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Date: Thu, 5 Feb 2009 05:04:33 -0800 (PST)
From: rajeevs <rajeevlochansahu AT gmail DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: GCC compiler -m64 option in cygwin
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Hi There,

please go through the followings for the problem:

1)      I want to create a 64 bit DLL using Cygwin in Windows Serever 2003
64 bit platform.
2)      I am using Cygwin to run the make file
3)      In the make file I have a macro =E2=80=9CCFLAGS=E2=80=9D where gave=
 the option
=E2=80=9C-m64=E2=80=9D in the make file for 64 bit build=20
4)      But when I use this option I am getting an error like:

$ make -f makefile_64
g++ -c -DWIN64 -D"__int64=3Dlong long" -trigraphs -I../include
-IC:/Progra~1/Java/jdk1.5.0_10/include
-IC:/Progra~1/Java/jdk1.5.0_10/include/win32 -mno-cygwin -m64 Abc.C -o Abc.o
Abc.C:1: sorry, unimplemented: 64-bit mode not compiled in
make: *** [Abc.o] Error 1

5)      The main thing is that I don=E2=80=99t know exactly what should be =
the
option we have to give under cygwin for building a 64 bit DLL (though I have
used =E2=80=9C-m64=E2=80=9D option), but  in Linux if you use this option, =
you=E2=80=99ll get the 64
bit .SO file!!!

i tried alot but tillnow didn't get the solution.

Please suggest me some alternative options if anybody have.

Thanks in advance!
Rajeev
--=20
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