Stripes broken once passed through ps2pdf

Hello,

Consider this illustration:

--8<---------------cut here---------------start------------->8---
@SysInclude { picture }
@SysInclude { diag }

@Illustration {
  @Box paint { black }
       texture { striped angle { 45d } width { 1c } gap { 1c } } {
    21c @Wide 29.7c @High
  }
}
--8<---------------cut here---------------end--------------->8---

The resulting EPS file is OK.

However, when passed through TeXLive’s ‘epstopdf’ or the ‘ps2pdf’
program of GNU Ghostcript 8.71.1, the resulting PDF has little in common
with the EPS (see attached file.)

It could be a Ghostscript bug, but I’m unsure.  Ideas?

Thanks,
Ludo’.