From: Charlie Savage <redmine@...>
Date: 2010-04-08T13:51:42+09:00
Subject: [ruby-core:29314] [Bug #3092] IO Broken with Latest Windows

Issue #3092 has been updated by Charlie Savage.


Hi Usaku,

No, the changes don't fix the warnings.  For example:

cl -nologo -MDd -Zi -W2 -wd4996 -Od  -Zm600 -RTC1 -DRUBY_EXPORT -I. -I.ext/include/i386-mswin32_100 -I./include -I. -I./missing     -Fodir.obj -c -Tcdir.c
dir.c

C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\INCLUDE\errno.h(92) : warning C4005: 'EADDRINUSE' : macro redefinition

 c:\Development\src\ruby\include\ruby/win32.h(444) : see previous definition of 'EADDRINUSE'

Line 443, win32.h:

#ifndef EADDRINUSE
# define EADDRINUSE		WSAEADDRINUSE
#endif

EADDRINUSE is not yet defined, so it gets set to WSAEADDRINUSE. Then *after* this, errno.h is included and overrides the value leading to the error message.

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http://redmine.ruby-lang.org/issues/show/3092

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