[Octave-bug-tracker] [bug #53922] unsetenv does not unset environment variables on Windows

[Mike Miller]

Follow-up Comment #8, bug #53922 (project octave):

As I mentioned earlier in comment #4, we need someone to test the Gnulib
function wrappers for 'putenv', 'setenv', and 'unsetenv', to see how they
behave and interact with Windows environment variables, and determine which
functions we should be using in Octave.

Octave currently uses both 'putenv' and 'unsetenv', but it's not clear to me
that they were intended to be used together. As consumers of Gnulib we should
work with those functions and feed back any changes or bugs we find so that
Gnulib can be improved for everyone.

Can one of you confirm that Octave does correctly unset environment variables
using 'unsetenv' when everything is upper case? I only have access to Wine,
and under Wine 'unsetenv' doesn't work at all for me.

This is what I get with the 4.4.0 release under Wine:


>> getenv ('FOO')
ans =
>> setenv ('FOO', 'something');
>> getenv ('FOO')
ans = something
>> unsetenv ('FOO');
>> getenv ('FOO')
ans = something


So does 'unsetenv' not work at all, or is it only when the environment
variable has lowercase letters in its name?

    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?53922>

_______________________________________________
  Message sent via Savannah
  https://savannah.gnu.org/