How do a specify a library file dependency for qmake in Qt?

Have a SomeLib.pro file that contains:

CONFIG  += debug
TEMPLATE = lib
TARGET = SomeLib
..

Then in a dependent SomeApp.pro:

..
debug:LIBS += -lSomeLib_debug
..

How can I force SomeApp to build if I touched SomeLib in qmake?

How do you qmake in Qt?

Building a Project For simple projects, you only need to run qmake in the top level directory of your project to generate a Makefile. You can then run your platform's make tool to build the project according to the Makefile.

How do I create a qmake file?

Makefile is a set of commands (similar to terminal commands) with variable names and targets to create object file and to remove them. In a single make file we can create multiple targets to compile and to remove object, binary files. You can compile your project (program) any number of times by using Makefile.

It's ugly because you need to give the exact library file name, but this should work:

TARGETDEPS += libfoo.a