fcntl receiving -1 from fileno, fcntl failing.

[perl5.git] / dist / threads / threads.xs

diff --git a/dist/threads/threads.xs b/dist/threads/threads.xs
index b3e10f0..182cd37 100644 (file)
--- a/dist/threads/threads.xs
+++ b/dist/threads/threads.xs
@@ -714,8 +714,11 @@ S_ithread_create(
     PERL_SET_CONTEXT(aTHX);
     if (!thread) {
         MUTEX_UNLOCK(&MY_POOL.create_destruct_mutex);
-        (void)PerlLIO_write(PerlIO_fileno(Perl_error_log),
-                            PL_no_mem, strlen(PL_no_mem));
+        int fd = PerlIO_fileno(Perl_error_log);
+        if (fd >= 0) {
+          /* If there's no error_log, we cannot scream about it missing. */
+          PERL_UNUSED_RESULT(PerlLIO_write(fd, PL_no_mem, strlen(PL_no_mem)));
+        }
         my_exit(1);
     }
     Zero(thread, 1, ithread);