I have installed qwt on ubuntu and it works.Now i have installed qwt on windows, i have:
qwt -5.1.1.zip and Qt 4.4.3 with MinGw so i have do :
Qt Code: 
  1. C1) Windows Shell
  2.  
  3. Start a Windows Shell, where Qt4 is initialized. ( F.e. with
  4. "Programs->Qt by Trolltech ...->Qt 4.x.x Command Prompt" ).
  5.  
  6. qmake qwt.pro
  7. make
  8.  
  9. If you didn't enable autobuilding of the examples in qwtconfig.pri
  10. you have to build the examples this way:
  11.  
  12. cd examples
  13. qmake examples.pro
  14. make
  15. make install
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However, these commands do not create the folder C:\Qwt-5.1.1 containing lib include e doc, but create a folder lib(libqwt5.a and qwt5.dll) in the same folder containing examples, src, etc. ..,
The example works.If i create my project I do not know what to include
How can I fix this?