[strongSwan] why not use gcc extension to facilitate us

[Martin Willi]

Hi,

> I find lots of function calls of 'library_init' or 'libhydra_init'
> etc. in the source code.
> why don't we just use the GCC extension '__attribute__
> ((constructor))' and '__attribute__((destructor))' to facilitate our
> work?
> Is there any other concerns?

Yes. The order of invocation of these function relies on different
criteria, including linking order. It is hard to get it correct for all
cases, hence we switch from constructor/destructor to explicit
initialization calls a few years ago.

Regards
Martin