[Qt-interest] Qt 4.5.0 and Mingw compiler strange behaviour

[Davide]

Hi all.
I'm using Qt 4.5.0 LGPL with MinGW compiler on Windows XP (using
Eclipse and Qt integration as IDE).
I'm observing a strange behaviour of the compiler and I don't
understand the cause.

Very simple example:
I define a class in "myClass.h" with a private variable

private:
     int myVar;

in the class constructor defined in "myClass.cpp" I modify the value of myVar:

myVar = 100;

I build the program and all works fine.

Now I comment the myVar declaration in "MyClass.h"

private:
//     int myVar;

I save the file, run the compiler and I get NO errors. (The compiler
understand that a file has been modified because it recompiles
"MyClass.cpp" file)
It's quite strange, isn't it?
Then I clean the project, I rebuild the whole project and now I get
errors because myVar is not defined.
How is it possible?

For a small project it is possible to clean and rebuid each time but
with a big project the complete rebuid takes some minutes and this
problem is very annoying.

Do you have any idea?

Thanks
   Davide

-- 
Davide Ghezzi

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