gnu: gnunet: Fix failing testcases.

* gnu/packages/gnunet.scm (gnurl): Add pkg-config.
* gnu/packages/patches/gnunet-fix-tests.patch: Append fix for integration testcases.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu/packages/gnunet.scm

@@ -153,8 +153,9 @@ (define-public gnurl
              ("libidn" ,libidn)
              ("zlib" ,zlib)))
    (native-inputs
-    `(("perl" ,perl)
-      ("groff" ,groff)
+    `(("groff" ,groff)
+      ("perl" ,perl)
+      ("pkg-config" ,pkg-config)
       ("python" ,python-2)))
    (arguments
     `(#:configure-flags '("--enable-ipv6" "--with-gnutls" "--without-libssh2"
@@ -211,7 +212,8 @@ (define-public gnunet
         (search-patch "gnunet-fix-scheduler.patch")
         ;; Patch to fix bugs in testcases:
         ;; * Disable peerinfo-tool tests as they depend on reverse DNS lookups
-        ;; * Allow revocation testcase to run on loopback; upstream: #32130
+        ;; * Allow revocation and integration-tests testcases to run on
+        ;;   loopback; upstream: #32130, #32326
         ;; * Skip GNS testcases requiring DNS lookups; upstream: #32118
         (search-patch "gnunet-fix-tests.patch")))
       (patch-flags '("-p0"))))

gnu/packages/patches/gnunet-fix-tests.patch

@@ -44,3 +44,15 @@ Index: src/gns/test_gns_cname_lookup.sh
  rm -rf /tmp/test-gnunet-gns-peer-1/
  
  TEST_DOMAIN_PLUS="www.gnu"
+Index: src/integration-tests/confs/test_defaults.conf
+===================================================================
+--- src/integration-tests/confs/test_defaults.conf	(revision 32320)
++++ src/integration-tests/confs/test_defaults.conf	(working copy)
+@@ -17,6 +17,7 @@
+ EXTERNAL_ADDRESS = 127.0.0.1
+ INTERNAL_ADDRESS = 127.0.0.1
+ BINDTO = 127.0.0.1
++RETURN_LOCAL_ADDRESSES = YES
+ 
+ [hostlist]
+ SERVERS =