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-rw-r--r--release.nix3
1 files changed, 3 insertions, 0 deletions
diff --git a/release.nix b/release.nix
index c02a5fa93063..39d6b0c6ba8a 100644
--- a/release.nix
+++ b/release.nix
@@ -47,6 +47,9 @@ let
 
           stripHash ${bzip2.src}
           cp -pv ${bzip2.src} externals/$strippedName
+
+          # TeX needs a writable font cache.
+          export VARTEXFONTS=$TMPDIR/texfonts
         '';
 
         preDist = ''