Huh? What's the point? You are aware that rossym requires binaries built
with GCC?
Am 20.09.2013 00:13, schrieb spetreolle(a)svn.reactos.org:
  Author: spetreolle
 Date: Thu Sep 19 22:13:46 2013
 New Revision: 60221
 URL: 
http://svn.reactos.org/svn/reactos?rev=60221&view=rev
 Log:
 [ROSSYM]
 Enable rossym build on MSVC.
 Removed:
     trunk/reactos/lib/rossym/dummy.c
     trunk/reactos/lib/rossym_new/dummy.c
 Modified:
     trunk/reactos/lib/rossym/CMakeLists.txt
     trunk/reactos/lib/rossym_new/CMakeLists.txt
 Modified: trunk/reactos/lib/rossym/CMakeLists.txt
 URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/rossym/CMakeLists.txt?…
 ==============================================================================
 --- trunk/reactos/lib/rossym/CMakeLists.txt    [iso-8859-1] (original)
 +++ trunk/reactos/lib/rossym/CMakeLists.txt    [iso-8859-1] Thu Sep 19 22:13:46 2013
 @@ -1,19 +1,15 @@
 -if(MSVC)
 -    add_library(rossym dummy.c)
 -else()
 -    add_definitions(-D_NTSYSTEM_)
 -    list(APPEND SOURCE
 -        delete.c
 -        find.c
 -        fromfile.c
 -        frommem.c
 -        fromraw.c
 -        getraw.c
 -        init.c
 -        initkm.c
 -        initum.c
 -        zwfile.c)
 -    add_library(rossym ${SOURCE})
 -    add_dependencies(rossym psdk bugcodes)
 -endif()
 +add_definitions(-D_NTSYSTEM_)
 +list(APPEND SOURCE
 +    delete.c
 +    find.c
 +    fromfile.c
 +    frommem.c
 +    fromraw.c
 +    getraw.c
 +    init.c
 +    initkm.c
 +    initum.c
 +    zwfile.c)
 +add_library(rossym ${SOURCE})
 +add_dependencies(rossym psdk bugcodes)
 Removed: trunk/reactos/lib/rossym/dummy.c
 URL: 
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/rossym/dummy.c?rev=602…
 ==============================================================================
 --- trunk/reactos/lib/rossym/dummy.c   [iso-8859-1] (original)
 +++ trunk/reactos/lib/rossym/dummy.c   (removed)
 @@ -1,32 +0,0 @@
 -
 -#include <ntddk.h>
 -#include <reactos/rossym.h>
 -
 -#define NDEBUG
 -#include <debug.h>
 -
 -BOOLEAN
 -RosSymCreateFromFile(PVOID FileContext, PROSSYM_INFO *RosSymInfo)
 -{
 -    return FALSE;
 -}
 -
 -VOID
 -RosSymDelete(PROSSYM_INFO RosSymInfo)
 -{
 -}
 -
 -BOOLEAN
 -RosSymGetAddressInformation(PROSSYM_INFO RosSymInfo,
 -                            ULONG_PTR RelativeAddress,
 -                            ULONG *LineNumber,
 -                            char *FileName,
 -                            char *FunctionName)
 -{
 -    return FALSE;
 -}
 -
 -VOID
 -RosSymInitKernelMode(VOID)
 -{
 -}
 Modified: trunk/reactos/lib/rossym_new/CMakeLists.txt
 URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/rossym_new/CMakeLists.…
 ==============================================================================
 --- trunk/reactos/lib/rossym_new/CMakeLists.txt        [iso-8859-1] (original)
 +++ trunk/reactos/lib/rossym_new/CMakeLists.txt        [iso-8859-1] Thu Sep 19 22:13:46
2013
 @@ -1,26 +1,22 @@
 -if(MSVC)
 -    add_library(rossym dummy.c)
 -else()
 -    add_definitions(-D_NTSYSTEM_)
 -    list(APPEND SOURCE
 -        delete.c
 -        dwarfabbrev.c
 -        dwarfaranges.c
 -        dwarfcfa.c
 -        dwarfget.c
 -        dwarfinfo.c
 -        dwarfopen.c
 -        dwarfpc.c
 -        dwarfpubnames.c
 -        find.c
 -        fromfile.c
 -        init.c
 -        initum.c
 -        pe.c
 -        zwfile.c)
 -    add_library(rossym ${SOURCE})
 -    add_pch(rossym precomp.h)
 -    add_dependencies(rossym psdk bugcodes)
 -    allow_warnings(rossym)
 -endif()
 +add_definitions(-D_NTSYSTEM_)
 +list(APPEND SOURCE
 +    delete.c
 +    dwarfabbrev.c
 +    dwarfaranges.c
 +    dwarfcfa.c
 +    dwarfget.c
 +    dwarfinfo.c
 +    dwarfopen.c
 +    dwarfpc.c
 +    dwarfpubnames.c
 +    find.c
 +    fromfile.c
 +    init.c
 +    initum.c
 +    pe.c
 +    zwfile.c)
 +add_library(rossym ${SOURCE})
 +add_pch(rossym precomp.h)
 +add_dependencies(rossym psdk bugcodes)
 +allow_warnings(rossym)
 Removed: trunk/reactos/lib/rossym_new/dummy.c
 URL: 
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/rossym_new/dummy.c?rev…
 ==============================================================================
 --- trunk/reactos/lib/rossym_new/dummy.c       [iso-8859-1] (original)
 +++ trunk/reactos/lib/rossym_new/dummy.c       (removed)
 @@ -1,60 +0,0 @@
 -
 -#include <ntddk.h>
 -#include <reactos/rossym.h>
 -
 -#define NDEBUG
 -#include <debug.h>
 -
 -BOOLEAN
 -RosSymCreateFromFile(PVOID FileContext, PROSSYM_INFO *RosSymInfo)
 -{
 -    UNIMPLEMENTED;
 -    return FALSE;
 -}
 -
 -VOID
 -RosSymDelete(PROSSYM_INFO RosSymInfo)
 -{
 -    UNIMPLEMENTED;
 -}
 -
 -VOID
 -RosSymFreeInfo(PROSSYM_LINEINFO LineInfo)
 -{
 -    UNIMPLEMENTED;
 -}
 -
 -BOOLEAN
 -RosSymGetAddressInformation(PROSSYM_INFO RosSymInfo,
 -                            ULONG_PTR RelativeAddress,
 -                            PROSSYM_LINEINFO RosSymLineInfo)
 -{
 -    UNIMPLEMENTED;
 -    return FALSE;
 -}
 -
 -VOID
 -RosSymInit(PROSSYM_CALLBACKS Callbacks)
 -{
 -    UNIMPLEMENTED;
 -}
 -
 -VOID
 -RosSymInitKernelMode(VOID)
 -{
 -    UNIMPLEMENTED;
 -}
 -
 -BOOLEAN
 -RosSymAggregate(PROSSYM_INFO RosSymInfo, PCHAR Type, PROSSYM_AGGREGATE Aggregate)
 -{
 -    UNIMPLEMENTED;
 -    return FALSE;
 -}
 -
 -VOID
 -RosSymFreeAggregate(PROSSYM_AGGREGATE Aggregate)
 -{
 -    UNIMPLEMENTED;
 -}
 -