Hot to add a library to .pro with Template = lib?

[leonardo M B]

I was using the GetProcessMemoryInfo function from the <psapi.h> header and included a LIBS += -lpsapi in the .pro file of the project, this project have a TEMPLATE = app. I noticed that I will have to use the GetProcessMemoryInfo in another file that is part of a project that its .pro have a TEMPLATE = lib. I Tryed adding LIBS += -lpsapi like in the other but it didn't work, it gives:
error: undefined reference to `GetProcessMemoryInfo@12'

[ChrisW67]

Did you re-run qmake after modifying the PRO file?

Post the entire linker command line preceding the error message.