Comment # 12 on bug 991680 from Michael Andres

(In reply to Dominique Leuenberger from comment #11)
> Did you run this as root or user? Root uses config_sysconfig, user uses

As root, as install/update/migration are the libzypp scenarios I'm actually
interested in. 

> (test with _PX_DEBUG=1 wget 

Results vary. Looks like my wget-1.16 uses some strange kind of logic. It
appears as if libproxy is used only if no proxy is defined in the environment: 

> # login with sysconfig/ptroxy OFF
> 
> $ set | grep -i proxy
> 
> $ _PX_DEBUG=1 wget http://suse.de
> Configuration extension is: 26sysconfig_config_extension
> Ingored list is: localhost, 127.0.0.1, .suse.de
> Config is: 
>         direct://
> --2016-08-04 13:35:37--  http://suse.de/

If proxy varialbles are defined, I get no _PX_DEBUG output.

> # login with sysconfig/proxy ON
> 
> $ set | grep -i proxy
> NO_PROXY='localhost, 127.0.0.1, .suse.de'
> ftp_proxy=
> gopher_proxy=
> http_proxy=http://proxy.suse.de:3128/
> https_proxy=http://proxy.suse.de:3128/
> no_proxy='localhost, 127.0.0.1, .suse.de'
> 
> $ _PX_DEBUG=1 wget http://suse.de
> --2016-08-04 13:35:41--  http://suse.de/

But that's a different topic....