Implement tcdrain in the pthread library. The fact that this function
is missing was reported in bug #70344 but the reporter then closed the
bug saying that they were using the wrong version of valgrind.

Patch from Henrik Algestam <algestam@home.se>.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2346 a5019735-40e9-0310-863c-91ae7b9d1cf9
2 files changed