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Multithreaded DLLs and Debug vs Release

Jamin Grey · 2013-02-13T23:08:32

I'm using MinGW 4.7.2 When compiling DLLs, a DLL can either be single-threaded or multithreaded, right? And it can either be a debug or release build, right? When compiling an executable, every DLL connected to it must be the same thread type (single vs multithreaded) and the same build type (debug vs release), correct? I've recently (~1 month ago) upgraded my compiler to the latest version and rebuilt all the third-party libraries I use. I'm receiving really weird crashes during the static initialization phase. Currently I'm crashing in the standard <iostream> header at this line: // For construction of filebuffers for cout, cin, cerr, clog et. al. static ios_base::Init __ioinit;I've built the Boost libraries as 'multithreaded DLLs', and I don't know if I built the other third-party libraries with that or not.What is the difference between 'multithreaded DLLs' and regular DLLs? How do I check if a DLL is multithreaded or not?