Hi!

(Original question in SO: http://stackoverflow.com/questions/3...lar-in-windows)

I'm trying to install QwtPolar 1.1.1 in Windows over Qwt 6.1.2.

I managed so far to successfully install Qwt and I can see the .prf and 2 .pri in the features folder. Then I go to the QwtPolar folder, call for qmake -set QMAKEFEATURES C:\Qt\Qwt-6.1.2 and check if it was added with qmake -query, which returns positive. Then I call qmake qwtpolar.pro with no problems, but when mingw32-make is called, I always get the same error: it wasn't possible to find some Qwt headers.

Judging Uwe's final answer in this thread, I suppose qmake is failing to do it's job with the .prf since I can't see, in the error message, the moment where the qwt header files are supposed to be included:

qwtpolar error.jpg

Well I ran out of options. What should I do?