Ok, I typed:
Qt Code: 
  1. qmake -set QMAKEFEATURES /usr/local/qwt-6.0.1/features
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Now I have the following settings:
Qt Code: 
  1. ufechner@uwe-ssd:~/00Software/qwtpolar-1.0.0$ qmake -query
  2. QMAKEFEATURES:/usr/local/qwt-6.0.1/features
  3. QT_INSTALL_PREFIX:/usr
  4. QT_INSTALL_DATA:/usr/share/qt4
  5. QT_INSTALL_DOCS:/usr/share/qt4/doc
  6. QT_INSTALL_HEADERS:/usr/include/qt4
  7. QT_INSTALL_LIBS:/usr/lib
  8. QT_INSTALL_BINS:/usr/bin
  9. QT_INSTALL_PLUGINS:/usr/lib/qt4/plugins
  10. QT_INSTALL_IMPORTS:/usr/lib/qt4/imports
  11. QT_INSTALL_TRANSLATIONS:/usr/share/qt4/translations
  12. QT_INSTALL_CONFIGURATION:/etc/xdg
  13. QT_INSTALL_EXAMPLES:/usr/lib/qt4/examples
  14. QT_INSTALL_DEMOS:/usr/lib/qt4/demos
  15. QMAKE_MKSPECS:/usr/share/qt4/mkspecs
  16. QMAKE_VERSION:2.01a
  17. QT_VERSION:4.7.2
  18. ufechner@uwe-ssd:~/00Software/qwtpolar-1.0.0$
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But I still get the same compilation error for qwtpolar:
Qt Code: 
  1. ufechner@uwe-ssd:~$ cd 00Software/qwtpolar-1.0.0/
  2. ufechner@uwe-ssd:~/00Software/qwtpolar-1.0.0$ qmake
  3. ufechner@uwe-ssd:~/00Software/qwtpolar-1.0.0$ make
  4. cd src/ && make -f Makefile 
  5. make[1]: Betrete Verzeichnis '/home/ufechner/00Software/qwtpolar-1.0.0/src'
  6. compiling qwt_polar_fitter.cpp
  7. In file included from qwt_polar_fitter.cpp:9:0:
  8. qwt_polar_fitter.h:13:30: fatal error: qwt_curve_fitter.h: Datei oder Verzeichnis nicht gefunden
  9. compilation terminated.
  10. make[1]: *** [obj/qwt_polar_fitter.o] Fehler 1
  11. make[1]: Verlasse Verzeichnis '/home/ufechner/00Software/qwtpolar-1.0.0/src'
  12. make: *** [sub-src-make_default-ordered] Fehler 2
  13. ufechner@uwe-ssd:~/00Software/qwtpolar-1.0.0$
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My impression is, that qwtpolar 1.0.0 is serverly broken.
Was anybody, who downloaded it able to compile it on Ubuntu Linux?
And if yes, how?

Best regards:

Uwe Fechner