Bug 345517 – dev-python/pycuda: Verify and potentially improve Python-related code

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Arfrever Frehtes Taifersar Arahesis (RETIRED) 2010-11-15 02:32:42 UTC]

- If this package can be used as a library and installs Python modules
  (*.so or *.py) into site-packages directories, then consider supporting
  installation for multiple Python versions.
  Please read section "Types of packages" in documentation [1] to decide
  if this package can support installation for multiple Python versions.

- Ensure that the ebuilds do not use deprecated functions or variables.

- Please check if Python 3 is supported by this package. You can temporarily
  set Python 3 as main active version of Python to properly test if this
  package supports Python 3.

- If this package does not support Python 3:
  - Specify dependency on Python 2.
    You can use PYTHON_DEPEND helper variable, which should be set before
    inheriting of python eclass.
    Please read section "Specification of dependency on Python" in
    documentation [1].

  - If this package cannot support installation for multiple versions of
    Python, then set active version of Python using
    python_set_active_version().

  - Ensure that shebangs in installed scripts specify correct version of
    Python. If shebangs are too generic (e.g. '#!/usr/bin/python'), then you
    can use python_convert_shebangs() to convert shebangs.
    (Wrapper scripts generated by python_generate_wrapper_scripts() do not
    require any changes.)
    Please read section "Shebangs in installed scripts" in documentation [1].

  - To ensure that changes applied to the ebuilds are sufficient, please
    temporarily set Python 3 as main active version of Python and test if
    this package can be properly installed and if it works at run time.

Please see documentation [1] for more details.
[1] http://www.gentoo.org/proj/en/Python/developersguide.xml

[Comment 1 Michal Januszewski (RETIRED) 2010-12-12 19:54:38 UTC]

Fixed in CVS.

[Comment 2 Arfrever Frehtes Taifersar Arahesis (RETIRED) 2010-12-12 19:58:13 UTC]

The ebuilds still don't work correctly when Python 3.* is set as main active version of Python.

[Comment 3 Ian Delaney (RETIRED) 2011-11-13 21:26:54 UTC]

dont't work when python 2.6 or 7 is set either.

/usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lcuda
collect2: ld returned 1 exit status
error: command 'x86_64-pc-linux-gnu-g++' failed with exit status 1

a mystery as to what supplies the missing libcuda

[Comment 4 Michal Januszewski (RETIRED) 2011-11-20 17:29:03 UTC]

(In reply to comment #3)
> dont't work when python 2.6 or 7 is set either.
> 
> /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/../../../../x86_64-pc-linux-gnu/bin/ld:
> cannot find -lcuda
> collect2: ld returned 1 exit status
> error: command 'x86_64-pc-linux-gnu-g++' failed with exit status 1
> 
> a mystery as to what supplies the missing libcuda

This should normally be provided by nvidia-drivers:

$ qfile /usr/lib64/libcuda.so
x11-drivers/nvidia-drivers (/usr/lib64/libcuda.so)

[Comment 5 Arfrever Frehtes Taifersar Arahesis 2011-11-20 19:49:37 UTC]

(In reply to comment #4)

dev-python/pycuda doesn't specify dependency on x11-drivers/nvidia-drivers.

[Comment 6 Justin Lecher (RETIRED) 2012-01-10 16:17:13 UTC]

+*pycuda-2011.2.2 (10 Jan 2012)
+
+  10 Jan 2012; Justin Lecher <[e-mail]> -pycuda-0.94.2.ebuild,
+  -pycuda-2011.1.2.ebuild, +pycuda-2011.2.2.ebuild, pycuda-9999.ebuild,
+  metadata.xml:
+  Version Bump, Dropped old, fixes python.eclass related issues, do not link
+  against bundled boost, fix finding of system cuda related libs, use git
+  submodules, #345517, #383041 and #384211; thanks JTRiley for the many fixes
+