[Qt-interest] Adding a library created with QT Creator

[John McClurkin]

Patric wrote:
> I have succeeded to compile my project with the library with this simple 
> line without relative paths... :
> win32:LIBS += -LC:/ -lTestLibrary
> 
> And in my library there is a class Test with header Test.h.
> 
> In the main.cpp of my project I'm trying to use this class now
> #include "Test.h"
> And the autocomplete is working for that class. But when I try to 
> compile my project there is an error :
> 
> main.cpp:2:20: circle.h: No such file or directory
> main.cpp: In function `int main(int, char**)':
> 
> main.cpp:7: error: `Test' has not been declared
> 
> main.cpp:7: error: `testMethod' was not declared in this scope
> 
> main.cpp:7: warning: unused variable 'testMethod'
> 
> mingw32-make[1]: *** [debug/main.o] Error 1
> 
> mingw32-make: *** [debug] Error 2
> 
> Exited with code 2.
> 
> Error while building project TestProgram
> 
> When executing build step 'Make'
> 
> 
> 
> I hate this, what's the problem now ? Why it isn't working ?
In your previous post, there are a number of references to mingw32. You 
also say that your library was compiled with Microsoft Visual C++. I may 
be wrong but it has always been my understanding that you can't link 
libraries compiled with Microsoft Visual C++ with applications compiled 
with gcc. Try compiling the library with MinGW32 or compiling the 
application with Microsoft Visual C++.