[Issue 5278] gentoo's 'hardended' gcc doesn't work with dmd

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=5278

--- Comment #32 from Martin Nowak <code at dawg.eu> ---
This also affects Ubuntu 16.10 to some degree.

[Hardened system
tutorial/patch](http://forum.dlang.org/post/paeiukmlqrmgwieabvun@forum.dlang.org)
[Cannot link with libphobos2.a with GCC 6.2 on Ubuntu
16.10](http://forum.dlang.org/post/tppsgztsbsdrtkpcbtak@forum.dlang.org)

Using -fPIC -defaultlib=libphobos2.so (the normal shared flags) was reported to
be a workaround for the missing -fPIE support on Ubuntu 16.10.

https://github.com/rejectedsoftware/ddox/issues/134

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