ICE in gcc 2.95.2 [mingw]

["Priem, Gregory L" <gregory dot l dot priem at intel dot com>]

I am trying to use COM using gcc 2.95.2 under mingw [packaged by Mumit
Khan], and am getting an ICE. 

[I hope I RTFM'd enough to not waste anyone's time!]

g++ -v
Reading specs from
e:\gcc-2.95.2\bin\..\lib\gcc-lib\i386-mingw32msvc\2.95.2\specs
gcc version 2.95.2 19991024 (release)

system:
MS Windows NT4 SP6a, 128M RAM

The minimized code I have is [full bzip2'ed .ii file is attached, so I did
not attempt to minimize win32 headers]:

------------ temp.cpp ----------------
#include "temp.h"

-------- end temp.cpp -------------

------------ temp.h -----------------
#include <objbase.h>
#include <oleidl.h>

class CUnknown 
{
public:
	// Constructor
	CUnknown(IUnknown* pUnknownOuter) ;

	// Destructor
	virtual ~CUnknown() ;

} ;

#ifndef NOICE
class temp : public CUnknown,
             public ISupportErrorInfo
#else
class temp : public ISupportErrorInfo,
             public CUnknown
#endif
{
  
public:
  // Constructor
  temp(IUnknown* pUnknownOuter) ;
  
  // Destructor
  ~temp() ;
  
} ;

-----------------end temp.h------------------


Output from code, as shown:

F:\temp>g++ -v --save-temps -fvtable-thunks -c temp.cpp
Reading specs from
e:\gcc-2.95.2\bin\..\lib\gcc-lib\i386-mingw32msvc\2.95.2\specs
gcc version 2.95.2 19991024 (release)
 e:\gcc-2.95.2\bin\..\lib\gcc-lib\i386-mingw32msvc\2.95.2\cpp.exe -lang-c++
-v -iprefix e:\gcc-2.95.2\bin\..\lib/gcc-lib/i386-mingw32msvc\2.95.2\
-D__GNUC__=2 -D__GNUG__=2 -D__GNUC_MINOR__=95 -D__cplusplus -Di386 -D_WIN32
-DWIN32 -D__WIN32__ -D__MINGW32__=0.2 -D__MSVCRT__ -DWINNT -D_X86_=1
-D__STDC__=1 -D__stdcall=__attribute__((__stdcall__))
-D_stdcall=__attribute__((__stdcall__)) -D__cdecl=__attribute__((__cdecl__))
-D__declspec(x)=__attribute__((x)) -D__i386__ -D_WIN32 -D__WIN32__
-D__WIN32__ -D__MINGW32__=0.2 -D__MSVCRT__ -D__WINNT__ -D_X86_=1
-D__STDC__=1 -D__stdcall=__attribute__((__stdcall__))
-D___stdcall__=__attribute__((__stdcall__))
-D__cdecl=__attribute__((__cdecl__)) -D__declspec(x)=__attribute__((x))
-D__i386 -D__WIN32 -D__WINNT -D___stdcall=__attribute__((__stdcall__))
-Asystem(winnt) -Acpu(i386) -Amachine(i386) -D__EXCEPTIONS -remap
-Acpu(i386) -Amachine(i386) -Di386 -D__i386 -D__i386__ temp.cpp temp.ii
GNU CPP version 2.95.2 19991024 (release) (80386, BSD syntax)
#include "..." search starts here:
#include <...> search starts here:
 
e:\gcc-2.95.2\bin\..\lib\gcc-lib\i386-mingw32msvc\2.95.2\..\..\..\..\include
\g++-3
 
e:\gcc-2.95.2\bin\..\lib\gcc-lib\i386-mingw32msvc\2.95.2\..\..\..\..\include
 
e:\gcc-2.95.2\bin\..\lib\gcc-lib\i386-mingw32msvc\2.95.2\..\..\..\..\i386-mi
ngw32msvc\include
 e:\gcc-2.95.2\bin\..\lib\gcc-lib\i386-mingw32msvc\2.95.2\include
End of search list.
The following default directories have been omitted from the search path:
 /usr/local/i386-mingw32/include
End of omitted list.
 e:\gcc-2.95.2\bin\..\lib\gcc-lib\i386-mingw32msvc\2.95.2\cc1plus.exe
temp.ii -quiet -dumpbase temp.cc -version -fvtable-thunks -o temp.s
GNU C++ version 2.95.2 19991024 (release) (i386-mingw32msvc) compiled by GNU
C version 2.95.2 19991024 (release).
In file included from temp.cpp:7:
temp.h:33: Internal compiler error.
temp.h:33: Please submit a full bug report.
temp.h:33: See <URL:http://www.gnu.org/software/gcc/faq.html#bugreport> for
instructions.


If NOICE is defined, then it compiles fine. [ie: g++ -v --save-temps
-fvtable-thunks -c -DNOICE temp.cpp ]

I assume that the ICE is somehow due to the COM class not being listed first
in the inheritance chain. Looking through the archives, I saw
http://gcc.gnu.org/ml/gcc-patches/1999-06/msg00274.html which I thought
would give me an error message if the COM interface were not the left-most,
so perhaps this is not the issue. [Or maybe this made it into the mainline,
but not the 2.95 branch?]

tnx
-greg priem

 <<temp.ii.bz2>>

temp.ii.bz2