GTIFF_SRS_SOURCE setting Issues

[TQGiser]

i got this warning:Set GTIFF_SRS_SOURCE configuration option to EPSG to use official parameters (overriding the ones from GeoTIFF keys), or to GEOKEYS to use custom values from GeoTIFF keys and drop the EPSG code.
The problem is which *.h or *.cpp can set this option either EPSG or GEOKEYS?
thanks

[jratike80]

The message probably comes from https://github.com/OSGeo/gdal/blob/a632e3093d6dd34cdcf979a5b2a20529fe2df943/frmts/gtiff/gt_wkt_srs.cpp.

Configuration options are set runtime, with command line programs like --config GTIFF_SRS_SOURCE GEOKEYS, with Python like in https://github.com/OSGeo/gdal/blob/fdb225ad7179aa7b5698383d73aa16b8b90c5dbc/autotest/gcore/tiff_srs.py
with gdaltest.config_option("GTIFF_SRS_SOURCE", "GEOKEYS"):.

You did not report a bug, so

IMPORTANT: Do NOT use GitHub to post any questions or support requests!
They will be closed immediately and ignored.

Questions should go to the gdal-dev mailing list at
https://lists.osgeo.org/mailman/listinfo/gdal-dev
or other support forums. GitHub issues are for bug
reports and suggestions for new features.

[TQGiser]

Thanks for tip;
i fixed this issue like this:
int main()
{
GDALAllRegister();
CPLSetConfigOption("GTIFF_SRS_SOURCE","EPSG");
}