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-rw-r--r--gnu/packages/tex.scm2
1 files changed, 2 insertions, 0 deletions
diff --git a/gnu/packages/tex.scm b/gnu/packages/tex.scm
index 1416a00251..266e42d5aa 100644
--- a/gnu/packages/tex.scm
+++ b/gnu/packages/tex.scm
@@ -760,6 +760,8 @@ symbol fonts.")
            (lambda* (#:key inputs #:allow-other-keys)
              (let ((mf (assoc-ref inputs "texlive-metafont-base"))
                    (cwd (getcwd)))
+               ;; Make METAFONT reproducible
+               (setenv "SOURCE_DATE_EPOCH" "1")
                ;; Tell mf where to find mf.base
                (setenv "MFBASES" (string-append mf "/share/texmf-dist/web2c"))
                ;; Tell mf where to look for source files