gnu: Add texlive-selectp.

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

gnu/packages/tex.scm

@@ -94968,6 +94968,25 @@ (define-public texlive-seealso
 page numbers are present in the actual index entries.")
     (license license:lppl1.3+)))
 
+(define-public texlive-selectp
+  (package
+    (name "texlive-selectp")
+    (version (number->string %texlive-revision))
+    (source (texlive-origin
+             name version
+             (list "doc/latex/selectp/" "tex/latex/selectp/")
+             (base32
+              "1j1i4d5ira8kiqxl24pvlzic8fvvl5zlmsm6wy7hk6z37wp4jmc7")))
+    (outputs '("out" "doc"))
+    (build-system texlive-build-system)
+    (home-page "https://ctan.org/pkg/selectp")
+    (synopsis "Select pages to be output")
+    (description
+     "This package defines a command @code{\\outputonly}, whose argument is a list
+of pages to be output.  With the command present in the header, only those
+pages are output.")
+    (license license:public-domain)))
+
 ;;;
 ;;; Avoid adding new packages to the end of this file. To reduce the chances
 ;;; of a merge conflict, place them above by existing packages with similar