Fix <https://issues.guix.gnu.org/61095>, which affects GNU/Hurd.

diff --git a/libguile/posix.c b/libguile/posix.c
index 3a8be94e4..f5fdc544c 100644
--- a/libguile/posix.c
+++ b/libguile/posix.c
@@ -1326,7 +1326,14 @@ static void
 close_inherited_fds_slow (posix_spawn_file_actions_t *actions, int max_fd)
 {
   while (--max_fd > 2)
-    posix_spawn_file_actions_addclose (actions, max_fd);
+    {
+      /* Adding invalid file descriptors to an 'addclose' action leads
+         to 'posix_spawn' failures on some operating systems:
+         <https://bugs.gnu.org/61095>.  Hence the extra check.  */
+      int flags = fcntl (max_fd, F_GETFD, NULL);
+      if ((flags >= 0) && ((flags & FD_CLOEXEC) == 0))
+        posix_spawn_file_actions_addclose (actions, max_fd);
+    }
 }
 
 static void

Fix <https://issues.guix.gnu.org/62501>.

diff --git a/test-suite/tests/posix.test b/test-suite/tests/posix.test
index f20e04453..d5cf47cda 100644
--- a/test-suite/tests/posix.test
+++ b/test-suite/tests/posix.test
@@ -431,7 +431,13 @@
       (let ((str (get-string-all (car input+output))))
         (close-port (car input+output))
         (waitpid pid)
-        str)))
+
+        ;; On GNU/Hurd, the exec server prepends 'LD_ORIGIN_PATH' for
+        ;; every program: <https://bugs.gnu.org/62501>.  Strip it.
+        (if (and (string=? "GNU" (utsname:sysname (uname)))
+                 (string-prefix? "LD_ORIGIN_PATH=" str))
+            (string-drop str (+ 1 (string-index str #\newline)))
+            str))))
 
   (pass-if-equal "ls /proc/self/fd"
       "0\n1\n2\n3\n"                     ;fourth FD is for /proc/self/fd
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<div class='path'>path: <a href='/guix/log/?id=66be2df8411a876b0fd306c8789519349c69bd0e'>root</a>/<a href='/guix/log/m4?id=66be2df8411a876b0fd306c8789519349c69bd0e'>m4</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/m4?id=66be2df8411a876b0fd306c8789519349c69bd0e&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2024-12-12 23:23:33 +0100'>2024-12-12</span></td><td><a href='/guix/commit/m4?id=b8a45bd0473ab2ba9b96b7ef429a557ece9bf06c'>build: Fix detection of guile-ssh.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;https://issues.guix.gnu.org/74800&gt;.

The check for make-session stopped working after update to 0.18.0.  This
commit adds the additional `#:config #f' to skip reading the ssh
configuration, arguably we did not want to do that anyway.

* m4/guix.m4 (GUIX_CHECK_GUILE_SSH): Add `#:config #f' to make-session call.

Change-Id: Id6ea3860292159ac2e6cf2a77df5f720f66aa071
Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
Reported-by: Dariqq &lt;dariqq@posteo.net&gt;
</span></span></td><td>Tomas Volf</td></tr>
<tr><td><span title='2024-12-03 08:38:00 +0100'>2024-12-03</span></td><td><a href='/guix/commit/m4?id=4d9c5984fee481d74c2f504094b4797bbb4104d4'>gnu: bootstrap: Add support for x86_64-gnu, aka the 64bit Hurd.</a><span class='msg-avail'>...<span class='msg-tooltip'>On commit:
    ec8a5ec15f898e864705e5a5c834532e3fa8d0a4
    gnu: make-bootstrap: Update gcc-static to gcc-14, for the 64bit Hurd.

Run:
    ./pre-inst-env guix build --target=x86_64-gnu bootstrap-tarballs

Producing:
    /gnu/store/w1n7bdpn88plcc49h7n0jriaj41sgwx8-bootstrap-tarballs-0/

With guix hash -r:
    15cb1xh7s2hhp8s0d81bjnw1759w9sh7ckc9n5jq2f3rqw6z76by

* gnu/packages/bootstrap.scm (%bootstrap-executables): Add entries for
x86_64-gnu.
(%bootstrap-guile-hash, %bootstrap-coreutils&amp;co, %bootstrap-binutils,
%bootstrap-glibc, %bootstrap-gcc): Add entry for x86_64-gnu.
* guix/packages.scm (%supported-systems, %hurd-systems): Add x86_64-gnu.
(%cuirass-supported-systems): Remove x86_64-gnu.
* guix/utils.scm (target-64bit?): Add x86_64-gnu.
* m4/guix.m4: Add x86_64-gnu as a supported system.
* doc/guix.texi (GNU Distribution): Add x86_64-gnu.

Change-Id: I828159aedb3f66caba98e935083cc3682429f219
</span></span></td><td>Janneke Nieuwenhuizen</td></tr>