by salviati.gnu:

Before filing a bug, please check whether it has been fixed since
the latest release: run "hg pull -u" and retry what you did to
reproduce the problem.  Thanks.

What steps will reproduce the problem?
1. Set a variable with os.Setenv
2. Try accessing it with libc's getenv
3.

What is the expected output?
See the new environment variable at C side.

What do you see instead?
That the newly assigned variable is not actually exported.

Which compiler are you using (5g, 6g, 8g, gccgo)?
8g

Which operating system are you using?
Arch Linux

Which revision are you using?  (hg identify)
8g version release.2011-02-24 7583

Please provide any additional information below.