gnu: reposurgeon: Update to 3.43.

* gnu/packages/version-control.scm (reposurgeon): Update to 3.43.
[source]: Add a patch needed to build the package.
[arguments]: Add ‘patch-inputs’ phase.
[native-inputs]: Replace docbook-xml-4.1.2 with the latest docbook-xml.
[inputs]: Add tzdata.
* gnu/packages/patches/reposurgeon-add-missing-docbook-files.patch:
New file.
* gnu/local.mk (dist_patch_DATA): Add it.

gnu/local.mk

@@ -1058,6 +1058,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/readline-link-ncurses.patch		\
   %D%/packages/patches/readline-6.2-CVE-2014-2524.patch		\
   %D%/packages/patches/readline-7.0-mingw.patch			\
+  %D%/packages/patches/reposurgeon-add-missing-docbook-files.patch	\
   %D%/packages/patches/reptyr-fix-gcc-7.patch			\
   %D%/packages/patches/ripperx-missing-file.patch		\
   %D%/packages/patches/rpcbind-CVE-2017-8779.patch		\

gnu/packages/patches/reposurgeon-add-missing-docbook-files.patch

@@ -0,0 +1,22 @@
+Author: Tobias Geerinckx-Rice <me@tobias.gr>
+Upstream issue: <https://gitlab.com/esr/reposurgeon/merge_requests/101>
+
+Two files required to build the documentation (including man pages) are
+not included in the latest reposurgeon release, breaking ‘make all’.
+
+Luckily, they are tiny:
+
+--- a/docbook-extra.xml	1970-01-01 01:00:00.000000000 +0100
++++ b/docbook-extra.xml	2018-01-25 00:17:18.236727017 +0100
+@@ -0,0 +1,5 @@
++<?xml version='1.0'?>
++<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
++<xsl:param name="variablelist.term.separator"></xsl:param>
++<xsl:param name="variablelist.term.break.after">1</xsl:param>
++</xsl:stylesheet>
+diff -Naur reposurgeon-3.43/nofooter.conf reposurgeon-3.43-b/nofooter.conf
+--- a/nofooter.conf	1970-01-01 01:00:00.000000000 +0100
++++ b/nofooter.conf	2018-01-25 00:23:15.384498847 +0100
+@@ -0,0 +1,2 @@
++[footer-text]
++ 

gnu/packages/version-control.scm

@@ -11,7 +11,7 @@
 ;;; Copyright © 2015, 2017 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2016, 2017 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2016, 2017, 2018 ng0 <ng0@n0.is>
-;;; Copyright © 2017 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2017 Vasile Dumitrascu <va511e@yahoo.com>
 ;;; Copyright © 2017 Clément Lassieur <clement@lassieur.org>
 ;;; Copyright © 2017 André <eu@euandre.org>
@@ -1318,14 +1318,16 @@ (define-public aegis
 (define-public reposurgeon
   (package
     (name "reposurgeon")
-    (version "3.37")
+    (version "3.43")
     (source (origin
               (method url-fetch)
               (uri (string-append "http://www.catb.org/~esr/" name "/"
                                   name "-" version ".tar.xz"))
               (sha256
                (base32
-                "14asjg4xy3mhh5z0r3k7c1wv9y803j2zfq32g5q5m95sf7yzygan"))))
+                "1af0z14wcm4bk5a9ysinbwq2fp3lf5f7i8mvwh7286hr3fnagcaz"))
+              (patches (search-patches
+                        "reposurgeon-add-missing-docbook-files.patch"))))
     (build-system gnu-build-system)
     (arguments
      `(#:tests? #f                      ;no test suite distributed
@@ -1333,6 +1335,13 @@ (define-public reposurgeon
        (list (string-append "target=" (assoc-ref %outputs "out")))
        #:phases
        (modify-phases %standard-phases
+         (add-after 'unpack 'patch-inputs
+           (lambda* (#:key inputs #:allow-other-keys)
+             (let ((tzdata (assoc-ref inputs "tzdata")))
+               (substitute* "reposurgeon"
+                 (("/usr/share/zoneinfo")
+                  (string-append tzdata "/share/zoneinfo")))
+               #t)))
          (delete 'configure)
          (add-before 'build 'fix-docbook
            (lambda* (#:key inputs #:allow-other-keys)
@@ -1347,10 +1356,11 @@ (define-public reposurgeon
                            (string-append (assoc-ref outputs "out")
                                           "/share/emacs/site-lisp")))))))
     (inputs
-     `(("python" ,python-wrapper)))
+     `(("python" ,python-wrapper)
+       ("tzdata" ,tzdata)))
     (native-inputs
      `(("asciidoc" ,asciidoc)
-       ("docbook-xml" ,docbook-xml-4.1.2)
+       ("docbook-xml" ,docbook-xml)
        ("docbook-xsl" ,docbook-xsl)
        ("libxml2" ,libxml2)
        ("xmlto" ,xmlto)))