[Qbs] How to use qbspkgconfig?

[Björn Schäpers]

Hi,

my main problem is I have MinGW32 und MinGW64, the pkg-config of the latter is 
first (or only) in PATH, thus dependencies through pkg-config will get the 
inlcude paths etc. for the 64 bit variant. Now I have a dependency which checks 
the bitness in the header and errors out on 32 bit.

I thought this could be solved with qbspkgconfig and qbsModuleProviders, but it 
either can't or I fail to see how. And the documentation is not really helping, 
I'm afraid.

I've tried qbsModuleProviders: ["qbspkgconfig"] which fails to find "botan-2", 
and Qt. So I went for qbsModuleProviders: ["Qt", "qbspkgconfig"], now it only 
fails to find "botan-2". Do I have to state where to find the .pc files? And if 
yes how, and why? Then I could just continue to use pkg-config and set the 
libDirs path, right? Although that would not be nice, since I don't want to 
hardcode the path.

Kind Regards,
Björn.