actually define errno
fix dynamic case
more recent version (still broken)
add some threading tests
no longer needed
support clang by adding -fno-integrated-as
Revert "errno: fixed TLS linking issue"

This reverts commit e9915bb6b694f46a3f41e4a89ea6d10af5b422ab.
Merge branch 'origin' into ensc/0.33

Conflicts:
	Makefile