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Date: | Wed, 9 Nov 2005 17:04:08 +0100 |
From: | Thomas Porschberg <thomas DOT porschberg AT osp-dd DOT de> |
To: | cygwin AT cygwin DOT com |
Subject: | boost program_options library with cygwin |
Message-ID: | <20051109160408.GB5162@porschberg.osp-dd.de> |
Mail-Followup-To: | cygwin AT cygwin DOT com |
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X-Operating-System: | Linux porschberg 2.6.11.4-20a-default |
User-Agent: | Mutt/1.5.10i |
Hi, I have a problem when using the boost::program::options library under cygwin in conjunction with building a application which I compile with the "-mno-cygwin -mwindows" options. I get a "undefined reference error to _environ" at link time. I guess the problem arised because boost libraries (version 1.33) was built as an cygwin application and I want build a pure windows application with this library. On the other hand I already linked another boost library (boost::filesystem) against my application and got no error ?! I now built the boost libraries under mingw by myself and got a boost_program_options-gcc-1_33.dll and boost_program_options-gcc-mt-1_33.lib. I replaced the cygwin libboost_program_options-gcc-mt-s.a with my boost_program_options-gcc-mt-1_33.lib (renamed boost_program_options-gcc-mt-1_33.lib to libboost_program_options-gcc-mt-s.a), copied the dll to C:\WINDOWS\system32 and it worked ! This is of course nice but can someone give an explanation ? Thomas -- -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
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