[GRASS-dev] Min. req. of programming language standard support, GRASS GIS 8

[Markus Metz]

On Fri, Feb 5, 2021 at 8:29 PM Markus Metz <markus.metz.giswork at gmail.com>
wrote:
>
>
> On Thu, Feb 4, 2021 at 5:35 AM Vaclav Petras <wenzeslaus at gmail.com> wrote:
>
> > Similarly to the GDAL and PROJ issue where I don't think it is
necessary to have GRASS C89/C++98 compliant when you need C++11 for GDAL
anyway.
>
> The C code of GRASS master is currently compatible with a lot of GDAL and
PROJ versions, also GDAL 1.xand PROJ 4.8.x which most likely do not require
C++11 or C99. If we want to keep this compatibility, we need to stick with
the lower C and C++ standards. Related to the question which currently
supported production environments we want to support.

My PR 1283 [0] is related to this discussion, it does not work with stock
Centos 7, and the github test with Centos 7 is thus failing. Of course it
is still possible to use GRASS master on Centos 7 as long as there is a
more recent PROJ version (as in my setup).

I suggest removing the github test for Centos 7 and using Centos 8 instead,
if possible. This does not mean that GRASS master is no longer running on
Centos 7, or similar old, but still supported OS's. This means that people
who want to use GRASS master with those OS's need to update certain GRASS
dependencies themselves. As long as those OS's support the minimum C and
C++ standards required by GRASS.

Markus M

[0] https://github.com/OSGeo/grass/pull/1283
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