gnu: fbreader: Fix building with newer curl.

* gnu/packages/ebook.scm (fbreader)[source]: Add patch.
* gnu/packages/patches/fbreader-curl-7.62.patch: New file.
* gnu/local.mk (dist_patch_DATA): Register it.

gnu/local.mk

@@ -685,6 +685,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/fasthenry-spUtils.patch			\
   %D%/packages/patches/fasthenry-spSolve.patch			\
   %D%/packages/patches/fasthenry-spFactor.patch			\
+  %D%/packages/patches/fbreader-curl-7.62.patch		\
   %D%/packages/patches/fcgi-2.4.0-gcc44-fixes.patch		\
   %D%/packages/patches/fcgi-2.4.0-poll.patch			\
   %D%/packages/patches/fifo-map-fix-flags-for-gcc.patch		\

gnu/packages/ebook.scm

@@ -1,6 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2015, 2016 Andreas Enge <andreas@enge.fr>
-;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2016, 2018 Efraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016, 2017 Alex Griffin <a@ajgrf.com>
 ;;; Copyright © 2017 Brendan Tildesley <brendan.tildesley@openmailbox.org>
 ;;; Copyright © 2017 Roel Janssen <roel@gnu.org>
@@ -247,7 +247,8 @@ designed to be used in a generic text renderer.")
               (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                (base32
-                "0gf1nl562fqkwlzcn6rgkp1j8jcixzmfsnwxbc0sm49zh8n3zqib"))))
+                "0gf1nl562fqkwlzcn6rgkp1j8jcixzmfsnwxbc0sm49zh8n3zqib"))
+              (patches (search-patches "fbreader-curl-7.62.patch"))))
     (build-system gnu-build-system)
     (inputs
      `(("curl" ,curl)

gnu/packages/patches/fbreader-curl-7.62.patch

@@ -0,0 +1,30 @@
+https://github.com/geometer/FBReader/commit/b7c78e965d06f78043a57e230c866c3af3f5a1eb.patch
+https://github.com/geometer/FBReader/issues/310
+https://github.com/geometer/FBReader/pull/311/commits
+
+From b7c78e965d06f78043a57e230c866c3af3f5a1eb Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Vladim=C3=ADr=20=C4=8Cun=C3=A1t?= <vcunat@gmail.com>
+Date: Sun, 9 Dec 2018 10:18:03 +0100
+Subject: [PATCH] fix compatibility with curl-7.62
+
+https://github.com/curl/curl/commit/3f3b26d6fe
+---
+ zlibrary/core/src/unix/curl/ZLCurlNetworkManager.cpp | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/zlibrary/core/src/unix/curl/ZLCurlNetworkManager.cpp b/zlibrary/core/src/unix/curl/ZLCurlNetworkManager.cpp
+index 54cc37f6c..03e2a5721 100644
+--- a/zlibrary/core/src/unix/curl/ZLCurlNetworkManager.cpp
++++ b/zlibrary/core/src/unix/curl/ZLCurlNetworkManager.cpp
+@@ -285,9 +285,11 @@ std::string ZLCurlNetworkManager::perform(const ZLExecutionData::Vector &dataLis
+ #endif
+ 					errors.insert(ZLStringUtil::printf(errorResource["peerFailedVerificationMessage"].value(), ZLNetworkUtil::hostFromUrl(url)));
+ 					break;
++#if LIBCURL_VERSION_NUM < 0x073e00
+ 				case CURLE_SSL_CACERT:
+ 					errors.insert(ZLStringUtil::printf(errorResource["sslCertificateAuthorityMessage"].value(), ZLNetworkUtil::hostFromUrl(url)));
+ 					break;
++#endif
+ 				case CURLE_SSL_CACERT_BADFILE:
+ 					errors.insert(ZLStringUtil::printf(errorResource["sslBadCertificateFileMessage"].value(), request.sslCertificate().Path));
+ 					break;