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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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