[Numpy-discussion] Debian/Ubuntu patch help (was: ANN: NumPy 1.6.2 release candidate 1)

On Sat, May 12, 2012 at 9:17 PM, Ralf Gommers wrote:

On Sat, May 12, 2012 at 6:22 PM, Sandro Tosi wrote:

...

Hello,

On Sat, May 5, 2012 at 8:15 PM, Ralf Gommers wrote:

...

Hi,

I'm pleased to announce the availability of the first release candidate of NumPy 1.6.2. This is a maintenance release. Due to the delay of the NumPy 1.7.0, this release contains far more fixes than a regular NumPy bugfix release. It also includes a number of documentation and build improvements.

Sources and binary installers can be found at https://sourceforge.net/projects/numpy/files/NumPy/1.6.2rc1/

Please test this release and report any issues on the numpy-discussion mailing list. ... BLD: add support for the new X11 directory structure on Ubuntu & co.

We've just discovered that this fix is not enough. Actually the new directories are due to the "multi-arch" feature of Debian systems, that allows to install libraries from other (foreign) architectures than the one the machine is (the classic example, i386 libraries on a amd64 host).

the fix included to look up in additional directories is currently only for X11, while for example Debian has fftw3 that's multi-arch-ified and thus will fail to be detected.

Could this fix be extended to include all other things that are checked? for reference the bug in Debian is [1]; there was also a patch[2] in previous versions, that was using gcc to get the multi-arch paths - you might use as a reference, or to implement something debian-systems-specific.

[1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=640940 [2] http://anonscm.debian.org/viewvc/python-modules/packages/numpy/trunk/debian/patches/50_search-multiarch-paths.patch?view=markup&pathrev=21168

It would be awesome is such support would end up in 1.6.2 .

Hardcoding some more paths to check in distutils/system_info.py should be OK, also for 1.6.2 (will require a new RC).

The --print-multiarch thing looks very questionable. As far as I can tell, it's a Debian specific gcc patch, only available in gcc 4.6 and up. Ubuntu before 11.10 release also doesn't have it. Therefore I don't think use of --print-multiarch is appropriate for numpy for now, and certainly not a change I'd like to make to distutils right before a release.

If anyone with access to a Debian/Ubuntu system could come up with a patch which adds the right paths to system_info.py, that would be great.

Hi, if there's anyone wants to have a look at the above issue this week, that would be great. If there's a patch by this weekend I can create a second RC, so we can still have the final release before the end of this month (needed for Debian freeze). Otherwise a second RC won't be needed. Ralf