Hi, I have a small Perl program that utilize module Win32::API::Callback. This module works properly if I downloaded this module from CPAN and compile by myself. There occurs a problem if I get it from binary package perl-Win32-API downloaded by Cygwin setup program. I then tried to figure this problem out by downloading source module and compile by myself. I found a simple flow to duplicate the fail with the following sequence.
----- Cut here ----- % cd /usr/src/perl-Win32-API-0.84-1.src % cygport perl-Win32-API.cygport prep compile : % cd perl-Win32-API-0.84-1.x86_64/build/ % mv API_test64.dll API_test64.dll.lnk; cp API_test64.dll.lnk API_test64.dll % mv rtc64.dll rtc64.dll.lnk; cp rtc64.dll.lnk rtc64.dll % cd Callback % make test : (Failed test 'callback function works' at t/02_Callback.t line 58.) : % touch Callback.c % make % make test : (All tests passed) : ----- Cut here ----- The two lines of commands "mv xxxx; cp xxx" are to dereference the symbolic links of testing-needed dll files because Win32::API::LoadLibrary() seems not be able to resolve Cygwin symbolic link. Two "make test" commands are shown above. The first test fails at 02_Callback.t line 75. After fail, a force recompile of the Callback.dll module is done by touch and make. Doing "make test" again, this time all test items passed. By checking the gcc compile option, I found there is a gcc option "-fno-stack-protector" provided when I compile this module by myself, while the option is removed when I compile with cygport. If I try manually compiling without this option, the same problem occurs. The host system is Windows7. Cygwin dll is 64bit version 2.10.0-1. wish it can be solved soon in next package release. Thanks, SJ <div id="DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><br /> <table style="border-top: 1px solid #D3D4DE;"> <tr> <td style="width: 55px; padding-top: 18px;"><a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail" target="_blank"><img src="https://ipmcdn.avast.com/images/icons/icon-envelope-tick-round-orange-animated-no-repeat-v1.gif" alt="" width="46" height="29" style="width: 46px; height: 29px;" /></a></td> <td style="width: 470px; padding-top: 17px; color: #41424e; font-size: 13px; font-family: Arial, Helvetica, sans-serif; line-height: 18px;">不含病毒。<a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail" target="_blank" style="color: #4453ea;">www.avast.com</a> </td> </tr> </table> <a href="#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2" width="1" height="1"></a></div> -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple