compile the code with 'make' command.
>>
>
> You will need to provide parameters to help make find the GRASS GIS
> installation and where to put the compiled module. The g.extension module
> will do this for you if you do something like this:
>
> g.extension extension=r.new.ros url=/path/to/r.new.ros
>
>
>
>>
>> * can you explain what the grass-dev package does.
>>
>
> Usually, for most packages on Linux, the files needed for development,
> e.g. linking with the library, are not distributed together with the
> library and program in the package without -dev (since unless you do
> development you don't need them). If you install the grass-dev package you
> get, for example the C header files for the libraries (that's actually most
> of what you get). You can list all these files using:
>
> dpkg --listfiles grass-dev
>
> Additionally, you should also get all the compile-time dependencies of
> GRASS GIS not only the runtime ones which is very useful.
>
> HTH,
> Vaclav
>
>
>> Thank you. Have a nice day.
>>
>> BR,
>> Vidura Dantanarayana
>>
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>>
>
>
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