gf2x fails to build with GCC 5.1 #18580
Description
I get
libtool: link: gcc -O2 -g -Wall -W -mpclmul -o update-thresholds update-thresholds.o replace.o
./tunetoom -s 1.05 100 -o tunetoom.res
10 TC2:1.42e-07 TC3:0.00e+00 TC3W:2.72e-07 TC4:0.00e+00 best:1.42e-07 TC2
11 TC2:1.53e-07 TC3:0.00e+00 TC3W:3.74e-07 TC4:0.00e+00 best:1.53e-07 TC2
12 TC2:1.72e-07 TC3:0.00e+00 TC3W:4.30e-07 TC4:0.00e+00 best:1.72e-07 TC2
13 TC2:2.39e-07 TC3:0.00e+00 TC3W:4.25e-07 TC4:0.00e+00 best:2.39e-07 TC2
14 TC2:2.59e-07 TC3:0.00e+00 TC3W:4.86e-07 TC4:0.00e+00 best:2.59e-07 TC2
15 TC2:3.12e-07 TC3:0.00e+00 TC3W:4.81e-07 TC4:0.00e+00 best:3.12e-07 TC2
16 TC2:3.45e-07 TC3:0.00e+00 TC3W:5.69e-07 TC4:0.00e+00 best:3.45e-07 TC2
17 Error: Kara and TC3 differ for 17x17 at word 10
failed:=[[1804289383, 846930886, 1681692777, 1714636915, 1957747793, 424238335, 719885386, 1649760492, 596516649, 1189641421, 1025202362, 1350490027, 783368690, 1102520059, 2044897763, 1967513926, 1365180540],[1540383426, 304089172, 1303455736, 35005211, 521595368, 294702567, 1726956429, 336465782, 861021530, 278722862, 233665123, 2145174067, 468703135, 1101513929, 1801979802, 1315634022, 635723058],[2275208724440845966, 578835738574109472, 570907324271046658, 1721997420105918243, 47478187739472868, 2305068767181959844, 490632590654943332, 1648018861384150968, 1872486827742044477, 1811960975040491224, 2038303057396306481, 1812554215605348157, 586551633139081423, 2265129573793559332, 1265216569049212830, 231022760417897247, 879627083851098905, 1484277262406484998, 1032241803148982813, 97066198695746088, 1537851430801362415, 532335089721381249, 974274190033416458, 1428585459552938882, 2120216175782401425, 421032103174243316, 2187544794608990614, 1837540120186350729, 2233724571656724210, 1225084381300543628, 955860066683444378, 1731325861233837476, 794963405273605304, 0],[2275208724440845966, 578835738574109472, 570907324271046658, 1721997420105918243, 47478187739472868, 2305068767181959844, 490632590654943332, 1648018861384150968, 1872486827742044477, 1811960975040491224, 11261675094251082289, 16634189858104203458, 8636820403715694384, 2265129573793559332, 10488588605903988638, 18215721313291654368, 8343744953003676902, 1484277262406484998, 8191130233705792994, 97066198695746088, 10761223467656138223, 17914408983988170366, 17472469883676135157, 17018158614156612733, 2120216175782401425, 421032103174243316, 2187544794608990614, 1837540120186350729, 2233724571656724210, 1225084381300543628, 955860066683444378, 1731325861233837476, 794963405273605304, 0]];
Makefile:2202: recipe for target 'tunetoom.res' failed
make[4]: *** [tunetoom.res] Aborted (core dumped)
make[4]: *** Deleting file 'tunetoom.res'
make[4]: Leaving directory '/mnt/disk/home/release/Sage/local/var/tmp/sage/build/gf2x-1.1.p1/src/src'
Makefile:976: recipe for target 'tune-toom' failed
make[3]: *** [tune-toom] Error 2
make[3]: Leaving directory '/mnt/disk/home/release/Sage/local/var/tmp/sage/build/gf2x-1.1.p1/src'
Error: Failed to tune gf2x.
when building with
(sage-sh) jdemeyer@tamiyo:sage-config$ gcc --version
gcc (GCC) 5.1.0
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
or with the default compiler on Fedora 22:
$ gcc --version
gcc (GCC) 5.1.1 20150422 (Red Hat 5.1.1-1)
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
CC: @sagetrac-captaintrunky
Component: packages: standard
Author: Jeroen Demeyer
Branch: 317056e
Reviewer: François Bissey
Issue created by migration from https://trac.sagemath.org/ticket/18580