[QBS] Why we need set Qt Default Path for qt-based application?

[Ruslan Nigmatullin]

14.03.2012, 15:01, "Joerg Bornemann" <joerg.bornemann at nokia.com>:
> On 14/03/2012 05:43, ext Loaden wrote:
>
>>  When I test Qbs with "tests\manual\application", I got this error, So I
>>  wonder why we need set a default qt path?
>
> qbs does not use the current environment to build a project.
> It uses its own build environment. The up-side is that you do not have
> to build your projects in the right shell. Especially on Windows is this
> useful where you usually use separate shells for MSVC Win32 and MSVC
> x64. Same goes for Qt versions: you don't have to fiddle around with the
> environment to build with a different Qt version.
> The down-side is that you have to register your Qt version somewhere.
>
>>  And how to set it?
>
> See Stéphane's mail. :)
>
> BR,
>
> Jörg

Why don't qbs try to detect Qt's installation at first run? It should work in most situations correctly.
Qbs may get all needed information from Qt's QLibraryInfo