gnu: jbig2dec: Update to 0.13.

* gnu/packages/image.scm (jbig2dec): Update to 0.13.
[source]: Update URL.
[home-page]: Update URL.
* gnu/packages/patches/jbig2dec-ignore-testtest.patch: Adjust patch.

gnu/packages/image.scm

@@ -351,15 +351,14 @@ (define-public leptonica
 (define-public jbig2dec
   (package
     (name "jbig2dec")
-    (version "0.11")
+    (version "0.13")
     (source
       (origin
         (method url-fetch)
-        (uri             ;; The link on the homepage is dead.
-          (string-append "http://distfiles.gentoo.org/distfiles/" name "-"
-                          version ".tar.gz"))
+        (uri (string-append "http://downloads.ghostscript.com/public/" name "/"
+                            name "-" version ".tar.gz"))
         (sha256
-          (base32 "1ffhgmf2fqzk0h4k736pp06z7q5y4x41fg844bd6a9vgncq86bby"))
+          (base32 "04akiwab8iy5iy34razcvh9mcja9wy737civ3sbjxk4j143s1b2s"))
         (patches (search-patches "jbig2dec-ignore-testtest.patch"))))
 
     (build-system gnu-build-system)
@@ -374,7 +373,7 @@ (define-public jbig2dec
 stage, meaning it doesn't completely work yet.  However, it is
 maintaining parity with available encoders, so it is useful for real
 work.")
-    (home-page "http://jbig2dec.sourceforge.net/")
+    (home-page "http://www.ghostscript.com/jbig2dec.html")
     (license license:gpl2+)))
 
 (define-public openjpeg

gnu/packages/patches/jbig2dec-ignore-testtest.patch

@@ -1,14 +1,16 @@
 Do not run the "testtest script", it doesn't seem to do anything and reports
 failiute. TODO: Actually fix the test instead of ignoring it.
 
---- a/Makefile.in	2010-02-02 20:13:56.000000000 +0100
-+++ b/Makefile.in	2014-09-13 17:50:10.957816767 +0200
-@@ -181,7 +181,7 @@
- 
- MAINTAINERCLEANFILES = config_types.h.in
- 
--TESTS = test_sha1 test_jbig2dec.py test_huffman test_arith
-+TESTS = test_sha1 test_huffman test_arith
- 
- test_sha1_SOURCES = sha1.c sha1.h
- test_sha1_CFLAGS = -DTEST
+diff --git a/Makefile.in b/Makefile.in
+index 0573592..1a5de77 100644
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -93,7 +93,7 @@ host_triplet = @host@
+ bin_PROGRAMS = jbig2dec$(EXEEXT)
+ noinst_PROGRAMS = test_sha1$(EXEEXT) test_huffman$(EXEEXT) \
+ 	test_arith$(EXEEXT)
+-TESTS = test_sha1$(EXEEXT) test_jbig2dec.py test_huffman$(EXEEXT) \
++TESTS = test_sha1$(EXEEXT) test_huffman$(EXEEXT) \
+ 	test_arith$(EXEEXT)
+ subdir = .
+ ACLOCAL_M4 = $(top_srcdir)/aclocal.m4