Hi

It's a compile issue on mingw.
Remove pthread_t definition and replace it with diffs in this commit.
https://github.com/laanwj/bitcoin/commit/61d85071405b99c3734606eed31ea8f615c0c77a

src/util.cpp  and src/util.h

13G3U4vXLGYYomw29yfV7Uj6xpWLd52RoR

Thanks