diff --git a/src/audio/windx5/Makefile.am b/src/audio/windx5/Makefile.am
index 3f176de9a..5e8e55697 100644
--- a/src/audio/windx5/Makefile.am
+++ b/src/audio/windx5/Makefile.am
@@ -6,4 +6,5 @@ libaudio_windx5_la_SOURCES = $(SRCS)
 
 # The SDL audio driver sources
 SRCS =	SDL_dx5audio.c	\
-	SDL_dx5audio.h
+	SDL_dx5audio.h	\
+	directx.h
diff --git a/src/audio/windx5/directx.h b/src/audio/windx5/directx.h
new file mode 100644
index 000000000..0debe73b8
--- /dev/null
+++ b/src/audio/windx5/directx.h
@@ -0,0 +1,83 @@
+
+#ifndef _directx_h
+#define _directx_h
+
+/* Include all of the DirectX 5.0 headers and adds any necessary tweaks */
+
+#include <windows.h>
+#include <mmsystem.h>
+#ifndef WIN32
+#define WIN32
+#endif
+#undef  WINNT
+
+/* Far pointers don't exist in 32-bit code */
+#ifndef FAR
+#define FAR
+#endif
+
+/* Error codes not yet included in Win32 API header files */
+#ifndef MAKE_HRESULT
+#define MAKE_HRESULT(sev,fac,code) \
+	((HRESULT)(((unsigned long)(sev)<<31) | ((unsigned long)(fac)<<16) | ((unsigned long)(code))))
+#endif
+
+#ifndef S_OK
+#define S_OK		(HRESULT)0x00000000L
+#endif
+
+#ifndef SUCCEEDED
+#define SUCCEEDED(x)	((HRESULT)(x) >= 0)
+#endif
+#ifndef FAILED
+#define FAILED(x)	((HRESULT)(x)<0)
+#endif
+
+#ifndef E_FAIL
+#define E_FAIL		(HRESULT)0x80000008L
+#endif
+#ifndef E_NOINTERFACE
+#define E_NOINTERFACE	(HRESULT)0x80004002L
+#endif
+#ifndef E_OUTOFMEMORY
+#define E_OUTOFMEMORY	(HRESULT)0x8007000EL
+#endif
+#ifndef E_INVALIDARG
+#define E_INVALIDARG	(HRESULT)0x80070057L
+#endif
+#ifndef E_NOTIMPL
+#define E_NOTIMPL	(HRESULT)0x80004001L
+#endif
+#ifndef REGDB_E_CLASSNOTREG
+#define REGDB_E_CLASSNOTREG	(HRESULT)0x80040154L
+#endif
+
+/* Severity codes */
+#ifndef SEVERITY_ERROR
+#define SEVERITY_ERROR	1
+#endif
+
+/* Error facility codes */
+#ifndef FACILITY_WIN32
+#define FACILITY_WIN32	7
+#endif
+
+#ifndef FIELD_OFFSET
+#define FIELD_OFFSET(type, field)    ((LONG)&(((type *)0)->field))
+#endif
+
+/* DirectX headers (if it isn't included, I haven't tested it yet)
+ */
+/* We need these defines to mark what version of DirectX API we use */
+#define DIRECTDRAW_VERSION  0x0700
+#define DIRECTSOUND_VERSION 0x0500
+#define DIRECTINPUT_VERSION 0x0500
+
+#ifdef __GNUC__
+#define NONAMELESSUNION
+#endif
+#include <ddraw.h>
+#include <dsound.h>
+#include <dinput.h>
+
+#endif /* _directx_h */