gnu: Add texlive-latex-beamer.

* gnu/packages/tex.scm (texlive-latex-beamer): New variable.

gnu/packages/tex.scm

@@ -5811,3 +5811,68 @@ for use with LaTeX is available in @code{freenfss}, part of
 supports advanced interactive documents.  See the ConTeXt garden for a wealth
 of support information.")
     (license license:gpl2+)))
+
+(define-public texlive-latex-beamer
+  (package
+    (name "texlive-latex-beamer")
+    (version (number->string %texlive-revision))
+    (source (origin
+              (method svn-fetch)
+              (uri (svn-reference
+                    (url (string-append "svn://www.tug.org/texlive/tags/"
+                                        %texlive-tag "/Master/texmf-dist/"
+                                        "/tex/latex/beamer"))
+                    (revision %texlive-revision)))
+              (file-name (string-append name "-" version "-checkout"))
+              (sha256
+               (base32
+                "09y3qwbj0nckshvg9afgwcv9v3zdif1d7bnpzrggsa1fbr80mgk2"))))
+    (build-system trivial-build-system)
+    (outputs '("out" "doc"))
+    (arguments
+     `(#:modules ((guix build utils))
+       #:builder
+       (begin
+         (use-modules (guix build utils))
+         (let ((target (string-append (assoc-ref %outputs "out")
+                                      "/share/texmf-dist/tex/latex/beamer"))
+               (docs   (string-append (assoc-ref %outputs "doc")
+                                      "/share/texmf-dist/doc/latex/beamer/")))
+           (mkdir-p target)
+           (copy-recursively (assoc-ref %build-inputs "source") target)
+
+           (mkdir-p docs)
+           (copy-recursively (assoc-ref %build-inputs "docs") docs)
+           #t))))
+    (propagated-inputs
+     `(("texlive-latex-hyperref" ,texlive-latex-hyperref)
+       ("texlive-latex-oberdiek" ,texlive-latex-oberdiek)
+       ("texlive-latex-etoolbox" ,texlive-latex-etoolbox)
+       ("texlive-latex-pgf" ,texlive-latex-pgf)))
+    (native-inputs
+     `(("docs"
+        ,(origin
+           (method svn-fetch)
+           (uri (svn-reference
+                 (url (string-append "svn://www.tug.org/texlive/tags/"
+                                     %texlive-tag "/Master/texmf-dist/"
+                                     "/doc/latex/beamer"))
+                 (revision %texlive-revision)))
+           (file-name (string-append name "-" version "-checkout"))
+           (sha256
+            (base32
+             "102b18b9nw9dicqqgjwx0srh1mav8vh9wdvwayn741niza9hac23"))))))
+    (home-page "https://www.ctan.org/pkg/beamer")
+    (synopsis "LaTeX class for producing presentations and slides")
+    (description "The beamer LaTeX class can be used for producing slides.
+The class works in both PostScript and direct PDF output modes, using the
+@code{pgf} graphics system for visual effects.  Content is created in the
+@code{frame} environment, and each frame can be made up of a number of slides
+using a simple notation for specifying material to appear on each slide within
+a frame.  Short versions of title, authors, institute can also be specified as
+optional parameters.  Whole frame graphics are supported by plain frames.  The
+class supports @code{figure} and @code{table} environments, transparency
+effects, varying slide transitions and animations.")
+    ;; Code is dual licensed under GPLv2+ or LPPL1.3c+; documentation is
+    ;; dual-licensed under either FDLv1.3+ or LPPL1.3c+.
+    (license (list license:lppl1.3c+ license:gpl2+ license:fdl1.3+))))