The changelog snippet given above doesn't explain how this bug was fixed: gcc-mingw-w64 now uses the upstream default exception handling (SJLJ for 32-bit Windows, SEH for 64-bit Windows), and provides two toolchains, one using Windows threads and one using POSIX threads. The required threading model can be selected using update-alternatives; the default is Windows threads to minimise the change since Debian's last stable release. A specific threading model can also be used for a given compilation by suffixing the compiler with either -posix or -win32, e.g. i686-w64-mingw32-gcc-posix to explicitly use POSIX threads.
The changelog snippet given above doesn't explain how this bug was fixed: gcc-mingw-w64 now uses the upstream default exception handling (SJLJ for 32-bit Windows, SEH for 64-bit Windows), and provides two toolchains, one using Windows threads and one using POSIX threads. The required threading model can be selected using update- alternatives; the default is Windows threads to minimise the change since Debian's last stable release. A specific threading model can also be used for a given compilation by suffixing the compiler with either -posix or -win32, e.g. i686-w64- mingw32- gcc-posix to explicitly use POSIX threads.