[yocto] Strange certificate problem with wget

[Neuer User]

Hello

I need to use wget with https support in my image. So I added "wget" to
my packages.

The problem is that it doesn't seem to find the installed certificates:

# wget https://www.google.com
--2014-05-19 11:20:42--  https://www.google.com/
Resolving www.google.com... 173.194.113.242, 173.194.113.241,
173.194.113.244, ...
Connecting to www.google.com|173.194.113.242|:443... connected.
ERROR: cannot verify www.google.com's certificate, issued by
'/C=US/O=Google Inc/CN=Google Internet Authority G2':
  Unable to locally verify the issuer's authority.
To connect to www.google.com insecurely, use `--no-check-certificate'.


No problem, when using curl instead.

Seems, I am missing something pretty obvious. Can anybody hint me into
the right direction?

Thanks

Michael