ticket #627: pari 2.3.2 build fix for Linux PPC 32 bit

["Michael.Abshoff" <michael.abshoff@googlemail.com>]

[This is CCed to sage-devel]

Hello folks,

I am a Sage developer who has ported Sage to 32 bit PPC Linux. While 
doing so I come across the following issue: Linux PPC need -fPIC 
otherwise pari compiles and links fine, but upon execution we get the 
following error:

[mabshoff@localhost sage-2.8.4]$ gp
gp: error while loading shared libraries: 
/tmp/Work/sage-2.8.4/spkg/build/pari-2.3.2.p1/src/Olinux-ppc/libpari-gmp.so.2: 
R_PPC_REL24 relocation at 0x0fc77278 for symbol `sqrt' out of range

The fix is obvious: add -fPIC to DLCFLAGS for linux-ppc.  A path can be 
found at

http://fsmath.mathematik.uni-dortmund.de/~mabshoff/patches/pari-add_-fPIC_to_DLCFLAGS_for_PPC_Linux.patch

After the patch is applied:

[mabshoff@localhost pari-2.3.2.p1]$ gp
                                    GP/PARI CALCULATOR Version 2.3.2 
(released)
                            PowerPC running linux (PPC/GMP-4.2.1 
kernel) 32-bit version
                            compiled: Sep  9 2007, gcc-4.1.2 20070502 
(Red Hat 4.1.2-12)
                                (readline v5.2 enabled, extended help 
not available)

                                       Copyright (C) 2000-2006 The PARI 
Group

PARI/GP is free software, covered by the GNU General Public License, and 
comes
WITHOUT ANY WARRANTY WHATSOEVER.

Type ? for help, \q to quit.
Type ?12 for how to get moral (and possibly technical) support.

parisize = 4000000, primelimit = 500000
?
Goodbye!

I hope you can merge the patch.

Cheers,

Michael

For the Sage people: I have also updated the Sage.spkg an attached all 
information to ticket #627 at

http://trac.sagemath.org/sage_trac/ticket/627