[pstricks] private dvips config.* files location

[Alexander Grahn]

Good afternoon,

if XeTeX detects PostScript content (PSTricks, included external PS
graphics) it seems to invoke the tex -> dvips -Ppdf -> ps2pdf toolchain
to produce intermediate PDF it can cope with. Thus, it uses the
settings stored in the config.pdf configuration file of dvips.

Where should I place a modified version with custom settings of it
which has precedence over the system wide file? Putting it in the PWD
has no effect.

Kind regards,
Alexander