MOC and Q_OS_XXX defines

[gardiol]

Hi!
i am tyring to create a few alternative classes for different platforms and it seems that the moc compiler does not understand any Q_OS_XXX defines. For example the code:

class Device: public QObject
{    
     Q_OBJECT
... blah ...
public slots:
#ifdef Q_OS_ANDROID
       void mySlot()
#end if

The mySlot() is not recognized at runtime and connect that slot result in a runtime error...

How should i create a platform-dependent slot?

[Huulivoide]

Create a parent class with the common code and a platform
dependent child class for each platform or just don't use
the platform depended slots in platforms that don't support them.

[gardiol]

Yes this was already the case.
I was just trying to avoid compilation of the child class on the wrong platform...

I solved it by moving the SOURCES and INCLUDES in the "pro" file from the global section to a per-platform specific.

Before:

 SOURCES = android-only-class.cpp
 INCLUDES = android-only.headers.h

After:

unix:android {
 SOURCES += android-only-class.cpp
 INCLUDES += android-only.headers.h
}

By the way, the "unix:android" seems to be undocumented, but it works.