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From: | Bob Friesenhahn |
Subject: | Re: Why configure failed to search libws2_32.a in MinGW+MSYS ? |
Date: | Fri, 27 Dec 2013 17:18:53 -0600 (CST) |
User-agent: | Alpine 2.01 (GSO 1266 2009-07-14) |
On Fri, 27 Dec 2013, Guo Leaveye wrote:
checking dependency style of gcc... gcc3 checking for WSAGetLastError in -lws2_32... no checking for WSAGetLastError in -llibws2_32... no configure: creating ./config.status config.status: creating Makefile config.status: executing depfiles commandsNote that, (1) both library libws2_32.a check report `no', and (2) the compiler is exactly my simulation target `gcc'. I know that I can add a check into configure.ac to examine whether building in mingw or cygwin, but is this checking supposed to be fully examination for the real build environment ? If it works fine, LIB variable should be full filled with all required library link options. If there a simple way by adjust my MSYS+MinGW environment to make autoconf works, please tell me.
Look in the generated config.log for the errors produced while testing for WSAGetLastError. The errors may provide a clue as to what has actually gone wrong and lead to fixing the problem. Autoconf tests for library functions by linking a small test program. Sometimes it is necessary to supply additional libraries in order to successfully link with a library.
Bob -- Bob Friesenhahn address@hidden, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
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