[Mingw-users] dlltool and dllwrap

[Edmund Ng <edm...@sc...>]

Hi folks,

I am trying to compile the excel dll (cdll.c) provided by Mumit.  I am
compiling the file on Solaris using a cross compiler, which from what I
understand should create a dll that loads into excel.  I've tried
creating simple programs on the Solaris that run on NT so I believe that
the cross compiler is functional.

I used the following makefile, which is just a slight modification of
what Mumit had in the Makefile.nocygwin:



#
# Makefile for Cygwin in -mno-cygwin mode. This builds a DLL that is
# independent of Cygwin DLL and only depends on MS CRTDLL runtime.
#
# If you want to use Mingw32 gcc, then use the makeit.bat file instead.
#
CC = i386-mingw32-gcc

# The root directory for mingw-extra package. You can get this package
# from the same place where you downloaded egcs-1.1.2-cygb20 from.
# You should also read the -mno-cygwin howto available from:
#  http://www.xraylith.wisc.edu/~khan/software/gnu-win32/
#
# MINGW_EXTRA_ROOT = /usr/local/mingw-extra
# MINGW_INCLUDES = -I$(MINGW_EXTRA_ROOT)/include
# MINGW_LIBDIRS = -I$(MINGW_EXTRA_ROOT)/lib

DEBUG = -g -O2
# The -mrtd flag tells the compiler to use the PASCAL or "stdcall"
calling
# convention required by VBA/Excel/etc.
CFLAGS = -mrtd $(DEBUG)
CPPFLAGS = $(MINGW_INCLUDES)

AS = i386-mingw32-as
DLLTOOL = i386-mingw32-dlltool
DLLWRAP = i386-mingw32-dllwrap

#
# Various targets to build.
#
DLL_NAME = cdll.dll
DLL_EXP_DEF = cdll.def

all: $(DLL_NAME)

#
# sources, objects, etc.
#
SRCS  = $(wildcard *.c)
OBJS := $(OBJS:.c=.o)

#
# DLL related variables. These are used when building the DLL. See
later.
#

# any special flags that you need to pass to the F77 compiler when
building
# the DLL. (lots of software need _DLL defined).
DLL_CFLAGS = -DBUILDING_DLL=1
# This is where you pass linker flags, such as library search path,
alternate
# entry point, etc. The -s flag strips the final DLL.
DLL_LDFLAGS = -s
# any extra libraries that your DLL may depend on.
DLL_LDLIBS =

#
# your sources etc that go into the DLL.
#
DLL_SRCS = cdll.c
DLL_OBJS = cdll.o

###
#
# Making DLL
#
###

#
# Note that we let dllwrap create both the DEF and IMPORT library in
# one shot. No need to run dlltool anymore.
#
DLLWRAP_FLAGS = --export-all --output-def $(DLL_EXP_DEF)    \
         --target=i386-mingw32 --driver-name $(CC)

$(DLL_NAME) $(DLL_EXP_DEF): $(DLL_OBJS)
 $(DLLWRAP) $(DLLWRAP_FLAGS) -o $(DLL_NAME) \
     $(DLL_OBJS) $(DLL_LDFLAGS) $(DLL_LDLIBS)

#
# dependencies.
#

fdll.o: fdll.c

#
# default rules for building DLL objects. Note that client programs
(ie.,
# the ones that *use* the DLL) have to be compiled without the
DLL_CFLAGS
# flags.
#
.c.o:
 $(CC) -c $(CPPFLAGS) $(DLL_CFLAGS) $(CFLAGS) -o $@ $<

clean:
 -rm -f $(OBJS) $(DLL_OBJS) $(DLL_NAME) $(DLL_EXP_DEF)



but when I compile the program, I get the following problem:


 % make
i386-mingw32-dllwrap --export-all --output-def cdll.def
--target=i386-mingw32 --driver-name i386-mingw32-gcc -o cdll.dll \
    cdll.o  -s
i386-mingw32-dllwrap: no export definition file provided
i386-mingw32-dllwrap: creating one, but that may not be what you want

Cannot reallocate 2030043136 bytes
make: *** [cdll.dll] Error 1


I'm stumped.  Isn't dllwrap supposed to create the cdll.def file by
calling dlltool?  And what is the deal with the cannot reallocate bytes
statement?


Thanx in advance,


Edmund