CLion filling temp directory

Question

CLion has been generating multiple ~100M sized preamble-* files in the standard /tmp directory.

1. Any suggestions on how this can be disabled?
2. Alternatively any suggestions on how to change the default temp directory?

Answer 1

The preamble-* files are created by Clang that is used by CLion.

To change the directory specify an environment variable TMPDIR=/your/preferred/location when running CLion.