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-rw-r--r--windows/realpath.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/windows/realpath.h b/windows/realpath.h
index 6f0a29a7e..c7bb3acd7 100644
--- a/windows/realpath.h
+++ b/windows/realpath.h
@@ -23,5 +23,9 @@
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
+#ifndef MICROPY_INCLUDED_WINDOWS_REALPATH_H
+#define MICROPY_INCLUDED_WINDOWS_REALPATH_H
extern char *realpath(const char *path, char *resolved_path);
+
+#endif // MICROPY_INCLUDED_WINDOWS_REALPATH_H