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Date: Fri, 07 Dec 2012 21:21:04 +0100
From: marco atzeri <marco DOT atzeri AT gmail DOT com>
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Subject: Re: gcc -ansi produces unexpected floating point result
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On 12/7/2012 8:25 PM, Paul Edwards wrote:
>> try gcc4, gcc3 is obsolete.
>
> Hi Marco.
>
> Unfortunately gcc-4 gives this error:
>
> C:\devel\bwbasic>gcc-4 -mno-cygwin -ansi zatest.c
> gcc-4: The -mno-cygwin flag has been removed; use a mingw-targeted
> cross-compiler.

Hi Paul,
gcc4 is for building on cygwin for cygwin.

-mno-cygwin was for building on cygwin for NO cygwin, like mingw.
It is now a deprecated tweak.

For that scope are now available 2 cross-compilers
see packages:

   mingw-gcc-core
   mingw64-i686-gcc-core

both as 4.5.x versions

> I'm also including the results of ldd on the gcc3 compile:
>
> C:\devel\bwbasic>ldd a.exe
>         ntdll.dll => /cygdrive/c/Windows/SysWOW64/ntdll.dll (0x77e70000)
>         kernel32.dll => /cygdrive/c/Windows/syswow64/kernel32.dll
> (0x75f50000)
>         KERNELBASE.dll => /cygdrive/c/Windows/syswow64/KERNELBASE.dll
> (0x75820000)
>         msvcrt.dll => /cygdrive/c/Windows/syswow64/msvcrt.dll (0x75a60000)
>
> It looks to me like I have done everything correctly, and it would
> be good if gcc 3 still worked. gcc 3 is important to me for other
> reasons (ie it is the only thing that supports the i370 target).
>
> I don't have any other platform to try gcc 3.4.4 out on.
>
> Thanks.  Paul.

Regards
Marco


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