[XeTeX] xetex, pstricks, dvipdfmx-unsafe.cfg

[Bruno Voisin]

> On 19 Mar 2021, at 14:09, Bruno Voisin <bvoisin at icloud.com> wrote:
> 
> I'll try to investigate later today what may have triggered the problem.

Thanks to much debugging by Herb Schulz off-list the source of the problem has now been identified, I think.

There are two dvipdfmx.cfg in tlpretest:

% kpsewhich -progname=dvipdfmx -format=othertext -all dvipdfmx.cfg                                 
/usr/local/texlive/2021/texmf-config/dvipdfmx/dvipdfmx.cfg
/usr/local/texlive/2021/texmf-dist/dvipdfmx/dvipdfmx.cfg

The one in texmf-config has precedence, and its call of gs includes -dDELAYSAFER (a synonym for -dNOSAFER):

D  "rungs -q -dALLOWPSTRANSPARENCY -dDELAYSAFER -dNOPAUSE -dBATCH -dEPSCrop -sPAPERSIZE=a0 -sDEVICE=pdfwrite -dCompatibilityLevel=%v -dAutoFilterGrayImages=false -dGrayImageFilter=/FlateEncode -dAutoFilterColorImages=false -dColorImageFilter=/FlateEncode -dAutoRotatePages=/None -sOutputFile='%o' '%i' -c quit"

It's used by default, and gives no error with TransparencyTest.xdv.

The version in texmf-dist is the one modified by Akira, and its call of gs includes -dSAFER:

D  "rungs -q -dALLOWPSTRANSPARENCY -dSAFER -dNOPAUSE -dBATCH -dEPSCrop -sPAPERSIZE=a0 -sDEVICE=pdfwrite -dCompatibilityLevel=%v -dAutoFilterGrayImages=false -dGrayImageFilter=/FlateEncode -dAutoFilterColorImages=false -dColorImageFilter=/FlateEncode -dAutoRotatePages=/None -sOutputFile='%o' '%i' -c quit"

It's this version which gives the error reported by Akira with TransparencyTest.xdv:

[1Error: /invalidfileaccess in --run--
Operand stack:
   (/usr/local/texlive/2021/texmf-dist/dvips/pstricks/pstricks.pro)   (r)
Execution stack:
   %interp_exit   .runexec2   --nostringval--   run   --nostringval--   2   %stopped_push   --nostringval--   run   run   false   1   %stopped_push   1974   1   3   %oparray_pop   1973   1   3   %oparray_pop   1961   1   3   %oparray_pop   1817   1   3   %oparray_pop   --nostringval--   %errorexec_pop   .runexec2   --nostringval--   run   --nostringval--   2   %stopped_push   --nostringval--   1974   1   3   %oparray_pop   run
Dictionary stack:
   --dict:755/1123(ro)(G)--   --dict:0/20(G)--   --dict:75/200(L)--
Current allocation mode is local
Last OS error: Permission denied
Current file position is 69
GPL Ghostscript 9.53.3: Unrecoverable error, exit code 1

By the way, I tried removing -dSAFER from this second version: the output is the same, confirming that -dSAFER is indeed the gs default.

Bruno Voisin