#10252: ecm does not compile on some 32-bit Linux systems
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Reporter: jdemeyer | Owner: tbd
Type: defect | Status: new
Priority: blocker | Milestone: sage-4.6.1
Component: packages | Keywords: ecm spkg-install
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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On the Skynet machine cicero and on a 32-bit Gentoo Linux Pentium D
machine of my own, the ecm package from #5847 does not install in Sage.
The problem is with Sage's {{{spkg-install}}} as the pure upstream sources
in {{{src/}}} work fine.
The following works:
{{{
$ ./configure
$ make
}}}
The following (emulating {{{spkg-install}}}) does NOT work:
{{{
$ export CFLAGS="-g -O3 -fPIC"
$ ./configure
$ make
}}}
It fails with the error
{{{
spv.c: In function 'spv_pwmul':
spv.c:157: error: unknown register name '%xmm7' in 'asm'
spv.c:157: error: unknown register name '%xmm6' in 'asm'
spv.c:157: error: unknown register name '%xmm5' in 'asm'
spv.c:157: error: unknown register name '%xmm3' in 'asm'
spv.c:157: error: unknown register name '%xmm2' in 'asm'
spv.c:157: error: unknown register name '%xmm1' in 'asm'
spv.c:157: error: unknown register name '%xmm0' in 'asm'
}}}
It doesn't actually matter what CFLAGS is set to, it fails even with
{{{
$ export CFLAGS=" "
}}}
This is probably because Sage's CFLAGS overrides ecm's CFLAGS. I think
the easiest solution is simply not set any CFLAGS in ecm's {{{spkg-
install}}}. Since ecm really wants to optimize for a particular machine,
I think the fact that ecm's CFLAGS are not used has also bad consequences
for speed.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10252>
Sage <http://www.sagemath.org>
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