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* Makefile: Blacklist functions that threaded programs cannot use safely.Ben Pfaff2013-06-281-0/+90
Some functions that POSIX says cannot be used safely in multithreaded programs are not on the initial blacklist: - getenv() should be safe in real implementations in the absence of changes to the environment. (putenv() and setenv() are blacklisted.) - We only use getopt() before spawning extra threads, and I expect this to continue to be true. Signed-off-by: Ben Pfaff <blp@nicira.com>