From 95082693c3cae9a7f2b9cac9a2473ead4146c3c8 Mon Sep 17 00:00:00 2001
From: Damien George <damien@micropython.org>
Date: Tue, 21 Feb 2023 15:31:52 +1100
Subject: [PATCH] extmod/modbtree: Move system includes within MICROPY_PY_BTREE
 guard.

Since commit d6d87225585a9494093d791c807bce652e4c82d8, modbtree.c is
included unconditionally in the build (if SRC_EXTMOD_C is used).  So guard
the includes of system headers files in case a target doesn't have them.

Signed-off-by: Damien George <damien@micropython.org>
---
 extmod/modbtree.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/extmod/modbtree.c b/extmod/modbtree.c
index 2da65a2c7a..e9c760a389 100644
--- a/extmod/modbtree.c
+++ b/extmod/modbtree.c
@@ -24,16 +24,14 @@
  * THE SOFTWARE.
  */
 
-#include <stdio.h>
-#include <string.h>
-#include <errno.h> // for declaration of global errno variable
-#include <fcntl.h>
-
 #include "py/runtime.h"
 #include "py/stream.h"
 
 #if MICROPY_PY_BTREE
 
+#include <stdio.h>
+#include <errno.h> // for declaration of global errno variable
+#include <fcntl.h>
 #include <db.h>
 #include <../../btree/btree.h>