MinGW compilation warning in spawn-pipe.c

[Bruno Haible]

}
#define close nonintr_close
IMO, it should use #undef before redefining 'close'.

Yup. The file lib/pipe-filter-aux.h already contains this fix, but
lib/spawn-pipe.c doesn't.


2018-05-12 Bruno Haible <***@clisp.org>

execute, spawn-pipe: Avoid warning about redefining 'close'.
Reported by Eli Zaretskii <***@gnu.org>.
* lib/execute.c: Undefine 'close' before redefining it.
* lib/spawn-pipe.c: Likewise.

diff --git a/lib/execute.c b/lib/execute.c
index 4532661..1194dd6 100644
--- a/lib/execute.c
+++ b/lib/execute.c
@@ -66,6 +66,7 @@ nonintr_close (int fd)

return retval;
}
+#undef close /* avoid warning related to gnulib module unistd */
#define close nonintr_close

static int
diff --git a/lib/spawn-pipe.c b/lib/spawn-pipe.c
index 716c54a..ec9bd9d 100644
--- a/lib/spawn-pipe.c
+++ b/lib/spawn-pipe.c
@@ -71,6 +71,7 @@ nonintr_close (int fd)

return retval;
}
+#undef close /* avoid warning related to gnulib module unistd */
#define close nonintr_close

#if defined _WIN32 && ! defined __CYGWIN__