winmm: Make WINMM_DRVMessage() static.

[Francois Gouget]

---
 dlls/winmm/waveform.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/dlls/winmm/waveform.c b/dlls/winmm/waveform.c
index 254bf21..3e3dbe3 100644
--- a/dlls/winmm/waveform.c
+++ b/dlls/winmm/waveform.c
@@ -2272,7 +2272,7 @@ static UINT WINMM_QueryInstanceID(UINT device, WCHAR *str, DWORD_PTR len,
     return MMSYSERR_NOERROR;
 }
 
-UINT WINMM_DRVMessage(UINT dev, UINT message, DWORD_PTR param1,
+static UINT WINMM_DRVMessage(UINT dev, UINT message, DWORD_PTR param1,
         DWORD_PTR param2)
 {
     WINE_MLD *wmld;
-- 
1.7.5.4