[Bug 436540] Re: openswan ftbfs in karmic

[StefanPotyra]

Hi,

nope, sorry, that's not good:

"/build/buildd/openswan-2.6.22+dfsg/programs/tncfg/tncfg.c:362: error:
dereferencing pointer 'shc' does break strict-aliasing rules"

this should get fixed either with -fno-strict-aliasing or even better by
an explicit cast to void * (and then to struct ipsecwhatever) in line
179.

Short explanation: In C, it's only legal to cast a pointer of one type
to another, if it is a char * or a void *. gcc makes use of this
knowledge in its alias anylsis (can one pointer refer to the same thing
as another pointer), and hence has the possibility to assume that these
two pointers are never the same. This can hence result in wrong
optimizations.

Can you respin the debdiff please? (if there are other errors, it might
of course be a good idea to disable Werror nonetheless).

Thanks,
     Stefan.

-- 
openswan ftbfs in karmic
https://bugs.launchpad.net/bugs/436540
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