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-rw-r--r--src/callproc.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/callproc.c b/src/callproc.c
index 82a5ebb90da..cd06ad5c2e8 100644
--- a/src/callproc.c
+++ b/src/callproc.c
@@ -1244,8 +1244,10 @@ child_setup (in, out, err, new_argv, set_pgrp, current_dir)
dup2 (out, 1);
dup2 (err, 2);
emacs_close (in);
- emacs_close (out);
- emacs_close (err);
+ if (out != in)
+ emacs_close (out);
+ if (err != in && err != out)
+ emacs_close (err);
#endif /* not MSDOS */
#endif /* not WINDOWSNT */