R devel - Mar 2008 - Problem creating Makefile.win to build package using Visual C++

Dear all,

For testing purposes I have created a package "MyClass" containing C++
classes, which runs "R CMD check" on MacOS X and Linux w/o warnings.
Now
I want to create a Windows binary using MS Visual C++.

Using the "Makefile.win" shown below, I can compile the source code
with
Visual C++ using:
 >NMAKE /f "Makefile.win" CFG="Release"

However, when I modified the $(MYDLL) part to include "MyClass.def",
and
did:
 >R CMD INSTALL -l C:/home/CRAN/myRlib MyClass_0.3.2.tar.gz
I got the build error:
---------- Making package MyClass ------------
  adding build stamp to DESCRIPTION
  installing NAMESPACE file and metadata
  running src/Makefile.win ...
Makefile.win:3: *** missing separator.  Stop.
make[2]: *** [srcDynlib] Error 2
make[1]: *** [all] Error 2
make: *** [pkg-MyClass] Error 2

I have tried the following modification to include "MyClass.def":
$(MYDLL):     $(MYOBJ) $(RLIB) $(MAINR).def
              $(LD) $(SOFLAGS) $(LDFLAGS) $(MYOBJ) $(OutPutOpt)$@

Please can someone tell me what might be wrong?

I know from the readme file that I need to do something like:
   link /dll /def:mypkg.def /out:mypkg.dll *.obj Rdll.lib
but it is not clear to me how to convert this example to my makefile?

Thank you in advance
Best regards
Christian
_._._._._._._._._._._._._._._._
C.h.i.s.t.i.a.n S.t.r.a.t.o.w.a
V.i.e.n.n.a       A.u.s.t.r.i.a
e.m.a.i.l:    cstrato at aon.at
_._._._._._._._._._._._._._._._


Makefile.win (adapted from another program):
!IF "$(CFG)" != "Release" && "$(CFG)" !=
"Debug"
!MESSAGE Invalid configuration "$(CFG)" specified.
!ENDIF

ObjSuf        = obj
SrcSuf        = cxx
ExeSuf        = .exe
DllSuf        = dll
OutPutOpt     = -out:

# Win32 system with Microsoft Visual C/C++
!include <win32.mak>
CC            = $(cc)
CXX           = $(cc)
CXXFLAGS      = $(cvarsdll) -EHsc -nologo -GR -DWIN32 \
                -DVISUAL_CPLUSPLUS -D_WINDOWS
LD            = $(link)

!IF  "$(CFG)" == "Release"
CXXOPT        = -O2 -MD
LDOPT         = -opt:ref
!ELSEIF  "$(CFG)" == "Debug"
CXXOPT        = -Z7 -MDd
LDOPT         = -debug
!ENDIF

!if ("$(_NMAKE_VER)" == "8.00.50727.42") ||
("$(_NMAKE_VER)" ==
"8.00.50727.762") || ("$(_NMAKE_VER)" ==
"9.00.21022.08")
MT_EXE        = mt -nologo -manifest $@.manifest -outputresource:$@;1
MT_DLL        = mt -nologo -manifest $@.manifest -outputresource:$@;2
EXTRAFLAGS    = -D_CRT_SECURE_NO_DEPRECATE
!else
MT_EXE        MT_DLL        EXTRAFLAGS    = -G5
!endif

LDFLAGS       = $(LDOPT) $(conlflags) -nologo
SOFLAGS       = $(dlllflags:-pdb:none=)

#------------------------------------------------------------------------------

R_HOME       = C:\\PROGRA~1\\R\\R-2.6.2
R_INCLUDES   = $(R_HOME)\\include         
RLIB         = $(R_HOME)\\src\\gnuwin32\\Rdll.lib

#------------------------------------------------------------------------------

MAIN  = MyClassA
MAINR = MyClass

MYHDR       = $(MAIN).h rwrapper.h
MYOBJ       = $(MAIN).$(ObjSuf) rwrapper.$(ObjSuf)
MYSRC       = $(MAIN).$(SrcSuf) rwrapper.$(SrcSuf)
MYDLL       = $(MAINR).$(DllSuf)

OBJS        = $(MYOBJ)
PROGRAMS    = $(MYDLL)

all:          $(PROGRAMS)

$(MYDLL):     $(MYOBJ)
              $(LD) $(SOFLAGS) $(LDFLAGS) $(MYOBJ) $(OutPutOpt)$@
              $(MT_DLL)

$(MAIN).$(ObjSuf): $(MYHDR)

.$(SrcSuf).$(ObjSuf):
        $(CXX) $(CXXFLAGS) $(EXTRAFLAGS) $(CXXOPT) -c $<

clean:
              @del *.obj  *.def *.exp *.d *.log .def *.pdb *.ilk *.manifest

distclean:      clean
       @del *.exe *.ps *.lib *.dll