From: "Christian Höltje" Date: 2010-03-24T06:12:21+09:00 Subject: [ruby-core:28906] [Bug #2999] _WIN32 already has tzname and daylight defined. Bug #2999: _WIN32 already has tzname and daylight defined. http://redmine.ruby-lang.org/issues/show/2999 Author: Christian H��ltje Status: Open, Priority: High Category: build ruby -v: 1.9.1-p376 I had to change line 129 from: #if !defined(OS2) && defined(HAVE_TZNAME) to: #if !defined(OS2) && defined(HAVE_TZNAME) && !defined _WIN32 This is under Windows with Visual Studio 8 - 2005. daylight and tzname are both already defined and the new extern's are not compatible with the previous definitions. ---------------------------------------- http://redmine.ruby-lang.org