Please test pari-2.5.5 prerelease 1

[Bill Allombert <Bill.Allombert@math.u-bordeaux1.fr>]

Dear PARI developers,

I have made a prerelease of PARI 2.5.5.

Please test the prerelease tarball:
<http://pari.math.u-bordeaux.fr/pub/pari/snapshots/pari-2.5.5.pre1.tar.gz>

The expected release date is set to the 20/09/2013

This release addresses some problem while compiling with gcc 4.8 and a bug with
local() that can lead to corruption when shadowing an already existing variable.

Below is the changelog:

Done for version 2.5.5 (released 20/09/2013):

  Fixed
BA  1- [native kernel] FFT mulii relied on unspecified order
       of evaluation                                                [2.6.0-F118]
BA  2- [Configure] fix support for multiarch systems for GMP
    3- local() could corrupt polynomial variable of the same name           [F4]
    4- Flm_Fl_mul returned a wrong result                                  [F12]
    5- allocatemem(2^36-1) --> corrupted stack [#1437]                     [F14]
    6- stack corruption in carberkowitz / charpoly(,,3) [ session crash ]  [F19]
    7- subst(O(x^2),x,0*x) => SEGV [#1447]                                 [F20]
    8- bnfcertify() when primelimit < Zimmert bound => oo loop
    9- dirmul/dirdiv: incorrect result length when valuation > 1           [F23]
   10- x,y a t_PADIC, x === y always returned 0                            [F24]
   11- round((1e-40+x) / (1e-39+x)) would create the invalid object x/x    [F26]
   12- polgalois(x^11 + 627*x^4 - 584) -> F_110 instead of S_11 [#1460]    [F27]

Thanks in advance,
Bill.