[gdal-dev] How to build py-gdal using the C++ compiler

Even Rouault even.rouault at spatialys.com
Wed Jun 17 06:38:33 PDT 2020

On mardi 16 juin 2020 20:41:28 CEST Ryan Schmidt wrote:
> Hello, I'm a developer with MacPorts. We have this problem: py-gdal is
> written in C++ but it gets compiled using the C compiler and CFLAGS and
> linked using the C++ compiler and LDFLAGS. We would like it to be compiled
> using the C++ compiler and CXXFLAGS. How can this be accomplished? We have
> a need to supply the build with certain flags in CXXFLAGS but they are
> currently being ignored, resulting in build failures like this:
> https://trac.macports.org/ticket/57621
> I know that distutils simply has the defect that it does not support C++
> software at all, resulting in the above condition. This bug was never fixed
> before distutils was retired.
> https://bugs.python.org/issue1222585
> I am trying to figure out whether distutils' replacement setuptools is still
> suffering from the same problem and needs to be fixed or whether there is
> something that needs to be changed in py-gdal and other similar projects to
> make it work. Do you know?

What is py-gdal exactly ? A build of the "official" GDAL SWIG Python bindings ?

Python extension building is always a bit of black magick to me, but our continuous 
integration does include building them on the Mac. For example, 
https://github.com/OSGeo/gdal/runs/779871427 . I guess this must be through setuptools


Spatialys - Geospatial professional services
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