cd bitcoin
git remote add practicalswift https://github.com/practicalswift/bitcoin
git fetch practicalswift
cd ..
./gitian-build.sh -u https://github.com/practicalswift/bitcoin --detach-sign -c -b -o w sjors fix-windows-build
fix-windows-build

In file included from /home/ubuntu/build/bitcoin/depends/i686-w64-mingw32/share/../include/boost/thread/win32/condition_variable.hpp:9:0,
                 from /home/ubuntu/build/bitcoin/depends/i686-w64-mingw32/share/../include/boost/thread/condition_variable.hpp:14,
                 from ./util.h:31,
                 from ./addrman.h:14,
                 from init.cpp:12:
/home/ubuntu/build/bitcoin/depends/i686-w64-mingw32/share/../include/boost/thread/win32/thread_primitives.hpp:177:55: warning: conflicts with previous declaration ‘void* boost::detail::win32::GetModuleHandleA(const char*)’ [enabled by default]
                 __declspec(dllimport) void* __stdcall GetModuleHandleA(char const*);