From 2bd51da5982fc7cb0d5d12d5fc6fcea8ae6710bc Mon Sep 17 00:00:00 2001
From: Vincenzo Mantova <xworld21@gmail.com>
Date: Mon, 14 Jun 2021 07:03:10 +0100
Subject: [PATCH] texlive: allow substitutes for texlive packages (#126458)

---
 pkgs/tools/typesetting/tex/texlive/default.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/tools/typesetting/tex/texlive/default.nix b/pkgs/tools/typesetting/tex/texlive/default.nix
index 4ba42cbce570..f7bd02d8af53 100644
--- a/pkgs/tools/typesetting/tex/texlive/default.nix
+++ b/pkgs/tools/typesetting/tex/texlive/default.nix
@@ -131,6 +131,7 @@ let
 
     in if sha512 == "" then
       # hash stripped from pkgs.nix to save space -> fetch&unpack in a single step
+      # currently unused as we prefer to keep the sha512 hashes for reproducibility
       fetchurl {
         inherit urls;
         sha1 = if fixedHash == null then throw "TeX Live package ${tlName} is missing hash!"
@@ -144,8 +145,7 @@ let
         // passthru
 
     else runCommand "texlive-${tlName}"
-      ( { # lots of derivations, not meant to be cached
-          preferLocalBuild = true; allowSubstitutes = false;
+      ( {
           inherit passthru;
         } // lib.optionalAttrs (fixedHash != null) {
           outputHash = fixedHash;