Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1
The first thing that Gnulib rpl_getcwd should do, is call the system getcwd and,
if that succeeds (or if it fails with errno == ERANGE), it should just return
what the system getcwd returns. This is in the HAVE_MINIMALLY_WORKING_GETCWD
branch of gnulib/lib/getcwd.c. Can you investigate why that isn't happening on
Android? For example, what is the value of HAVE_MINIMALLY_WORKING_GETCWD?