why I can't change my POSIX2_VERSION?
I am using Ubuntu,
getconf -a | grep ^POSIX2_VERSION
it shows POSIX2_VERSION 200809
then I do export POSIX2_VERSION=199209
then I check again getconf -a | grep ^POSIX2_VERSION
it still shows POSIX2_VERSION 200809
why I cannot change the POSIX2_VERSION value?
|