[pstricks] smith chart problem in Texlive 2020

[Patrice MEGRET]

Dear Herbert,

I have been using a lot the Smith chart (by Germi Camps) on pstricks website.
Everything works fine except with TexLive 2020 where the transformation ps2pdf calls GS-9.53.2 which gives the following warning and error:

D:\Latex_PM\tests_Alex>ps2pdf smith.ps
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
   **** WARNING: .setopacityalpha is deprecated (as of 9.53.0) and will be removed in a future release
   **** See .setfillconstantalpha/.setalphaisshape for the improved solution
Error: /undefinedresult in --exp--
Operand stack:
   --nostringval--   1   -1   2
Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--   --nostringval--   --nostringval--   false   1   %stopped_push   2022   1   3   %oparray_pop   2021   1   3   %oparray_pop   2009   1   3   %oparray_pop   1865   1   3   %oparray_pop   --nostringval--   %errorexec_pop   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--   --nostringval--   --nostringval--
Dictionary stack:
   --dict:757/1123(ro)(G)--   --dict:0/20(G)--   --dict:148/200(L)--   --dict:180/300(L)--   --dict:126/200(L)--
Current allocation mode is local
Current file position is 868625
GPL Ghostscript 9.53.2: Unrecoverable error, exit code 1

I do not see hiw to solve the problem.
Thanks for your help.

Best regards,
Patrice


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