TMPDIR--Thanks

[Tim Evans]

Thanks to William Kucharski, Stephen Friedl, and Doug Gwyn for pointing me
at the man page for tmpnam(3S).  This says the environment variable TMPDIR,
if set, will override anything otherwise specified--at least during
compilation.  My further question is:  can you specify an environment-
wide "TMPDIR" variable which would control location of _other_ temporary
files such as those created by ex/vi?  (Aside from the EXINIT 'directory'
option, that is?)


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