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Subject:	Re: i686-XXX-mingw32 compilers and __MINGW32_MINOR_VERSION macro: 3.18 or 3.11?
From:	"Yaakov (Cygwin/X)" <yselkowitz AT users DOT sourceforge DOT net>
To:	cygwin <cygwin AT cygwin DOT com>
Date:	Thu, 18 Aug 2011 12:00:30 -0500
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On Thu, 2011-08-18 at 07:44 +0200, Frédéric Bron wrote:
> Using cygwin 1.7.9(0.237/5/3) 2011-03-29 10:10.
> 
> The following program:
> 
> #include <iostream>
> int main() {
>         std::cout<<__MINGW32_MAJOR_VERSION<<'.'<<__MINGW32_MINOR_VERSION<<'\n';
>         return 0;
> }
> 
> outputs:
> - 3.18 when built with i686-pc-mingw32-g++
> - 3.11 when built with i686-w64-mingw32-g++
> why?
> I have mingw-runtime version 3.18 installed. Is it used only by i686-pc-mingw32?
> 
> I found that:
> $ grep -r "#define *__MINGW32_MINOR_VERSION" /usr/i686-pc-mingw32/
> /usr/i686-pc-mingw32/sys-root/mingw/include/_mingw.h:#define
> __MINGW32_MINOR_VERSION     18
> and
> $ grep -r "#define *__MINGW32_MINOR_VERSION" /usr/i686-w64-mingw32/
> /usr/i686-w64-mingw32/sys-root/mingw/include/_mingw_mac.h:#define
> __MINGW32_MINOR_VERSION 11
> 
> This seems to be one of the reasons that prevents me to use boost on cygwin 1.7.

If you are using a mingw* compiler, then you're not "using" Boost on
Cygwin.  If you really want to build with Boost on Cygwin, install
libboost-devel and its dependencies.


Yaakov



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