Hi, I'm having the exact same problem upgrading from 1.35 to 1.39. Release build runs fine, but debug build asserts as mentioned. I get the assert in a dll which uses boost. Again, reverting to 1.35 works fine. Any help would be appreciated. - Lee. ________________________________ From: boost-users-bounces@lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Andrey Torba Sent: 23 July 2009 14:40 To: boost-users@lists.boost.org Subject: [Boost-users] [boost] upgrade boost 1.33 up to 1.39 -> MCF assertion Hello everybody! When i upgrade boost form 1.33.1 up to 1.39 I get the following assertion failed error message: Debug Assertion Failed! File: F:\dd\vctools\vc7libs\ship\atlmfc\src\mfc\dllinit.cpp Line: 587 ================== void AFXAPI AfxCoreInitModule() { ASSERT(AfxGetModuleState() != AfxGetAppModuleState()); All run ok when i rollback boost. There are breaking changes in boost.Thread http://www.boost.org/doc/libs/1_39_0/doc/html/thread/changes.html since 1.33 Interface of scoped_lock has been changed and boost::mutex now is boost::recursive_mutex. Am i right? Did anybody experiance this problem? Any help is appreciated. -- Regards, Andrey Schneider Trading 4th Floor, 25 Copthall Avenue London EC2R 7BP -------------------------------------------------------- Message from: lee.macdonald@schneidertrading.com Message to: boost-users@lists.boost.org Attached files: 0 This e-mail and any files transmitted with it are confidential, may be legally privileged, and are for the sole use of the intended recipient. Copyright in this e-mail and any accompanying document created by us is owned by us. If you are not the intended recipient of this e-mail or any part of it please telephone our IT Department at the number shown above or by e-mail at info@schneidertrading.com. You should not use or disclose to any other person the contents of this e-mail or its attachments (if any), nor take copies. This e-mail is not a representation or warranty and is not intended nor should it be taken to create any legal relations, contractual or otherwise. Schneider Trading Associates Ltd (Registration No. 3692131) is incorporated in England and Wales and the registered office is at 25 Copthall Avenue, London EC2R 7BP. The company is authorised and regulated by the Financial Services Authority