Issue Building Subdirs Project

agconnell

I have a subdirs project with the following structure

main
  |__main.pro
  |__app
  |     |__app.pro
  |     |__Qxls
  |           |__qxls.pri      
  |__mylib
  |     |__mylib.pro
  |__mytest
        |__mytest.pro

Everything compiles and runs fine. My issue is if I change some class in the app and compile (ctrl-b) it picks up the changes no problem. However, if I change a class in mylib or mytest ctrl-b does not pick up the changes, I have to do a rebuild which takes a few minutes and is a big waste of time. I reference Qxls from both the mylib and mytest sub projects and I suspect this is the issue, but that's just a guess. What change should I make or how do I resturcture the project to make a simple compile work for the sub projects. If you need to .pro and .pri files I can attach

SGaist

Hi and welcome to devnet,

Static or dynamic libraries ?

agconnell

@SGaist they are static (CONFIG += staticlib) but willing to change

SGaist

In that case, you need to use PRE_TARGETDEPS.

J.Hilk

@agconnell can you show the main pro file, that manages your project?

aconnell

To close the loop on this, I changed the layout of the project and added PRE_TARGETDEPS as noted below. It works as expected now. Thanks!

main
  |__main.pro
  |__app
  |     |__app.pro   
  |__mylib
  |     |__mylib.pro
  |__mytest
  |     |__mytest.pro
  |__Qxls
		|__qxls.pro

win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$OUT_PWD/../QXlsx/release/libQXlsx.a
else:win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$OUT_PWD/../QXlsx/debug/libQXlsx.a
else:win32:!win32-g++:CONFIG(release, debug|release): PRE_TARGETDEPS += $$OUT_PWD/../QXlsx/release/QXlsx.lib
else:win32:!win32-g++:CONFIG(debug, debug|release): PRE_TARGETDEPS += $$OUT_PWD/../QXlsx/debug/QXlsx.lib
else:unix: PRE_TARGETDEPS += $$OUT_PWD/../QXlsx/libQXlsx.a