Support the choice of linking against a static/shared build of Qt installed into the same directory.

If possible allow have the build system choose between the static or shared library version of Qt in the same directory. Currently the safest approach is to have different builds of Qt in different directories. This method assumes that the builds have the same qconfig.h and only differ in that one is static and one is a dynamic build.

A suggestion on how that might be done is to support a staticlink.prf which is used by adding "staticlink" to the CONFIG variable in a .pro file. An example of such a .prf for Qt "console" applications for unix is :
unix