Problems with qmake

Trainee

Location: Berlin, Germany

Thursday, February 10th 2005, 1:06pm

Hi,

we're using qmake to automatically generate our Makefiles. We have shared libs as well as static ones to link in our executable. The problem is that if one of the static libs has changed for some reason (i.e. lib is newer than executable) and we run make, it says "nothing to be done for ....".
In our .pro-file:

LIBS += -L./lib

LIBS += -lstaticLib
LIBS += -lsharedLib

Does anyone know what's wrong with that?

Thanks in advance

Jupp Tscheak

This post has been edited 1 times, last edit by "flowerJT" (Feb 10th 2005, 1:18pm)

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wysota

Sage

Posts: 4,276

Location: Warsaw, POLAND

2

Thursday, February 10th 2005, 1:24pm

RE: Problems with qmake

Things you put into LIBS are not part of your project, thus make doesn't check if they change. If you want it to work that way, you have to force a dependency between the project executable (or one of its object files) and libraries which you keep in LIBS. You could try to put each library into HEADERS variable, this might create such dependency.

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jacek

Master

Posts: 2,729

Location: Warsaw, Poland

3

Thursday, February 10th 2005, 1:51pm

RE: Problems with qmake

Maybe this will help:

Quoted

From qmake Command Reference:
PRE_TARGETDEPS
All libraries that the target depends on can be listed in this variable. Some backends do not support this, these include MSVC Dsp, and ProjectBuilder .pbproj files. Generally this is support internally by these build tools, this is usefull for explicitly listing dependant static libraries.
This list will go before all builtin dependencies.

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flowerJT

Trainee

Posts: 73

Location: Berlin, Germany

4

Thursday, February 10th 2005, 5:05pm

Thanks for responding...

Jacek, your suggestion sounded promising ... Unfortunatly it did not work. I tried several notations like libStatic.a, Static, Static.a, etc. without result.
Probably we'll have to do a "make clean" in future

Nevertheless thanks for your help!

Jupp Tscheak

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wysota

Sage

Posts: 4,276

Location: Warsaw, POLAND

5

Thursday, February 10th 2005, 5:29pm

Quoted

Originally posted by flowerJT
Thanks for responding...

Jacek, your suggestion sounded promising ... Unfortunatly it did not work. I tried several notations like libStatic.a, Static, Static.a, etc. without result.
Probably we'll have to do a "make clean" in future
Nevertheless thanks for your help!

Jupp Tscheak

You probably have to use an absolute path. Make has to know exactly where those files are.

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flowerJT

Trainee

Posts: 73

Location: Berlin, Germany

6

Tuesday, May 10th 2005, 8:09pm

After losing sight of this problem, my workmate reminded me to solve this problem and i finally did so:

To create dependencies just include TARGETDEPS += libFoo.a to your .pro-file.

Best regards

Jupp Tscheak

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