Re: [ANN] mathx for Lua 5.3

[Dirk Laurie <dirk.laurie@...>]

2015-05-06 12:45 GMT+02:00 Rob Kendrick <rjek@rjek.com>:
> On Wed, May 06, 2015 at 07:34:18AM -0300, Luiz Henrique de Figueiredo wrote:
>> > Strictly speaking, -fPIC is needed for any shared library.  It just
>> > happens that there's a happy coincidence that means you can often get
>> > away without it on 32 bit x86.
>>
>> Mac OS X does not need -fPIC, even in 64-bit machines.
>
> My guess here is that this is either that it is enabled by default there
> because they do ASLR, or it's some strange fall-out from OS X's bizarre
> binary format :)
>
> A shared library needs to be position independent code, that much is
> non-negotiable, but some tooling probably handles it for you.  It
> should always be safe to add.

And the reason that -shared does not imply -fPIC is presumably
that -fpic might be adequate.