Fixing pdfx in TeX Live (maybe upgrade to 2025?)

From: Michael Gmelin <grembo_at_freebsd.org>
Date: Tue, 01 Apr 2025 10:15:18 UTC
Hi,

Currently pdfx is broken in TeX Live due to changes in latex. There is a
new version of pdfx out there that fixes the problem which I assume is
included in TeX Live 2025 - any chances to upgrade? Otherwise we could
also patch the existing version.

Until then, adding this to files acts as a workaround:

  \RequirePackage[2024-05-01]{latexrelease}

But this breaks other things, so it's not a real solution.

Thanks & Best
Michael

p.s. this is the error in question:

! LaTeX Error: Loading a class or package in a group.

p.p.s. for now I'm using the hack below, which could be the bare
minimum to include - I could open PR or patch myself.

--- share/texmf-dist/tex/latex/pdfx/pdfx.sty.orig       2025-04-01
10:13:02.158341000 +0000 +++ share/texmf-dist/tex/latex/pdfx/pdfx.sty
 2025-04-01 10:12:48.131257000 +0000 @@ -2740,10 +2740,10 @@
 %%  it should be loaded outside the grouping, else  biblatex  may barf
 %%
 \RequirePackage{ifthen}
+\RequirePackage{xmpincl}
 \begingroup
 %% override the \ifpdf  check of  xmpincl  package, inside the grouping
  \pdftrue
- \RequirePackage{xmpincl}
 %% combine coding from  xmpincl  and  hyperxml to support XeTeX
 \def\pdfx@xmpincl@xetex#1{%
  \IfFileExists{#1.xmp}{%


-- 
Michael Gmelin