On Thu, Oct 27, 2011 at 5:19 PM, Ralf Gommers <ralf.gomm...@googlemail.com> wrote: > Hi David, > > On Thu, Oct 27, 2011 at 3:02 PM, David Cournapeau <courn...@gmail.com> > wrote: >> >> Hi, >> >> I was wondering if we could finally move to a more recent version of >> compilers for official win32 installers. This would of course concern >> the next release cycle, not the ones where beta/rc are already in >> progress. >> >> Basically, the pros: >> - we will have to move at some point >> - gcc 4.* seem less buggy, especially C++ and fortran. >> - no need to maintain msvcr90 vodoo >> The cons: >> - it will most likely break the ABI >> - we need to recompile atlas (but I can take care of it) >> - the biggest: it is difficult to combine gfortran with visual >> studio (more exactly you cannot link gfortran runtime to a visual >> studio executable). The only solution I could think of would be to >> recompile the gfortran runtime with Visual Studio, which for some >> reason does not sound very appealing :) > > To get the datetime changes to work with MinGW, we already concluded that > building with 4.x is more or less required (without recognizing some of the > points you list above). Changes to mingw32ccompiler to fix compilation with > 4.x went in in https://github.com/numpy/numpy/pull/156. It would be good if > you could check those.
I will look into it more carefully, but overall, it seems that building atlas 3.8.4, numpy and scipy with gcc 4.x works quite well. The main issue is that gcc 4.* adds some dependencies on mingw dlls. There are two options: - adding the dlls in the installers - statically linking those, which seems to be a bad idea (generalizing the dll boundaries problem to exception and things we would rather not care about: http://cygwin.com/ml/cygwin/2007-06/msg00332.html). > It probably makes sense make this move for numpy 1.7. If this breaks the ABI > then it would be easiest to make numpy 1.7 the minimum required version for > scipy 0.11. My thinking as well. cheers, David _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
