diff --git a/Make.rules.in b/Make.rules.in
index 8abf4d0e344..8f2ad54eb4b 100644
--- a/Make.rules.in
+++ b/Make.rules.in
@@ -171,13 +171,13 @@ $(SUBDIRS:%=%/__man__): dummy
 	cd `dirname $@` && $(MAKE) man
 
 man: $(C_SRCS) $(SUBDIRS:%=%/__man__)
-	if [ -n "$(C_SRCS)" ]; then $(MKINSTALLDIRS) $(TOPOBJDIR)/documentation/man3w; for i in $(C_SRCS); do $(C2MAN) -L -o $(TOPOBJDIR)/documentation/man3w -S3w $(DIVINCL) -D__WINE__ $(MANSPECS) $$i; done; fi
+	if [ -n "$(C_SRCS)" ]; then $(MKINSTALLDIRS) $(TOPOBJDIR)/documentation/man3w; for i in $(C_SRCS); do $(C2MAN) -L -o $(TOPOBJDIR)/documentation/man3w -S3w $(DIVINCL) -D__WINESRC__ $(MANSPECS) $$i; done; fi
 
 $(SUBDIRS:%=%/__doc_html__): dummy
 	cd `dirname $@` && $(MAKE) doc-html
 
 doc-html: $(C_SRCS) $(SUBDIRS:%=%/__doc_html__)
-	if [ -n "$(C_SRCS)" ]; then $(MKINSTALLDIRS) $(TOPOBJDIR)/documentation/html; for i in $(C_SRCS); do $(C2MAN) -L -o $(TOPOBJDIR)/documentation/html -Th -iwindows.h  $(DIVINCL) -D__WINE__ $(MANSPECS) $$i; done; fi
+	if [ -n "$(C_SRCS)" ]; then $(MKINSTALLDIRS) $(TOPOBJDIR)/documentation/html; for i in $(C_SRCS); do $(C2MAN) -L -o $(TOPOBJDIR)/documentation/html -Th -iwindows.h  $(DIVINCL) -D__WINESRC__ $(MANSPECS) $$i; done; fi
 
 .PHONY: man doc-html $(SUBDIRS:%=%/__man__) $(SUBDIRS:%=%/__doc_html__)
 
diff --git a/dlls/Makedll.rules.in b/dlls/Makedll.rules.in
index 557ff6e9a8d..81cf938d813 100644
--- a/dlls/Makedll.rules.in
+++ b/dlls/Makedll.rules.in
@@ -8,7 +8,7 @@
 # plus all variables required by the global Make.rules.in
 #
 
-DEFS        = @DLLFLAGS@ -D__WINE__ $(EXTRADEFS)
+DEFS        = @DLLFLAGS@ -D__WINESRC__ $(EXTRADEFS)
 DLLEXT      = @DLLEXT@
 ALTSPECS    = $(ALTNAMES:%.dll=%)
 SPEC_SRCS   = $(ALTSPECS:%=%.spec)
diff --git a/include/mmddk.h b/include/mmddk.h
index c6c53e145db..476944c9697 100644
--- a/include/mmddk.h
+++ b/include/mmddk.h
@@ -79,7 +79,7 @@ typedef struct {
 #define DRV_QUERYNAME		(DRV_RESERVED + 3)
 #define DRV_QUERYDRIVERIDS	(DRV_RESERVED + 4)
 #define DRV_QUERYMAPPABLE	(DRV_RESERVED + 5)
-#ifdef __WINE__
+#ifdef __WINESRC__
 #define DRV_QUERYDSOUNDIFACE	(DRV_RESERVED + 10)
 #endif
 
diff --git a/include/mmsystem.h b/include/mmsystem.h
index 9324b5bd293..147c567159d 100644
--- a/include/mmsystem.h
+++ b/include/mmsystem.h
@@ -228,7 +228,7 @@ LRESULT WINAPI SendDriverMessage(HDRVR hDriver, UINT message,
 HMODULE WINAPI GetDriverModuleHandle(HDRVR hDriver);
 
 DWORD	WINAPI GetDriverFlags(HDRVR hDriver);
-#ifdef __WINE__
+#ifdef __WINESRC__
 /* this call (GetDriverFlags) is not documented, nor the flags returned.
  * here are Wine only definitions
  */
@@ -303,7 +303,7 @@ typedef LPDRVCALLBACK LPWAVECALLBACK;
 #define  WAVE_MAPPED               	0x0004
 #define  WAVE_FORMAT_DIRECT        	0x0008
 #define  WAVE_FORMAT_DIRECT_QUERY  	(WAVE_FORMAT_QUERY | WAVE_FORMAT_DIRECT)
-#ifdef __WINE__
+#ifdef __WINESRC__
 #define  WAVE_DIRECTSOUND               0x0080
 #endif
 
diff --git a/include/oaidl.h b/include/oaidl.h
index e3e42d8141f..24f7c91fdf4 100644
--- a/include/oaidl.h
+++ b/include/oaidl.h
@@ -26,7 +26,7 @@
 #ifndef __WINE_OAIDL_H
 #define __WINE_OAIDL_H
 
-#if defined(__WINE__) && !defined(INITGUID) && !defined(__WINE_INCLUDE_OAIDL)
+#if defined(__WINESRC__) && !defined(INITGUID) && !defined(__WINE_INCLUDE_OAIDL)
 #error DO NOT INCLUDE DIRECTLY
 #endif
 
diff --git a/include/objbase.h b/include/objbase.h
index 1ea8313312d..3aa323473b5 100644
--- a/include/objbase.h
+++ b/include/objbase.h
@@ -805,7 +805,7 @@ HRESULT WINAPI StgOpenStorageOnILockBytes(ILockBytes *plkbyt, IStorage *pstgPrio
 #define ICOM_CALL26(xfn, ptr,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z) ICOM_VTBL(ptr)->xfn(ptr,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z)
 
 
-#ifndef __WINE__
+#ifndef __WINESRC__
 /* These macros are msdev's way of defining COM objects.
  * They are provided here for use by Winelib developpers.
  */
@@ -859,6 +859,6 @@ HRESULT WINAPI StgOpenStorageOnILockBytes(ILockBytes *plkbyt, IStorage *pstgPrio
 
 #endif /* __cplusplus && !CINTERFACE */
 
-#endif /* __WINE__ */
+#endif /* __WINESRC__ */
 
 #endif /* _OBJBASE_H_ */
diff --git a/include/objidl.h b/include/objidl.h
index 657250ace41..b4cf987f386 100644
--- a/include/objidl.h
+++ b/include/objidl.h
@@ -1711,7 +1711,7 @@ void __RPC_STUB IRunnableObject_SetContainedObject_Stub(
     PRPC_MESSAGE pRpcMessage,
     DWORD* pdwStubPhase);
 
-#ifdef __WINE__
+#ifdef __WINESRC__
 #undef GetObject
 #endif
 typedef IRunningObjectTable *LPRUNNINGOBJECTTABLE;
diff --git a/include/objidl.idl b/include/objidl.idl
index b3d3917c223..084937040c6 100644
--- a/include/objidl.idl
+++ b/include/objidl.idl
@@ -424,10 +424,10 @@ interface IRunnableObject : IUnknown
 }
 
 /* GetObject is defined in wingdi.h as WINELIB_NAME_AW(GetObject),
- * which resolves to a compilation failure if __WINE__ is defined,
+ * which resolves to a compilation failure if __WINESRC__ is defined,
  * but GetObject is used as a valid method name below, so we have
- * to undefine it if __WINE__ is defined */
-cpp_quote("#ifdef __WINE__")
+ * to undefine it if __WINESRC__ is defined */
+cpp_quote("#ifdef __WINESRC__")
 cpp_quote("#undef GetObject")
 cpp_quote("#endif")
 
diff --git a/include/ocidl.h b/include/ocidl.h
index 6e007a8f5de..dc9664ea658 100644
--- a/include/ocidl.h
+++ b/include/ocidl.h
@@ -26,7 +26,7 @@
 #ifndef __WINE_OCIDL_H
 #define __WINE_OCIDL_H
 
-#if defined(__WINE__) && !defined(INITGUID) && !defined(__WINE_INCLUDE_OCIDL)
+#if defined(__WINESRC__) && !defined(INITGUID) && !defined(__WINE_INCLUDE_OCIDL)
 #error DO NOT INCLUDE DIRECTLY
 #endif
 
diff --git a/include/oleidl.h b/include/oleidl.h
index 1fe96d170b6..1e917890c6a 100644
--- a/include/oleidl.h
+++ b/include/oleidl.h
@@ -26,7 +26,7 @@
 #ifndef __WINE_OLEIDL_H
 #define __WINE_OLEIDL_H
 
-#if defined(__WINE__) && !defined(INITGUID) && !defined(__WINE_INCLUDE_OLEIDL)
+#if defined(__WINESRC__) && !defined(INITGUID) && !defined(__WINE_INCLUDE_OLEIDL)
 #error DO NOT INCLUDE DIRECTLY
 #endif
 
diff --git a/include/prsht.h b/include/prsht.h
index 24f6fb7491e..f96471176f6 100644
--- a/include/prsht.h
+++ b/include/prsht.h
@@ -264,7 +264,7 @@ DECL_WINELIB_TYPE_AW(LPFNPSPCALLBACK)
 #define PSH_WIZARD_LITE         0x00400000
 #define PSH_WIZARD97_NEW        0x01000000 /* for IE >= 5 */
 #define PSH_NOCONTEXTHELP       0x02000000
-#ifndef __WINE__
+#ifndef __WINESRC__
 # if _WIN32_IE < 0x0500
 #  define PSH_WIZARD97          PSH_WIZARD97_OLD
 # else
diff --git a/include/rpc.h b/include/rpc.h
index 29191992942..28be46e4334 100644
--- a/include/rpc.h
+++ b/include/rpc.h
@@ -18,7 +18,7 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-#if !defined(RPC_NO_WINDOWS_H) && !defined(__WINE__)
+#if !defined(RPC_NO_WINDOWS_H) && !defined(__WINESRC__)
 #include "windows.h"
 #endif
 
diff --git a/include/rpcdce.h b/include/rpcdce.h
index c0b4e55d308..ad1aa5d18f9 100644
--- a/include/rpcdce.h
+++ b/include/rpcdce.h
@@ -21,7 +21,7 @@
 
 #include "windef.h"
 
-/* avoid delving into windows.h ifndef __WINE__; this
+/* avoid delving into windows.h ifndef __WINESRC__; this
    would pull in rpcndr.h, which needs rpcdcep.h, which
    needs us, in turn, causing a compile failure */
 #ifndef RPC_NO_WINDOWS_H
diff --git a/include/rpcproxy.h b/include/rpcproxy.h
index bbd8428f896..d29a7dab956 100644
--- a/include/rpcproxy.h
+++ b/include/rpcproxy.h
@@ -195,7 +195,7 @@ ULONG WINAPI CStdStubBuffer_Release(IRpcStubBuffer *This) \
 
 #define IID_GENERIC_CHECK_IID(name,pIID,index) memcmp(pIID, name##_ProxyVtblList[index]->header.piid, sizeof(IID))
 
-#if defined(__WINE__) && defined(__WINE_WINE_OBJ_OLEAUT_H)
+#if defined(__WINESRC__) && defined(__WINE_WINE_OBJ_OLEAUT_H)
 /* see http://msdn.microsoft.com/library/en-us/dnmsj99/html/com0199.asp?frame=true */
 
 RPCRTAPI HRESULT RPC_ENTRY
diff --git a/include/shlwapi.h b/include/shlwapi.h
index 29d5edf8ead..3ec7e1d2835 100644
--- a/include/shlwapi.h
+++ b/include/shlwapi.h
@@ -715,7 +715,7 @@ LPSTR WINAPI StrFormatByteSizeA (DWORD,LPSTR,UINT);
 /* A/W Pairing is broken for this function */
 LPSTR WINAPI StrFormatByteSize64A (LONGLONG,LPSTR,UINT);
 LPWSTR WINAPI StrFormatByteSizeW (LONGLONG,LPWSTR,UINT);
-#ifndef __WINE__
+#ifndef __WINESRC__
 #ifdef UNICODE
 #define StrFormatByteSize StrFormatByteSizeW
 #else
diff --git a/include/tchar.h b/include/tchar.h
index deead02c83b..b34ec809aa7 100644
--- a/include/tchar.h
+++ b/include/tchar.h
@@ -19,7 +19,7 @@
 #ifndef __WINE_TCHAR_H
 #define __WINE_TCHAR_H
 
-#ifdef __WINE__
+#ifdef __WINESRC__
 #error Wine should not include tchar.h internally
 #endif
 
diff --git a/include/winbase.h b/include/winbase.h
index 7bba6c422f6..bcaf220326c 100644
--- a/include/winbase.h
+++ b/include/winbase.h
@@ -828,7 +828,7 @@ typedef DWORD (CALLBACK *LPPROGRESS_ROUTINE)(LARGE_INTEGER, LARGE_INTEGER, LARGE
 #define	FORMAT_MESSAGE_ARGUMENT_ARRAY	0x00002000
 #define	FORMAT_MESSAGE_MAX_WIDTH_MASK	0x000000FF
 
-#ifdef __WINE__
+#ifdef __WINESRC__
 #define CRITICAL_SECTION_INIT(name) { (void *)(__FILE__ ": " name), -1, 0, 0, 0, 0 }
 #endif
 
@@ -1944,7 +1944,7 @@ static inline PVOID WINAPI InterlockedExchangePointer( PVOID *dest, PVOID val )
     return (PVOID)InterlockedExchange( (PLONG)dest, (LONG)val );
 }
 
-#ifdef __WINE__
+#ifdef __WINESRC__
 #define GetCurrentProcess() ((HANDLE)0xffffffff)
 #define GetCurrentThread()  ((HANDLE)0xfffffffe)
 #endif
diff --git a/include/windef.h b/include/windef.h
index e53d014ff7b..4cba2366a3d 100644
--- a/include/windef.h
+++ b/include/windef.h
@@ -21,9 +21,9 @@
 #ifndef __WINE_WINDEF_H
 #define __WINE_WINDEF_H
 
-#ifdef __WINE__
+#ifdef __WINESRC__
 # undef UNICODE
-#endif  /* __WINE__ */
+#endif  /* __WINESRC__ */
 
 #ifndef WINVER
 #define WINVER 0x0500
@@ -58,7 +58,7 @@ extern "C" {
 # define __cdecl
 #endif  /* __i386__ */
 
-#ifndef __WINE__
+#ifndef __WINESRC__
 
 #ifndef pascal
 #define pascal      __stdcall
@@ -111,7 +111,7 @@ extern "C" {
 #define __declspec(x)
 #endif
 
-#endif /* __WINE__ */
+#endif /* __WINESRC__ */
 
 #define CALLBACK    __stdcall
 #define WINAPI      __stdcall
@@ -175,26 +175,26 @@ typedef double          DATE;
 #include "winnt.h"
 
 /* Macros to map Winelib names to the correct implementation name */
-/* depending on __WINE__ and UNICODE macros.                      */
+/* depending on __WINESRC__ and UNICODE macros.                   */
 /* Note that Winelib is purely Win32.                             */
 
-#ifdef __WINE__
+#ifdef __WINESRC__
 # define WINELIB_NAME_AW(func) \
     func##_must_be_suffixed_with_W_or_A_in_this_context \
     func##_must_be_suffixed_with_W_or_A_in_this_context
-#else  /* __WINE__ */
+#else  /* __WINESRC__ */
 # ifdef UNICODE
 #  define WINELIB_NAME_AW(func) func##W
 # else
 #  define WINELIB_NAME_AW(func) func##A
 # endif  /* UNICODE */
-#endif  /* __WINE__ */
+#endif  /* __WINESRC__ */
 
-#ifdef __WINE__
+#ifdef __WINESRC__
 # define DECL_WINELIB_TYPE_AW(type)  /* nothing */
-#else   /* __WINE__ */
+#else   /* __WINESRC__ */
 # define DECL_WINELIB_TYPE_AW(type)  typedef WINELIB_NAME_AW(type) type;
-#endif  /* __WINE__ */
+#endif  /* __WINESRC__ */
 
 
 /* Integer types */
diff --git a/include/windows.h b/include/windows.h
index 017816b0934..b1a87589043 100644
--- a/include/windows.h
+++ b/include/windows.h
@@ -19,7 +19,7 @@
 #ifndef __WINE_WINDOWS_H
 #define __WINE_WINDOWS_H
 
-#ifdef __WINE__
+#ifdef __WINESRC__
 #error Wine should not include windows.h internally
 #endif
 
diff --git a/include/wine/debug.h b/include/wine/debug.h
index e0e177cef1b..769e0665fa7 100644
--- a/include/wine/debug.h
+++ b/include/wine/debug.h
@@ -174,7 +174,7 @@ static inline const char *wine_dbgstr_rect( const RECT *rect )
 #define WINE_DPRINTF               wine_dbg_printf
 #define WINE_MESSAGE               wine_dbg_printf
 
-#ifdef __WINE__
+#ifdef __WINESRC__
 /* Wine uses shorter names that are very likely to conflict with other software */
 
 inline static const char *debugstr_an( const char * s, int n ) { return wine_dbgstr_an( s, n ); }
@@ -203,7 +203,7 @@ inline static const char *debugstr_w( const WCHAR *s ) { return wine_dbgstr_wn(
 #define DPRINTF                    WINE_DPRINTF
 #define MESSAGE                    WINE_MESSAGE
 
-#endif /* __WINE__ */
+#endif /* __WINESRC__ */
 
 #ifdef __cplusplus
 }
diff --git a/include/wine/obj_control.h b/include/wine/obj_control.h
index e4a4791698c..31dde885ae4 100644
--- a/include/wine/obj_control.h
+++ b/include/wine/obj_control.h
@@ -424,7 +424,7 @@ ICOM_DEFINE(IViewObjectEx,IViewObject2)
 /*****************************************************************************
  * IProvideClassInfo interface
  */
-#ifdef __WINE__
+#ifdef __WINESRC__
 #undef GetClassInfo
 #endif
 
diff --git a/include/wine/obj_inplace.h b/include/wine/obj_inplace.h
index 663d5d44eec..2471b1b12f4 100644
--- a/include/wine/obj_inplace.h
+++ b/include/wine/obj_inplace.h
@@ -425,7 +425,7 @@ ICOM_DEFINE(IOleContainer,IParseDisplayName)
 /*****************************************************************************
  * IOleItemContainer interface
  */
-#ifdef __WINE__
+#ifdef __WINESRC__
 #undef GetObject
 #endif
 
diff --git a/include/winnt.h b/include/winnt.h
index a377c4bf037..7e7deb3f2f4 100644
--- a/include/winnt.h
+++ b/include/winnt.h
@@ -136,7 +136,7 @@
 
 /* Anonymous union/struct handling */
 
-#ifdef __WINE__
+#ifdef __WINESRC__
 # define NONAMELESSSTRUCT
 # define NONAMELESSUNION
 #else
@@ -266,7 +266,7 @@
 # define EXTERN_C    extern
 #endif
 
-#ifndef __WINE__
+#ifndef __WINESRC__
 #define STDMETHODCALLTYPE       __stdcall
 #define STDMETHODVCALLTYPE      __cdecl
 #define STDAPICALLTYPE          __stdcall
@@ -328,7 +328,7 @@ typedef const WCHAR    *PCWSTR,     *LPCWSTR;
  * the emulator. The reason is they depend on the UNICODE
  * macro which only exists in the user's code.
  */
-#ifndef __WINE__
+#ifndef __WINESRC__
 # ifdef WINE_UNICODE_REWRITE
 
 /* Use this if your compiler does not provide a 16bit wchar_t type.
@@ -379,7 +379,7 @@ typedef LPCSTR          PCTSTR,      LPCTSTR;
 #  define __TEXT(string) string
 # endif /* UNICODE */
 # define TEXT(quote) __TEXT(quote)
-#endif   /* __WINE__ */
+#endif   /* __WINESRC__ */
 
 /* Misc common WIN32 types */
 typedef char            CCHAR;
@@ -474,7 +474,7 @@ typedef struct _MEMORY_BASIC_INFORMATION
 #define MEM_MAPPED              0x00040000
 #define MEM_RESET               0x00080000
 #define MEM_TOP_DOWN            0x00100000
-#ifdef __WINE__
+#ifdef __WINESRC__
 #define MEM_SYSTEM              0x80000000
 #endif
 
@@ -1132,7 +1132,7 @@ typedef struct _CONTEXT
 
 typedef CONTEXT *PCONTEXT;
 
-#ifdef __WINE__
+#ifdef __WINESRC__
 
 /* Macros to retrieve the current context */
 
@@ -1269,7 +1269,7 @@ static DWORD __builtin_return_address(int p_iDepth)
 #error You need to define DEFINE_REGS_ENTRYPOINT macros for your CPU
 #endif
 
-#endif  /* __WINE__ */
+#endif  /* __WINESRC__ */
 
 /*
  * Language IDs
diff --git a/include/winsock.h b/include/winsock.h
index 47cb66b5037..2b68147c168 100644
--- a/include/winsock.h
+++ b/include/winsock.h
@@ -20,13 +20,13 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-#ifdef __WINE__
+#ifdef __WINESRC__
 # ifndef __WINE_WINSOCK2__
 #  error Please use Winsock2 in Wine
 # endif
 #endif
 
-#ifndef __WINE__
+#ifndef __WINESRC__
 # include "windows.h"
 #else
 # include "windef.h"
@@ -720,7 +720,7 @@ typedef struct WS(WSAData)
 #define FD_CLOSE                   0x00000020
 
 /* internal per-socket flags */
-#ifdef __WINE__
+#ifdef __WINESRC__
 #define FD_WINE_LISTENING          0x10000000
 #define FD_WINE_NONBLOCKING        0x20000000
 #define FD_WINE_CONNECTED          0x40000000
@@ -936,7 +936,7 @@ u_long WINAPI WS(ntohl)(u_long);
 u_short WINAPI WS(ntohs)(u_short);
 #endif
 
-#if defined(__WINE__) || !defined(__WINE_WINSOCK2__)
+#if defined(__WINESRC__) || !defined(__WINE_WINSOCK2__)
 /* Stuff specific to winsock.h */
 
 #include "mswsock.h"
diff --git a/include/winternl.h b/include/winternl.h
index c3e71f2a69f..bc7ce48a535 100644
--- a/include/winternl.h
+++ b/include/winternl.h
@@ -475,7 +475,7 @@ typedef struct _OBJECT_ATTRIBUTES {
 } OBJECT_ATTRIBUTES, *POBJECT_ATTRIBUTES;
 
 typedef struct _PROCESS_BASIC_INFORMATION {
-#ifdef __WINE__
+#ifdef __WINESRC__
     DWORD ExitStatus;
     DWORD PebBaseAddress;
     DWORD AffinityMask;
@@ -556,7 +556,7 @@ typedef struct _RTL_RWLOCK {
 
 /* System Information Class 0x00 */
 typedef struct _SYSTEM_BASIC_INFORMATION {
-#ifdef __WINE__
+#ifdef __WINESRC__
     DWORD dwUnknown1;
     ULONG uKeMaximumIncrement;
     ULONG uPageSize;
@@ -645,7 +645,7 @@ typedef struct _SYSTEM_PERFORMANCE_INFORMATION {
 
 /* System Information Class 0x02 */
 typedef struct _SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION {
-#ifdef __WINE__
+#ifdef __WINESRC__
     LARGE_INTEGER liIdleTime;
     DWORD dwSpare[76];
 #else
@@ -659,7 +659,7 @@ typedef struct _SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION {
 
 /* System Information Class 0x05 */
 typedef struct _SYSTEM_PROCESS_INFORMATION {
-#ifdef __WINE__
+#ifdef __WINESRC__
     DWORD dwOffset;
     DWORD dwThreadCount;
     DWORD dwUnknown1[6];
@@ -714,7 +714,7 @@ typedef struct _SYSTEM_TIME_ADJUSTMENT {
 
 /* System Information Class 0x03 */
 typedef struct _SYSTEM_TIMEOFDAY_INFORMATION {
-#ifdef __WINE__
+#ifdef __WINESRC__
     LARGE_INTEGER liKeBootTime;
     LARGE_INTEGER liKeSystemTime;
     LARGE_INTEGER liExpTimeZoneBias;
diff --git a/include/wownt32.h b/include/wownt32.h
index 100dfe63ebe..295f7002c41 100644
--- a/include/wownt32.h
+++ b/include/wownt32.h
@@ -59,7 +59,7 @@ typedef enum
 HANDLE WINAPI WOWHandle32(WORD,WOW_HANDLE_TYPE);
 WORD   WINAPI WOWHandle16(HANDLE,WOW_HANDLE_TYPE);
 
-#ifdef __WINE__
+#ifdef __WINESRC__
 /* under Wine use the kernel functions directly so we don't have to import wow32 */
 HANDLE WINAPI K32WOWHandle32(WORD,WOW_HANDLE_TYPE);
 WORD   WINAPI K32WOWHandle16(HANDLE,WOW_HANDLE_TYPE);
@@ -67,7 +67,7 @@ WORD   WINAPI K32WOWHandle16(HANDLE,WOW_HANDLE_TYPE);
 #define WOWHandle16 K32WOWHandle16
 #endif
 
-#ifdef __WINE__
+#ifdef __WINESRC__
 /* under Wine we use optimized versions where we can */
 #define HWND_32(h16)      ((HWND)      (ULONG_PTR)(h16))
 #define HMENU_32(h16)     ((HMENU)     (ULONG_PTR)(h16))
@@ -95,7 +95,7 @@ WORD   WINAPI K32WOWHandle16(HANDLE,WOW_HANDLE_TYPE);
 #define HPEN_16(h32)      (LOWORD(h32))
 #define HACCEL_16(h32)    (LOWORD(h32))
 
-#else  /* __WINE__ */
+#else  /* __WINESRC__ */
 
 #define HWND_32(h16)      ((HWND)      (WOWHandle32(h16, WOW_TYPE_HWND)))
 #define HMENU_32(h16)     ((HMENU)     (WOWHandle32(h16, WOW_TYPE_HMENU)))
@@ -123,7 +123,7 @@ WORD   WINAPI K32WOWHandle16(HANDLE,WOW_HANDLE_TYPE);
 #define HPEN_16(h32)      (WOWHandle16(h32, WOW_TYPE_HPEN))
 #define HACCEL_16(h32)    (WOWHandle16(h32, WOW_TYPE_HACCEL))
 
-#endif  /* __WINE__ */
+#endif  /* __WINESRC__ */
 
 #define HMETAFILE_32(h16) ((HMETAFILE)(WOWHandle32(h16, WOW_TYPE_HMETAFILE)))
 #define HTASK_32(h16)     ((DWORD)(WOWHandle32(h16, WOW_TYPE_HTASK)))
diff --git a/include/wtypes.h b/include/wtypes.h
index 258ffeb8fd3..0b505757a45 100644
--- a/include/wtypes.h
+++ b/include/wtypes.h
@@ -151,7 +151,7 @@ typedef OLECHAR *LPOLESTR;
 
 typedef const OLECHAR *LPCOLESTR;
 
-#ifndef __WINE__
+#ifndef __WINESRC__
 #define OLESTR(str) WINE_UNICODE_TEXT(str)
 #endif
 typedef CHAR OLECHAR16;
diff --git a/include/wtypes.idl b/include/wtypes.idl
index 633f791a105..80861ffadca 100644
--- a/include/wtypes.idl
+++ b/include/wtypes.idl
@@ -153,7 +153,7 @@ cpp_quote("#endif")
 typedef WCHAR OLECHAR;
 typedef [string] OLECHAR *LPOLESTR;
 typedef [string] const OLECHAR *LPCOLESTR;
-cpp_quote("#ifndef __WINE__")
+cpp_quote("#ifndef __WINESRC__")
 cpp_quote("#define OLESTR(str) WINE_UNICODE_TEXT(str)")
 cpp_quote("#endif")
 
diff --git a/library/Makefile.in b/library/Makefile.in
index 1adb5b3beb6..2bc600580e2 100644
--- a/library/Makefile.in
+++ b/library/Makefile.in
@@ -1,4 +1,4 @@
-DEFS      = @DLLFLAGS@ -D__WINE__ -DDLLDIR="\"$(dlldir)\""
+DEFS      = @DLLFLAGS@ -D__WINESRC__ -DDLLDIR="\"$(dlldir)\""
 TOPSRCDIR = @top_srcdir@
 TOPOBJDIR = ..
 SRCDIR    = @srcdir@
diff --git a/miscemu/Makefile.in b/miscemu/Makefile.in
index 79fb7319c78..8f590ef471f 100644
--- a/miscemu/Makefile.in
+++ b/miscemu/Makefile.in
@@ -1,4 +1,4 @@
-DEFS      = -D__WINE__
+DEFS      = -D__WINESRC__
 TOPSRCDIR = @top_srcdir@
 TOPOBJDIR = ..
 SRCDIR    = @srcdir@
diff --git a/ole/Makefile.in b/ole/Makefile.in
index dedbec7fbfd..cfd285ebe84 100644
--- a/ole/Makefile.in
+++ b/ole/Makefile.in
@@ -1,4 +1,4 @@
-DEFS      = @DLLFLAGS@ -D__WINE__
+DEFS      = @DLLFLAGS@ -D__WINESRC__
 TOPSRCDIR = @top_srcdir@
 TOPOBJDIR = ..
 SRCDIR    = @srcdir@
diff --git a/server/Makefile.in b/server/Makefile.in
index 91dde186829..543b8e36509 100644
--- a/server/Makefile.in
+++ b/server/Makefile.in
@@ -1,4 +1,4 @@
-DEFS      = -D__WINE__
+DEFS      = -D__WINESRC__
 TOPSRCDIR = @top_srcdir@
 TOPOBJDIR = ..
 SRCDIR    = @srcdir@
diff --git a/tools/widl/Makefile.in b/tools/widl/Makefile.in
index ab9b52cc15a..4379f1cffc4 100644
--- a/tools/widl/Makefile.in
+++ b/tools/widl/Makefile.in
@@ -1,4 +1,4 @@
-DEFS      = -D__WINE__
+DEFS      = -D__WINESRC__
 TOPSRCDIR = @top_srcdir@
 TOPOBJDIR = ../..
 SRCDIR    = @srcdir@
diff --git a/tools/winapi/Makefile.in b/tools/winapi/Makefile.in
index c9ad9e161e5..518c3a6a28a 100644
--- a/tools/winapi/Makefile.in
+++ b/tools/winapi/Makefile.in
@@ -1,4 +1,4 @@
-DEFS      = -D__WINE__
+DEFS      = -D__WINESRC__
 TOPSRCDIR = @top_srcdir@
 TOPOBJDIR = ../..
 SRCDIR    = @srcdir@
diff --git a/tools/winapi/msvcmaker b/tools/winapi/msvcmaker
index b19ad14fc1c..b446beded2f 100755
--- a/tools/winapi/msvcmaker
+++ b/tools/winapi/msvcmaker
@@ -673,7 +673,7 @@ sub _generate_dsp {
 	my @includes = ();
 	if($wine) {
 	    push @defines2, "_\U${project}\E_";
-	    push @defines2, qw(__WINE__) if $project !~ /^(?:wine(?:build|test)|.*?_test)$/;
+	    push @defines2, qw(__WINESRC__) if $project !~ /^(?:wine(?:build|test)|.*?_test)$/;
 	    push @defines2, qw(__WINE_USE_MSVCRT);
 	    my $output_dir2 = $output_dir;
 	    $output_dir =~ s/\\/\\\\/g;
diff --git a/tools/winebuild/Makefile.in b/tools/winebuild/Makefile.in
index 158aaa0ee46..04618d174fe 100644
--- a/tools/winebuild/Makefile.in
+++ b/tools/winebuild/Makefile.in
@@ -1,4 +1,4 @@
-DEFS      = -D__WINE__
+DEFS      = -D__WINESRC__
 TOPSRCDIR = @top_srcdir@
 TOPOBJDIR = ../..
 SRCDIR    = @srcdir@
diff --git a/tools/winedump/Makefile.in b/tools/winedump/Makefile.in
index 28f3fc558c1..be7534a9bee 100644
--- a/tools/winedump/Makefile.in
+++ b/tools/winedump/Makefile.in
@@ -1,4 +1,4 @@
-DEFS      = -D__WINE__
+DEFS      = -D__WINESRC__
 TOPSRCDIR = @top_srcdir@
 TOPOBJDIR = ../..
 SRCDIR    = @srcdir@
diff --git a/tools/wmc/Makefile.in b/tools/wmc/Makefile.in
index 3cd78981349..e47a573117a 100644
--- a/tools/wmc/Makefile.in
+++ b/tools/wmc/Makefile.in
@@ -1,4 +1,4 @@
-DEFS      = -D__WINE__
+DEFS      = -D__WINESRC__
 TOPSRCDIR = @top_srcdir@
 TOPOBJDIR = ../..
 SRCDIR    = @srcdir@
diff --git a/tools/wpp/Makefile.in b/tools/wpp/Makefile.in
index 29f04d21163..0b5a0edadb8 100644
--- a/tools/wpp/Makefile.in
+++ b/tools/wpp/Makefile.in
@@ -1,4 +1,4 @@
-DEFS      = -D__WINE__
+DEFS      = -D__WINESRC__
 TOPSRCDIR = @top_srcdir@
 TOPOBJDIR = ../..
 SRCDIR    = @srcdir@
diff --git a/tools/wrc/Makefile.in b/tools/wrc/Makefile.in
index 080bdb76bb2..30e14550548 100644
--- a/tools/wrc/Makefile.in
+++ b/tools/wrc/Makefile.in
@@ -1,4 +1,4 @@
-DEFS      = -D__WINE__ -DINCLUDEDIR="\"$(includedir)\""
+DEFS      = -D__WINESRC__ -DINCLUDEDIR="\"$(includedir)\""
 TOPSRCDIR = @top_srcdir@
 TOPOBJDIR = ../..
 SRCDIR    = @srcdir@
diff --git a/unicode/Makefile.in b/unicode/Makefile.in
index c1b34ce42ec..dd85d6e53b4 100644
--- a/unicode/Makefile.in
+++ b/unicode/Makefile.in
@@ -1,4 +1,4 @@
-DEFS      = @DLLFLAGS@ -D__WINE__
+DEFS      = @DLLFLAGS@ -D__WINESRC__
 TOPSRCDIR = @top_srcdir@
 TOPOBJDIR = ..
 SRCDIR    = @srcdir@