Defining build options based on available compiler version

[Thomas Spura]

On Sat, 30 Jul 2011 21:39:24 +0100
Niels de Vos wrote:

> Watch out, this is very dangerous! You are comparing strings, not
> versions:
> >>> print '4.6.2' >= '4.6.12'
> True

Thanks... I was testing with to low numbers... :(

> The better way would be to use distutils.version:
> >>> from distutils.version import StrictVersion
> >>> print StrictVersion('4.6.2') >= StrictVersion('4.6.12')
> False
> 
> It is possible to write this one one line, but that looks reall ugly:
> 
> %global true_or_false %(python -c "from distutils.version import
> StrictVersion as v; print v(%{gccver}) >= v('4.6.0')")

Some '' are missing around gccver.

Thanks,
  Thomas