Define _GNU_SOURCE for access to CLONE_XXX flags with gibc 2.14 headers.

Based on patch from Dmitry Djachenko <dimhen@gmail.com>.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11802 a5019735-40e9-0310-863c-91ae7b9d1cf9
3 files changed