Some strange problem related Qt static library.
I have created a static library using already available Qt static libraries like core/gui/network/xml, I included them in my development project and created my static library myLib.lib.
Now I wanted to write a Qt based test app which will be using my lib but it seems I need to include all those Qt libraries again in my test app, is it correct or I missed something?
Without including xml and network Qt libs it is giving linker error.
I know that if you use the VC compiler, and "link" some static library with other third-party libraries, then there is no need for your application to be linked with those third-party libraries. If you use MinGW compiler, I think it comes in the situation you mentioned. However a static library can not be "linked" with other third-party libraries, only dynamic libraries and applications can be in the true sense in link with other libraries.
But I am using Visual Studio compiler.
Well, when you compile something static the linker does not include all the symbols in the resulting binary, it usually just picks the ones referenced. So if your library A has references to symbols 1, 2 and 3 of library B only those are included. If your application now references symbol 4, 5 and 6 of library B, but is just linked against A (which has only 1, 2 and 3) you will get an linker error and you will have to link against library B again (so the linker can pull out symbol 4, 5 and 6).