make install doesn't work

[Loc888]

INSTALL_HEADERS += /test.dll
trg.path = C:/Users/bambo/Desktop/test
trg.files = $$INSTALL_HEADERS
INSTALLS += trg

That's the only thing was able to find when it comes to using that make installs, it's not clear where it should be put, after building the program nothing appears in the target.

[ChrisW67]

Have you tried running make install after you build the project?

Are you sure that test.dll, which is indeed a strange "header", lives in the root directory of the current disk?