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Date:	Fri, 11 Jan 2013 13:54:48 +0100
From:	Angelo Graziosi <angelo DOT graziosi AT alice DOT it>
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To:	Cygwin <cygwin AT cygwin DOT com>
Subject:	Another issue with CLANG
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An application which need to be built with clang++, fails to build when 
it includes glx.h and indirectly windows.h headers like in the test case 
shown below.

In short, X11/Xlib.h define Status as a macro (an alias for int) instead 
rpcdce.h uses Status a a pointer variable name...

Ciao,
  Angelo.

$ cat foo.cxx
#include <GL/glx.h>
#include <windows.h>


int foo()
{
   return 0;
}

$ clang++ -D_X86_=1 -c foo.cxx -o foo.o
In file included from foo.cxx:2:
In file included from /usr/include/w32api/windows.h:88:
In file included from /usr/include/w32api/rpc.h:70:
/usr/include/w32api/rpcdce.h:142:88: error: expected ')'
   ...RPC_OBJECT_INQ_FN(UUID *ObjectUuid,UUID *TypeUuid,RPC_STATUS *Status);
                                                                    ^
/usr/include/X11/Xlib.h:87:16: note: expanded from macro 'Status'
#define Status int
                ^
/usr/include/w32api/rpcdce.h:142:43: note: to match this '('
   typedef void __RPC_API RPC_OBJECT_INQ_FN(UUID *ObjectUuid,UUID...
                                           ^
/usr/include/w32api/rpcdce.h:471:145: error: expected ')'
   ...__LONG32 KeyVer,void **Key,RPC_STATUS *Status);
                                             ^
/usr/include/X11/Xlib.h:87:16: note: expanded from macro 'Status'
#define Status int
                ^
/usr/include/w32api/rpcdce.h:471:54: note: to match this '('
   typedef void (__RPC_API *RPC_AUTH_KEY_RETRIEVAL_FN)(void 
*Arg,unsigned short...
                                                      ^
/usr/include/w32api/rpcdce.h:513:81: error: expected ')'
   ...int RPC_ENTRY UuidCompare(UUID *Uuid1,UUID *Uuid2,RPC_STATUS *Status);
                                                                    ^
/usr/include/X11/Xlib.h:87:16: note: expanded from macro 'Status'
#define Status int
                ^
/usr/include/w32api/rpcdce.h:513:44: note: to match this '('
   RPCRTAPI signed int RPC_ENTRY UuidCompare(UUID *Uuid1,UUID 
*Uuid2,RPC_STATUS...
                                            ^
/usr/include/w32api/rpcdce.h:515:72: error: expected ')'
   RPCRTAPI int RPC_ENTRY UuidEqual(UUID *Uuid1,UUID *Uuid2,RPC_STATUS 
*Status);
                                                                        ^
/usr/include/X11/Xlib.h:87:16: note: expanded from macro 'Status'
#define Status int
                ^
/usr/include/w32api/rpcdce.h:515:35: note: to match this '('
   RPCRTAPI int RPC_ENTRY UuidEqual(UUID *Uuid1,UUID *Uuid2,RPC_STATUS 
*Status);
                                   ^
/usr/include/w32api/rpcdce.h:516:69: error: expected ')'
   RPCRTAPI unsigned short RPC_ENTRY UuidHash(UUID *Uuid,RPC_STATUS 
*Status);
                                                                     ^
/usr/include/X11/Xlib.h:87:16: note: expanded from macro 'Status'
#define Status int
                ^
/usr/include/w32api/rpcdce.h:516:45: note: to match this '('
   RPCRTAPI unsigned short RPC_ENTRY UuidHash(UUID *Uuid,RPC_STATUS 
*Status);
                                             ^
/usr/include/w32api/rpcdce.h:517:59: error: expected ')'
   RPCRTAPI int RPC_ENTRY UuidIsNil(UUID *Uuid,RPC_STATUS *Status);
                                                           ^
/usr/include/X11/Xlib.h:87:16: note: expanded from macro 'Status'
#define Status int
                ^
/usr/include/w32api/rpcdce.h:517:35: note: to match this '('
   RPCRTAPI int RPC_ENTRY UuidIsNil(UUID *Uuid,RPC_STATUS *Status);
                                   ^
/usr/include/w32api/rpcdce.h:547:140: error: expected ')'
   ...__LONG32 RequestedMgmtOperation,RPC_STATUS *Status);
                                                  ^
/usr/include/X11/Xlib.h:87:16: note: expanded from macro 'Status'
#define Status int
                ^
/usr/include/w32api/rpcdce.h:547:53: note: to match this '('
   typedef int (__RPC_API *RPC_MGMT_AUTHORIZATION_FN)(RPC_BINDING_HANDLE...
                                                     ^
In file included from foo.cxx:2:
In file included from /usr/include/w32api/windows.h:88:
In file included from /usr/include/w32api/rpc.h:70:
In file included from /usr/include/w32api/rpcdce.h:623:
/usr/include/w32api/rpcdcep.h:220:62: error: cannot combine with previous
       'type-name' declaration specifier
   RPCRTAPI __LONG32 RPC_ENTRY I_RpcMapWin32Status(RPC_STATUS Status);
                                                              ^
/usr/include/X11/Xlib.h:87:16: note: expanded from macro 'Status'
#define Status int
                ^
In file included from foo.cxx:2:
In file included from /usr/include/w32api/windows.h:88:
In file included from /usr/include/w32api/rpc.h:87:
/usr/include/w32api/rpcasync.h:118:11: error: cannot combine with previous
       'type-name' declaration specifier
     ULONG Status;
           ^
/usr/include/X11/Xlib.h:87:16: note: expanded from macro 'Status'
#define Status int
                ^
In file included from foo.cxx:2:
In file included from /usr/include/w32api/windows.h:97:
In file included from /usr/include/w32api/winscard.h:10:
In file included from /usr/include/w32api/wtypes.h:8:
In file included from /usr/include/w32api/rpcndr.h:21:
/usr/include/w32api/rpcnsip.h:21:81: error: cannot combine with previous
       'type-name' declaration specifier
   ...RPC_ENTRY I_RpcNsRaiseException(PRPC_MESSAGE Message,RPC_STATUS 
Status);
                                                                      ^
/usr/include/X11/Xlib.h:87:16: note: expanded from macro 'Status'
#define Status int
                ^
In file included from foo.cxx:2:
In file included from /usr/include/w32api/windows.h:97:
In file included from /usr/include/w32api/winscard.h:10:
In file included from /usr/include/w32api/wtypes.h:8:
/usr/include/w32api/rpcndr.h:674:160: error: cannot combine with previous
       'type-name' declaration specifier
   ...*pCommStatus,unsigned __LONG32 *pFaultStatus,RPC_STATUS Status);
                                                              ^
/usr/include/X11/Xlib.h:87:16: note: expanded from macro 'Status'
#define Status int
                ^
In file included from foo.cxx:2:
In file included from /usr/include/w32api/windows.h:102:
/usr/include/w32api/winspool.h:56:11: error: cannot combine with previous
       'type-name' declaration specifier
     DWORD Status;
           ^
/usr/include/X11/Xlib.h:87:16: note: expanded from macro 'Status'
#define Status int
                ^
In file included from foo.cxx:2:
In file included from /usr/include/w32api/windows.h:102:
/usr/include/w32api/winspool.h:80:11: error: cannot combine with previous
       'type-name' declaration specifier
     DWORD Status;
           ^
/usr/include/X11/Xlib.h:87:16: note: expanded from macro 'Status'
#define Status int
                ^
In file included from foo.cxx:2:
In file included from /usr/include/w32api/windows.h:102:
/usr/include/w32api/winspool.h:240:11: error: cannot combine with previous
       'type-name' declaration specifier
     DWORD Status;
           ^
/usr/include/X11/Xlib.h:87:16: note: expanded from macro 'Status'
#define Status int
                ^
In file included from foo.cxx:2:
In file included from /usr/include/w32api/windows.h:102:
/usr/include/w32api/winspool.h:256:11: error: cannot combine with previous
       'type-name' declaration specifier
     DWORD Status;
           ^
/usr/include/X11/Xlib.h:87:16: note: expanded from macro 'Status'
#define Status int
                ^
In file included from foo.cxx:2:
In file included from /usr/include/w32api/windows.h:102:
/usr/include/w32api/winspool.h:282:11: error: cannot combine with previous
       'type-name' declaration specifier
     DWORD Status;
           ^
/usr/include/X11/Xlib.h:87:16: note: expanded from macro 'Status'
#define Status int
                ^
In file included from foo.cxx:2:
In file included from /usr/include/w32api/windows.h:102:
/usr/include/w32api/winspool.h:308:11: error: cannot combine with previous
       'type-name' declaration specifier
     DWORD Status;
           ^
/usr/include/X11/Xlib.h:87:16: note: expanded from macro 'Status'
#define Status int
                ^
17 errors generated.

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