Fix last change

At least on MS-Windows, the last change caused the
process-tests/fd-setsize-no-crash/make-process test to hang.
* src/process.c (wait_reading_process_output) [WINDOWSNT]: Do
not stop monitoring the process descriptor when zero bytes are
read.  The EOF indication from subprocesses on MS-Windows is
detected via an error condition (see w32.c), while zero-size
reads are not to be taken as such.  (Bug#79436)

1 files changed, 4 insertions, 0 deletions

diff --git a/src/process.c b/src/process.c
index bd128311033..86e83e58c56 100644
--- a/src/process.c
+++ b/src/process.c
@@ -6054,7 +6054,11 @@ wait_reading_process_output (intmax_t time_limit, int nsecs, int read_kbd,
                  process gone just because its pipe is closed.  */
               else if (nread == 0 && !NETCONN_P (proc) && !SERIALCONN_P (proc)
                        && !PIPECONN_P (proc))
+#ifdef WINDOWSNT
+                ;
+#else
                 delete_read_fd (channel);
+#endif
               else if (nread == 0 && PIPECONN_P (proc))
                 {
                   /* Preserve status of processes already terminated.  */