gnu: guile-ssh: Update to 0.11.2.

* gnu/packages/ssh.scm (guile-ssh): Update to 0.11.2.
[source]: Remove 'patches', 'modules', and 'snippet'.
* gnu/packages/patches/guile-ssh-channel-finalization.patch,
gnu/packages/patches/guile-ssh-double-free.patch,
gnu/packages/patches/guile-ssh-rexec-bug.patch: Remove.
* gnu/local.mk (dist_patch_DATA): Remove them.

gnu/local.mk

@@ -675,9 +675,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/guile-present-coding.patch		\
   %D%/packages/patches/guile-relocatable.patch			\
   %D%/packages/patches/guile-rsvg-pkgconfig.patch		\
-  %D%/packages/patches/guile-ssh-channel-finalization.patch	\
-  %D%/packages/patches/guile-ssh-double-free.patch		\
-  %D%/packages/patches/guile-ssh-rexec-bug.patch		\
   %D%/packages/patches/gtk2-respect-GUIX_GTK2_PATH.patch	\
   %D%/packages/patches/gtk2-respect-GUIX_GTK2_IM_MODULE_FILE.patch \
   %D%/packages/patches/gtk2-theme-paths.patch			\

gnu/packages/patches/guile-ssh-channel-finalization.patch

@@ -1,28 +0,0 @@
-Avoid asynchronous channel finalization, which could lead to segfaults due to
-libssh not being thread-safe: <https://bugs.gnu.org/26976>.
-
---- guile-ssh-0.11.0/modules/ssh/dist/node.scm	2017-06-13 14:37:44.861671297 +0200
-+++ guile-ssh-0.11.0/modules/ssh/dist/node.scm	2017-06-13 14:38:02.841580565 +0200
-@@ -391,11 +391,18 @@ listens on an expected port, return #f o
-   "Evaluate QUOTED-EXP on the node and return the evaluated result."
-   (let ((repl-channel (node-open-rrepl node)))
-     (rrepl-skip-to-prompt repl-channel)
--    (call-with-values (lambda () (rrepl-eval repl-channel quoted-exp))
--      (lambda vals
--        (and (node-stop-repl-server? node)
-+    (dynamic-wind
-+      (const #t)
-+      (lambda ()
-+        (rrepl-eval repl-channel quoted-exp))
-+      (lambda ()
-+        (when (node-stop-repl-server? node)
-              (node-stop-server node))
--        (apply values vals)))))
-+
-+        ;; Close REPL-CHANNEL right away to prevent finalization from
-+        ;; happening in another thread at the wrong time (see
-+        ;; <https://bugs.gnu.org/26976>.)
-+        (close-port repl-channel)))))
- 
- (define (node-eval-1 node quoted-exp)
-   "Evaluate QUOTED-EXP on the node and return the evaluated result.  The

gnu/packages/patches/guile-ssh-double-free.patch

@@ -1,37 +0,0 @@
-Fix a double-free or use-after-free issue with Guile-SSH used
-with Guile 2.2.  See <https://bugs.gnu.org/26976>.
-
-diff --git a/libguile-ssh/channel-type.c b/libguile-ssh/channel-type.c
-index 3dd641f..0839854 100644
---- a/libguile-ssh/channel-type.c
-+++ b/libguile-ssh/channel-type.c
-@@ -229,10 +229,11 @@ ptob_close (SCM channel)
-       ssh_channel_free (ch->ssh_channel);
-     }
- 
-+  SCM_SETSTREAM (channel, NULL);
-+
- #if USING_GUILE_BEFORE_2_2
-   scm_gc_free (pt->write_buf, pt->write_buf_size, "port write buffer");
-   scm_gc_free (pt->read_buf,  pt->read_buf_size, "port read buffer");
--  SCM_SETSTREAM (channel, NULL);
- 
-   return 0;
- #endif
-diff --git a/libguile-ssh/sftp-file-type.c b/libguile-ssh/sftp-file-type.c
-index 8879924..f87cf03 100644
---- a/libguile-ssh/sftp-file-type.c
-+++ b/libguile-ssh/sftp-file-type.c
-@@ -224,10 +224,11 @@ ptob_close (SCM sftp_file)
-       sftp_close (fd->file);
-     }
- 
-+  SCM_SETSTREAM (sftp_file, NULL);
-+
- #if USING_GUILE_BEFORE_2_2
-   scm_gc_free (pt->write_buf, pt->write_buf_size, "port write buffer");
-   scm_gc_free (pt->read_buf,  pt->read_buf_size, "port read buffer");
--  SCM_SETSTREAM (sftp_file, NULL);
- 
-   return 1;
- #endif

gnu/packages/patches/guile-ssh-rexec-bug.patch

@@ -1,16 +0,0 @@
-Fix a bug whereby 'node-guile-version' would pass a node instead of
-a session to 'rexec'.
-
-diff --git a/modules/ssh/dist/node.scm b/modules/ssh/dist/node.scm
-index 9c065c7..29a3906 100644
---- a/modules/ssh/dist/node.scm
-+++ b/modules/ssh/dist/node.scm
-@@ -411,7 +411,8 @@ procedure returns the 1st evaluated value if multiple values were returned."
-   "Get Guile version installed on a NODE, return the version string.  Return
- #f if Guile is not installed."
-   (receive (result rc)
--      (rexec node "which guile > /dev/null && guile --version")
-+      (rexec (node-session node)
-+             "which guile > /dev/null && guile --version")
-     (and (zero? rc)
-          (car result))))

gnu/packages/ssh.scm

@@ -215,7 +215,7 @@ Additionally, various channel-specific options can be negotiated.")
 (define-public guile-ssh
   (package
     (name "guile-ssh")
-    (version "0.11.0")
+    (version "0.11.2")
     (home-page "https://github.com/artyom-poptsov/guile-ssh")
     (source (origin
               ;; ftp://memory-heap.org/software/guile-ssh/guile-ssh-VERSION.tar.gz
@@ -227,19 +227,7 @@ Additionally, various channel-specific options can be negotiated.")
               (file-name (string-append name "-" version ".tar.gz"))
               (sha256
                (base32
-                "0r261i8kc3avbmbwgyzak2vnqwssjlgz37g2y2fwm80w9bmn2m7j"))
-              (patches (search-patches "guile-ssh-rexec-bug.patch"
-                                       "guile-ssh-double-free.patch"
-                                       "guile-ssh-channel-finalization.patch"))
-              (modules '((guix build utils)))
-              (snippet
-               ;; 'configure.ac' mistakenly tries to link files from examples/
-               ;; that are not instantiated yet.  Work around it.
-               '(substitute* "configure.ac"
-                  (("AC_CONFIG_LINKS\\(\\[examples/([^:]+):.*" _ file)
-                   (string-append "AC_CONFIG_FILES([examples/" file
-                                  "], [chmod +x examples/"
-                                  file "])\n"))))))
+                "1w0k5s09xj5xycb7lbp5b7rm0xncclms3jwl98lwj8fxwngi1s90"))))
     (build-system gnu-build-system)
     (outputs '("out" "debug"))
     (arguments