#5847: Update GMP-ECM to 6.3
------------------------------------------------------------+---------------
Reporter: mabshoff | Owner:
leif
Type: enhancement | Status:
needs_work
Priority: major | Milestone:
sage-4.7.1
Component: packages | Resolution:
Keywords: MPIR elliptic curves libecm ecm spkg | Work_issues:
Upstream: N/A | Reviewer:
Leif Leonhardy, Dima Pasechnik
Author: Mike Hansen, Leif Leonhardy, Jeroen Demeyer | Merged:
Dependencies: |
------------------------------------------------------------+---------------
Changes (by mariah):
* status: needs_review => needs_work
Comment:
sage-4.7.1-alpha1 built with http://spkg-
upload.googlecode.com/files/ecm-6.3.p2.spkg on skynet/flavius
(x86_64-Linux-k8-fc) fails test:
{{{
flavius% ./sage -t -long -force_lib "devel/sage/sage/libs/libecm.pyx"
sage -t -long -force_lib "devel/sage/sage/libs/libecm.pyx"
**********************************************************************
File "/home/mariah/sage/sage-4.7.1.alpha1-x86_64-Linux-k8-fc-
review-5847/devel/sage/sage/libs/libecm.pyx", line 14:
sage: import sage.libs.libecm
Exception raised:
Traceback (most recent call last):
File "/home/mariah/sage/sage-4.7.1.alpha1-x86_64-Linux-k8-fc-
review-5847/local/bin/ncadoctest.py", line 1231, in run_one_test
self.run_one_example(test, example, filename, compileflags)
File "/home/mariah/sage/sage-4.7.1.alpha1-x86_64-Linux-k8-fc-
review-5847/local/bin/sagedoctest.py", line 38, in run_one_example
OrigDocTestRunner.run_one_example(self, test, example, filename,
compileflags)
File "/home/mariah/sage/sage-4.7.1.alpha1-x86_64-Linux-k8-fc-
review-5847/local/bin/ncadoctest.py", line 1172, in run_one_example
compileflags, 1) in test.globs
File "<doctest __main__.example_0[2]>", line 1, in <module>
import sage.libs.libecm###line 14:
sage: import sage.libs.libecm
ImportError: /home/mariah/sage/sage-4.7.1.alpha1-x86_64-Linux-k8-fc-
review-5847/local/lib/python/site-packages/sage/libs/libecm.so: cannot
enable executable stack as shared object requires: Permission denied
**********************************************************************
}}}
Looking at the build I see
{{{
Copying patched files...
Adding '-fPIC' to CFLAGS since we don't (also) build a shared library.
Using additional host-specific CFLAGS: -march=native
Settings from SAGE_LOCAL/include/gmp.h:
CC=gcc
CFLAGS=-O2 -m64 -march=k8 -mtune=k8
Using CC=gcc
Using CFLAGS=-march=native -g -O3 -fPIC
Using CPPFLAGS=
Using LDFLAGS=
Using ABI=
(These settings may get overridden by 'configure' or Makefiles.)
}}}
'''Strongly''' suggest ecm be built with same CFLAGS values as gmp/mpir as
recommended by ecm INSTALL file.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5847#comment:98>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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