From 9de2f02af62ec9aa90202c53faf93e0ed43fc602 Mon Sep 17 00:00:00 2001
From: Vincenzo Mantova <1962985+xworld21@users.noreply.github.com>
Date: Sun, 18 Dec 2022 13:53:23 +0000
Subject: [PATCH] texlive.combine: remove unset TEXMCNF as mtxrun is already
 wrapped

---
 pkgs/tools/typesetting/tex/texlive/combine.nix | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/pkgs/tools/typesetting/tex/texlive/combine.nix b/pkgs/tools/typesetting/tex/texlive/combine.nix
index 759b2ba07226..4a341b55cc38 100644
--- a/pkgs/tools/typesetting/tex/texlive/combine.nix
+++ b/pkgs/tools/typesetting/tex/texlive/combine.nix
@@ -305,16 +305,10 @@ in (buildEnv {
     done
   '' +
   # MkIV uses its own lookup mechanism and we need to initialize
-  # caches for it. Unsetting TEXMFCNF is needed to let mtxrun
-  # determine it from kpathsea so that the config path is given with
-  # "selfautodir:" as it will be in runtime. This is important because
-  # the cache is identified by a hash of this path.
+  # caches for it.
   ''
     if [[ -e "$out/bin/mtxrun" ]]; then
-      (
-        unset TEXMFCNF
-        mtxrun --generate
-      )
+      mtxrun --generate
     fi
   ''
     + bin.cleanBrokenLinks +