Since tinytest_demo.c now calls Sleep(), we must include <windows.h>. Patch: --- Git-latest/src/ext/tinytest_demo.c 2014-03-13 20:44:56 +0000 +++ src/ext/tinytest_demo.c 2014-03-14 11:21:56 +0000 @@ -36,7 +36,10 @@ #include <string.h> #include <errno.h> #include <time.h> -#ifndef _WIN32 + +#ifdef _WIN32 +#include <windows.h> +#else #include <unistd.h> #endif -------------- Ref. Nicks commit here: https://gitweb.torproject.org/tor.git/commitdiff/1365ff5b9a04a7da2acc2e52df1... --gv