X-Recipient: archive-cygwin@delorie.com X-Spam-Check-By: sourceware.org Message-ID: <4898AB50.BB90CA66@dessent.net> Date: Tue, 05 Aug 2008 12:34:40 -0700 From: Brian Dessent X-Mailer: Mozilla 4.79 [en] (Windows NT 5.0; U) MIME-Version: 1.0 To: cygwin@cygwin.com Subject: Re: compilation under cygwin References: <1217938667.559f6e7cm1kogler@edu.uni-klu.ac.at> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Reply-To: cygwin@cygwin.com Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Marian Kogler wrote: > LIBS = -lpthread -lcurl -lcurlpp -lboost_thread-gcc-mt -lboost_regex-gcc-mt -lstdc++ -lws2_32 -lxml2 -lssl -lcrypto -lws2_32 is a red flag. It should not be used from a Cygwin app, because it indicates that something is trying to use the Winsock API. This is not proper with Cygwin programs, which should use the POSIX style of sockets and not the Win32 API. > /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../include/w32api/winsock2.h:109: error: redefinition of `struct timeval' > /usr/include/sys/time.h:16: error: previous definition of `struct timeval' > /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../include/w32api/winsock2.h:128: error: redefinition of `struct linger' You're getting a bunch of errors because incluing winsock2.h causes lots of namespace clashes. And how could it not? It provides a different and incompatible set of definitions for the sockets API which is not compatible with the standard POSIX definitions in the Cygwin headers. Again: the problem is that you should not attempt to use the Winsock API from a Cygwin application. Brian -- 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/