Opened 7 years ago

Closed 6 years ago

Last modified 3 years ago

#20258 closed defect (fixed)

giacpy does not build on 7.1

Reported by: Thierry Monteil Owned by:
Priority: critical Milestone: sage-duplicate/invalid/wontfix
Component: packages: optional Keywords: sdl
Cc: Han Frederic, Jeroen Demeyer Merged in:
Authors: Reviewers:
Report Upstream: N/A Work issues:
Branch: Commit:
Dependencies: Stopgaps:

Status badges

Description (last modified by Han Frederic)

Tested on Debian jessie, both 32 and 64 bits, gives the following:

Here is the relevant part of the log:

running install
running build
running build_ext
cythoning giacpy.pyx to giacpy.cpp
building 'giacpy' extension
creating build
creating build/temp.linux-x86_64-2.7
gcc -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wno-unused -fPIC -I/opt/sagemath/sage-source/local/include -I/opt/sagemath/sage-source/local/include/python2.7 -I/opt/sagemath/sage-source/local/lib/python2.7/site-packages/numpy/core/include -I/opt/sagemath/sage-source/local/lib/python2.7/site-packages -I/opt/sagemath/sage-source/local/lib/python2.7/site-packages/sage/ext -I/opt/sagemath/sage-source/local/include/python2.7 -c giacpy.cpp -o build/temp.linux-x86_64-2.7/giacpy.o
In file included from /opt/sagemath/sage-source/local/include/giac/poly.h:25:0,
                 from /opt/sagemath/sage-source/local/include/giac/giac.h:5,
                 from giacpy.cpp:257:
/opt/sagemath/sage-source/local/include/giac/index.h:33:0: warning: ignoring #pragma anon_unions  [-Wunknown-pragmas]
 #pragma anon_unions
giacpy.cpp:262:28: fatal error: struct_signals.h: No such file or directory
 #include "struct_signals.h"
compilation terminated.

I add Jeroen in cc since it might be related to changes in cython signals.

This trac will be solved by #19873.

Change History (10)

comment:1 Changed 7 years ago by Jeroen Demeyer

I believe that this is no longer supported in Cython (at least I don't find it in the Cython documentation):

from Cython.Distutils import build_ext
    cmdclass={'build_ext': build_ext}

I recommend you to use cythonize() instead, see

Last edited 7 years ago by Jeroen Demeyer (previous) (diff)

comment:2 Changed 7 years ago by Han Frederic

Thank you for the report and the suggestion. I could reproduce the error with sage 7.1.beta6. So I have tried the following

#!/usr/bin/env python

from sage.env import SAGE_LOCAL,SAGE_SRC
import os

from distutils.core import setup
from distutils.extension import Extension
from Cython.Build import cythonize

conf = {'CXXFLAGS' : [], 'LDFLAGS' : []}

# in sage 6.7 cimport Integer needs ccobject.h but it was moved to SAGE_SRC/sage/ext
# But in sage 6.8>= the function sage_include_directories was introduced to gives the includes.
    # Sage >= 6.8
    from sage.env import sage_include_directories
except ImportError:
    # Sage < 6.8
    def sage_include_directories():
        return [
            os.path.join(SAGE_LOCAL, "include"),
            os.path.join(SAGE_LOCAL, "include", "csage"),
            os.path.join(SAGE_SRC, "sage", "ext"),
    # (on sage 6.7 without csage gives undefined symbols _signals)



                   "giacpy",                 # name of extension
                   ["giacpy.pyx"], #  our Cython source
#cmdclass={'build_ext': build_ext}


    description='A Cython frontend to the c++ library giac. (Computer Algebra System)',
    author='Frederic Han',
    license='GPLv2 or above',

I can build giacpy on sage 7.1.beta6, but now older version of sage can't because:

 File "/usr/local/sage-6.9-x86_64-Linux/local/lib/python2.7/site-packages/Cython-0.23.1-py2.7-linux-x86_64.egg/Cython/Compiler/", line 177, in error
    raise InternalError(message)
Cython.Compiler.Errors.InternalError: Internal compiler error: 'sage/ext/interrupt.pxi' not found

comment:3 Changed 7 years ago by Jeroen Demeyer

Is it really a problem that older versions do not work?

Anyway, check if you're doing something different with Cython's include_path.

comment:4 Changed 7 years ago by Han Frederic

Dependencies: #19873
Description: modified (diff)

comment:5 Changed 7 years ago by Han Frederic

Status: newneeds_review

This is now solved by #19873.

comment:6 Changed 7 years ago by Vincent Delecroix

Dependencies: #19873
Milestone: sage-7.2sage-duplicate/invalid/wontfix
Status: needs_reviewpositive_review

comment:7 Changed 7 years ago by Miguel Marco

I am getting this error when i try to install giacpy:

sage-logger 'sage-spkg  giacpy-0.5.5' '/home/mmarco/sage/logs/pkgs/giacpy-0.5.5.log'
Found local metadata for giacpy-0.5.5
Using cached file /home/mmarco/sage/upstream/giacpy-0.5.5.tar.gz
Setting up build directory for giacpy-0.5.5
Finished set up
Host system:
Linux neumann 4.1.15-gentoo-r1 #1 SMP PREEMPT Wed Jan 27 20:58:07 CET 2016 x86_64 Intel(R) Core(TM) i7 CPU 950 @ 3.07GHz GenuineIntel GNU/Linux
C compiler: gcc
C compiler version:
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: ../src/configure --prefix=/home/mmarco/sage/local --with-local-prefix=/home/mmarco/sage/local --with-gmp=/home/mmarco/sage/local --with-mpfr=/home/mmarco/sage/local --with-mpc=/home/mmarco/sage/local --with-system-zlib --disable-multilib --disable-nls --enable-languages=c,c++,fortran --disable-libitm  
Thread model: posix
gcc version 4.9.3 (GCC) 
Deleting /home/mmarco/sage/local/lib/python/site-packages/giacpy*

Error compiling Cython file:
     g=(g*M+gen(<long long>i))

   g=g*gen(<long long>(1<<size))+gen(<long long> a)
   if aneg:

giacpy.pyx:5112:7: Invalid operand type for '-' (gen)
Compiling giacpy.pyx because it changed.
[1/1] Cythonizing giacpy.pyx
Traceback (most recent call last):
  File "", line 47, in <module>
    language="c++")], include_path=include_path
  File "/home/mmarco/sage/local/lib/python2.7/site-packages/Cython-0.24-py2.7-linux-x86_64.egg/Cython/Build/", line 912, in cythonize
  File "/home/mmarco/sage/local/lib/python2.7/site-packages/Cython-0.24-py2.7-linux-x86_64.egg/Cython/Build/", line 1034, in cythonize_one
    raise CompileError(None, pyx_file)
Cython.Compiler.Errors.CompileError: giacpy.pyx

real    0m3.364s
user    0m3.251s
sys     0m0.131s

comment:8 Changed 7 years ago by Han Frederic

I think it is a different problem, I can reproduce it with sage 7.2.rc1 so I am opening #20569 for this

comment:9 Changed 6 years ago by Volker Braun

Resolution: fixed
Status: positive_reviewclosed

comment:10 Changed 3 years ago by Thierry Monteil

Keywords: sdl added
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