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Date: Sun, 20 Oct 2013 09:50:19 +0800
From: JonY <10walls AT gmail DOT com>
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To: cygwin AT cygwin DOT com
Subject: Re: g++ -m32 option causes an error
References: <bug-58799-23798 AT http DOT gcc DOT gnu DOT org/bugzilla/> <bug-58799-23798-jpgPVpVU2B AT http DOT gcc DOT gnu DOT org/bugzilla/> <1382135640 DOT 94420 DOT YahooMailNeo AT web181306 DOT mail DOT ne1 DOT yahoo DOT com> <1382135893 DOT 8524 DOT YahooMailNeo AT web181304 DOT mail DOT ne1 DOT yahoo DOT com> <1382210427 DOT 30799 DOT YahooMailNeo AT web181305 DOT mail DOT ne1 DOT yahoo DOT com>
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On 10/20/2013 03:20, Arthur Schwarz wrote:
>=20
> What I am trying to do is to cross-compile to a 32-bit system and get 4-b=
yte longs, 8-byte doubles and 4-byte pointers instead of 8-byte longs, 16-b=
yte doubles and pointers. I have 11 compilers downloaded as part of the sta=
ndard download from cygwin, with some being duplicates. Some of the compile=
r names seemed to be cross-compiled to a 32-bit CPU, and in checking this o=
ut this guess turns out to be untrue. What I want is the compiler to genera=
te 32-bit code loadable on a 64-bit and a 32-bit platform. This is possible=
 using the 32-bit cygwin compilers.
>=20=20
>  I am using Netbeans as my development IDE. The compilers used and the re=
sults of compilation are given below.
>=20=20
>  I don't understand why there is not x86_64-pc-cygwin assembler and I don=
't understand why the builds link to the wrong libraries. I'm going to cros=
s-mail this letter to Netbeans to see if they can give some help.
>=20=20
>  Sorry about the delay, I've trying to find out what is going on.
>=20=20

x86_64-pc-cygwin does 64bit Cygwin, it does not support multilib nor
-m32, it will not do so in the future either, so don't argue about
adding support. "g++" in 64bit Cygwin targets 64bit Cygwin.

Use 32bit Cygwin or the 32 Cygwin cross compiler in 64bit Cygwin
instead. I don't really understand why this is so hard to grasp.



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