Hello, i tried to install Qwt-6.0.1 with QtSDK in Windows Xp.

I copy the source files in C:\, and then I execute:

Qt Code: 
  1. qmake qwt.pro
  2. mingw32-make
  3. mingw32-make install
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When I compile a qwt example it runs well in Debug mode, but when I try with Release mode, the program cannot be executed. I obtain this error message:

Qt Code: 
  1. The program has unexpectedly finished.
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I added the following code in my PRO file:

Qt Code: 
  1. CONFIG += qwt
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And I don't know why it doesn't runs. Help me please! Thanks!!