about env directive

[Manlio Perillo]

Hi.

I want to enable the definition of custom environment variables in mod_wsgi.

After a quick search in Nginx sources I have found the env directive and 
the ngx_set_environment function.

Unfortunately the documentation is in Russian only 
http://sysoev.ru/nginx/docs/ngx_core_module.html#env.

I have found some problems with this directive.
- It seems that it is not possible to inherit enviroment variables
   from the "system";
   only variables defined with env directive are added to os environment
- The syntax should be
     env VAR|VAR=VALUE,
   but, as an example,
     env  MALLOC_OPTIONS;
   does not put MALLOC_OPTIONS in the environment.




Thanks  Manlio Perillo