include: Avoid duplicate definition of REFERENCE_TIME.

[Sebastian Lackner]

Signed-off-by: Sebastian Lackner <sebastian at fds-team.de>
---

Fixes https://bugs.winehq.org/show_bug.cgi?id=42211.

Most likely introduced by 5864ef417e25cb6152cacf5801ea58b980dd0396,
it wasn't present in rc4 yet.

 include/dmdls.h |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/dmdls.h b/include/dmdls.h
index b40ef88bf8d..ea7dcf00946 100644
--- a/include/dmdls.h
+++ b/include/dmdls.h
@@ -30,7 +30,10 @@ typedef LONG PCENT;
 typedef LONG PERCENT;
 typedef LONG TCENT;
 
+#ifndef REFERENCE_TIME_DEFINED
+#define REFERENCE_TIME_DEFINED
 typedef LONGLONG REFERENCE_TIME, *LPREFERENCE_TIME;
+#endif
 
 /*****************************************************************************
  * FOURCC definition
-- 
2.11.0