GNU C vs BCC - huge output file

[azemerov]

Hi,

I build my C++ project (windows DLL) with GNU C and Borland C++.
Everything is fine except huge difference in resulting DLL file size.
GNU C procuces almost 10 times larger file than Borland C (429568 vs
46080)!
I don't belive GNU C is so unoptimized, probably my problem is in
options I use for compiler/linker/dll wrapper.

1) GNU (Dev-Cpp has been used)
g++.exe -c newgen.cpp -o ./obj/newgen.o
-I"C:/Dev-Cpp/lib/gcc/mingw32/3.4.2/include"
-I"C:/Dev-Cpp/include/c++/3.4.2/backward"
-I"C:/Dev-Cpp/include/c++/3.4.2/mingw32"
-I"C:/Dev-Cpp/include/c++/3.4.2"  -I"C:/Dev-Cpp/include"
-DBUILDING_DLL=1   -fno-access-control -O3
... the same for other files in my project ...

windres.exe -i Generator1_private.rc --input-format=rc -o
./obj/Generator1_private.res -O coff

dllwrap.exe --output-def ../../pas/exe/maptool/libgenerator_gnu.def
--driver-name c++ --implib ../../pas/exe/maptool/libgenerator_gnu.a
./obj/newgen.o ./obj/ustring.o ./obj/varstream.o ./obj/bucketlist.o
./obj/generator1_dll.o ./obj/Generator1_private.res -L"C:/Dev-Cpp/lib"
--no-export-all-symbols --add-stdcall-alias  -s  -o
../../pas/exe/maptool/generator_gnu.dll

result file size 429568 bytes

2) BCC55
bcc32 -ec:\wrk\pas\exe\maptool\generator_bcc.dll -DBUILDING_DLL=1 -c -P
-WD -O2 -Vx -Ve -X- -a8 -b- -k- -vi -tWD -tWM- -q -n.\obj
generator1_dll.cpp bucketlist.cpp newgen.cpp ustring.cpp varstream.cpp
ilink32 -q -D"" -aa -Tpd -x -Gn -Gi -M  C0D32.OBJ CW32.LIB IMPORT32.LIB
, c:\wrk\pas\exe\maptool\generator_bcc.dll

result file size 46080 bytes

Thanks,
Alexander Zemerov.