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If I want to change the directory of the GDAL_DATA path or point to a different version of a csv file for EPSG numbers how do I do that using the C++ API?

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up vote 2 down vote accepted

Use CPLSetConfigOption. See the Config Options docs.

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Thanks, Luke! if I had any reputation I would upvote your answer –  David May 24 '13 at 16:36
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