On Wed, 4 Nov 2009 13:11:29 +0000, Nicholas Clark <nick@[...].org>  wrote:

>  On Wed, Nov 04, 2009 at 01:01:32PM +0000, Tim Bunce wrote:
>  
>  > It seems to me that -Duseshrplib conflates two things that should be
>  > separate: a) the building and installing of a shared libperl, and
>  > b) linking the perl executable against it instead of the libperl.a.
>  
>  Should we therefore compile all object code with -fPIC, with the same
>  object files linked statically to the perl executable, and used in the
>  shared library?
>  
>  Or should we compile everything twice, once with -fPIC and once without,
>  using the -fPIC code for the shared library, and the normal code for the
>  executable?
>  
>  The distinction between -fPIC and not matters on at least x86_64
>  
>  (It used to matter on ARM, but they found a way to deal with relocations,
>  such that build systems that assumed that all world is a VAX 2.0 would
>  still work)

/me is in favour of compiling everything with -fPIC (or +Z on HP-UX cc)
where possible

-- 
H.Merijn Brand  http://tux.nl      Perl Monger  http://amsterdam.pm.org/
using & porting perl 5.6.2, 5.8.x, 5.10.x, 5.11.x on HP-UX 10.20, 11.00,
11.11, 11.23, and 11.31, OpenSuSE 10.3, 11.0, and 11.1, AIX 5.2 and 5.3.
http://mirrors.develooper.com/hpux/           http://www.test-smoke.org/
http://qa.perl.org      http://www.goldmark.org/jeff/stupid-disclaimers/