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Date: Wed, 05 Oct 2011 22:48:19 -0400
From: mjamesb <mjamesb>
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Subject: Re: 64 bit codes
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Date: 2011-10-05T22:48:19-04:00
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>> P.S. I'm not on Win64 right now, so I can't honestly say I've tested
>> MinGW-64 / Ada there (assuming it exists, oops). But here's
>> hoping.  ;-)
>
> Well, they (MinGW-w64) do mention Ada on their website, but apparently
> the only Ada toolset(s) from them are Cygwin-hosted (i.e., installed
> via Cygwin's setup.exe) and apparently rarely used by them. So the
> Win64-targeted version (GCC 4.5.3-3) doesn't work (fails to link,
> undefined reference to gnat_eh_blahblah in libgnat.a), yet the i686
> (32-bit) one works fine (only tested simple "hello world"). I've filed
> a bug report on SourceForge.
>
> Not exactly what you wanted to hear, but better than nothing.   ;-)

MinGW-w64 "Ada support" thread at:

  http://sourceforge.net/projects/mingw-w64/forums/forum/723797/topic/4368923

has follow-up pointing to:

  http://ya-mingw64.sourceforge.net/

With this, gnatmake compiles HelloWorld which executes successfully as 64-bit on 64-bit Win7.

Yay!

  - mjamesb