Using "Filtered View" gives error "Cannot create pipe streams"

[Ben Woods]

Hi,

I am maintaining the midnight commander port for FreeBSD, and I am seeing
an error with v4.8.14.

When I use the "Filtered View" option from the File menu, and enter any
filter (e.g. "*.c"), it gives me an error message "Cannot create pipe
streams".

This error appears to be from the function mc_popen in file lib/utilunix.c
(excerpt below). Any ideas how I can troubleshoot this further?

Thanks in advance,
Ben

/**
 * Create pipe and run child process.
 *
 * @parameter command command line of child process
 * @paremeter error contains pointer to object to handle error code and
message
 *
 * @return newly created object of mc_pipe_t class in success, NULL
otherwise
 */

mc_pipe_t *
mc_popen (const char *command, GError ** error)
{
    mc_pipe_t *p;
    char **argv;

    p = g_try_new (mc_pipe_t, 1);
    if (p == NULL)
    {
        mc_replace_error (error, MC_PIPE_ERROR_CREATE_PIPE, "%s",
                          _("Cannot create pipe descriptor"));
        goto ret_err;
    }

    if (!g_shell_parse_argv (command, NULL, &argv, error))
    {
        mc_replace_error (error, MC_PIPE_ERROR_PARSE_COMMAND, "%s",
                          _("Cannot parse command for pipe"));
        goto ret_err;
    }

    if (!g_spawn_async_with_pipes (NULL, argv, NULL,
G_SPAWN_DO_NOT_REAP_CHILD, NULL, NULL,
                                   &p->child_pid, NULL, &p->out.fd,
&p->err.fd, error))
    {
        mc_replace_error (error, MC_PIPE_ERROR_CREATE_PIPE_STREAM, "%s",
                          _("Cannot create pipe streams"));
        goto ret_err;
    }
...
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