bug#52333: [PATCH 1/2] gnu: python-nbconvert: Embed reference to texlive-bin, not texlive-union.

[Ricardo Wurmus <rekado@elephly.net>]

* gnu/packages/python-xyz.scm (python-nbconvert)[inputs]: Add texlive-bin.
[arguments]: Embed reference to xelatex and bibtex from the texlive-bin, not
the texlive-union.
---
 gnu/packages/python-xyz.scm | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/gnu/packages/python-xyz.scm b/gnu/packages/python-xyz.scm
index 81b99e1d2e..602833c4f4 100644
--- a/gnu/packages/python-xyz.scm
+++ b/gnu/packages/python-xyz.scm
@@ -12117,14 +12117,15 @@ (define-public python-nbconvert
      `(#:phases
        (modify-phases %standard-phases
          (add-after 'unpack 'fix-paths-and-tests
-           (lambda _
+           (lambda* (#:key inputs #:allow-other-keys)
              ;; Use pandoc binary from input.
              (substitute* "nbconvert/utils/pandoc.py"
                (("'pandoc'") (string-append "'" (which "pandoc") "'")))
              ;; Same for LaTeX.
-             (substitute* "nbconvert/exporters/pdf.py"
-               (("\"xelatex\"") (string-append "\"" (which "xelatex") "\""))
-               (("\"bibtex\"") (string-append "\"" (which "bibtex") "\"")))
+             (let ((texlive (assoc-ref inputs "texlive-bin")))
+               (substitute* "nbconvert/exporters/pdf.py"
+                 (("\"xelatex\"") (string-append "\"" texlive "/bin/xelatex\""))
+                 (("\"bibtex\"") (string-append "\"" texlive "/bin/bibtex\""))))
              ;; Make sure tests are not skipped.
              (substitute* (find-files "." "test_.+\\.py$")
                (("@onlyif_cmds_exist\\(('(pandoc|xelatex)'(, )?)+\\)") ""))
@@ -12158,6 +12159,7 @@ (define-public python-nbconvert
                (invoke "pytest" "-vv")))))))
     (inputs
      `(("pandoc" ,pandoc)
+       ("texlive-bin" ,texlive-bin)
        ;; XXX: Disabled, needs substitute*.
        ;;("inkscape" ,inkscape)
        ))
-- 
2.34.0