Import basename_r and dirname_r from FreeBSD?

FreeBSD has thread-safe basename_r()and dirname_r(). Is it okay to import
them?

http://www.freebsd.org/cgi/cvsweb.cgi/src/lib/libc/gen/basename.c?rev=1.9
http://www.freebsd.org/cgi/cvsweb.cgi/src/lib/libc/gen/dirname.c?rev=1.8

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Emmanuel Dreyfus
http://hcpnet.free.fr/pubz
manu <at> netbsd.org