From 72640f773a7160b445df8cc5214aaaa7b11c311a Mon Sep 17 00:00:00 2001
From: Nicolas Goaziou <mail@nicolasgoaziou.fr>
Date: Fri, 4 Aug 2023 12:27:53 +0200
Subject: [PATCH] gnu: Add texlive-texbytopic.

* gnu/packages/tex.scm (texlive-texbytopic): New variable.
---
 gnu/packages/tex.scm | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/gnu/packages/tex.scm b/gnu/packages/tex.scm
index bb0e6ee6df..3a0c8d3630 100644
--- a/gnu/packages/tex.scm
+++ b/gnu/packages/tex.scm
@@ -25527,6 +25527,26 @@ (define-public texlive-tex-vpat
 ITI VPAT(R) guidelines.")
     (license license:cc-by3.0)))
 
+(define-public texlive-texbytopic
+  (package
+    (name "texlive-texbytopic")
+    (version (number->string %texlive-revision))
+    (source (texlive-origin
+             name version
+             (list "doc/plain/texbytopic/")
+             (base32
+              "0pnh1hsd6k434c8i1xdjq3ywrwylmryrsl86d6h7i1cnmzz4pwlx")))
+    (outputs '("out" "doc"))
+    (build-system texlive-build-system)
+    (home-page "https://ctan.org/pkg/texbytopic")
+    (synopsis "@emph{TeX by Topic} book")
+    (description
+     "@emph{TeX by Topic} is a book originally published by Addison-Wesley.
+It describes itself as ``a TeXnician's reference'', and covers the way
+TeX (the engine) works in as much detail as most ordinary TeX programmers will
+ever need to know.")
+    (license license:fdl1.3+)))
+
 (define-public texlive-threeparttable
   (package
     (name "texlive-threeparttable")