看qmake的帮助就知道了,这个是qmake中对于CONFIG 变量的一个选项:
When using the lib template, the following options can be added to the CONFIG variable to determine the type of library that is built:
Option Description
dll The library is a shared library (dll).
staticlib The library is a static library.
plugin The library is a plugin; this also enables the dll option.
但是我试了下,按你说的直接构建是可以生产DLL文件的,版本也和你的一致。